As a result of many years of domestication, modern watermelon varieties have overall a small root system and are highly susceptible to a wide range of soil-borne diseases. In a recent study, CucCAP researchers in Charleston, SC (USDA, ARS, U.S. Vegetable Laboratory) used a digital imaging technology to evaluate the root systems in 335 watermelon […]
CucCAP researchers identified a major QTL associated with sulfur tolerance in a melon mapping population. Genetic markers were developed for the major QTL and can be used to incorporate sulfur tolerance in melon breeding programs.
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: […]
Team members: Jim McCreight (USDA, ARS), Shaker Kousik (USDA, ARS), Michael Mazourek (Cornell Univ.), Pat Wechter (USDA, ARS), Bill Wintermantel (USDA, ARS) Develop common genomic approaches and tools for cucurbits Perform GBS analysis of PI collections, establish core populations, provide community resource for genome wide association studies (GWAS) GBS of Melon, establish molecular-informed core populations […]
Vegetable & Specialty Crop News reports on crop and disease management information from UGA: Watermelon plants can become infected in multiple ways. The pathogen can produce spores that survive in the soil, be seedborne and be introduced to fields where watermelons have never been grown. View UGA Cooperative Extension Bulletin 1485 • Fusarium Wilt of […]
PAG brings together over 3,000 leading genetic scientists and researchers in plant and animal research, and over 130 exhibits, 150 workshops, 1100 posters and over 1800 abstracts.
CucCAP participants at PAG XXVIII include cucurbit breeders and genomic scientists. The cucurbit session organizers are Amnon Levi and Patrick Wechter. Presentations by CucCAP authors include: QTL and Transcrptomic Analyses Implicate Cuticule Transcription Factor Shine As a Source of Natural Variation for Epidermal Traits in Cucumber: Zhangjun Fei, Rebecca Grumet, Ben N. Mansfeld, and Yiqun Weng De Novo Genome Assembly of Sweet […]
Bacterial fruit blotch (BFB) of cucurbits caused by Acidovorax citrulli has the potential to devastate production of watermelon and other cucurbits. Despite decades of research, no watermelon germplasm has been found with immunity, and only a few sources with various levels of resistance have been identified.