Brief Summary of Minutes of Annual Meeting

NRSP-6 Technical Committee Meeting Minutes Synopsis Venue: Best Western Columbia River Inn, Cascade Locks, OR / June 9-10, 2008 Leadership: C. Brown, Chair & Host; D. Douches, Vice Chair; I. Vales, Secretary People present: Martin, Max. W. (mwmarti1@wis.edu) - NRSP6; Hoopes, Bob (robert.hoopes@fritolay.com) - Frito Lay; De Jong, Walter (wsd2@cornell.edu) - Cornell; Bamberg, John (john.bamberg@ars.usda.gov) - (USDA-ARS); Kunibe, Elizabeth (elizbowe@hotmail.com) - USDA-SARU Univ. of AK; Douches, David (douchesd@msu.edu) - Michigan State University; Spooner, David (david.spooner@ars.usda.gov) - USDA-ARS; Wisler, Gail (gail.wisler@ars.usda.gov) - USDA-ARS; Abad, Jorge (jorge.a.abad@aphids.usda.gov) - USDA-APHIS; Vales, Isabel (isabel.vales@oregonstate.edu) - Oregon State University; Brown, Chuck (chuck.brown@ars.usda.gov) - USDA-ARS Business: Welcome, introductions, misc. announcements, distribution of documents were followed by a discussion of several related topics: Zebra chip, Purple top, nematodes, ethnobotany of potato in AK/PNW, SolCAP proposal. Review of 2007 minutes. No Admin Advisors were present. Reports were given by the five regional and ARS technical reps. Germplasm from NRSP6 continues to be extensively used to address practical potato breeding problems. No Agriculture and Agrifood Canada rep was present. Project Leader Bamberg gave report on follow-through for decisions made at the committee's 2007 meeting. Bamberg reported on advances in each of the five mission areas of the genebank: Introduction of new stocks, Preservation, Evaluation, Distribution (Classification would be later presented later by the project's taxonomist, Spooner). Bamberg presented budget news: Successful initiative to restore NRSP6 to $150K level and take our message directly to SAESD. Funding outlook from Wisconsin and ARS partners is not encouraging. Spooner presented results of recent taxonomic research and collecting. USDA/ARS/NPS news was represented by Wisler who reported on various national issues, technical and financial. No CSREES representative was present. Abad of APHIS/Quarantine Lab gave report on quarantine operations with respect to potato. Guest presentation on ethnobotany of native Alaskan potatoes was given by Kunibe. A resolution thanking the host was adopted, new officers were elected, and location for TAC09 selected. The NRSP6 meeting ended, and those present conducted business as the Potato Crop Germplasm committee meeting, conducting a preliminary discussion of FY09 germplasm evaluation grant proposals.

3. PROGRESS AND PRINCIPAL ACCOMPLISHMENTS A. Introduction of New Stocks John Bamberg and Alfonso del Rio (US Potato Genebank) had a successful collecting expedition to the Guadalupe Mountain National Park (GMNP) in west Texas in late September of 2007 (supported with extramural funding from USDA). They collected four new populations. These were the first S. stoloniferum germplasm from Culberson County, TX and first potato collections from Eddy County, NM. A total of 5 accessions were assigned PI numbers in 2007: one primitive cultivar from Peru and 4 accessions collected from the SW United States. These accessions are now available from the NRSP-6 Solanum germplasm collection. The NRSP-6 web page (http://www.ars-grin.gov/nr6) has been updated to include all new stocks and screening information. Clients who have ordered from NRSP-6 in the past four years are contacted three times per year informing them of new materials that are now available either as true seed, tubers, in vitro plantlets, or herbarium samples. A new service we are offering is dried ground leaf samples for DNA testing. For foreign requesters this is useful since there are no quarantine restrictions on dried tissue. B. Preservation and Increase of Stocks In 2007, a total of 155 accessions were increased as botanical seed populations. A total of 672 potato spindle tuber viroid (PSTVd) tests were performed on seed increase parents, seedlots and research materials. Germination tests were performed on 1120 accessions, ploidy determinations were made on 35 accessions, and tetrazolium seed viability tests were done on 55 seedlots. Progress was made on several international collaborative projects. We are working with CIP on a project to assess the impact of agrichemicals on pollen and seed viability of wild species (oral presentation at the PAA07). Agrichemicals depress reproduction and diversity of wild potato germplasm, suggesting remote populations should be targeted for future collecting by genebanks. John Bamberg visited Peru in May 2007 to harvest calcium and frost plots. A low cost source of calcium applied to research plots located in the highlands of Peru resulted in an increase yield of 60% for some clones. Work is now being planned to identify genetics of stocks that respond well to added calcium. Frost is a major problem for the highland farmers in Peru, with major devastating episodes in the past two years. We supplied selected frost resistant germplasm for testing, and continue to synthesize hybrids of native cultivars with highly frost resistant wild species for tests in Peru. We initiated quarantine seed increase of seed rescued from the VIR collection to incorporate into the US Potato Genebank. We are also planning an intergenebank cooperative project to evaluate primitive cultivated species andigena for hidden recessive traits and incorporate word holdings data into the global germplasm database (IPD). Hypertension in humans and black spot bruise in potatoes are both problems for which increased tuber potassium could have a positive influence. Potassium screening of the minicore collection funded by the Crop Germplasm Committee (CGC) grant has shown great species variation which could lead to a selection of high-K varieties that lower blood pressure and reduce black spot bruise. We continued screening for antioxidants in uncolored wild potato species tubers of S. okadae hybrids with USDA cooperator Dr. Navarre. We have extended this work to discovery of high antiox species more crossable to tuberosum, and synthesis of diploid segregating populations. We discovered a new floral development mutant in S. microdontum which we have named crazy sepal (cs1) because it grows multiple (indeterminate) sets of sepals instead of anthers and pistils. This is a potential tool for studying floral development and cost of flowering on tuber yield. It would prevent transgene escape from GMO potato. We have made crosses with diploid tuberosum to investigate these opportunities and made the mutant available to other workers (Short Communication in AJPR). Plant parts are known to vary widely for pH, but little is known about the variation, basis, or utility of pH extremes in potato tubers. When pH was measured on species of the mini-core collection, replicates over years and populations gave consistent results, with pH range of (5.0-6.2). Fine screening has now discovered very acidic species more amenable to crossing with tuberosum, and we have produced F2 segregating populations. This opens the door to studies linking acidity to a wide range of tuber parameters like processing quality, skin color retention, disease resistance, calcium content, glycemic index and acrylamide formation. Solanum microdontum is remarkably extreme and variable for several characteristics (acid, potassium, calcium, late blight and antioxidants). We continued to perform replicated characterization of S. microdontum for these traits. We also collected DNA to compare variation for useful phenotypic traits to gross genetic variation. C. Classification Dr. Spooner et al. have published and are working on five different areas of potato research: 1) molecular markers for genebank studies, 2) cultivated potato origins, 3) relationships in wild tomatoes and potatoes, 4) the predictive power of taxonomy relative to disease resistance data, and 5) a linkage map showing late blight in wild potatoes. D. Distribution The volume and types of stocks sent to various consignee categories are summarized in the table below. NRSP-6 distributed to clients in 24 states of the USA and 8 other countries.

6. PUBLICATIONS ISSUED DURING THE YEAR A. Publications issued by NRSP-6 Personnel Alvarez, N.M., I.E. Peralta and D. Spooner. 2007. Morphological evaluation of the Solanum brevicaule complex: a replicated field trial from Argentina. Am J Potato Res 84:73-74. (Abstract) Ames, M., A. Salas-Lopez and D. Spooner. 2007. Taxonomic evaluation of putatively related wild potato species of Solanum series Cuneoalata, Ingifolia, Olmosiana, Piurana, and Simplicissima, by morphological data from an Andean field station. Am J Potato Res 84:74. (Abstract) Bamberg, J.B. 2007. Crazy Sepal: A new floral Sepallata-like mutant in the wild potato Solanum microdontum Bitter. Am J Potato Res 84:76. (Abstract) Bamberg, J.B., A. del Rio and C. Fernandez. 2007. Sampling remote in situ sites of USA wild potato captures more diversity. Am J Potato Res 84:76. (Abstract) Bamberg, John and Alecia Kiszonas. 2007. Variation for tuber acidity among potato species. Am J Potato Res 84:76-77. (Abstract) Bamberg, J.B., J.P. Palta and M.W. Martin. 2007. Using a wild species, Solanum microdontum, to move high tuber calcium trait to the cultivated potatoes. Am J Potato Res 84:77. (Abstract) Busse, J.S., J.B. Bamberg and J.P. Palta. 2007. Correlation between aerial shoot and tuber calcium accumulation in Solanum genotypes segregating for tuber calcium uptake efficiency. Am J Potato Res 84:79-80. (Abstract) Centeno-Diaz, Ruth, Alberto Salas-Lopez, Alfonso del Rio, John Bamberg, and William Roca. 2007. Impact of crop pesticides on the reproductive ability of wild potato species. Am J Potato Res 84:81-82. (Abstract) Fajardo, D., A. Salas-Lopez, R. Castillo, and D. Spooner. 2007. Species and series boundaries of Solanum series Conicibaccata and phonetically similar species in ser. Piurana (sect. Petota): Morphological data from a field study in Peru. Am J Potato Res 84:89-90. (Abstract) Hijmans, R.J., T. Gavrilenko, S. Stephenson, J.B. Bamberg, A. Salas, and D.M. Spooner. 2007. Geographical and environmental range expansion through polyploidy in wild potatoes (Solanum section Petota). Global Ecol Biogeogr 16:485-495 (Supplement 1, Supplement 3, Ploidy paper data) Knapp, S., D.M. Spooner and B. Leon. 2006. Solanaceae endemicas del Peru. Rev. Peru. Biol. Numero especial 13(2):612s-643s. Nzaramba, M. Ndambe, J.B. Bamberg and J.C. Miller, Jr. 2007. Effect of propagule type and growing environment on antioxidant activity and total phenolic content in potato germplasm. Am J Potato Res 84:323-330. Peralta, I.E. and D.M. Spooner. 2007. History, origin and early cultivation of tomato (Solanaceae). Pp 1-27. In: Genetic Improvement of Solanaceous Crops, Vol. 2: Tomato. M.K. Razdan and A.K. Mattoo (eds.), Science Publishers, Enfield, USA. Rios, D., M. Ghislain, F. Rodriguez, and D.M. Spooner. 2007. What is the origin of the European potato? Evidence from Canary Island landraces. Crop Sci 47:1271-1280. Rodriquez, F., F. Wu, S. Tanksley, and D. Spooner. 2007. A multiple single-copy gene phylogenetic analysis of wild tomatoes (Solanum L. section Lycopersicon (Mill.) Wettst.) and their outgroup relatives. Am J. Potato Res 84:113. (Abstract) Salas-Lopez, A., N.M. Alvarez, M. Ames, M. Blancas, D. Fajardo, H. Juarez, I.E. Peralta, W. Roca, E. Rojas, R. Simon, M. Vargas, K. Vivanco, and D. Spooner. Am J Potato Res 84:115. (Abstract) Simko, I., S.H. Jansky, S. Stephenson, and D.M. Spooner. 2007. Genetics of resistance to pests and disease. In: Potato Biology and Biotechnology: Advances and Perspectives. R. Vreugdenhil, J. Bradshaw, C. Gebhardt, F. Govers, D.K.L. MacKerron, M.A. Taylor, and H.A. Ross (eds.). pp. 117-155, Elsevier, Amsterdam, The Netherlands. Spooner, D.M. 2006. Simsia Persoon for Flora of North America North of Mexico. Vol. 21:140-141. Oxford University Press, New York. Spooner, D.M., L. Bohs, J. Giovannoni, R. Olmstead, and S. Daitsuke (Editors). 2007. Solanaceae VI  Genomics meets biodiversity. Acta Hort 1-564. Spooner, D.M., D. Fajardo and G.J. Bryan. 2007. Species limits of Solanum berthaultii Hawkes and S. tarijense Hawkes and the implications for species boundaries in Solanum sect. Petota. Taxon 56:987-999. Spooner, D.M., S.H. Jansky and A.J. Bussan. 2007. Experiences of a local arrangement committee for a large scientific conference. Acta Hort 745:513-532. Spooner, D.M., J. Nunez, G. Trujillo, M. del Rosario Herrera, F. Guzman, and M. Ghislain. 2007. Extensive simple sequence repeat genotyping of potato landraces supports a major reevaluation of their gene pool structure and classification. Proc Natl Acad Sci USA 104:19398-19403. Vega, S., M. Aziz, J. Bamberg, A. Verma, and J. Palta. 2007. Screening potato germplasm for carboxypeptidase inhibitor and its potential anticancer properties. Am J Potato Res 84:118-119. (Abstract) B. Journal Articles and Abstracts Reporting Research with NRSP-6 Stocks Alvarez, A.E. 2007. Resistance mechanisms of Solanum species to Myzus persicae. Wageningen University, Wageningen Netherlands. Iv + 182 pp. Alvarez, A.E., W.F. Tjallingii, E. Garzo, V. Vleeshouwers, M. Dicke, and B. Vosman. 2006. Location of resistance factors in the leaves of potato and wild tuber-bearing Solanum species to the aphid Myzus persicae. Ent Exp et Appl 121(2):145-157. Bae, Jinjoo, Shelley Jansky and Douglas Rouse. 2007. Early generation selection for resistance to Verticillium wilt. Am J Potato Res 84:75. (Abstract) Baldwin, S., R. Genet, R. Macknight, K. Dodds, and J.M.E. Jacobs. 2007. Genetics of resistance to powdery scab (Spongospora subterranean) of potato. Am J Potato Res 84:75-76. (Abstract) Beketova, M.P., P.E. Drobyazina and E.E. Khavkin. 2006. The R1 gene for late blight resistance in early and late maturing potato cultivars. Russian j Plant Physiol 53(3):384-389. Beketova, M.P., P.E. Drobyazina, E.A. Sokolova, E.A. Tsarkova, V.A. Vorobiev, I.M. Yashina, and E.E. Khavkin. 2007. DNA markers for potato introgression breeding, In: Potato production and innovative technologies (Haverkort, A.J. and Anisimov, B.V., eds.), Wageningen Acad. Publ., pp. 397-404. Belknap, W.R., S.S. Chang, D.R. Rockhold, N.T. Taylor, and K.F. McCue. 2007. Solanum bulbocastanum polyubiquitin Bu427 promoter and uses thereof. Patent Pending: United States. Belknap, W.R., S.S. Chang, D.R. Rockhold, N.T. Taylor, and K.F. McCue. 2007. Solanum bulbocastanum polyubiquitin Bul409 promoter and uses thereof. Patent Pending: United States. Benoit, Bizimungu and Qin Chen. 2007. Evaluation of interspecific hybrid derivatives possessing disease resistance traits for potential use in a potato breeding program. Am J Potato Res 84:78. (Abstract) Bernal, A.M., J.E. Arias, J.D. Moreno, I. Valbuena, and L.E. Rodriguez. 2006. Confrontation between an a priori clustering of potato germplasm Solanum tuberosum subspecies andigena vs a non-hierarchic clustering. Agronomia Colombiana 24(2):214-225. Bizimungu, B., D.R. Lynch, L.M. Kawchuk, Q. Chen, M. Konschuh, C. Schaupmeyer, J. Wahab, D. Waterer, D. Driedger, H. Wolfe, P. McAllister, R. Howard, and H. W. Platt. 2007. Northstar: A high-yielding, white cold-storage chipping potato cultivar with attractive oval tubers resistant to late blight. Am J Potato Res 84:437-445. Bradeen, J.M. and D.S. Mollov. 2007. Herbicide tolerance in primitive diploid potato species comprising superseries Stellata: Toward establishment of seedling cultivation conditions for field evaluations. Am J Potato Res 84:415-424. Bradeen, J.M. and D.S. Mollov. 2007. Herbicide tolerance in Diploid 1EBN and 2EBN potato species. Potato Assoc of America Annual Meeting, Idaho Falls, ID, Aug. 2007. (Abstract) Burkhart, C.R., B.J. Christ and K.G. Haynes. 2007. Non-additive genetic variance governs resistance to Fusarium dry rot in a diploid hybrid potato population. Am J Potato Res 84:199-204. Carputo, D., L. Castaldi, I. Caruso, R. Aversano, L. Monti, and L. Frusciante. 2007. Resistance to frost and tuber soft rot in near-pentaploid Solanum tuberosum-S. commersonii hybrids. Breed Sci 57(2):145-151. Carputo, Domenico, Amalia Barone, Immacolata Caruso, Massimo Iorizzo, Astolfo Zoina, and Luigi Frusciante. 2007. Fertile Solanum commersonii-S. tuberosum sexual hybrids as source of resistance to Ralstonia solanacearum. Am J Potato Res 84:80. (Abstract) Chantha, S.-C. and D.P. Matton. 2007. Underexpression of the plant NOTCHLESS gene, encoding a WD repeat protein, causes pleitropic phenotype during plant development. Planta 225:1107-1120. Chantha, S.-C., F. Tebbji and D.P. Matton. 2007. From the Notch signaling pathway to ribosome biogenesis. Plant Signaling & Behavior 2:168-170. Chevalier, E. and D.P. Matton. 2007. RALF, a secreted peptide involved in plant reproduction. Plant Biology & Botany Joint Congress, American Society of Plant Biologists (ASPB), Chicago, Illinois, USA, 7-11 July, 2007. Poster presentation. (Abstract) Clark, Catherine, Yvan Pelletier, Robert Coffin, and William Hardy. 2007. Field evaluation of resistance of wild Solanum species to aphids. Northeast Potato Technology Forum. Charlottetown, PEI, Canada. March 14-15, 2007. Colton, L., S. Wielgus, Y. Chen, B. Bowen, F. Nevaro, and J. Jiang. 2007. Continuation of marker-assisted selection for late blight resistant potatoes. Am J Potato Res 84:83-84. (Abstract) Cortes, C., E. Salazar, H. Prieto, and R. Pertuze. 2006. Determinacion del grado de hibridacion entre papa cultivada (Solanum tuberosum) y especies silvestres relacionadas a partir de polinizacion dirigida (Determination of the degree of hibridization among cultivated potato (Solanum tuberosum) and wild relative species by manual pollinization). 57° Congreso Agronomico de Chile, Santiago-Chile, October 17-20, 2006. Abstract book, p. 97. (Abstract) Cortes, C., E. Salazar, H. Prieto, and R. Pertuze. 2007. Antecedentes sobre la Posibilidad de Hibridacion entre Papa Cultivada y Diez Especies de Solanum Silvestres Nativos de Chile (Antecedents about hybridization possibility between cultivated potato and ten wild native Solanum species of Chile). VI Symposium of Genetic Resources for Latin America and the Caribbean. Mexico DF, Mexico. November 13-16, 2007. (Abstract) Costanzo, S., M. Ospina-Giraldo, K.L. Deahl, C.J. Baker, and R.W. Jones. 2007. Alternate intron processing of family 5 endoglucanase transcripts from the genus Phytophthora. Current Genetics 52:115-123. DHoop, B.B., M.J. Paulo, R.A. Mank, H.J. van Eck, and F.A. van Eeuwijk. 2007. Association mapping of quality traits in potato (Solanum tuberosum L.). Euphytica DOI 10.1007/s10681-007-9565-5. Domanski, L., E. Zimnoch-Guzowska, M. Domanska, and H. Jakuczun. 2006. The effect of heterosis of diploid potato clone DG.97-943 of cold shipping type and producing 2n gametes. Biuletyn Instyt Hod Aklim Roslin 240/241:307-313.Gray-Mitsumune, M., M. OBrien, C. Bertrand, F. Tebbji, A. Nantel, and D.P. Matton. 2006. Loss of ovule identity induced by over-expression of the fertilization-related kinase 2 (ScFRK2), a MAPKKK FROM Solanum chacoense. J Exp Botany 57(15):4171-4187. Dorion, S., F. Dumas and J. Rivoal. 2006. Autophosphorylation of Solanum chacoense cytosolic nucleoside diphosphate kinase on Ser117. J Exp Botany 57(15):4079-4088. Drobyazina, P.E. and E.E. Khavkin. 2007. Structural homologs of CONSTANS and LEAFY in potato and its wild relatives. Acta Hort 745:411-419. Drobyazina, P.E. and E.E. Khavkin. 2007. Two structural variants of the CONSTANS-LIKE gene in long- and short-day Solanum plants. ASPB Plant Biology & Botany Joint Congress, Chicago, USA, July 2007. (Abstract) Drobyazina, P.E., E.V. Rogozina, E.A. Sokolova, E.A. Tsarkova, V.A. Vorobiev, I.M. Yashina, G.A. Yakovleva, and E.E. Khavkin. 2007. SCAR-markers of Solanum wild species for introgression potato breeding. II International Vavilov Conference Crop Genetic Resources in the 21st Century: Current Status, Problems and Prospects, St. Petersburg, Russia, November 2007. (Abstract) Erazzu, L.E. and E.L. Camadro. 2007. Direct and indirect detection of 2n eggs in hybrid diploid families derived from haploid tbr x wild species crosses. Euphytica 155(1/2):57-62. Franco J. and G. Main. 2006. Screening for resistance to Nacobbus aberrans and Globodera spp. in wild potato species resistant to other pathogens. Nematol Mediterranea 34(2):165-169. Gabriel, J., A. Coca, G. Plata, and J.E. Parlevliet. 2007. Characterization of the resistance to Phytophthora infestans in local potato cultivars in Bolivia. Euphytica 153(3):321-328. Germain, H., J. Houde, M. Gray-Mitsumune, R.T. Sawasaki, Y. Endo, and D.P. Matton. 2007. Characterization of ScORK28, a transmembrane functional protein receptor kinase predominantly expressed in ovaries from the wild potato species Solanum chacoense. FEBS Letters 581:5137-5142. Gillen, A.M. and R.G. Novy. 2007. Molecular characterization of the progeny of Solanum etuberosum identifies a genomic region associated with resistance to potato leafroll virus. Euphytica 155(3):403-415. Goyer, A. and D.A. Navarre. 2007. Determination of folate concentrations in diverse potato germplasm using a trienzyme extraction and a microbiological assay. J Ag Food Chem 55(9):3523-3528. Goyer, A., P. Hamm and R. Navarre. 2007. Germplasm mining and metabolic engineering as strategies to boost folates in potato tubers. Am J Potato Res 84:90-91. (Abstract) Groza, H.I., B.D. Bowen, A.J. Bussan, W.R. Stevenson, F. Navarro, D. Kichefski, S.J. Peloquin, J. Palta, and J. Jiang. 2007. MegaChip  A new potato variety for chipping. Am J Potato Res 84:343-350. Halseth, D.E. and E.R. Sandsted. 2007. Management profile for Marcy, a high yielding chipping variety. Am J Potato Res 84:91. (Abstract) Haynes, K.G. 2007. Chip color in a high specific gravity Solanum phureja-Solanum stenotomum population. Am J Potato Res 84:92. (Abstract) Haynes, K.G., R.W. Goth, D.H. Lambert, and B.J. Christ. 2007. Evaluation of a short-day adapted tetraploid potato population with horizontal resistance to Phytophthora infestans under long-day conditions in northern Maine. Am J Potato Res 84:459-466. Honermeier, B. and G. Knipp. 2006. Fructans potato  health improving components in new tubers. Kartoffelbau 7:336-338. Hudak, I., J. Dobranszki and M. Hevesi. 2006. In vitro methods for testing potato clones against soft rot Erwiniae. In: Proceedings of the Fifth International Symposium on In Vitro Culture and Horticultural Breeding. Debrecen, Hungary, September 12-17, 2004. (M.G. Fari, I. Holb and G.D. Bisztray, eds.) Acta Hort 725(1):445-449. Inglis, D.A., C.R. Brown, B.G. Gunderson, L.D. Porter, J.S. Miller, D.A. Johnson, H. Lozoya-Saldana, and K.G. Haynes. 2007. Assessment of Solanum hougasii in Washington and Mexico as a source of resistance to late blight. Am J Potato Res 84:217-228. Iorizzo, M., J.M. Bradeen, L. Frusciante, and D. Carputo. 2007. Development of a DarT Microarray for Comparative Structural Genomics and Mapping of Agriculturally Significant Genes in Wild Potato Species. ANNUAL CONGRESS SOCIETA ITALIANA DI GENETICA AGRARIA XLXI, Riva del Garda, Italy, Sept. 2007. (Abstract) Iovene, M., S. Savarese, T. Cardi, L. Frusciante, N. Scotti, P. Simon, and D. Carputo. 2007. Assessment of nuclear and cytoplasmic genome composition in Solanum bulbocastanum (+) S. tuberosum somatic hybrids. Am J Potato Res 84:95. (Abstract) Iovene, M., S. Savarese, T. Cardi, L. Frusciante, N. Scotti, P.W. Simon, and D. Carputo. 2007. Nuclear and cytoplasmic genome composition of Solanum bulbocastanum (+) S. tuberosum somatic hybrids. Genome 50(5):443-450. Jansky, Shelley. 2007. Characterization of genotypic and environmental contributions to baked potato flavor. Am J Potato Res 84:95-96. (Abstract) Kelly, K., A. Gillen, J. Whitworth, and R. Novy. 2007. Development of molecular markers for introgression of potato leafroll virus resistance from S. etuberosum into cultivated potato. Am J Potato Res 84:97. (Abstract) Khu DongMan, S.L. Love, Mo HwangSung, Li KuiHua, and Lim HakTae. 2007. In vitro screening of potato genotypes for resistance to common scab using thaxtomin A. Hort Environ Biotech 48(4):224-227. Kielbowicz-Matuk, Agnieszka and Tadeusz Rorat. 2007. Expression of gene encoding lipid transfer protein (SsLTP1) is associated with adaptation of S. sogarandinum to dehydration stresses (cold, drought and salinity). XV Ogolnopolskie Seminarium Sekcji Mrozoodpornosci, KNO PAN, Iinstytut Dendrologii PAN w Korniku, 24-25 maj 2007, -str. 5. (Abstract) Kielbowicz-Matuk, Agnieszka, Pascal Rey and Tadeusz Rorat. 2007. The abundance of a single domain cyclophilin in Solanaceae is regulated as a function of organ type and high temperature and not by other environmental constraints. Physiol Plant 131:387-398. Kozlov, V., N. Rusetsky, A. Chashinsky, H. Zhuromski, and A. Rajko. 2007. Wild species of Potato, as sources of resistance to Pathogens. Plant protection: Manual of Proceeding/Anniversary of the Institute of Plant Protection  Nesvizh, 2007. Pp 196-203. Kozlov, V.A., N.V. Rusetsky and A.V. Chashinsky. 2007. Studying and use of wild and cultural kinds at creation of an initial material of a potato//Genetic resources of cultural plants in XXI century: a condition, problems, prospects / Theses of reports II Vavilovs conferences. St. Petersburg, November 26-30, 2007, St. Petersburg, VIR, 2007. C. 483-485. Kozlov, V.A., N.V. Rusetsky and A.V. Chashinsky. 2007. Results of selecting initial breeding material for potato//Potato growing: Manual of Proceeding/Research and Practical Center of National Academy of Sciences of Belarus for Potato, Fruit and Vegetable Growing. Minsk, 2007, 12:153-165. Lafleur, E., C. Kapfer, M. Gray-Mitsumune, and D.P. Matton. 2007. Involvement of the Solanum chacoense MAPKKK SFRK1 in embryo sac development. Plant Biology & Botany Joint Congress, American Society of Plant Biologists (ASPB), Chicago, Illinois, USA, 7-11 July, 2007. Oral presentation. (Abstract) Lafleur, E., C. Kapfer, M. Gray-Mitsumune, and D.P. Matton. 2007. A family of MAPKKK from Solanum chacoense involved in ovule and embryo sac development. Plant Protein Phosphorylation-Dephosphorylation & Mini-Symposium on Plant Proteomics, Twenty-Fourth Annual Missouri Plant Biology Symposium, May 22-25, 2007, C.S. Bond Life Sciences Center, University of Missouri, Columbia, Missouri, USA. Poster presentation. (Abstract) Lawrence, S.D., N.G. Novak and M.B. Blackburn. 2007. Inhibition of proteinase inhibitor transcripts by Leptinotarsa decemlineata regurgitant in Solanum Lycopersicum. J Chem Ecol 33(5):1041-1048. Levy, D. and R.E. Veilleux. 2007. Adaptation of potato to high temperatures and salinity  a review. Am J Potato Res 84:487-506. (Invited Review) Li, Haiyan, D. Beasley and Q Chen. 2007. Cytological and RAPD analysis of interspecific somatic hybrids Solanum pinnatisectum (+) S. tuberosum. Am J Potato Res 84:100-101. (Abstract) Lightbourn, G.J., J.G. Jelesko and R.E. Veilleux. 2007. Retrotransposon-based markers from potato monoploids used in somatic hybridization. Genome 50:492-501. Lightbourn, G.J. and R.E. Veilleux. 2007. Production and evaluation of somatic hybrids derived from monoploid potato. Am J Potato Res 84:425-435. Liu, Z.Y. and D. Halterman. 2006. Identification and characterization of RB-orthologous genes from the late blight-resistant wild potato species Solanum verrucosum. Physiol Molec Pl Path 69(4/6):230-239. 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Functional genomics of signal transduction pathways during reproduction in a Solanaceous species: involvement of MAPK cascades and of receptor-like kinases. Technische Universität München, Wissenschaftszentrum Weihenstephan, Freising, Germany, 15 November 2007. Invited seminar speaker. (Abstract) McCann, Leah and Philipp Simon. 2007. Reducing sugar, asparagine, and chip color in wild Solanum species. Am J Potato Res 84:103. (Abstract) McCue, K.F., P.V. Allen, L.V. Shepherd, A. Blake, M.M. Maccree, D.R. Rockhold, R.G. Novy, D. Stewart, H.V. Davies, and W.R. Belknap. 2007. Potato glycosterol rhamnosyltransferase, the terminal step in triose side-chain biosynthesis. Phytochem 68:327-334. McCue, K.F., P.V. Allen, L.V. Shepherd, A. Blake, D.R. Rockhold, R.G. Novy, D. Stewart, H.V. Davies, and W.R. Belknap. 2007. Manipulation and compensation of steroidal glycoalkaloid biosynthesis in potatoes. Acta Hort 745:343-350. McCue, K.F., P.V. Allen, L.V. Shepherd, D.R. Rockhold, M.M. Maccree, H.V. 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Multiple-site identification of potato parent clones conferring high levels of late blight resistance with a corresponding genetic model for resistance. Am J Potato Res 84:313-321. Winton, L.M., R.H. Leiner, A.L. Krohn, and K.L. Deahl. 2007. Occurrence of Late Blight caused by Phytophthora infestans on potato and tomato in Alaska. Plant Disease 91:634. Young, Gillian K., Louise R. Cooke, William W. Kirk, Pavani Tumbalam, Frances M. Perez, and Kenneth L. Deahl. 2007. The influence of competition and host plant resistance on selection of Phytophthora infestans populations in Michigan State and Northern Ireland. PhD Thesis 12/07. Paper submitted to European Journal of Plant Disease. Zhang, L.-H., H. Mojtahedi, H. Kuang, B. Baker, and C.R. Brown. 2007. Marker-assisted selection of Columbia root-knot nematode resistance introgressed from Solanum bulbocastanum. Crop Sci 47:2021-2026. Zhang, L.-H., H. Mojtahedi, H. Kuang, B. Baker, and C.R. Brown. 2007. 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