Watermelon Team | 2020 CucCAP Progress Report

Overall objectives: 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: Fusarium wilt, Gummy stem blight, Powdery mildew, Phytophthora fruit rot, Papaya ringspot virus (PRSV) and Cucumber green motile mosaic virus (CGMMV). Team Members: […]

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CucCAP #1 Watermelon Publications and Presentations

Breeding, Genetics, and Genomics Publications Bertucci, M.B, K.M. Jennings, D.W. Monks, J.R. Schultheis, F.J. Louws, and D.L. Jordan. 2019. Interference of (Amaranthus palmeri) density in grafted and nongrafted watermelon. Weed Sci. 67(2):229-238. Branham, S.E., A. Levi, M.W. Farnham, and W.P. Wechter. 2016. A GBS‑SNP‑based linkage map and quantitative trait loci (QTL) associated with resistance to Fusarium oxysporum f. sp. Niveum race 2 […]

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CucCAP researchers identify genetic loci conferring resistance to Fusarium wilt race 2 and Papaya ring-spot virus-watermelon strain (PRSV-W)

Multiple disease screens of the USDA watermelon germplasm collection have highlighted the value of wild type watermelons as a source for enhancing resistance to diseases in modern watermelon cultivars. CucCAP researchers collaborated with Sakata Seed America on generating genetic populations and on conducting genetic analyses to identify genetic loci that confer resistance to Fusarium wilt and papaya ring-spot virus.

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CucCAP researchers provide information about susceptibility of commercial watermelon varieties to powdery mildew

The occurrence of powdery mildew of watermelon has significantly increased in recent years. While the majority of the watermelon varieties evaluated in South Carolina were susceptible to powdery mildew, the seedless variety Suprema and seeded variety Declaration were relatively less susceptible and the commercial pollenizers Lion, SP5 and SP6 were resistant across three years of testing. Because of the frequent […]

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