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ARS Home » Northeast Area » Geneva, New York » Grape Genetics Research » Research » Publications at this Location » Publication #311983

Research Project: Improving Fruit Quality, Disease Resistance, and Tolerance to Abiotic Stress in Grape

Location: Grape Genetics Research

Title: An update on VitisGen: recent advances in using DNA marker technologies in U.S. grape breeding programs

Author
item Cadle-davidson, Lance
item Reisch, Bruce - Cornell University - New York
item Sun, Qi - Cornell University - New York
item Schweitzer, Peter - Cornell University - New York
item Londo, Jason
item Ledbetter, Craig
item Luby, Jim - University Of Minnesota
item Hemstad, Peter - University Of Minnesota
item Hegeman, Adrian - University Of Minnesota
item Teh, Soon Li - University Of Minnesota
item Manns, David - Cornell University - New York
item Barba, Paola - Cornell University - New York
item Hyma, Katie - Cornell University - New York
item Lillis, Jacquelyn
item Fresnedo, Jonathan - Cornell University - New York
item Yang, Shanshan - Cornell University - New York
item Takacs, Elizabeth - Cornell University - New York

Submitted to: Annual International Plant & Animal Genome Conference
Publication Type: Abstract Only
Publication Acceptance Date: 11/16/2014
Publication Date: 1/1/2015
Citation: Cadle Davidson, L.E., Reisch, B., Sun, Q., Schweitzer, P., Londo, J.P., Ledbetter, C.A., Luby, J., Hemstad, P., Hegeman, A., Teh, S., Manns, D., Barba, P., Hyma, K., Lillis, J.A., Fresnedo, J., Yang, S., Takacs, E. 2015. An update on VitisGen: recent advances in using DNA marker technologies in U.S. grape breeding programs. Annual International Plant & Animal Genome Conference. W419: 14264.

Interpretive Summary:

Technical Abstract: The USDA-NIFA VitisGen project involves a multidisciplinary team of 25 co-PIs at 11 institutions aiming to optimize grape cultivar improvement. To this end, an impressive collection of phenotypic data and high-resolution genetic maps has been developed for seventeen F1 families. Here, we will present an update on a subset of our progress in adapting genotyping-by-sequencing (GBS) technology for highly heterozygous species, in the development of a Heterozygous Mapping Strategy (HetMappS) for GBS-based linkage mapping, and in the phenotyping and identification of QTL associated with diverse traits, ranging from fruit quality to pest resistance to vine morphology. We will contrast different analytical approaches we have taken and provide a roadmap for application of GBS in heterozygous species. Finally, we will discuss our experiences using other marker technologies for marker assisted selection. The results we have obtained have the potential not only to accelerate grape cultivar improvement but also to enhance our genetic understanding of Vitis spp.