Physical molecular maps of wheat chromosomes

被引：22

作者：

Goyal A. ^{[1
]}

Bandopadhyay R. ^{[1
]}

Sourdille P. ^{[2
]}

Endo T.R. ^{[3
]}

Balyan H.S. ^{[1
]}

Gupta P.K. ^{[1
]}

机构：

[1] Molecular Biology Laboratory, Department of Genetics and Plant Breeding, Ch. Charan Singh University, Meerut

[2] UMR, INRA, UBP Amèlioration et Santè des Plantes, 63039 Clermont-Ferrand

[3] Graduate School of Agriculture, Kyoto University

来源：

Functional & Integrative Genomics | 2005年 / 5卷 / 4期

关键词：

Deletion lines; Genetic maps; Physical maps; Simple sequence repeats (SSRs);

D O I：

10.1007/s10142-005-0146-1

中图分类号：

学科分类号：

摘要：

In bread wheat, a set of 527 simple sequence repeats (SSRs) were tried on 164 deletion lines, leading to a successful mapping of 270 SSRs on 313 loci covering all 21 chromosomes. A maximum of 119 loci (38%) were located on B subgenome, and a minimum of 90 loci (29%) mapped on D subgenome. Similarly, homoeologous group 7 carried a maximum of 61 loci (19%), and group 4 carried a minimum of 22 loci (7%). Of the cited 270 SSRs, 39 had multiple loci, but only eight of these detected homoeologous loci. Linear order of loci in physical maps largely corresponded with those in the genetic maps. Apparently, distances between each of only 26 pairs of loci significantly differed from the corresponding distances on genetic maps. Some loci, which were genetically mapped close to the centromere, were physically located distally, while other loci that were mapped distally in the genetic maps were located in the proximal bins in the physical maps. This suggested that although the linear order of the loci was largely conserved, variation does exist between genetic and physical distances. © Springer-Verlag 2005.

引用

页码：260 / 263

页数：3

共 29 条

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