417-4 Identification of QTLs for Economically Significant Traits in Peanut.

Poster Number 602

See more from this Division: C01 Crop Breeding & Genetics
See more from this Session: Crop Breeding and Genetics: III

Wednesday, November 18, 2015
Minneapolis Convention Center, Exhibit Hall BC

C. Corley Holbrook, Crop Genetics and Breeding Research Unit, USDA-ARS, Tifton, GA, Peggy Ozias-Akins, Horticulture, University of Georgia, Tifton, GA, Ye Chu, 2360 Rainwater Rd, University of Georgia, Tifton, GA, Thomas George Isleib, North Carolina State University, Raleigh, NC, Albert K. Culbreath, Plant Pathology, University of Georgia, Tifton, GA, Tim Brenneman, UGA, Tifton, GA, Charles Chen, Auburn University, Auburn University, AL, Josh Clevenger, University of Georgia - Tifton, Tifton, GA, Carolina Chavarro, Center for Applied Genetic Technologies, University of Georgia, Athens, GA, Scott A. Jackson, Dept. of Crop & Soil Sciences, University of Georgia - Athens, Athens, GA, Chris Butts, National Peanut Research Laboratory, USDA-ARS, Dawson, GA, Marshall Lamb, 1011 Forrester Dr SE, ARS-USDA, Dawson, GA, Craig Kvien, NESPAL, University of Georgia, Tifton, GA, Thomas R. Sinclair, Crop Science Department, North Carolina State University, Raleigh, NC, Avat Shekoofa, University of Tennessee - Knoxville, Jackson, TN, Barry L. Tillman, North Florida Research and Education Center, University of Florida, Marianna, FL, Mark D. Burow, Texas A&M AgriLife Research, Lubbock, TX and Baozhu Guo, Crop Protection and Management Research Unit, USDA-ARS, Tifton, GA
Abstract:
Phenotyping of structured populations, along with molecular genotyping is needed for marker development in peanut.  This research is essential for making the peanut genome sequence useful to breeders because it will make the connection between genes, gene markers, genetic maps, and agronomic traits in peanut.  Several structured populations are available, and phenotyping efforts are ongoing.  The “CAP” populations consist of sixteen inbred mapping populations that were created using parents that maximize genetic diversity for practical breeding objectives.  Several research groups have selected specific populations to phenotype for biotic and abiotic stresses.  Two of these population have also been extensively phenotypes for seed and pod characteristics, and yield.  Data analysis has resulted in the identification of QTLs for resistance to several important diseases.  QTLs have also been identified for yield and grade characteristics. Studies are ongoing in 2015 to confirm these results and to test the applicability of these QTLs in maker assisted selection.

See more from this Division: C01 Crop Breeding & Genetics
See more from this Session: Crop Breeding and Genetics: III