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Identification of QTL controlling domestication-related traits in cowpea (Vigna unguiculata L. Walp)

Metadata Updated: June 25, 2024

Cowpea (Vigna unguiculata L. Walp) is a warm-season legume with a genetically diverse gene-pool composed of wild and cultivated forms. Cowpea domestication involved considerable phenotypic changes from the wild progenitor, including reduction of pod shattering, increased organ size, and changes in flowering time. Little is known about the genetic basis underlying these changes. In this study, 215 recombinant inbred lines derived from a cross between a cultivated and a wild cowpea accession were used to evaluate nine domestication-related traits (pod shattering, peduncle length, flower color, days to flowering, 100-seed weight, pod length, leaf length, leaf width and seed number per pod). A high-density genetic map containing 17,739 single nucleotide polymorphisms was constructed and used to identify 16 quantitative trait loci (QTL) for these nine traits. Based on annotations of the cowpea reference genome, genes within these regions are reported. Four regions with clusters of QTL were identified, including one on chromosome 8 related to increased organ size. This study provides new knowledge of the genomic regions controlling domestication-related traits in cowpea as well as candidate genes underlying those QTL. This information can help to exploit wild relatives in cowpea breeding programs.

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Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

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Metadata Created Date January 28, 2023
Metadata Updated Date June 25, 2024

Metadata Source

Harvested from USAID JSON

Additional Metadata

Resource Type Dataset
Metadata Created Date January 28, 2023
Metadata Updated Date June 25, 2024
Data First Published 2019-02-21
Data Last Modified 2024-06-25
Category Agriculture
Public Access Level public
Bureau Code 184:15
Metadata Context
Metadata Catalog ID
Schema Version
Catalog Describedby
Harvest Object Id d695e859-3ecc-46e0-80ad-c7850795d03e
Harvest Source Id 0aeddf52-9cb0-4ab6-bc1f-b53172fe5348
Harvest Source Title USAID JSON
Homepage URL
Program Code 184:029
Related Documents,
Source Datajson Identifier True
Source Hash c8b13a5c2d3b64c15c6cfc9a377f1666d1e0a455b20300125c61c7ce07dc084d
Source Schema Version 1.1

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