SAES-422 Multistate Research Activity Accomplishments Report
Sections
Status: Approved
Basic Information
- Project No. and Title: NRSPOLD6 : Inter-Regional Potato Introduction Project
- Period Covered: 01/01/2002 to 12/01/2002
- Date of Report: 03/20/2003
- Annual Meeting Dates: 06/03/2002 to 06/04/2002
Participants
[Minutes]
Accomplishments
A. Introduction of New Stocks
Dr. Bamberg, accompanied by Charles Fernandez (US Potato Genebank); Dr. Chuck Brown (USDA, Prosser WA); and Dr. Joe Pavek (USDA, Retired), participated in a successful expedition to the southwest United States and obtained 19 new accessions for the collaborative intergenebank research project, and collected additional populations for screening of Columbia root-knot nematode.
A total of 73 seed accessions were assigned PI numbers in 2002: 16 from Russia, 27 from Poland, 11 from Bolivia, and 19 from the SW United States. Six clonal accessions were assigned PI numbers in 2002: 4 from Mexico, 1 from Poland, and 1 from Bolivia. These accessions are now available from the NRSP-6 Solanum germplasm collection.
B. Preservation and Increase of Stocks
In 2002, a total of 91 accessions were increased as botanical seed populations.
A total of 600 potato spindle tuber viroid (PSTV) tests were performed on seed increase parents, seed lots and research materials. Germination tests were performed on 1,106 accessions; ploidy determinations were made on 30 accessions.
Research continues on the use of 2,4-D on pollinated flowers to help with fruit retention and seed production. Growth retardants are being assessed for use as tuber and flower promoters in the wild species and as a method to control plant height in greenhouse and screenhouse-grown plants for crossing.
The Association of Potato Intergenebank Collaborators (APIC) constructed a database of all wild potato holdings of the potato genebanks in Argentina, Europe, Peru, and the United States. The Intergenebank Potato Database (IPD) (www.potgenebank.org/ipd/) continues to be a very useful resource for clientele around the world. Dr. Alfonso del Rio represented NRSP-6 at the APIC meeting in Hamburg, Germany.
A study was completed comparing germplasm from the Russian (VIR) and United States (NRSP-6) duplicate accessions. Most are significantly different. Work continues on comparisons between US and CIP collections. The next step in the study will be to look at DNA comparisons to variation in trait expression or frequency between intergenebank seedlots.
Work continued with Dr. C. Millers lab screening for antioxidants in uncolored wild potato species tubers. Previous screening among species identified ones with promising levels of tuber antioxidant capacity. Some diploid Mexican species seem to have high antioxidant in common: S. cardiophyllum, S. jamesii, and S. pinnatisectum. These and other species were retested with multiple PIs. Variation within promising PIs was also studied. Only S. pinnatisectum demonstrated particularly consistent high levels within populations.
Cold resistant breeding work continues with recurrent selection of S. tuberosum, S. acaule and S. commersonii hybrids. Materials are now maturing earlier with the introgression of very early varieties and which survive in vitro leaf freezing to 5oC. Selections were planted at Copic Bay, Oregon area in the summer of 2002. The best selections will be submitted to UW Madison colleagues for more focused lab assessments.
Late Blight screening at a field site very close to Lake Michigan (cool temperatures and high humidity) was completed for a second year. In 2001, two highly segregating PIs of S. microdontum 473170 and S. okadae 458367 and their F2 hybrids were tested. There was a 70% correlation with previous results on the same clones at Cornell by Bill Fry, so this local test will be useful to verify resistance of newly imported germplasm. In 2002, Polish, Russian, Mexican and CIP introductions were tested.
Geographical parameters and proximity to related species predict genetic variation in the inbred potato species Solanum verrucosum. Such links had not been previously detected in S. fendleri, S. jamesii or S. sucrense. Resolution and fine-tuning to locations may be enhanced by inbreeding and uniformity. The highest correlations to genetic rarity (a populations average genetic difference from all others) were latitude, longitude and proximity to the nearest S. hjertingii population.
C. Classification
Dr. Spooner continues to resolve problems in taxonomic classification that impede both efficient documentation and use of the germplasm. At present Dr. Spooner, in collaboration with Dr. R van den Berg, Dr. R. Hijmans, and Dr. A. Rodriguez, is working on a book of Wild Potato Species of North and Central America, which will be a valuable tool for germplasm users worldwide.
D. Distribution
NRSP-6 distributed 3,447 units of seed, 643 tuber families, 919 in vitro stocks and 215 herbarium samples to clientele in 20 states of the United States and 14 other countries. Internally, NRSP-6 used 6,371 units of seed for chromosome counts, germination tests, identification and taxonomic check plantings, in vitro maintenance, seed increases, PSTV tests, and miscellaneous plantings. The volume and types of stocks sent to various consignee categories are summarized in a table available on the full committee copy of the annual report.
E. Visitors From Other Countries
Ms N. Gomez Panama
Dr. P. Anderson Peru
Dr. J. Prohens Spain
Dr. Y. Hosaka Japan
WORK PLANNED FOR 2003
Evaluation experiments will be continued on Solanum species for the following traits: antioxidants, frost hardiness, rooting vigor, tuber calcium, late blight resistance, hormone mutants, and glycoalkaloids.
The general objective of NRSP-6, to promote and facilitate potato research and breeding, will be pursued by continuing high quality service with respect to introduction, preservation, classification, evaluation, and distribution of potato germplasm to clients in the U.S. and around the world.
APIC intergenebank projects researching the status and dynamics of genetic diversity in the collection using RAPDs and strengthening ties with sister genebanks around the world will be continued.
Dr. Bamberg, accompanied by Charles Fernandez (US Potato Genebank); Dr. Chuck Brown (USDA, Prosser WA); and Dr. Joe Pavek (USDA, Retired), participated in a successful expedition to the southwest United States and obtained 19 new accessions for the collaborative intergenebank research project, and collected additional populations for screening of Columbia root-knot nematode.
A total of 73 seed accessions were assigned PI numbers in 2002: 16 from Russia, 27 from Poland, 11 from Bolivia, and 19 from the SW United States. Six clonal accessions were assigned PI numbers in 2002: 4 from Mexico, 1 from Poland, and 1 from Bolivia. These accessions are now available from the NRSP-6 Solanum germplasm collection.
B. Preservation and Increase of Stocks
In 2002, a total of 91 accessions were increased as botanical seed populations.
A total of 600 potato spindle tuber viroid (PSTV) tests were performed on seed increase parents, seed lots and research materials. Germination tests were performed on 1,106 accessions; ploidy determinations were made on 30 accessions.
Research continues on the use of 2,4-D on pollinated flowers to help with fruit retention and seed production. Growth retardants are being assessed for use as tuber and flower promoters in the wild species and as a method to control plant height in greenhouse and screenhouse-grown plants for crossing.
The Association of Potato Intergenebank Collaborators (APIC) constructed a database of all wild potato holdings of the potato genebanks in Argentina, Europe, Peru, and the United States. The Intergenebank Potato Database (IPD) (www.potgenebank.org/ipd/) continues to be a very useful resource for clientele around the world. Dr. Alfonso del Rio represented NRSP-6 at the APIC meeting in Hamburg, Germany.
A study was completed comparing germplasm from the Russian (VIR) and United States (NRSP-6) duplicate accessions. Most are significantly different. Work continues on comparisons between US and CIP collections. The next step in the study will be to look at DNA comparisons to variation in trait expression or frequency between intergenebank seedlots.
Work continued with Dr. C. Millers lab screening for antioxidants in uncolored wild potato species tubers. Previous screening among species identified ones with promising levels of tuber antioxidant capacity. Some diploid Mexican species seem to have high antioxidant in common: S. cardiophyllum, S. jamesii, and S. pinnatisectum. These and other species were retested with multiple PIs. Variation within promising PIs was also studied. Only S. pinnatisectum demonstrated particularly consistent high levels within populations.
Cold resistant breeding work continues with recurrent selection of S. tuberosum, S. acaule and S. commersonii hybrids. Materials are now maturing earlier with the introgression of very early varieties and which survive in vitro leaf freezing to 5oC. Selections were planted at Copic Bay, Oregon area in the summer of 2002. The best selections will be submitted to UW Madison colleagues for more focused lab assessments.
Late Blight screening at a field site very close to Lake Michigan (cool temperatures and high humidity) was completed for a second year. In 2001, two highly segregating PIs of S. microdontum 473170 and S. okadae 458367 and their F2 hybrids were tested. There was a 70% correlation with previous results on the same clones at Cornell by Bill Fry, so this local test will be useful to verify resistance of newly imported germplasm. In 2002, Polish, Russian, Mexican and CIP introductions were tested.
Geographical parameters and proximity to related species predict genetic variation in the inbred potato species Solanum verrucosum. Such links had not been previously detected in S. fendleri, S. jamesii or S. sucrense. Resolution and fine-tuning to locations may be enhanced by inbreeding and uniformity. The highest correlations to genetic rarity (a populations average genetic difference from all others) were latitude, longitude and proximity to the nearest S. hjertingii population.
C. Classification
Dr. Spooner continues to resolve problems in taxonomic classification that impede both efficient documentation and use of the germplasm. At present Dr. Spooner, in collaboration with Dr. R van den Berg, Dr. R. Hijmans, and Dr. A. Rodriguez, is working on a book of Wild Potato Species of North and Central America, which will be a valuable tool for germplasm users worldwide.
D. Distribution
NRSP-6 distributed 3,447 units of seed, 643 tuber families, 919 in vitro stocks and 215 herbarium samples to clientele in 20 states of the United States and 14 other countries. Internally, NRSP-6 used 6,371 units of seed for chromosome counts, germination tests, identification and taxonomic check plantings, in vitro maintenance, seed increases, PSTV tests, and miscellaneous plantings. The volume and types of stocks sent to various consignee categories are summarized in a table available on the full committee copy of the annual report.
E. Visitors From Other Countries
Ms N. Gomez Panama
Dr. P. Anderson Peru
Dr. J. Prohens Spain
Dr. Y. Hosaka Japan
WORK PLANNED FOR 2003
Evaluation experiments will be continued on Solanum species for the following traits: antioxidants, frost hardiness, rooting vigor, tuber calcium, late blight resistance, hormone mutants, and glycoalkaloids.
The general objective of NRSP-6, to promote and facilitate potato research and breeding, will be pursued by continuing high quality service with respect to introduction, preservation, classification, evaluation, and distribution of potato germplasm to clients in the U.S. and around the world.
APIC intergenebank projects researching the status and dynamics of genetic diversity in the collection using RAPDs and strengthening ties with sister genebanks around the world will be continued.
Impacts
- NRSP-6's purpose is to provide a ready source of raw materials, technology and information to support potato enhancement, breeding and research in the US and around the world. Thus, one way the success of NRSP-6 can be measured is by the use of NRSP-6 germplasm in the pedigrees of new, improved potato cultivars. Another is in the use of NRSP-6 stocks in more basic research programs, which also ultimately contribute to human utilization of the potato crop, these being reflected in publications
- Five cultivar releases were published in the American Journal of Potato Research in 2002: AC Sunbury, IdaRose, Red Companion, Gem Russet, and Bannock Russet. All are known to have wild species in their pedigrees.
- Publications included 124 papers, 32 abstracts, 1 poster, and 3 theses which report the use of NRSP-6 Solanum introductions this year.
Publications
del Rio, A.H. and J.B. Bamberg. 2002. Lack of association between genetic and geographic origin characteristics for the wild potato Solanum sucrense Hawkes. Am. J. Potato Res. 79:335-338.
Hijmans, R.J., D.M. Spooner, A.R. Salas, A. Guarino, and J. de la Cruz. 2002. Atlas of wild potatoes. Systematic and Ecogeographic Studies on Crop Genepools, International Plant Genetic Resources Institute, Rome 10:i-ix, 1-129.
Huaman, Z. and D.M. Spooner. 2002. Reclassification of landrace populations of cultivated potatoes (Solanum sect. Petota). Am. J. Bot. 89:947-965.
Raker, C. and D.M. Spooner. 2002. The Chilean tetraploid cultivated potato, Solanum tuberosum, is distinct from the Andean populations; microsatellite data. Crop Sci. 42:1451-1458.
Rodriguez, A. and D.M. Spooner. 2002. Subspecies boundaries of the wild potatoes Solanum bulbocastanum and S. cardiophyllum based on morphological and nuclear RFLP data. Acta Mexicana 61:9-25.
Spooner, D.M. 2002. Strengths and weaknesses of molecular markers for studies of diversity in genebank holdings. In: Proceedings of the International Workshop on: Aplicaciones de los marcadores moleculares en la conservacion y manejo de la agrobiodiversidad, International Potato Center, CIP, Lima, Peru.
Spooner, D.M., R.G. van den Berg, G. Bryan, and A. del Rio. 2002. Reduction of species in the wild potato Solanum section Petota series Longipedicellata: AFLP, RAPD and chloroplast SSR data. XXVIth International Horticultural Congress, Toronto, ON, Canada, August 11-17, 2002, pp. 114-115. (Abstract)
van den Berg, R.G., G. Bryan, A. del Rio, and D.M. Spooner. 2002. Reduction of species in the wild potato Solanum section Petota series Longipedicellata: AFLP, RAPD and chloroplast SSR data. Theor. Appl. Genet. 105:1109-1114.
Adams, J.S. 2002. Banking on Genes: Preserving the traits of today for the potato of tomorrow. Potato Grower (November): 26-28.
Ahn Yul-Kyun, Bo-Sun Kim, Jae-Wook Bang, and Hyo-Guen Park. 2002. Cytogenetic analysis of somatic hybrids between Solanum brevidens and S. tuberosum (Superior, Dejima, and dihaploid of Superior) by GISH. XXVIth International Horticultural Congress, Toronto, ON, Canada, August 11-17, 2002, p. 110. (Abstract)
Audy, Patrice, Richard Tarn, and Agnes Murphy. 2002. Identification of a differential gene expression pattern related to resistance to potato late blight. XXVIth International Horticultural Congress, Toronto, ON, Canada, August 11-17, 2002, pp. 110-111. (Abstract)
Barone, A., J. Li, A. Sebastiano, T. Cardi, and L. Frusciante. 2002. Evidence for tetrasomic inheritance in a tetraploid Solanum commersonii (+) S. tuberosum somatic hybrid through the use of molecular markers. Theor. Appl. Genet. 104(4):539-546.
Ballvora, A., M.R. Ercolano, J. Weiss, K. Meksem, C.A. Bormann, P. Orberhagemann, F. Salamini, and C. Gebhardt. 2002. The R1 gene for potato resistance to late blight (Phytophthora infestans) belongs to the leucine zipper/NBS/LRR class of plant resistance genes. Plant J. 30(3):361-371.
Bisognin, D.A., D.S. Douches, K. Jastrzebski, and W.W. Kirk. 2002. Half-sib progeny evaluation and selection of potatoes resistant to the US8 genotype of Phytophthora infestans from crosses between resistant and susceptible parents. Euphytica 125(1):129-138.
Boluarte-Medina, T. and R.E. Veilleux. 2002. Phenotypic characterization and bulk segregant analysis of anther culture response in two backcross families of diploid potato. RAPD markers for androgenesis in potato. Plant Cell, Tissue and Organ Culture 68(3):277-286.
Boluarte-Medina, T., E. Fogelman, E. Chani, A.R. Miller, I. Levin, D. Levy, and R.E. Veilleux. 2002. Identification of molecular markers associated with leptine in reciprocal backcross families of diploid potato. Theor. Appl. Genet. 105:1010-1018.
Bonierbale, M., J. Landeo, and M. Ghislain. 2002. Targeted breeding for sustainable production in a global potato improvement. XXVIth International Horticultural Congress, Toronto, ON, Canada, August 11-17, 2002, p. 110. (Abstract)
Bradeen, J.M., S.K. Naess, J. Song, S.M. Wielgus, and G.T. Haberlach. 2002. Analysis of 300kb of genomic sequence associated with late blight resistance of potato. XXVIth International Horticultural Congress, Toronto, ON, Canada, August 11-17, 2002, p. 117. (Abstract)
Brown, C.R., H. Mojtahedi, and G.S. Santo. 2002. Characteristics of resistance to Columbia root-knot nematode introgressed from several Mexican and North American wild potato species. XXVIth International Horticultural Congress, Toronto, ON, Canada, August 11-17, 2002, p. 116. (Abstract)
Bryan, G.J., K. McLean, J.E. Bradshaw, W.S. de Jong, M. Phillips, L. Castelli, and R. Waugh. 2002. Mapping QTLs for resistance to the cyst nematode Globodera pallida derived from the wild potato species Solanum vernei. Theor. Appl. Genet. 105(1):68-77.
Bu QingYun, Lu WenHe, Chen YiLi, Tian XingYa, Wang FengYi, and Qin Xin. 2002. Evaluation of some newly developed diploid hybrids and their breeding value in 4x-2x crosses. J. NE Ag. Univ. (English Edition) 9(1):35-41.
Capo, A., M. Cammareri, F. Della Rocca, A. Errico, A. Zoina, and C. Conicella. 2002. Evaluation for chipping and tuber soft rot (Erwinia carotovora) resistance in potato clones from unilateral sexual polyploidization (2x x 4x). Am. J. Potato Res. 79:139-145.
Cardi, T., M. Mazzei, and L. Frusciante. 2002. Field variation in a tetraploid progeny derived by selfing a Solanum commersonii (+) S. tuberosum somatic hybrid: a multivariate analysis. Euphytica 124(1):111-119.
Carputo, D., L. Frusciante, L. Monti, M. Parisi, and A. Barone. 2002. Tuber quality and soft rot resistance of hybrids between Solanum tuberosum and the incongruent wild relative S. commersonii. Am. J. Potato Res. 79:345-352.
Chani, E., V. Ashkenazi, J. Hillel, and R.E. Veilleux. 2002. Microsatellite marker analysis of an anther-derived potato family: skewed segregation and gene-centromere mapping. Genome 45:236-242.
Christ, B.J., K.G. Haynes, and B.T. Vinyard. 2002. Inheritance of early blight resistance from open-pollinated 4x-2x potato hybrids. Am. J. Potato Res. 79:403-410.
Coffin, R.H., J. Coffin, R. Singh, X. Nie, and R.Y. Yada. 2002. Potato breeding at the cross roads options to consider. XXVIth International Horticultural Congress, Toronto, ON, Canada, August 11-17, 2002, pp. 115-116. (Abstract)
Cook, R. and G.R. Noel. 2002. Cyst nematodes: Globodera and Heterodera species. In: Plant resistance to parasitic nematodes [J.L. Starr, R. Cook, and J. Bridge, Eds.]. CABI Publishing 71-105.
Coombs, J.J., D.S. Douches, Li Wenbin, E.J. Grafius, and W.L. Pett. 2002. Combining engineered (Bt-cry3A) and natural resistance mechanisms in potato for control of Colorado potato beetle. J. Am. Soc. Hort. Sci. 127(1):62-68.
Costanzo, S., B.J. Christ, and K.G. Haynes. 2002. Construction of a molecular linkage map of diploid potato hybrid (Solanum phureja x S. stenotomum) for identification of QTLs involved in late blight resistance. Presented at 86th Annual PAA Meeting, XXVIth International Horticultural Congress, Toronto, ON, Canada, August 11-17, 2002. (Abstract)
Culley, D.E., B.B. Dean, and C.R. Brown. 2002. Introgression of the low browning trait from the wild Mexican species Solanum hjertingii into cultivated potato (S. tuberosum L.). Euphytica 125(3):293-303.
Davies, C.S., M.J. Ottman, and S.J. Peloquin. 2002. Can germplasm resources be used to increase the ascorbic acid content of stored potatoes? Am. J. Potato Res. 79:295-299.
DeJong, W., N. Eannetta, D. DeJong, M. Bodis, and Chun Suk Jung. 2002. Candidate gene analysis of loci controlling natural variation for potato skin color. XXVIth International Horticultural Congress, Toronto, ON, Canada, August 11-17, 2002, p. 111. (Abstract)
Dinu, I.I. and C.A. Thill. 2002. Cytological analysis of a S. pinnatisectum S. tuberosum bridging genotype developed by EBN manipulation and sexual crosses. Presented at 86th Annual PAA Meeting, XXVIth International Horticultural Congress, Toronto, ON, Canada, August 11-17, 2002. Am. J. Potato Res.: In Press. (Abstract)
Douches, D., K. Felcher, J. Coombs, and W. Kirk. 2002. Field evaluation of foliar resistance to Phytophthora infestans in potato. XXVIth International Horticultural Congress, Toronto, ON, Canada, August 11-17, 2002, p. 117. (Abstract)
Fisher, D.G., K.L. Deahl, and M.V. Rainforth. 2002. Horizontal resistance in Solanum tuberosum to Colorado potato beetle (Leptinotarsa decemlineata Say). Am. J. Potato Res. 79:281-293.
Gauer, P.C., J. Gopal, S.K. Pandey, and M.S. Rana. 2002. EX/A680-16 (reg. No. INGR 01011) potato. Indian J. Genet. Pl. Breed. 62(1):94.
Golmirzaie, A. and R. Ortiz. 2002. Inbreeding and true seed in tetrasomic potato. III. Early selection for seedling vigor in open-pollinated populations. Theor. Appl. Genet. 104(1):157-160.
Groza, H.I., B.D. Bowen, D. Kichefski, S.J. Peloquin, and J. Jiang. 2002. Red Companion: A new red potato variety for fresh market. Am. J. Potato Res. 79:133-137.
Grunwald, N.J., M.A. Cadena Hinojosa, O. Rubio Covarrubias, A. Rivera Pena, J.S. Niederhauser, and W.E. Fry. 2002. Potato cultivars from the Mexican National Program: sources and durability of resistance against late blight. Phytopathology 92(7):688-693.
Hayes, R.J. and C.A. Thill. 2002. Co-current introgression of economically important traits in a potato-breeding program. Am. J. Potato Res. 79:173-181.
Hayes, R.J. and C.A. Thill. 2002. Introgression of cold (4 C) chipping from 2x (2 Endosperm Balance Number) potato species into 4x (4EBN) cultivated potato using sexual polyploidization. Am. J. Potato Res. 79:421-431.
Hayes, R.J. and C.A. Thill. 2002. Selection for cold chipping genotypes from three early generations in a potato breeding program. Euphytica 128:353-362.
Hayes, R.J. and C.A. Thill. 2002. Selection for potato genotypes from diverse progenies that combine 4 C chipping with acceptable yields, specific gravity and tuber appearance. Crop Sci. 42:1343-1349.
Hayes, R.J. and C.A. Thill. 2002. Early generation selection to rapidly develop cold chipping germplasm. Presented at 86th Annual PAA Meeting, XXVIth International Horticultural Congress, Toronto, ON, Canada, August 11-17, 2002, p. 121. (Abstract)
Haynes, K.G., B.J. Christ, P.D. Weingartner, D.S. Douches, C.A. Thill, G. Secor, W.E. Fry, and D.H. Lambert. 2002. Foliar resistance to late blight in potato clones evaluated in national trials in 1997. Am. J. Potato Res. 79:451-457.
Helgeson, J.P. and G.T. Haberlach. 2002. Useful lessons learned from somatic hybrids. XXVIth International Horticultural Congress, Toronto, ON, Canada, August 11-17, 2002, p. 122. (Abstract)
Hosaka, Kazuyoshi. 2002. Distribution of the 241 bp deletion of chloroplast DNA in wild potato species. Am. J. Potato Res. 79-119-123.
Jansky, S.H. and D.I. Rouse. 2002. Variability for disease resistance in populations of potato haploids. XXVIth International Horticultural Congress, Toronto, ON, Canada, August 11-17, 2002, p. 118. (Abstract)
Kimura, T. and K. Hosaka. 2002. Genetic mapping of a dwarfing gene found in Solanum phureja clone 1.22. Am. J. Potato Res. 79:201-204.
Kuhl, J.C., M.J. Havey, and R.E. Hanneman, Jr. 2002. A genetic study of unilateral incompatibility between diploid (1EBN) Mexican species Solanum pinnatisectum and S. cardiophyllum subsp. cardiophyllum. Sexual Plant Reproduction 14(6):305-313.
Liedberg, J. and J. Lorenzen. 2002. Resistance to PLRV and PVY in progeny of S. tuberosum fusions. XXVIth International Horticultural Congress, Toronto, ON, Canada, August 11-17, 2002, p. 118. (Abstract)
Lightbourn, G. and R.E. Veilleux. 2002. Retrotransposon based markers to characterize somatic hybrids and assess variation induced by protoplast fusion of monoploid potato. XXVIth International Horticultural Congress, Toronto, ON, Canada, August 11-17, 2002, p. 112. (Abstract)
Lim, Hak-Tae, Kuihua Li, and Yilan Fang. 2002. Development of potato varieties as healthy foods with high biological function. XXVIth International Horticultural Congress, Toronto, ON, Canada, August 11-17, 2002, pp. 133-134. (Abstract)
Love, S.L., R. Novy, D.L. Corsini, J.J. Pavek, A.R. Mosley, R.E. Thornton, S.R. James, and D.C. Hane. 2002. Gem Russet: A long russet potato variety with excellent fresh market and french fry processing quality. Am. J. Potato Res. 79:25-31.
Love, S.L., D.L. Corsini, R. Novy, J.J. Pavek, A.R. Mosley, R.E. Thornton, S.R. James, D.C. Hane, and K.A. Rykbost. 2002. IdaRose: A potato variety with bright red skin, excellent culinary quality, and long tuber dormancy. Am. J. Potato Res. 79:79-84.
Love, S.L., T. Salaiz, B. Shafii, W.J. Price, A.R. Mosley, and R.E. Thornton. 2002. Ascorbic acid content and stability in North American potato germplasm. XXVIth International Horticultural Congress, Toronto, ON, Canada, August 11-17, 2002, p. 115. (Abstract)
Lu, W., K. Haynes, E. Wiley, and B. Clevidence. 2002. Carotenoid contents in leaves and tubers of yellow-fleshed diploid potatoes. XXVIth International Horticultural Congress, Toronto, ON, Canada, August 11-17, 2002, p. 112. (Abstract)
Markarov, A.M. 2002. Causes of flowering of long-day potato species under short-day and cold-night conditions. Russian J. Plant Phys. 49(4):465-469.
McCue, K.F., D.L. Corsini, L.V.T. Shepherd, C.P. Moehs, P. Joyce, H. Davies, and W.R. Belknap. 2002. Reduction of total steroidal glycoalkaloids in potato tubers using antisense constructs of a gene encoding a solanidine glucosyl transferase. XXVIth International Horticultural Congress, Toronto, ON, Canada, August 11-17, 2002, p. 115. (Abstract)
McGrath, J.M., C.E. Williams, G.T. Haberlach, S.M. Wielgus, T.F. Uchytil, and J.P. Helgeson. 2002. Introgression and stabilization of Erwinia soft rot resistance into potato after somatic hybridization of Solanum tuberosum and S. brevidens. Am. J. Potato Res. 79:19-24.
McGregor, C.E., R. van Treuren, R. Hoekstra, and T.J.L. van Hintum. 2002. Analysis of the wild potato germplasm of the series Acaulia with AFLPs: implications for ex situ conservation. Theor. Appl. Genet. 104(1):146-156.
Miller, A.R., J.C. Jang, and N.J. Flickinger. 2002. The effect of commercial brassinosteroid on growth and steroidal glycoalkaloid content of cultivated potato (Solanum tuberosum) and S. chacoense grown in vitro. XXVIth International Horticultural Congress, Toronto, ON, Canada, August 11-17, 2002, p. 127. (Abstract)
Mollov, D.S. and C.A. Thill. 2002. Identifying PVY asymptomatic clones in 4x and 2x breeding populations. Presented at 86th Annual PAA Meeting, XXVIth International Horticultural Congress, Toronto, ON, Canada August 11-17, 2002, p 119. (Abstract)
Murphy, A., R. Tarn, H. DeJong, W. Arsenault, and G.C.C. Tai. 2002. AC Sunbury: A new light yellow-fleshed medium early table potato cultivar with resistance to golden cyst nematode. Am. J. Potato Res. 79:397-402.
Nakagawa, K. and K. Hosaka. 2002. Species relationships between a wild tetraploid potato species, Solanum acaule Bitter, and its related species as revealed by RFLPs of chloroplast and nuclear DNA. Am. J. Potato Res. 79:85-98.
Novy, R.G., D.L. Corsini, S.L. Love, J.J. Pavek, A.R. Mosley, S.R. James, D.C. Hane, C.C. Shock, K.A. Rykbost, C.R. Brown, and R.E. Thornton. 2002. Bannock Russet: A dual-purpose, russet potato cultivar with high U.S. No. 1 yield and multiple disease resistances. Am. J. Potato Res. 79:147-153.
Novy, R.G., A. Nasruddin, D.W. Ragsdale, and E.B. Radcliffe. 2002. Genetic resistances to potato leafroll virus, potato virus Y, and green peach aphid in progeny of S. etuberosum. 15th Triennial Conference of the European Association for Potato Research-Abstracts of Papers and Posters. Supplement 1:82 (Abstract).
Novy, R.G., A. Nasruddin, D.W. Ragsdale, and E.B. Radcliffe. 2002. Genetic resistances to potato leafroll virus (PLRV), potato virus Y (PVY), and green peach aphid (Myzus persicae) in progeny of Solanum etuberosum. Am. J. Potato Res. 79:9-18.
OBrien, M., C. Bertrand, and D.P. Matton. 2002. Characterization of a fertilization-induced and developmentally regulated plasma-membrane aquaporin expressed in reproductive tissues, in the wild potato Solanum chacoense Bitt. Planta 215(3):485-493.
Oltmans, S.M. and R.G. Novy. 2002. Identification of potato (Solanum tuberosum L.) haploid x wild species hybrids with the capacity to cold-chip. Am. J. Potato Res. 79:263-268.
Park, Young Eun, Hyun Mook Cho, Kwan Soo Kim, and Hak Tae Lim. 2002. Development of useful breeding resources in several wild species of potatoes based on the analysis of specific gravity and reducing sugar content. XXVIth International Horticultural Congress, Toronto, ON, Canada, August 11-17, 2002, pp. 112-113. (Abstract)
Park, Young Eun, Hyun Mook Cho, Kwan Soo Kim, Jung Yool Yi, and Hak Tae Lim. 2002. Evaluation on specific gravity and glucose content of potato germplasms. XXVIth International Horticultural Congress, Toronto, ON, Canada, August 11-17, 2002, p. 113. (Abstract)
Pelletier, Y. 2002. Colorado potato beetle resistance to insecticides. Potato Conference and Trade Show, Perth-Andover, New Brunswick, Canada, February 6-7.
Pelletier, Y. and C.L. Clark. 2002. Use of reciprocal grafting to elucidate the mode of resistance of wild Solanum species to the Colorado potato beetle and the potato aphid. Annual meeting of the Entomological Society of Canada, Winnipeg, Manitoba, Canada, Nov 5-9. (Poster)
Pelletier, Y. and J. Dutheil. 2002. Study of the mechanism of resistance of Solanum tarijense to the Colorado Potato Beetle, Leptinotarsa decemlineata (Say). North East Potato Technology Forum, Fredericton, New Brunswick, Canada, March 11-22.
Pelletier, Y., Magali Breton and Florent Courtin. 2002. Sampling methods and resistance of wild Solanum species to the potato flea beetle. North East Potato Technology Forum, Fredericton, New Brunswick, Canada, March 11-22.
Pelletier, Y., C.L. Clark, J. Embleton, and R.R. King. 2002. The chemical nature of the resistance to the Colorado potato beetle of wild potato species. International Plant Resistance to Insects Workshop, Baltimore, MD, February 24-27.
Radcliffe, E.B. and D.W. Ragsdale. 2002. Aphid-transmitted potato viruses: the importance of understanding vector biology. Am. J. Potato Res. 79:353-386.
Rivera-Pena, A., M. Cadena-Hinojosa, and H. Almeyda-Leon. 2002. Purple Top: A serious threat on the potato production in Mexico. XXVIth International Horticultural Congress, Toronto, ON, Canada, August 11-17, 2002, pp. 119-120. (Abstract)
Saha, M.C. and J.H. Lorenzen. 2002. Molecular mapping of resistance to late blight and cold sweetening in diploid potatoes. XXVIth International Horticultural Congress, Toronto, ON, Canada, August 11-17, 2002, p. 113. (Abstract)
Samitsu, Y. and K. Hosaka. 2002. Molecular marker analysis of 24- and 25-chromosome plants obtained from Solanum tuberosum L. subsp. andigena (2n=4x=48) pollinated with a Solanum phureja haploid inducer. Genome 45(3):577-583.
Sandgren, M., R.L. Plaisted, K.N. Watanabe, S. Olsson, and J.P.T. Valkonen. 2002. Evaluation of some North and South American potato breeding lines for resistance to Potato mop-top virus in Sweden. Am. J. Potato Res. 79:205-210.
Simko, Ivan. 2002. Comparative analysis of quantitative trait loci for foliage resistance to Phytophthora infestans in tuber-bearing Solanum species. Am. J. Potato Res. 79:125-132.
Smith, S.D. and I.E. Peralta. 2002. Ecogeographic surveys as tools for analyzing potential reproductive isolating mechanisms: an example using Solanum juglandifolium Dunal, S. ochranthum Dunal, S. lycopersicoides Dunal, and S. sitiens I. M. Johnston. Taxon. 51(2):341-349.
Sowokinos, J.R., S.K. Gupta, and C.A. Thill. 2002. Characterization and distribution of unique isozymes of UDP-Glc pyrophosphorylase (UGPase) in potato clones that resist sweetening when subjected to cold stress. XV Triennial Conference of the European Association for Potato Research. Hamburg, Germany, EAPR:160.
Stupar, R.M., J. Song, A.L. Tek, Z.K. Cheng, F. Dong, and J. Jiang. 2002. Highly condensed potato pericentromeric heterochromatin contains rDNA-related tandem repeats. Genetics 162:1435-1444.
Tarn, T.R., A.M. Murphy, K.G. Proudfoot, D.H. Wilson, and V.J. Burns. 2002. Multiple resistance to diseases in an elite population of long-day adapted Andigena potatoes. XXVIth International Horticultural Congress, Toronto, ON, Canada, August 11-17, 2002, p. 122. (Abstract)
Thill, C.A. and R.J. Hayes. 2002. Comparison of selection methods for 4C chipping genotypes in early breeding generations. XV Triennial Conference of the European Association for Potato Research. Hamburg, Germany, EAPR:299.
Thill, C.A., D.S. Mollov, E.B. Radcliffe, and D.W. Ragsdale. 2002. The identification of resistance to PLRV and PVY in progenies of 5-species interspecific potato hybrids. XV Triennial Conference of the European Association for Potato Research. Hamburg, Germany, EAPR:300.
Thill, C.A. and J.R. Sowokinos. 2002. Segregation of isozymes of UGPase and relationship to cold sweetening resistance in 2x and 4x potato progenies. XV Triennial Conference of the European Association for Potato Research. Hamburg, Germany, EAPR:59.
Thill, C.A., J.R. Sowokinos, and R.J. Hayes. 2002. Variation for isozymes of UGPase in 4x potatoes and its relationship to cold sweetening resistance in 4x progenies from bilateral polyploidization. XXVIth International Horticultural Congress, Toronto, ON, Canada, August 11-17, 2002, p. 115. (Abstract)
Thill, C.A. and D.C. Zlesak. 2002. Phytophthora infestans (US-8, A2) resistance in 1,2 and 4EBN Solanum germplasm and gene introgression into adapted 4x S. tuberosum germplasm. XV Triennial Conference of the European Association for Potato Research. Hamburg, Germany, EAPR:117.
Tinjaca, Sonia, N. Estrada and C.E. Nustez. 2002. Evaluacion de la resistencia a Phytophthora infestans y otros caracteres agronomicos en clones interspecificos provenientes de S. avilesii, S. iopetalum, S. stoloniferum y S. tarijense X especies diploids cultivadas de papa. XXI Reunion de la asociacion Latino Americana de Papa (ALAP). Quito, Ecuador, Junio 2-7, 2002.
Tinjaca, Sonia, N. Estrada and C.E. Nustez. 2002. Evaluacion de progenies derivadas de cruzamientos entre S. infundibuliforme y especies diploids cultivadas de papa. XXI Reunion de la asociacion Latino Americana de Papa (ALAP). Quito, Ecuador, Junio 2-7, 2002.
Trognitz, F., P. Manosalva, R. Gysin, D. Nino-Liu, R. Simon, M. del R. Herrera, B. Trognitz, M. Ghislain, and R. Nelson. 2002. Plant defense genes associated with quantitative resistance to potato late blight in Solanum phureja x Dihaploid S. tuberosum hybrids. Molecular Plant-Microbe Interactions 15(6):587-597.
Turner, S.J. and C.C. Fleming. 2002. Multiple selection of potato cyst nematode Globodera pallida virulence on a range of potato species. I. Serial selection on
Solanum-hybrids. European J. Plant Path. 108(5):461-467.
Wang-Pruski, G., 2002. Genetic and environmental interactions affecting potato after-cooking darkening. XXVIth International Horticultural Congress, Toronto, ON, Canada, August 11-17, 2002, pp. 113-114. (Abstract)
Wulff, E., E. Gonzales-Vigil, J.A. Ortega, S. Munive, E. Mihovilovich, W. Perez, and M. Bonierbale. 2002. Comparative analysis of new sources of late blight resistance using phenotypic and molecular genetic approaches. XXVIth International Horticultural Congress, Toronto, ON, Canada, August 11-17, 2002, p. 110. (Abstract)
Zhang, R., B.J. Christ, and K.G. Haynes. 2002. Mapping early blight resistance in a diploid hybrid potato population of Solanum phureja x S. stenotomum. Presented at 86th Annual PAA Meeting, XXVIth International Horticultural Congress, Toronto, ON, Canada, August 11-17, 2002, p 111. (Abstract)
Zlesak, D.C. and C.A. Thill. 2002. Variation for 2n pollen production and male fertility in wild Solanum germplasm resistant to Phytophthora infestans (Mont.) de Bary (US-8). Am. J. Potato Res. 79:219-229.
Posch, D.M. 2002. Breeding for Phytophthora infestans resistance by selecting progenies in the first clonal generation of potato breeding. M.S. Thesis, University of Minnesota.
Hayes, R.J. 2002. Breeding for cold chipping potato cultivars through sexual polyploidization and early generation selection. Ph.D. Dissertation, University of Minnesota, pp. 173.
Varrieur, J.M. 2002. AFLP marker analysis of monoploid potato. M.S. Thesis, Virginia Polytechnic Institute & State University, Blacksburg.
Additional publications prior to 2002 which reported the use of NRSP-6 Solanum introductions this year were reported on the full committee copy of the annual report.
Hijmans, R.J., D.M. Spooner, A.R. Salas, A. Guarino, and J. de la Cruz. 2002. Atlas of wild potatoes. Systematic and Ecogeographic Studies on Crop Genepools, International Plant Genetic Resources Institute, Rome 10:i-ix, 1-129.
Huaman, Z. and D.M. Spooner. 2002. Reclassification of landrace populations of cultivated potatoes (Solanum sect. Petota). Am. J. Bot. 89:947-965.
Raker, C. and D.M. Spooner. 2002. The Chilean tetraploid cultivated potato, Solanum tuberosum, is distinct from the Andean populations; microsatellite data. Crop Sci. 42:1451-1458.
Rodriguez, A. and D.M. Spooner. 2002. Subspecies boundaries of the wild potatoes Solanum bulbocastanum and S. cardiophyllum based on morphological and nuclear RFLP data. Acta Mexicana 61:9-25.
Spooner, D.M. 2002. Strengths and weaknesses of molecular markers for studies of diversity in genebank holdings. In: Proceedings of the International Workshop on: Aplicaciones de los marcadores moleculares en la conservacion y manejo de la agrobiodiversidad, International Potato Center, CIP, Lima, Peru.
Spooner, D.M., R.G. van den Berg, G. Bryan, and A. del Rio. 2002. Reduction of species in the wild potato Solanum section Petota series Longipedicellata: AFLP, RAPD and chloroplast SSR data. XXVIth International Horticultural Congress, Toronto, ON, Canada, August 11-17, 2002, pp. 114-115. (Abstract)
van den Berg, R.G., G. Bryan, A. del Rio, and D.M. Spooner. 2002. Reduction of species in the wild potato Solanum section Petota series Longipedicellata: AFLP, RAPD and chloroplast SSR data. Theor. Appl. Genet. 105:1109-1114.
Adams, J.S. 2002. Banking on Genes: Preserving the traits of today for the potato of tomorrow. Potato Grower (November): 26-28.
Ahn Yul-Kyun, Bo-Sun Kim, Jae-Wook Bang, and Hyo-Guen Park. 2002. Cytogenetic analysis of somatic hybrids between Solanum brevidens and S. tuberosum (Superior, Dejima, and dihaploid of Superior) by GISH. XXVIth International Horticultural Congress, Toronto, ON, Canada, August 11-17, 2002, p. 110. (Abstract)
Audy, Patrice, Richard Tarn, and Agnes Murphy. 2002. Identification of a differential gene expression pattern related to resistance to potato late blight. XXVIth International Horticultural Congress, Toronto, ON, Canada, August 11-17, 2002, pp. 110-111. (Abstract)
Barone, A., J. Li, A. Sebastiano, T. Cardi, and L. Frusciante. 2002. Evidence for tetrasomic inheritance in a tetraploid Solanum commersonii (+) S. tuberosum somatic hybrid through the use of molecular markers. Theor. Appl. Genet. 104(4):539-546.
Ballvora, A., M.R. Ercolano, J. Weiss, K. Meksem, C.A. Bormann, P. Orberhagemann, F. Salamini, and C. Gebhardt. 2002. The R1 gene for potato resistance to late blight (Phytophthora infestans) belongs to the leucine zipper/NBS/LRR class of plant resistance genes. Plant J. 30(3):361-371.
Bisognin, D.A., D.S. Douches, K. Jastrzebski, and W.W. Kirk. 2002. Half-sib progeny evaluation and selection of potatoes resistant to the US8 genotype of Phytophthora infestans from crosses between resistant and susceptible parents. Euphytica 125(1):129-138.
Boluarte-Medina, T. and R.E. Veilleux. 2002. Phenotypic characterization and bulk segregant analysis of anther culture response in two backcross families of diploid potato. RAPD markers for androgenesis in potato. Plant Cell, Tissue and Organ Culture 68(3):277-286.
Boluarte-Medina, T., E. Fogelman, E. Chani, A.R. Miller, I. Levin, D. Levy, and R.E. Veilleux. 2002. Identification of molecular markers associated with leptine in reciprocal backcross families of diploid potato. Theor. Appl. Genet. 105:1010-1018.
Bonierbale, M., J. Landeo, and M. Ghislain. 2002. Targeted breeding for sustainable production in a global potato improvement. XXVIth International Horticultural Congress, Toronto, ON, Canada, August 11-17, 2002, p. 110. (Abstract)
Bradeen, J.M., S.K. Naess, J. Song, S.M. Wielgus, and G.T. Haberlach. 2002. Analysis of 300kb of genomic sequence associated with late blight resistance of potato. XXVIth International Horticultural Congress, Toronto, ON, Canada, August 11-17, 2002, p. 117. (Abstract)
Brown, C.R., H. Mojtahedi, and G.S. Santo. 2002. Characteristics of resistance to Columbia root-knot nematode introgressed from several Mexican and North American wild potato species. XXVIth International Horticultural Congress, Toronto, ON, Canada, August 11-17, 2002, p. 116. (Abstract)
Bryan, G.J., K. McLean, J.E. Bradshaw, W.S. de Jong, M. Phillips, L. Castelli, and R. Waugh. 2002. Mapping QTLs for resistance to the cyst nematode Globodera pallida derived from the wild potato species Solanum vernei. Theor. Appl. Genet. 105(1):68-77.
Bu QingYun, Lu WenHe, Chen YiLi, Tian XingYa, Wang FengYi, and Qin Xin. 2002. Evaluation of some newly developed diploid hybrids and their breeding value in 4x-2x crosses. J. NE Ag. Univ. (English Edition) 9(1):35-41.
Capo, A., M. Cammareri, F. Della Rocca, A. Errico, A. Zoina, and C. Conicella. 2002. Evaluation for chipping and tuber soft rot (Erwinia carotovora) resistance in potato clones from unilateral sexual polyploidization (2x x 4x). Am. J. Potato Res. 79:139-145.
Cardi, T., M. Mazzei, and L. Frusciante. 2002. Field variation in a tetraploid progeny derived by selfing a Solanum commersonii (+) S. tuberosum somatic hybrid: a multivariate analysis. Euphytica 124(1):111-119.
Carputo, D., L. Frusciante, L. Monti, M. Parisi, and A. Barone. 2002. Tuber quality and soft rot resistance of hybrids between Solanum tuberosum and the incongruent wild relative S. commersonii. Am. J. Potato Res. 79:345-352.
Chani, E., V. Ashkenazi, J. Hillel, and R.E. Veilleux. 2002. Microsatellite marker analysis of an anther-derived potato family: skewed segregation and gene-centromere mapping. Genome 45:236-242.
Christ, B.J., K.G. Haynes, and B.T. Vinyard. 2002. Inheritance of early blight resistance from open-pollinated 4x-2x potato hybrids. Am. J. Potato Res. 79:403-410.
Coffin, R.H., J. Coffin, R. Singh, X. Nie, and R.Y. Yada. 2002. Potato breeding at the cross roads options to consider. XXVIth International Horticultural Congress, Toronto, ON, Canada, August 11-17, 2002, pp. 115-116. (Abstract)
Cook, R. and G.R. Noel. 2002. Cyst nematodes: Globodera and Heterodera species. In: Plant resistance to parasitic nematodes [J.L. Starr, R. Cook, and J. Bridge, Eds.]. CABI Publishing 71-105.
Coombs, J.J., D.S. Douches, Li Wenbin, E.J. Grafius, and W.L. Pett. 2002. Combining engineered (Bt-cry3A) and natural resistance mechanisms in potato for control of Colorado potato beetle. J. Am. Soc. Hort. Sci. 127(1):62-68.
Costanzo, S., B.J. Christ, and K.G. Haynes. 2002. Construction of a molecular linkage map of diploid potato hybrid (Solanum phureja x S. stenotomum) for identification of QTLs involved in late blight resistance. Presented at 86th Annual PAA Meeting, XXVIth International Horticultural Congress, Toronto, ON, Canada, August 11-17, 2002. (Abstract)
Culley, D.E., B.B. Dean, and C.R. Brown. 2002. Introgression of the low browning trait from the wild Mexican species Solanum hjertingii into cultivated potato (S. tuberosum L.). Euphytica 125(3):293-303.
Davies, C.S., M.J. Ottman, and S.J. Peloquin. 2002. Can germplasm resources be used to increase the ascorbic acid content of stored potatoes? Am. J. Potato Res. 79:295-299.
DeJong, W., N. Eannetta, D. DeJong, M. Bodis, and Chun Suk Jung. 2002. Candidate gene analysis of loci controlling natural variation for potato skin color. XXVIth International Horticultural Congress, Toronto, ON, Canada, August 11-17, 2002, p. 111. (Abstract)
Dinu, I.I. and C.A. Thill. 2002. Cytological analysis of a S. pinnatisectum S. tuberosum bridging genotype developed by EBN manipulation and sexual crosses. Presented at 86th Annual PAA Meeting, XXVIth International Horticultural Congress, Toronto, ON, Canada, August 11-17, 2002. Am. J. Potato Res.: In Press. (Abstract)
Douches, D., K. Felcher, J. Coombs, and W. Kirk. 2002. Field evaluation of foliar resistance to Phytophthora infestans in potato. XXVIth International Horticultural Congress, Toronto, ON, Canada, August 11-17, 2002, p. 117. (Abstract)
Fisher, D.G., K.L. Deahl, and M.V. Rainforth. 2002. Horizontal resistance in Solanum tuberosum to Colorado potato beetle (Leptinotarsa decemlineata Say). Am. J. Potato Res. 79:281-293.
Gauer, P.C., J. Gopal, S.K. Pandey, and M.S. Rana. 2002. EX/A680-16 (reg. No. INGR 01011) potato. Indian J. Genet. Pl. Breed. 62(1):94.
Golmirzaie, A. and R. Ortiz. 2002. Inbreeding and true seed in tetrasomic potato. III. Early selection for seedling vigor in open-pollinated populations. Theor. Appl. Genet. 104(1):157-160.
Groza, H.I., B.D. Bowen, D. Kichefski, S.J. Peloquin, and J. Jiang. 2002. Red Companion: A new red potato variety for fresh market. Am. J. Potato Res. 79:133-137.
Grunwald, N.J., M.A. Cadena Hinojosa, O. Rubio Covarrubias, A. Rivera Pena, J.S. Niederhauser, and W.E. Fry. 2002. Potato cultivars from the Mexican National Program: sources and durability of resistance against late blight. Phytopathology 92(7):688-693.
Hayes, R.J. and C.A. Thill. 2002. Co-current introgression of economically important traits in a potato-breeding program. Am. J. Potato Res. 79:173-181.
Hayes, R.J. and C.A. Thill. 2002. Introgression of cold (4 C) chipping from 2x (2 Endosperm Balance Number) potato species into 4x (4EBN) cultivated potato using sexual polyploidization. Am. J. Potato Res. 79:421-431.
Hayes, R.J. and C.A. Thill. 2002. Selection for cold chipping genotypes from three early generations in a potato breeding program. Euphytica 128:353-362.
Hayes, R.J. and C.A. Thill. 2002. Selection for potato genotypes from diverse progenies that combine 4 C chipping with acceptable yields, specific gravity and tuber appearance. Crop Sci. 42:1343-1349.
Hayes, R.J. and C.A. Thill. 2002. Early generation selection to rapidly develop cold chipping germplasm. Presented at 86th Annual PAA Meeting, XXVIth International Horticultural Congress, Toronto, ON, Canada, August 11-17, 2002, p. 121. (Abstract)
Haynes, K.G., B.J. Christ, P.D. Weingartner, D.S. Douches, C.A. Thill, G. Secor, W.E. Fry, and D.H. Lambert. 2002. Foliar resistance to late blight in potato clones evaluated in national trials in 1997. Am. J. Potato Res. 79:451-457.
Helgeson, J.P. and G.T. Haberlach. 2002. Useful lessons learned from somatic hybrids. XXVIth International Horticultural Congress, Toronto, ON, Canada, August 11-17, 2002, p. 122. (Abstract)
Hosaka, Kazuyoshi. 2002. Distribution of the 241 bp deletion of chloroplast DNA in wild potato species. Am. J. Potato Res. 79-119-123.
Jansky, S.H. and D.I. Rouse. 2002. Variability for disease resistance in populations of potato haploids. XXVIth International Horticultural Congress, Toronto, ON, Canada, August 11-17, 2002, p. 118. (Abstract)
Kimura, T. and K. Hosaka. 2002. Genetic mapping of a dwarfing gene found in Solanum phureja clone 1.22. Am. J. Potato Res. 79:201-204.
Kuhl, J.C., M.J. Havey, and R.E. Hanneman, Jr. 2002. A genetic study of unilateral incompatibility between diploid (1EBN) Mexican species Solanum pinnatisectum and S. cardiophyllum subsp. cardiophyllum. Sexual Plant Reproduction 14(6):305-313.
Liedberg, J. and J. Lorenzen. 2002. Resistance to PLRV and PVY in progeny of S. tuberosum fusions. XXVIth International Horticultural Congress, Toronto, ON, Canada, August 11-17, 2002, p. 118. (Abstract)
Lightbourn, G. and R.E. Veilleux. 2002. Retrotransposon based markers to characterize somatic hybrids and assess variation induced by protoplast fusion of monoploid potato. XXVIth International Horticultural Congress, Toronto, ON, Canada, August 11-17, 2002, p. 112. (Abstract)
Lim, Hak-Tae, Kuihua Li, and Yilan Fang. 2002. Development of potato varieties as healthy foods with high biological function. XXVIth International Horticultural Congress, Toronto, ON, Canada, August 11-17, 2002, pp. 133-134. (Abstract)
Love, S.L., R. Novy, D.L. Corsini, J.J. Pavek, A.R. Mosley, R.E. Thornton, S.R. James, and D.C. Hane. 2002. Gem Russet: A long russet potato variety with excellent fresh market and french fry processing quality. Am. J. Potato Res. 79:25-31.
Love, S.L., D.L. Corsini, R. Novy, J.J. Pavek, A.R. Mosley, R.E. Thornton, S.R. James, D.C. Hane, and K.A. Rykbost. 2002. IdaRose: A potato variety with bright red skin, excellent culinary quality, and long tuber dormancy. Am. J. Potato Res. 79:79-84.
Love, S.L., T. Salaiz, B. Shafii, W.J. Price, A.R. Mosley, and R.E. Thornton. 2002. Ascorbic acid content and stability in North American potato germplasm. XXVIth International Horticultural Congress, Toronto, ON, Canada, August 11-17, 2002, p. 115. (Abstract)
Lu, W., K. Haynes, E. Wiley, and B. Clevidence. 2002. Carotenoid contents in leaves and tubers of yellow-fleshed diploid potatoes. XXVIth International Horticultural Congress, Toronto, ON, Canada, August 11-17, 2002, p. 112. (Abstract)
Markarov, A.M. 2002. Causes of flowering of long-day potato species under short-day and cold-night conditions. Russian J. Plant Phys. 49(4):465-469.
McCue, K.F., D.L. Corsini, L.V.T. Shepherd, C.P. Moehs, P. Joyce, H. Davies, and W.R. Belknap. 2002. Reduction of total steroidal glycoalkaloids in potato tubers using antisense constructs of a gene encoding a solanidine glucosyl transferase. XXVIth International Horticultural Congress, Toronto, ON, Canada, August 11-17, 2002, p. 115. (Abstract)
McGrath, J.M., C.E. Williams, G.T. Haberlach, S.M. Wielgus, T.F. Uchytil, and J.P. Helgeson. 2002. Introgression and stabilization of Erwinia soft rot resistance into potato after somatic hybridization of Solanum tuberosum and S. brevidens. Am. J. Potato Res. 79:19-24.
McGregor, C.E., R. van Treuren, R. Hoekstra, and T.J.L. van Hintum. 2002. Analysis of the wild potato germplasm of the series Acaulia with AFLPs: implications for ex situ conservation. Theor. Appl. Genet. 104(1):146-156.
Miller, A.R., J.C. Jang, and N.J. Flickinger. 2002. The effect of commercial brassinosteroid on growth and steroidal glycoalkaloid content of cultivated potato (Solanum tuberosum) and S. chacoense grown in vitro. XXVIth International Horticultural Congress, Toronto, ON, Canada, August 11-17, 2002, p. 127. (Abstract)
Mollov, D.S. and C.A. Thill. 2002. Identifying PVY asymptomatic clones in 4x and 2x breeding populations. Presented at 86th Annual PAA Meeting, XXVIth International Horticultural Congress, Toronto, ON, Canada August 11-17, 2002, p 119. (Abstract)
Murphy, A., R. Tarn, H. DeJong, W. Arsenault, and G.C.C. Tai. 2002. AC Sunbury: A new light yellow-fleshed medium early table potato cultivar with resistance to golden cyst nematode. Am. J. Potato Res. 79:397-402.
Nakagawa, K. and K. Hosaka. 2002. Species relationships between a wild tetraploid potato species, Solanum acaule Bitter, and its related species as revealed by RFLPs of chloroplast and nuclear DNA. Am. J. Potato Res. 79:85-98.
Novy, R.G., D.L. Corsini, S.L. Love, J.J. Pavek, A.R. Mosley, S.R. James, D.C. Hane, C.C. Shock, K.A. Rykbost, C.R. Brown, and R.E. Thornton. 2002. Bannock Russet: A dual-purpose, russet potato cultivar with high U.S. No. 1 yield and multiple disease resistances. Am. J. Potato Res. 79:147-153.
Novy, R.G., A. Nasruddin, D.W. Ragsdale, and E.B. Radcliffe. 2002. Genetic resistances to potato leafroll virus, potato virus Y, and green peach aphid in progeny of S. etuberosum. 15th Triennial Conference of the European Association for Potato Research-Abstracts of Papers and Posters. Supplement 1:82 (Abstract).
Novy, R.G., A. Nasruddin, D.W. Ragsdale, and E.B. Radcliffe. 2002. Genetic resistances to potato leafroll virus (PLRV), potato virus Y (PVY), and green peach aphid (Myzus persicae) in progeny of Solanum etuberosum. Am. J. Potato Res. 79:9-18.
OBrien, M., C. Bertrand, and D.P. Matton. 2002. Characterization of a fertilization-induced and developmentally regulated plasma-membrane aquaporin expressed in reproductive tissues, in the wild potato Solanum chacoense Bitt. Planta 215(3):485-493.
Oltmans, S.M. and R.G. Novy. 2002. Identification of potato (Solanum tuberosum L.) haploid x wild species hybrids with the capacity to cold-chip. Am. J. Potato Res. 79:263-268.
Park, Young Eun, Hyun Mook Cho, Kwan Soo Kim, and Hak Tae Lim. 2002. Development of useful breeding resources in several wild species of potatoes based on the analysis of specific gravity and reducing sugar content. XXVIth International Horticultural Congress, Toronto, ON, Canada, August 11-17, 2002, pp. 112-113. (Abstract)
Park, Young Eun, Hyun Mook Cho, Kwan Soo Kim, Jung Yool Yi, and Hak Tae Lim. 2002. Evaluation on specific gravity and glucose content of potato germplasms. XXVIth International Horticultural Congress, Toronto, ON, Canada, August 11-17, 2002, p. 113. (Abstract)
Pelletier, Y. 2002. Colorado potato beetle resistance to insecticides. Potato Conference and Trade Show, Perth-Andover, New Brunswick, Canada, February 6-7.
Pelletier, Y. and C.L. Clark. 2002. Use of reciprocal grafting to elucidate the mode of resistance of wild Solanum species to the Colorado potato beetle and the potato aphid. Annual meeting of the Entomological Society of Canada, Winnipeg, Manitoba, Canada, Nov 5-9. (Poster)
Pelletier, Y. and J. Dutheil. 2002. Study of the mechanism of resistance of Solanum tarijense to the Colorado Potato Beetle, Leptinotarsa decemlineata (Say). North East Potato Technology Forum, Fredericton, New Brunswick, Canada, March 11-22.
Pelletier, Y., Magali Breton and Florent Courtin. 2002. Sampling methods and resistance of wild Solanum species to the potato flea beetle. North East Potato Technology Forum, Fredericton, New Brunswick, Canada, March 11-22.
Pelletier, Y., C.L. Clark, J. Embleton, and R.R. King. 2002. The chemical nature of the resistance to the Colorado potato beetle of wild potato species. International Plant Resistance to Insects Workshop, Baltimore, MD, February 24-27.
Radcliffe, E.B. and D.W. Ragsdale. 2002. Aphid-transmitted potato viruses: the importance of understanding vector biology. Am. J. Potato Res. 79:353-386.
Rivera-Pena, A., M. Cadena-Hinojosa, and H. Almeyda-Leon. 2002. Purple Top: A serious threat on the potato production in Mexico. XXVIth International Horticultural Congress, Toronto, ON, Canada, August 11-17, 2002, pp. 119-120. (Abstract)
Saha, M.C. and J.H. Lorenzen. 2002. Molecular mapping of resistance to late blight and cold sweetening in diploid potatoes. XXVIth International Horticultural Congress, Toronto, ON, Canada, August 11-17, 2002, p. 113. (Abstract)
Samitsu, Y. and K. Hosaka. 2002. Molecular marker analysis of 24- and 25-chromosome plants obtained from Solanum tuberosum L. subsp. andigena (2n=4x=48) pollinated with a Solanum phureja haploid inducer. Genome 45(3):577-583.
Sandgren, M., R.L. Plaisted, K.N. Watanabe, S. Olsson, and J.P.T. Valkonen. 2002. Evaluation of some North and South American potato breeding lines for resistance to Potato mop-top virus in Sweden. Am. J. Potato Res. 79:205-210.
Simko, Ivan. 2002. Comparative analysis of quantitative trait loci for foliage resistance to Phytophthora infestans in tuber-bearing Solanum species. Am. J. Potato Res. 79:125-132.
Smith, S.D. and I.E. Peralta. 2002. Ecogeographic surveys as tools for analyzing potential reproductive isolating mechanisms: an example using Solanum juglandifolium Dunal, S. ochranthum Dunal, S. lycopersicoides Dunal, and S. sitiens I. M. Johnston. Taxon. 51(2):341-349.
Sowokinos, J.R., S.K. Gupta, and C.A. Thill. 2002. Characterization and distribution of unique isozymes of UDP-Glc pyrophosphorylase (UGPase) in potato clones that resist sweetening when subjected to cold stress. XV Triennial Conference of the European Association for Potato Research. Hamburg, Germany, EAPR:160.
Stupar, R.M., J. Song, A.L. Tek, Z.K. Cheng, F. Dong, and J. Jiang. 2002. Highly condensed potato pericentromeric heterochromatin contains rDNA-related tandem repeats. Genetics 162:1435-1444.
Tarn, T.R., A.M. Murphy, K.G. Proudfoot, D.H. Wilson, and V.J. Burns. 2002. Multiple resistance to diseases in an elite population of long-day adapted Andigena potatoes. XXVIth International Horticultural Congress, Toronto, ON, Canada, August 11-17, 2002, p. 122. (Abstract)
Thill, C.A. and R.J. Hayes. 2002. Comparison of selection methods for 4C chipping genotypes in early breeding generations. XV Triennial Conference of the European Association for Potato Research. Hamburg, Germany, EAPR:299.
Thill, C.A., D.S. Mollov, E.B. Radcliffe, and D.W. Ragsdale. 2002. The identification of resistance to PLRV and PVY in progenies of 5-species interspecific potato hybrids. XV Triennial Conference of the European Association for Potato Research. Hamburg, Germany, EAPR:300.
Thill, C.A. and J.R. Sowokinos. 2002. Segregation of isozymes of UGPase and relationship to cold sweetening resistance in 2x and 4x potato progenies. XV Triennial Conference of the European Association for Potato Research. Hamburg, Germany, EAPR:59.
Thill, C.A., J.R. Sowokinos, and R.J. Hayes. 2002. Variation for isozymes of UGPase in 4x potatoes and its relationship to cold sweetening resistance in 4x progenies from bilateral polyploidization. XXVIth International Horticultural Congress, Toronto, ON, Canada, August 11-17, 2002, p. 115. (Abstract)
Thill, C.A. and D.C. Zlesak. 2002. Phytophthora infestans (US-8, A2) resistance in 1,2 and 4EBN Solanum germplasm and gene introgression into adapted 4x S. tuberosum germplasm. XV Triennial Conference of the European Association for Potato Research. Hamburg, Germany, EAPR:117.
Tinjaca, Sonia, N. Estrada and C.E. Nustez. 2002. Evaluacion de la resistencia a Phytophthora infestans y otros caracteres agronomicos en clones interspecificos provenientes de S. avilesii, S. iopetalum, S. stoloniferum y S. tarijense X especies diploids cultivadas de papa. XXI Reunion de la asociacion Latino Americana de Papa (ALAP). Quito, Ecuador, Junio 2-7, 2002.
Tinjaca, Sonia, N. Estrada and C.E. Nustez. 2002. Evaluacion de progenies derivadas de cruzamientos entre S. infundibuliforme y especies diploids cultivadas de papa. XXI Reunion de la asociacion Latino Americana de Papa (ALAP). Quito, Ecuador, Junio 2-7, 2002.
Trognitz, F., P. Manosalva, R. Gysin, D. Nino-Liu, R. Simon, M. del R. Herrera, B. Trognitz, M. Ghislain, and R. Nelson. 2002. Plant defense genes associated with quantitative resistance to potato late blight in Solanum phureja x Dihaploid S. tuberosum hybrids. Molecular Plant-Microbe Interactions 15(6):587-597.
Turner, S.J. and C.C. Fleming. 2002. Multiple selection of potato cyst nematode Globodera pallida virulence on a range of potato species. I. Serial selection on
Solanum-hybrids. European J. Plant Path. 108(5):461-467.
Wang-Pruski, G., 2002. Genetic and environmental interactions affecting potato after-cooking darkening. XXVIth International Horticultural Congress, Toronto, ON, Canada, August 11-17, 2002, pp. 113-114. (Abstract)
Wulff, E., E. Gonzales-Vigil, J.A. Ortega, S. Munive, E. Mihovilovich, W. Perez, and M. Bonierbale. 2002. Comparative analysis of new sources of late blight resistance using phenotypic and molecular genetic approaches. XXVIth International Horticultural Congress, Toronto, ON, Canada, August 11-17, 2002, p. 110. (Abstract)
Zhang, R., B.J. Christ, and K.G. Haynes. 2002. Mapping early blight resistance in a diploid hybrid potato population of Solanum phureja x S. stenotomum. Presented at 86th Annual PAA Meeting, XXVIth International Horticultural Congress, Toronto, ON, Canada, August 11-17, 2002, p 111. (Abstract)
Zlesak, D.C. and C.A. Thill. 2002. Variation for 2n pollen production and male fertility in wild Solanum germplasm resistant to Phytophthora infestans (Mont.) de Bary (US-8). Am. J. Potato Res. 79:219-229.
Posch, D.M. 2002. Breeding for Phytophthora infestans resistance by selecting progenies in the first clonal generation of potato breeding. M.S. Thesis, University of Minnesota.
Hayes, R.J. 2002. Breeding for cold chipping potato cultivars through sexual polyploidization and early generation selection. Ph.D. Dissertation, University of Minnesota, pp. 173.
Varrieur, J.M. 2002. AFLP marker analysis of monoploid potato. M.S. Thesis, Virginia Polytechnic Institute & State University, Blacksburg.
Additional publications prior to 2002 which reported the use of NRSP-6 Solanum introductions this year were reported on the full committee copy of the annual report.