CucCAP scientists and collaborators provide an extensive review of the literature to systematically document genes for simply inherited traits, QTL for 130 quantitative traits, and develop recommendations for QTL nomenclature in cucumber. In a separate study, researchers conducted comparative analysis on the genetic basis of fruit size and shape variation among cucumber, melon and watermelon, and revealed both conserved and unique genetic architecture of fruit size/shape variation among cucurbit crops.
Featured Articles
The CucCAP website features recently published articles from the four crop teams, (Cucumber, Melon, Squash, and Watermelon) and the Bioinformatics, Breeding, & Genomics group. Integtated crop and disease management activities, articles and reports are also featured.
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.
CucCAP researchers provide information about susceptibility of commercial watermelon varieties to powdery mildew
The seedless watermelon variety Suprema and seeded variety Declaration were relatively less susceptible to powdery mildew. The commercial pollenizers Lion, SP5 and SP6 were resistant across three years of testing.
CucCAP scientists co-led the development of an improved ‘97103’ watermelon genome and resequencing of 414 watermelon accessions
Watermelon has been domesticated for more than 4000 years and modern sweet watermelons have been selected to carry large fruits with crisp, non-bitter and sweet flesh. The CucCAP team has co-led an international effort to generate an improved watermelon ‘97103’ reference genome and resequence 414 accessions from the seven extant Citrullus species.
CucCAP Researchers Map New Source of Resistance to Bacterial Fruit Blotch in Watermelon
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.
CucCAP Pathologists Provide Growers with Tools for Cucurbit Disease Management
CucCAP Vegetable Pathologists provide cucurbit producers with techniques for cucurbit disease management and connect growers with research seeking new solutions for cucurbit diseases.
2018 Cucurbit Genetics Cooperative Annual Report
The Cucurbit Genetics Cooperative (CGC) was established in 1977 to develop and advance the genetics of economically important cucurbits. CucCAP Team members have contributed many articles to the Cucurbit Genetics Cooperative throughout the years. Members of the CucCAP Team contributing to CGC report#41 for 2018 include authors Todd Wehner and Jim McCreight along with editors, Amnon Levi and Linda Wessel-Beaver.
CucCAP scientists release genome of principal American watermelon cultivar and genetically characterize the National Plant Germplasm System watermelon collection
The CucCAP team has developed a high‐quality genome sequence for the principal American dessert watermelon cultivar ‘Charleston Gray’ and genotyped 1365 watermelon PI lines maintained at the U.S. National Plant Germplasm System.
