Characterization of Mexican Creole wheat landraces in relation to morphological characteristics and HMW glutenin subunit composition

• Published in: Genetic resources and crop evolution Vol. 57; no. 5; pp. 657 - 665
• Main Authors: Caballero, L, Peña, R. J, Martín, L. M, Alvarez, J. B
• Format: Journal Article
• Language: English
• Published: Dordrecht Dordrecht : Springer Netherlands 01.06.2010; Springer Netherlands; Springer Nature B.V
• Subjects: Agriculture; Biomedical and Life Sciences; Composition; Creole wheat; Gene frequency; Genetic diversity; Genetic resources; genetic variation; Genotypes; Glutenin; HMW-glutenin subunits; Life Sciences; Morphology; Physical characteristics; Plant Genetics and Genomics; Plant Physiology; Plant Sciences; Plant Systematics/Taxonomy/Biogeography; Research Article; Spike-grain morphological traits; Subunit structure; Triticum aestivum; Wheat; Creole wheat; Genetic diversity; HMW-glutenin subunits; Spike-grain morphological traits
• ISSN: 0925-9864; 1573-5109
• DOI: 10.1007/s10722-009-9501-8

One hundred lines derived from 14 wheat landraces collected in Mexico were characterized in relation to spike and grain morphology and HMW-glutenin subunit composition. Up to seven botanical varieties were identified among these materials based in four morphological traits. The remaining nine morphological traits showed wide variation. The allelic variation at the Glu-1 loci was wide, although showed a clear risk of genetic erosion due to the low frequency of some alleles. These genotypes could be used as genetic resources to improve important biotic and abiotic traits as well as to widen genetic diversity controlling the HMW glutenin subunit composition of common wheat.