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ARS Home » Southeast Area » Tifton, Georgia » Crop Genetics and Breeding Research » Research » Research Project #437730

Research Project: Precision Breeding Using Molecular Genetic Tools to Develop Disease Resistant Peanut Cultivars

Location: Crop Genetics and Breeding Research

Project Number: 6048-21000-029-13-R
Project Type: Reimbursable Cooperative Agreement

Start Date: Feb 1, 2020
End Date: Jul 1, 2021

Objective:
1. Develop high-yielding peanut varieties with high levels of resistance to leaf spot. 2. Seed increase and purification using summer and winter nurseries for lines that are expected to be released as cultivars. 3. Develop breeding populations and begin to use marker assisted selection for resistance to white mold.

Approach:
Crosses have been made and an accelerated backcrossing program is ongoing using marker assisted selection (MAS) to introgress resistance to late leaf spot into our best varieties and breeding lines. Crosses have been made with sources of resistance to white mold and we wlll use MAS to attempt to combine resistance to white mold with resistance to leaf spot adn high yield and grade. Summer and winter nurseries will be used to increase seed for lines that could potentially be released as varieties.