Construction of a genetic map of barley (Hordeum vulgare L.) cross 'Azumamugi' x 'Kanto Nakate Gold' using a simple and efficient amplified fragment-length polymorphism system.
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' x '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.
Mano
Y
Y
National Institute of Agrobiological Resources, Tsukuba, Ibaraki, Japan. mano@ngri.affrc.go.jp
Kawasaki
S
S
Takaiwa
F
F
Komatsuda
T
T
D002874:Chromosome Mapping / Q000379:methods; D003433:Crosses, Genetic; D018744:DNA, Plant / Q000235:genetics; D005819:Genetic Markers; D001467:Hordeum / Q000235:genetics*; D011110:Polymorphism, Genetic; D016324:Sequence Tagged Sites
D018744:DNA, Plant; D005819:Genetic Markers