一粒小麦的3A(m)和5A(m)染色体与小麦同源染色体3A和5A的重组：重组在染色体上的分布
Recombination of chromosomes 3A(m) and 5A(m) of Triticum monococcum with homeologous chromosomes 3A and 5A of wheat: the distribution of recombination across chromosomes.
作者信息
Luo M C, Yang Z L, Kota R S, Dvorák J
机构信息
Department of Agronomy and Range Science, University of California, Davis, California 95616, USA.
出版信息
Genetics. 2000 Mar;154(3):1301-8. doi: 10.1093/genetics/154.3.1301.
Abstract
Recombination of chromosomes 3A(m) and 5A(m) of Triticum monococcum with closely homeologous chromosomes 3A and 5A of T. aestivum was compared with recombination across corresponding homologous chromosome pairs. Differentiation between the homeologues impacted recombination in the proximal regions of the long arms the most and in the distal regions of the long arms the least. It is concluded that this variation principally reflects allocation of multiple crossovers across an arm and positive crossover interference across chromosome arms. Recombination rates between homeologous chromosomes 5A(m) and 5A differed in the opposite sexes.
摘要
将一粒小麦的3A(m)和5A(m)染色体与普通小麦紧密同源的3A和5A染色体进行重组，并与相应同源染色体对之间的重组进行比较。同源染色体之间的差异对长臂近端区域的重组影响最大，对长臂远端区域的重组影响最小。得出的结论是，这种变异主要反映了一条染色体臂上多个交叉的分布以及染色体臂之间的正向交叉干扰。同源染色体5A(m)和5A之间的重组率在不同性别中存在差异。
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