基于细胞学的小麦第 3 组染色体的物理图谱。

Cytologically based physical maps of the group 3 chromosomes of wheat.

机构信息

Department of Plant Pathology, Kansas State University, 4024 Throckmorton Hall, 66506, Manhattan, Kansas, USA.

出版信息

Theor Appl Genet. 1995 Oct;91(5):780-2. doi: 10.1007/BF00220959.

DOI:10.1007/BF00220959

Abstract

Cytologically based physical maps for the group 3 chromosomes of wheat were constructed by mapping 25 Triticum aestivum deletion lines with 29 T. tauschii and T. aestivum RFLP probes. The deletion lines divide chromosomes 3A, 3B, and 3D into 31 discrete intervals, of which 18 were tagged by marker loci. The comparison of the consensus physical map with a consensus RFLP linkage map of the group 3 chromosomes of wheat revealed a fairly even distribution of marker loci on the long arm, and higher recombination in the distal region.

摘要

通过对 25 条小麦 3 组缺失系和 29 条小麦族中间偃麦草和普通小麦的 RFLP 探针进行定位，构建了基于细胞学的小麦 3 组染色体物理图谱。这些缺失系将染色体 3A、3B 和 3D 划分为 31 个不连续的区间，其中 18 个区间被标记基因座标记。将共识物理图谱与小麦族 3 组染色体的共识 RFLP 连锁图谱进行比较，结果表明标记基因座在染色体长臂上的分布相当均匀，而在远缘区的重组率较高。