CucCAP scientists identify possible sources of resistance to bacterial fruit blotch in watermelon

Bacterial fruit blotch caused by Acidovorax citrulli is a serious disease of watermelon (Citrullus lanatus) in the U.S. Currently, there are no varieties resistant to the disease. In a 3-year study, 1452 accessions and cultivars were tested for resistance to fruit blotch at the immature fruit stage, where resistance is most important for growers.

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Watermelon Team | 2020 CucCAP Progress Report

CucCAP Watermelon Team Members include Amnon Levi, Patrick Wechter, Shaker Kousik, Kai-shu Ling (USDA, ARS), Todd Wehner (NC State) and Cecilia McGregor (UGA). Overall objectives include identifying quantitative trait loci (QTL) associated with resistance to major and emerging diseases, developing useful molecular markers and utilizing the genomic tools to incorporate resistance into watermelon cultivars. Major diseases on watermelon include Fusarium wilt, Gummy stem blight, Powdery mildew, Phytophthora fruit rot, Papaya ringspot virus (PRSV) and Cucumber green motile mosaic virus (CGMMV).

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