363-3 Genetic Variation in the US Peanut Mini-Core Collection for Agronomy, Seed Chemistry, and Nutrient Quality Traits in Peanut.
See more from this Division: C08 Plant Genetic Resources
See more from this Session: Plant Genetic Resources: I
Wednesday, November 18, 2015: 10:35 AM
Minneapolis Convention Center, 103 F
Abstract:
The ongoing genome sequencing effort in peanut will result in numerous molecular markers that can be applied to the diverse collection of recently purified mini-core germplasm. This will provide an opportunity to mine valuable genes for peanut cultivar improvement. Association mapping based on linkage disequilibrium (LD) provides a more effective way to map trait loci since ancestral recombination events that occurred in natural populations present a potentially large number of alleles per locus to associate markers and traits. Phenotyping of the US mini-core collection have demonstrated large genetic variations in yield, seed size, grade, resistance to early and late leaf spot, TSWV, seed chemistry and nutrient quality. In-depth phenotyping of this diverse collection is likely to identify markers that can be employed by breeding programs to enrich the marker-traits detection. Some superior accessions with desirable traits have been identified for peanut cultivar improvement.
See more from this Division: C08 Plant Genetic Resources
See more from this Session: Plant Genetic Resources: I