Distribution of MWG699 polymorphism in Spanish European barleys
Autor: | Ernesto Igartua, Francisco J. Ciudad, Ana M. Casas, Samia Yahiaoui |
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Rok vydání: | 2005 |
Předmět: | |
Zdroj: | Digital.CSIC. Repositorio Institucional del CSIC instname |
ISSN: | 0831-2796 |
Popis: | The STS marker MWG699/TaqI is closely linked to the vrs1 locus and has been proposed as a marker of domestication in barley. This study included 257 cultivated barleys of both two- and six-rowed varieties, mainly from the western Mediterranean region. These included many landraces from the Spanish barley core collection, Moroccan landraces, and a set of accessions from other European countries. Restriction analysis of amplified DNA revealed three alleles, as previously described. Most of the two-rowed entries had the same allele, type K. Six-rowed entries showed both types A and D. Indeed, type D was widespread among Spanish landraces and commercial varieties from central Europe. It was also found in some two-rowed landraces originating from Spain and Morocco. Barleys with the D haplotype were predominantly winter types, whereas the A haplotype was evenly distributed among spring and winter types. These results support the existence of two different genetic sources among six-rowed Spanish landraces. This research was supported by INIA (Project RTA01-088-C3) and by the European Regional Development Fund. |
Databáze: | OpenAIRE |
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