Rosbreed enabling marker-assisted breeding in Rosaceae A predictive genetic test for apple "fresh sensation" to provide strategies for improved breeding and fruit handling
Sujeet Verma, Yingzhu Guan, Jim McFerson, Kate Evans, Jim Luby, Eric Van de Weg and Cameron Peace
Washington State University Academic Showcase (Pullman, Washington, 03/30/2012)
Apple Acidity Crispness Juiciness Ma-locus Maker-assisted-breeding pedigree SSR markers SNP markers QTL-analysis Haplotype-variants
Discoveries in genomics have provided new information on genetic control of important traits. Converting these discoveries into genetic tools would enhance efficiency of apple breeding via marker-assisted selection compared to conventional phenotype-based approaches. Developing new cultivars that produce delicious fruit in abundance is the major goal of the Washington apple breeding program. A component of this deliciousness in fruit of new cultivars would be consistent delivery of a fresh sensation after long term storage. We define apple fresh sensation as a combination of crispness, acidity, and juiciness. A location in the apple genome associated with these valuable traits, the Malic acid or Ma locus, was reported a decade ago. We have identified variants of the Ma locus that appear to predispose certain cultivars to more consistently produce apples with a fresh sensation – high acidity, crispness, and juiciness. Refinement is underway of a predictive genetic test that can identify these variants through pedigree-based analysis and thereby predict genetic potential for fresh sensation. Screening many apple varieties for two simple sequence repeat markers flanking the Ma locus revealed numerous variants associated with fresh sensation differences. High-resolution SNP data from the RosBREED project is further refining our genetic test.
Metrics
171 File views/ downloads
302 Record Views
Details
Title
Rosbreed enabling marker-assisted breeding in Rosaceae A predictive genetic test for apple "fresh sensation" to provide strategies for improved breeding and fruit handling
Creators
Sujeet Verma (Author)
Yingzhu Guan (Author)
Jim McFerson (Author)
Kate Evans (Author)
Jim Luby (Author)
Eric Van de Weg (Author)
Cameron Peace (Author)
Conference
Washington State University Academic Showcase (Pullman, Washington, 03/30/2012)
Academic Unit
WSU Academic Showcase 2012
Grant note
Funded by the RosBREED (www.rosbreed.org) project which is funded by USDA-NIFA. Washington State University, Pullman, WA
Identifiers
99900502164201842
Copyright
In copyright ; openAccess ; http://rightsstatements.org/vocab/InC/1.0/ ; http://purl.org/eprint/accessRights/OpenAccess