2020 ASHS Annual Virtual Conference

Presentations from CucCAP researchers address cucumber breeding, melon pathogens, and watermelon production. Phenotypic Analysis of the U.S. Cucumber PI Core Collection for Fruit Morphological Diversity Ying-Chen Lin, Yiqun Weng, University of Wisconsin and Rebecca Grumet, Michigan State University Continue Reading QTL-Seq of Young Fruit Resistance to Phytophthora Capsici in Cucumber Ying-Chen Lin and Rebecca Grumet, […]

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Genomics and Bioinformatics Team | 2020 CucCAP Progress Report

Cucurbit Genomic Team members include Zhangjun Fei (Boyce Thompson Institute), Umesh Reddy (West Virginia St. Univ.), Amnon Levi (USDA, ARS), Yiqun Weng (USDA, ARS), Michael Mazourek (Cornell University), Pat Wechter (USDA, ARS), and Rebecca Grumet (Michigan State University). In closely working with Cornell Genomic Diversity Facilty, the team has set up the genotyping-by-sequencing (GBS) platform for the cucurbit species and have established a GBS data analysis pipeline based on TASSEL-GBS.

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CucCAP scientists uncover the genetic basis of unique horticultural traits in the multi-disease resistant cucumber germplasm line WI2757

CucCAP researchers conducted molecular mapping using populations involving WI2757, and uncovered a large paracentric inversion of about 10 megabases in length on cucumber chromosome 1 of WI2757 and found that inversion region harbors genes or quantitative trait loci for fruit length, diameter, fruit shape, fruit number, and flowering time.

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CucCAP scientists provide inventory of genes and QTL for cucumber breeding and genetics community

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.

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