期刊
TRENDS IN PLANT SCIENCE
卷 17, 期 7, 页码 383-388出版社
ELSEVIER SCIENCE LONDON
DOI: 10.1016/j.tplants.2012.04.004
关键词
-
资金
- Danmark Grundforskningsfond (Danish National Research Foundation)
In plants, the genomic clustering of non-homologous genes for the biosynthesis of chemical defense compounds is an emerging theme. Gene clustering is also observed for polymorphic sexual traits under balancing selection, and examples in plants are self-incompatibility and floral dimorphy. The chemical defense pathways organized as gene clusters are self-contained biosynthetic modules under opposing selection pressures and adaptive polymorphisms, often the presence or absence of a functional pathway, are observed in nature. We propose that these antagonistic selection pressures favor closer physical linkage between beneficially interacting alleles as the resulting reduction in recombination maintains a larger fraction of the fitter genotypes. Gene clusters promote the stable inheritance of functional chemical defense pathways in the dynamic ecological context of natural populations.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据