Genetic constraints on the evolution of mate recognition under natural selection
Genetic constraints on the evolution of mate recognition under natural selection
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DOI：
10.1086/345783
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发表时间：
2003-02-01
影响因子：
2.9
通讯作者：
Higgie, M
中科院分区：
文献类型：
--
作者：
Blows, MW;Higgie, M
实地种群的锯缘果蝇表现出生殖特征位移角质层碳氢化合物（CHCs）时，同域与果蝇birchii。我们以前已经表明，自然发生的模式的生殖字符位移可以通过暴露领域异地种群的D。serrata与D. Birchii。在这里，我们测试了是否重复进化的生殖特征置换在自然和实验种群的CHCs的进化的遗传约束的结果。本文还测定了中国仓鼠种群CHCs的遗传方差-协方差矩阵。serrata在D. Birchii在田间和实验条件下。在野外和实验同域条件下对配偶识别的自然选择增加了CHCs的遗传变异，这与基于稀有等位基因的选择反应一致。在自然群体和实验群体中，G特征结构与表型分歧（D）矩阵的特征结构之间存在密切联系，表明G矩阵特征结构可能决定了在配偶识别强化过程中生殖性状位移的进化方向。
Field populations of Drosophila serrata display reproductive character displacement in cuticular hydrocarbons (CHCs) when sympatric with Drosophila birchii. We have previously shown that the naturally occurring pattern of reproductive character displacement can be experimentally replicated by exposing field allopatric populations of D. serrata to experimental sympatry with D. birchii. Here, we tested whether the repeated evolution of reproductive character displacement in natural and experimental populations was a consequence of genetic constraints on the evolution of CHCs. The genetic variance-covariance (G) matrices for CHCs were determined for populations of D. serrata that had evolved in either the presence or absence of D. birchii under field and experimental conditions. Natural selection on mate recognition under both field and experimental sympatric conditions increased the genetic variance in CHCs consistent with a response to selection based on rare alleles. A close association between G eigenstructure and the eigenstructure of the phenotypic divergence (D) matrix in natural and experimental populations suggested that G matrix eigenstructure may have determined the direction in which reproductive character displacement evolved during the reinforcement of mate recognition.