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导致黑腹果蝇雄性交换的因素。

Elements causing male crossing over in Drosophila melanogaster.

作者信息

Slatko B E, Hiraizumi Y

出版信息

Genetics. 1975 Oct;81(2):313-24. doi: 10.1093/genetics/81.2.313.

Abstract

A second chromosome line of Drosophila melanogaster (Symbol: T-007) has previously been shown to be responsible for the induction of male recombination. In the present investigation, the genetic elements responsible for this phenomenon have been partially identified and mapped. A major element (Symbol: Mr, for Male recombination) locates on the second chromosome between the pr (2L-54.4) and c (2R-75.5) loci and is responsible for the large majority of male recombination. In addition, there appear to be "secondary elements" present which have the ability to induce male recombination in much reduced frequencies and which are diluted out through successive back-cross generations when Mr is removed by recombination. The possible nature of these "secondary elements" is discussed.

摘要

黑腹果蝇的第二条染色体品系(符号:T - 007)先前已被证明可诱导雄性重组。在本研究中,已部分鉴定并定位了导致这一现象的遗传元件。一个主要元件(符号:Mr,代表雄性重组)位于第二条染色体上pr(2L - 54.4)和c(2R - 75.5)基因座之间,它导致了绝大多数的雄性重组。此外,似乎还存在“次要元件”,它们诱导雄性重组的频率要低得多,并且当通过重组去除Mr时,这些次要元件会在连续的回交世代中被稀释掉。本文讨论了这些“次要元件”可能的性质。

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