Genetic Analysis of Hybrid Incompatibilities in Drosophila
Published Online: 15 MAR 2009
Copyright © 2001 John Wiley & Sons, Ltd. All rights reserved.
How to Cite
Gérard, P. R. and Presgraves, D. C. 2009. Genetic Analysis of Hybrid Incompatibilities in Drosophila. eLS. .
- Published Online: 15 MAR 2009
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New species evolve when previously interbreeding populations diverge from one another and, as an incidental byproduct, accumulate reproductive barriers such as hybrid sterility and inviability. Fine-scale genetic analyses show that the X-chromosome plays a special role in the evolution of hybrid sterility, and molecular analyses show that the genes causing hybrid sterility and inviability usually diverge between species by positive natural selection.
- postzygotic isolation;
- Haldane's rule;
- hybrid inviability;
- hybrid sterility