黑腹果蝇性染色体异染色质中的有丝分裂重组。
Mitotic recombination in the heterochromatin of the sex chromosomes of Drosophila melanogaster.
作者信息
Ripoll P, Garcia-Bellido A
出版信息
Genetics. 1978 Sep;90(1):93-104. doi: 10.1093/genetics/90.1.93.
Abstract
The frequency of spontaneous and X-ray-induced mitotic recombination involving the Y chromosome has been studied in individuals with a marked Y chromosome arm and different XY compound chromosomes. The genotypes used include X chromosomes with different amounts of X heterochromatin and either or both arms of the Y chromosome attached to either side of the centromere. Individuals with two Y chromosomes have also been studied. The results show that the bulk of mitotic recombination takes place between homologous regions.
摘要
在具有明显Y染色体臂和不同XY复合染色体的个体中，研究了涉及Y染色体的自发和X射线诱导的有丝分裂重组频率。所使用的基因型包括具有不同量X异染色质的X染色体，以及Y染色体的一条或两条臂连接在着丝粒两侧的情况。还对具有两条Y染色体的个体进行了研究。结果表明，大部分有丝分裂重组发生在同源区域之间。
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