Interactions among quantitative traits in the course of sympatric speciation

A. Kondrashov, F. Kondrashov, Nature 400 (1999) 351–354.

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Journal Article | Published
Author
Kondrashov, Alexey S; Kondrashov, FyodorIST Austria
Abstract
Sympatric speciation, the origin of two or more species from a single local population, has almost certainly been involved in formation of several species flocks, and may be fairly common in nature. The most straightforward scenario for sympatric speciation requires disruptive selection favouring two substantially different phenotypes, and consists of the evolution of reproductive isolation between them followed by the elimination of all intermediate phenotypes. Here we use the hypergeometric phenotypic model to show that sympatric speciation is possible even when fitness and mate choice depend on different quantitative traits, so that speciation must involve formation of covariance between these traits. The increase in the number of variable loci affecting fitness facilitates sympatric speciation, whereas the increase in the number of variable loci affecting mate choice has the opposite effect. These predictions may enable more cases of sympatric speciation to be identified.
Publishing Year
Date Published
1999-07-01
Journal Title
Nature
Volume
400
Issue
6742
Page
351 - 354
IST-REx-ID
883

Cite this

Kondrashov A, Kondrashov F. Interactions among quantitative traits in the course of sympatric speciation. Nature. 1999;400(6742):351-354. doi:10.1038/22514
Kondrashov, A., & Kondrashov, F. (1999). Interactions among quantitative traits in the course of sympatric speciation. Nature, 400(6742), 351–354. https://doi.org/10.1038/22514
Kondrashov, Alexey, and Fyodor Kondrashov. “Interactions among Quantitative Traits in the Course of Sympatric Speciation.” Nature 400, no. 6742 (1999): 351–54. https://doi.org/10.1038/22514.
A. Kondrashov and F. Kondrashov, “Interactions among quantitative traits in the course of sympatric speciation,” Nature, vol. 400, no. 6742, pp. 351–354, 1999.
Kondrashov A, Kondrashov F. 1999. Interactions among quantitative traits in the course of sympatric speciation. Nature. 400(6742), 351–354.
Kondrashov, Alexey, and Fyodor Kondrashov. “Interactions among Quantitative Traits in the Course of Sympatric Speciation.” Nature, vol. 400, no. 6742, Nature Publishing Group, 1999, pp. 351–54, doi:10.1038/22514.

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