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Unlocking the genetic diversity of Creole wheats

Author: Vikram, P.
Author: Franco-Barrera, J.
Author: Burgueño, J.
Author: Huihui Li
Author: Sehgal, D.
Author: Saint Pierre, C.
Author: Ortiz, C.
Author: Sneller, C.
Author: Tattaris, M.
Author: Guzman, C.
Author: Sansaloni, C.P.
Author: Fuentes Dávila, G.
Author: Reynolds, M.P.
Author: Sonder, K.
Author: Singh, P.K.
Author: Payne, T.S.
Author: Wenzl, P.
Author: Sharma, A.R.
Author: Bains, N.
Author: Gyanendra Pratap Singh
Author: Crossa, J.
Author: Sukhwinder-Singh
Year: 2016
Abstract: Climate change and slow yield gains pose a major threat to global wheat production. Underutilized genetic resources including landraces and wild relatives are key elements for developing high-yielding and climate-resilient wheat varieties. Landraces introduced into Mexico from Europe, also known as Creole wheats, are adapted to a wide range of climatic regimes and represent a unique genetic resource. Eight thousand four hundred and sixteen wheat landraces representing all dimensions of Mexico were characterized through genotyping-by-sequencing technology. Results revealed sub-groups adapted to specific environments of Mexico. Broadly, accessions from north and south of Mexico showed considerable genetic differentiation. However, a large percentage of landrace accessions were genetically very close, although belonged to different regions most likely due to the recent (nearly five centuries before) introduction of wheat in Mexico. Some of the groups adapted to extreme environments and accumulated high number of rare alleles. Core reference sets were assembled simultaneously using multiple variables, capturing 89% of the rare alleles present in the complete set. Genetic information about Mexican wheat landraces and core reference set can be effectively utilized in next generation wheat varietal improvement.
Format: PDF
Language: English
Publisher: Nuture Publishing Group
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Type: Article
Place of Publication: London
Issue: art. 23092
Volume: 6
DOI: 10.1038/srep23092
Country of Focus: MEXICO
Country of Focus: SOUTH OF MEXICO
Agrovoc: WHEAT
Related Datasets:
Journal: Scientific Reports

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  • Genetic Resources
    Genetic Resources including germplasm collections, wild relatives, genotyping, genomics, and IP

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