Year: 2016
Type: article
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.
Source: Scientific Reports
DOI: 10.1038/srep23092
Authors: Prashant Vikram, Jorge Franco, Juan Burgueño-Ferreira, Huihui Li, Deepmala Sehgal, Carolina Saint Pierre, Cynthia Ortiz, Clay Sneller, Maria Tattaris, Carlos Guzman, Carolina Paola Sansaloni, Marc Ellis, Guillermo Fuentes-Davila, Matthew Reynolds, Kai Sonder, Pawan Singh, Thomas Payne, Peter Wenzl, Achla Sharma, Navtej Singh Bains, Gyanendra Pratap Singh, José Crossa, Sukhwinder Singh
Institutions: Centro Internacional de Mejoramiento de Maíz Y Trigo, Universidad de la República de Uruguay, Chinese Academy of Agricultural Sciences, Institute of Crop Sciences, The Ohio State University, Instituto Nacional de Investigaciones Forestales Agrícolas y Pecuarias, Punjab Agricultural University, Indian Agricultural Research Institute
Language: English
Subfield: Plant Science
Domain: Life Sciences
SDG: Zero hunger
Open Access status: gold
Estimated APC paid: $2,690
OpenAlex ID: W2298040436