Uncovering novel sources of anthracnose resistance in populations of genetically diverse sorghums (Final Report)
- USDA-ARS Tropical Agriculture Research Station, Mayaguez (Puerto Rico); The University of Georgia
- USDA-ARS Crop Germplasm Research Unit, College Station, TX (United States)
- USDA-ARS Crop Genetics and Breeding Research Unit, Tifton, GA (United States)
- University of Florida, Gainesville, FL (United States)
- University of Georgia, Athens, GA (United States)
Anthracnose (Colletotrichum sublineolum P. Henn., in Kabat and Bubák) is the major disease of sorghum [Sorghum bicolor (L.) Moench] in the Southeastern United States and the Caribbean, where the acreage of sorghum has been expanding rapidly in the past decade. Anthracnose resistance is the most effective and sustainable solution to ensuring sorghum biomass yield and biomass quality. During the past few years, multiple research efforts have been directed to identify new sources of resistance in the Sorghum Association Panel (SAP) and tropical germplasm, and to delimit genomic regions associated with the observed anthracnose resistant response. Nevertheless, these resistance loci only explained a limited portion of the observed variation indicating the existence of other resistance loci. This research project was directed to uncover anthracnose resistance loci present in the SAP and to validate previously identified resistance loci via introgression into susceptible sweet sorghums. In addition, U.S. National Plant Germplasm System (NPGS) tropical sorghum germplasm was evaluated to identify new sources of anthracnose resistance.
- Research Organization:
- University of Georgia, Athens, GA (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- SC0019454; SC0019097
- OSTI ID:
- 1901798
- Report Number(s):
- DOE-UGA--19454
- Country of Publication:
- United States
- Language:
- English
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