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    • Cucumber Disease Management
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Wechter Lab @ USDA-ARS

CucCAP researchers develop watermelon breeding lines with broad resistance to Phytophthora capsici

February 1, 2022June 21, 2024 cuccap CucCAP Watermelon Team, Featured Articles

CucCAP researchers developed 5 Phytophthora fruit rot resistant watermelon germplasm lines with high levels of resistance against a broad range of diverse P. capsici isolates collected from across the United States.

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2021 CucCAP Watermelon Team Publications and Presentations

November 7, 2021April 7, 2022 cuccap CucCAP Watermelon Team

Watermelon Breeding, Genetics, Genomics, Pathology, and Disease Management Publications & Presentations

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Melon Team | 2021 Progress Report

November 4, 2021January 12, 2022 cuccap CucCAP Melon Team, Cucurbit Crop & Disease Management Resources

Jim McCreight leads the Melon team. Their objectives are to Map and develop markers for disease resistance in Melon and introgress, pyramid/stack resistances into advanced breeding lines.

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Watermelon Team | 2021 Progress Report

October 29, 2021August 7, 2024 cuccap CucCAP Watermelon Team

View all tables and figures in pages 21 – 28 of the pdf version of this report.

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CucCAP scientists map QTL for resistance to downy mildew in melon

September 1, 2021March 22, 2022 cuccap Featured Articles

CucCAP researchers identified two major and seven minor QTL using a cross between the resistant melon breeding line MR-1 and susceptible cultivar Ananas Yoqne’am.

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Meet the CucCAP Melon Team

April 30, 2021May 25, 2023 cuccap CucCAP Melon Team

The CucCAP melon team is breeding melons for disease resistance to Powdery mildew, Fusarium wilt, and Cucurbit yellow stunting disorder virus.

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Meet the CucCAP Watermelon Team

February 10, 2021April 21, 2021 cuccap CucCAP Watermelon Team

The CucCAP Watermelon team is led by USDA-ARS Research Geneticist Amnon Levi. Co-investigators include Sandra Branham, Cecelia McGregor, Kai-Shu Ling, Shaker Kousik, Umesh Reddy, and Pat Wechter.

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CucCAP researchers identify watermelon root traits to improve tolerance to stress and diseases

September 7, 2020March 22, 2022 cuccap CucCAP Watermelon Team, Featured Articles

In a recent study, CucCAP researchers used a digital imaging technology to evaluate the root systems in 335 watermelon accessions.

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Featured Article

CucCAP scientists use cucumber core collection to map fruit quality traits

The CucCAP core collection, comprised of 388 accessions representing >96% of the genetic diversity for cucumber present in the U.S. National Plant Germplasm System, harbors important sources of disease resistance. As sources of resistance are often present in germplasm with poor fruit quality, scientists from Michigan State University characterized the collection for fifteen fruit quality traits. Genetic associations (QTL) for each trait were identified from genome-wide association studies (GWAS). Many of the genetic locations were in close vicinity to previously identified fruit trait QTL and candidate genes; several novel loci and genes potentially important for these traits were also identified.

For further reading:

Lin YC, Weng Y, Fei Z, Grumet R. 2025. Mining the cucumber core collection: phenotypic and genetic characterization of morphological diversity for fruit quality characteristics. Horticulture Research 12:uhae340.

 

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USDA National Institute of Food and Agriculture U.S. DEPARTMENT OF AGRICULTURE

The Cucurbit Coordinated Agricultural Project (CucCAP) is a USDA-National Institute of Food and Agriculture Specialty Crop Research Initiative grant under award number
2020-51181-32139.

Cooperating Institutions:

Boyce Thompson Institute; Cornell University; Michigan State University; North Carolina State University; Clemson University; University of Puerto Rico; University of Wisconsin; University of Florida; University of Georgia; West Virginia State University; U.S. Department of Agriculture, Agricultural Research Service

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