Construction of a genetic map of barley (Hordeum vulgareL.) cross 'Azumamugi' × 'Kanto Nakate Gold' using a simple and efficient amplified fragment-length polymorphism system
- 1 April 2001
- journal article
- Published by Canadian Science Publishing in Genome
- Vol. 44 (2) , 284-292
- https://doi.org/10.1139/g01-002
Abstract
We have devised a simple and efficient amplified fragment-length polymorphism (AFLP) system consisting of small slab gels, a discontinuous buffer system, and silver staining. Using this system, a single worker developed a barley map with 227 polymorphic fragments in 2 months. As a mapping population, 99 recombinant inbred lines of barley cultivars 'Azumamugi' × 'Kanto Nakate Gold' were used. Most of the 227 AFLP fragments showed a Mendelian segregation ratio of 1:1, and all were assigned to the seven barley chromosomes. Thus, these fragments are useful as molecular markers. They were integrated with 40 previously characterized sequence-tagged sites, 3 isozymes, and 2 morphological markers to construct an integrated map. The resulting map covered 925.6 cM with 272 markers (detecting 150 loci) at an average interval of 6.5 cM/locus. This system greatly simplifies map construction.Key words: amplified fragment length polymorphism (AFLP), Hordeum vulgare, linkage map, recombinant inbred line (RIL), sequence-tagged site (STS).Keywords
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