Prezygotic isolation,mating preferences,and the evolution of chromosomal inversions |
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Authors: | Andrius J Dagilis Mark Kirkpatrick |
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Institution: | Department of Integrative Biology, University of Texas, Austin, Texas |
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Abstract: | Chromosomal inversions are frequently implicated in isolating species. Models have shown how inversions can evolve in the context of postmating isolation. Inversions are also frequently associated with mating preferences, a topic that has not been studied theoretically. Here, we show how inversions can spread by capturing a mating preference locus and one or more loci involved with epistatic incompatibilities. Inversions can be established under broad conditions ranging from near panmixis to nearly complete speciation. These results provide a hypothesis to explain the growing number of examples of inversions associated with premating isolating mechanisms. |
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Keywords: | Chromosomal evolution inversions mating preference models and simulations |
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