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两个亲缘种——拟暗果蝇和毛里求斯果蝇之间性隔离的遗传学

Genetics of sexual isolation between two sibling species, Drosophila simulans and Drosophila mauritiana.

作者信息

Coyne J A

机构信息

Department of Ecology and Evolution, University of Chicago, IL 60637.

出版信息

Proc Natl Acad Sci U S A. 1989 Jul;86(14):5464-8. doi: 10.1073/pnas.86.14.5464.

Abstract

Drosophila simulans and Drosophila mauritiana are sibling species that show substantial sexual isolation in one of their two reciprocal hybridizations. Genetic analysis reveals that in females this isolation is caused by at least one recessive gene on each autosome, while the X chromosome has little or no effect. Our results, combined with those of previous studies, show that in Drosophila the genetics of sexual isolation differs from that of postzygotic reproductive isolation, which invariably involves large effects of the X chromosome.

摘要

拟果蝇和毛里求斯果蝇是姐妹物种,在它们的两次相互杂交中的一次中表现出显著的性隔离。遗传分析表明,在雌性中,这种隔离是由每个常染色体上至少一个隐性基因引起的,而X染色体几乎没有影响或没有影响。我们的结果与先前研究的结果相结合,表明在果蝇中,性隔离的遗传学与合子后生殖隔离的遗传学不同,后者总是涉及X染色体的重大影响。

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