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. 1984 Jul;81(14):4444–4447. doi: 10.1073/pnas.81.14.4444

Genetic basis of male sterility in hybrids between two closely related species of Drosophila.

J A Coyne
PMCID: PMC345606  PMID: 6589604

Abstract

Drosophila simulans and Drosophila mauritiana are closely related sibling species, the former cosmopolitan and the latter restricted to the small oceanic island of Mauritius. Genetic analysis of male sterility in hybrids between these species shows that at least five loci (one on each chromosome arm) are responsible for this reproductive isolation. This is the most loci that could have been detected with the techniques used and implies that the true genetic divergence for sterility is even greater. The effects of chromosome segments on the character are roughly additive, with the X-linked segment making the largest contribution to sterility. The large effect of X chromosomes on male-limited reproductive isolation and the frequent limitation of hybrid sterility to males may be attributable to fertility interactions between X and Y chromosomes. These results parallel what has been found in other Drosophila species and relate to recent theories of how reproductive isolation evolves in small founder populations.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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