Years of selection for desirable fruit quality traits in dessert watermelon (Citrullus lanatus) has resulted in a narrow genetic base in modern cultivars. Development of novel genomic and genetic resources offers great potential to expand genetic diversity and improve important traits in watermelon. The CucCAP team has developed a high‐quality genome sequence for the principal […]
Cucumber green mottle mosaic virus (CGMMV) is an emerging virus in the U.S. that has caused serious disease outbreaks to watermelon and several other cucurbit crops around the world. Although CGMMV is seed-borne, the mechanism of its transmission from seed to seedling was not fully understood. With increasing activities of off-shore hybrid seed production and […]
Fusarium wilt race 1, caused by the soil-borne fungus Fusarium oxysporum Schlechtend.: Fr. f. sp. niveum (E.F. Sm.) W.C. Snyder & H.N. Hans (Fon), is a major disease of watermelon (Citrullus lanatus) in the United States and throughout the world. While Fusarium wilt race 1 resistance from chromosome 1 has been incorporated into several watermelon […]
Members of the CucCAP extension team [Dr. Mary Hausbeck, Michigan State University; Dr. Angela Linares, University of Puerto Rico at Mayaguez; Dr. Lina Quesada-Ocampo, North Carolina State University; Dr. Chris Smart, Cornell University] have developed 16 extension fact sheets to support stakeholders and impact cucurbit production in each region. The fact sheets provide useful information […]
During the past several years, large amounts of genomic, transcriptomic and genetic data have been accumulated for cucurbits. These data have been extensively used to facilitate cucurbit research and breeding. However, efficient access, and ability to mine and analyze these large-scale datasets pose challenges to researchers, especially those with limited bioinformatics expertise. Therefore, the CucCAP […]
Germplasm collections (a.k.a. gene banks) are a crucial resource to conserve natural genetic diversity and provide a source of novel traits for crop improvement such as disease and pest resistance, increased yield, and improved fruit quality. Optimal collection, preservation and utilization of these resources depends upon knowledge of the genetic variation present within the collection. […]
Cucurbitaceae is an international conference of cucurbit scientists held every four years in North America. Cucurbitaceae 2018 was hosted by UC Davis in Davis, California. CucCAP was well represented with 14 Co-PIs and 28 lab members in attendance presenting five invited keynote talks, an additional 12 invited talks, and 19 posters.
Development of varieties with multiple disease resistances is always an important goal for plant breeders. Dr. Yiqun Weng’s Lab at the Vegetable Crops Research Unit in USDA-ARS, Madison, Wisconsin identified the STAYGREEN gene that is responsible for the PI 197087-derived triple-disease resistances.