[黑腹果蝇中的X染色体倒位伴有镶嵌型位置效应：使用克隆DNA片段的分析]
[X-chromosome inversion in Drosophila melanogaster accompanied by a mosaic-type position effect: an analysis using cloned DNA fragments].
作者信息
Alatortsev V E
出版信息
Genetika. 1988 Jan;24(1):23-33.
PMID:2833422
Abstract
DNA fragments carrying the genes affected by position effect variegation in the In(1LR)pn2a chromosome were revealed. In situ hybridizations demonstrate preservation of specific DNA sequences in the polytene chromosome regions containing the inactivated genes. It was shown that both euchromatic-heterochromatic boundaries in the In(1LR)pn2a chromosome contain the mobile element B104 (roo).
摘要
携带受In(1LR)pn2a染色体位置效应斑驳影响基因的DNA片段被揭示。原位杂交表明，在含有失活基因的多线染色体区域中特定DNA序列得以保留。结果显示，In(1LR)pn2a染色体中的常染色质-异染色质边界均含有移动元件B104（roo）。
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