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United States Department of Agriculture

Agricultural Research Service

Research Project: Rapid Development of High-Yielding, High-Oleic Peanut Cultivars

Location: Crop Genetics and Breeding Research

Project Number: 6048-21000-026-03-T
Project Type: Trust Fund Cooperative Agreement

Start Date: Oct 1, 2013
End Date: Sep 30, 2018

1. Use marker assisted selection in existing segregating populations to rapidly develop high-yielding, high-oleic peanut cultivars. 2. Phenotype and genotype recombinant inbred line (RIL) populations that are segregating for resistance to leaf spot, tomato spotted wilt virus (TSWV), Cylindrocladium black rot (CBR), and white mold to enable the development of additional molecular markers in peanut.

1. Leaf tissue will be sampled, DNA extracted and analyzed to determine the O/L genotype. The highest yielding high O/L genotypes will be shelled, treated to break dormancy, and sent to the winter nursery for a seed increase. This will provide enough seed to begin replicated agronomic evaluations the following summer. 2. Recombinant inbred line (RIL) populations that are segregating for economically significant diseases will be phenotyped and genotyped. This will provide data necessary for Single Nucleotide Polymorphism (SNP) discovery and genetic mapping of disease resistance quantitative trait loci (QTL) and will enable marker-assisted selection (MAS) for these traits as well as high O/L in existing breeding populations.

Last Modified: 06/24/2017
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