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    • The genome of cowpea (Vigna unguiculata [L.] Walp.)

    Metadata Updated: June 25, 2024

    Cowpea (Vigna unguiculata [L.] Walp.) is a major crop for worldwide food and nutritional security, especially in sub-Saharan Africa, that is resilient to hot and drought-prone environments. An assembly of the single-haplotype inbred genome of cowpea IT97K-499-35 was developed by exploiting the synergies between single-molecule real-time sequencing, optical and genetic mapping, and an assembly reconciliation algorithm. A total of 519 Mb is included in the assembled sequences. Nearly half of the assembled sequence is composed of repetitive elements, which are enriched within recombination-poor pericentromeric regions. A comparative analysis of these elements suggests that genome size differences between Vigna species are mainly attributable to changes in the amount of Gypsy retrotransposons. Conversely, genes are more abundant in more distal, high-recombination regions of the chromosomes; there appears to be more duplication of genes within the NBS-LRR and the SAUR-like auxin superfamilies compared with other warm-season legumes that have been sequenced.

    A surprising outcome is the identification of an inversion of 4.2 Mb among landraces and cultivars, which includes a gene that has been associated in other plants with interactions with the parasitic weed Striga gesnerioides. The genome sequence facilitated the identification of a putative syntelog for multiple organ gigantism in legumes. A revised numbering system has been adopted for cowpea chromosomes based on synteny with common bean (Phaseolus vulgaris). An estimate of nuclear genome size of 640.6 Mbp based on cytometry is presented.

    Access & Use Information

    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.

    Downloads & Resources

    References

    https://data.usaid.gov/api/views/d6z4-kc8f/files/95898d83-d604-4506-bf9d-9bd8f07bfba2

    Dates

    Metadata Created Date March 22, 2023
    Metadata Updated Date June 25, 2024

    Metadata Source

    Harvested from USAID JSON

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date March 22, 2023
    Metadata Updated Date June 25, 2024
    Publisher data.usaid.gov
    Maintainer
    Identifier https://data.usaid.gov/api/views/d6z4-kc8f
    Data First Published 2019-12-20
    Data Last Modified 2024-06-25
    Category Agriculture
    Public Access Level public
    Bureau Code 184:15
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
    Metadata Catalog ID https://data.usaid.gov/data.json
    Schema Version https://project-open-data.cio.gov/v1.1/schema
    Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
    Harvest Object Id 545fb614-dfa3-489a-b3a7-2323efacac19
    Harvest Source Id 0aeddf52-9cb0-4ab6-bc1f-b53172fe5348
    Harvest Source Title USAID JSON
    Homepage URL https://data.usaid.gov/d/d6z4-kc8f
    Program Code 184:029
    Related Documents https://data.usaid.gov/api/views/d6z4-kc8f/files/95898d83-d604-4506-bf9d-9bd8f07bfba2
    Source Datajson Identifier True
    Source Hash d9951715c78762e407b242fb88b55f1560638a79894abbc932b9d15cb87f128b
    Source Schema Version 1.1

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