• Wheat Mexican Landraces Core Sets


    This core set of 1,100 accessions is representative of the approximately 10,000 creole wheat landraces of Mexico currently preserved in CIMMYT’s germplasm bank, which originate from wheat varieties brought to Mexico by Spaniards. . Landrace core set accessions are promising for use in breeding wheat varieties with a broadened genetic base. The core set was selected based on phenotypic traits (heading, maturity, height, etc. under heat, drought and irrigated conditions, as well as grain quality measures), combined with genotypic data using 20,000 DArT-seq markers.

    Product details and features

    1. The list of Mexican wheat landrace core set entries and their complete passport information are available.Link
    2. Genotypic data for the landrace core set are available in Dataverse for downloading via http://hdl.handle.net/11529/10013
    3. Their genetic diversity profile in form of principal component analysis is available
    4. Grain yield and yield related trait data of Mexican core set under drought stress.Link
    5. Grain yield and yield related trait data of Mexican core set under heat stress.Link


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  • Comments

    The Mexican and Iranian wheat landrace core sets are currently in demand by researchers seeking sources of resistance to various biotic and abiotic stresses for use in their wheat improvement programs. Target environments: heat and drought prone stress environments. Target traits: secondary traits associated with heat and drought stress tolerance.

    Availability

    Currently available: Seeds of these entries are available from CIMMYT’s germplasm bank.

     



    Primary Users

    Wheat breeders, physiologists, geneticists and molecular biologists interested in investigating physiological mechanisms of biotic/abiotic stress tolerance as well as researchers pursuing gene discovery for various target traits in wheat such as biomass increase, grain size, grain weight, spike length, tiller number, culm strength, or grain filling period under heat and drought stresses.

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