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Title:   Author  item
                                            Cadle-Davidson, Lanceitem
                                            REISCH, BRUCE - Cornell Universityitem
                                            SUN, QI - Cornell Universityitem
                                            SCHWEITZER, PETER - Cornell Universityitem
                                            Londo, Jasonitem
                                            Ledbetter, Craigitem
                                            LUBY, JIM - University Of Minnesotaitem
                                            HEMSTAD, PETER - University Of Minnesotaitem
                                            HEGEMAN, ADRIAN - University Of Minnesotaitem
                                            TEH, SOON LI - University Of Minnesotaitem
                                            MANNS, DAVID - Cornell Universityitem
                                            BARBA, PAOLA - Cornell Universityitem
                                            HYMA, KATIE - Cornell Universityitem
                                            Lillis, Jacquelynitem
                                            FRESNEDO, JONATHAN - Cornell Universityitem
                                            YANG, SHANSHAN - Cornell Universityitem
                                            TAKACS, ELIZABETH - Cornell University
  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.


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