Schierup Mikkel Heide, Vekemans Xavier
Bioinformatics Research Center and Department of Biology, University of Aarhus, Hoegh Guldbergs Gade 10, 8000 Aarhus C, Denmark.
Curr Opin Plant Biol. 2008 Apr;11(2):116-22. doi: 10.1016/j.pbi.2008.01.003. Epub 2008 Mar 7.
Frequency-dependent selection at plant self-incompatibility systems is inherent and well understood theoretically. A self-incompatibility locus leads to a strong peak of diversity in the genome, to a unique distribution of diversity across the species and possibly to increased introgression between closely related species. We review recent empirical studies demonstrating these features and relate the empirical findings to theoretical predictions. We show how these features are being exploited in searches for other genes under multi-allelic balancing selection and for inference on recent breakdown of self-incompatibility.
植物自交不亲和系统中的频率依赖选择是内在的，并且在理论上已得到充分理解。一个自交不亲和位点会导致基因组中出现强烈的多样性峰值，产生物种间独特的多样性分布，并可能增加近缘物种之间的基因渗入。我们回顾了最近的实证研究，这些研究证明了这些特征，并将实证结果与理论预测联系起来。我们展示了这些特征如何被用于寻找多等位基因平衡选择下的其他基因，以及推断自交不亲和的近期崩溃情况。
