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首页> 外文期刊>Trends in Plant Science >The evolutionary ecology of cytonuclear interactions in angiosperms
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The evolutionary ecology of cytonuclear interactions in angiosperms

机译:被子植物细胞核相互作用的进化生态学

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摘要

Interactions between cytoplasmic and nuclear genomes have significant evolutionary consequences. In angiosperms, the most common cytonuclear interaction is between mitochondrial genes that disrupt pollen production (cytoplasmic male sterility, CMS) and nuclear genes that restore it (nuclear male fertility restorers, Rf). The outcome of CMS/Rf interactions can depend on whether Rf alleles have negative pleiotropic effects on fitness. Although these fitness costs are often considered to be independent of the ecological context, we argue that the effects of Rf alleles on fitness should be context dependent. Thus, measuring the cost of restoration across a range of environments could help explain geographic and phylogenetic variation in the distribution of Rf alleles and the outcome of CMS/Rf interactions.
机译:细胞质和核基因组之间的相互作用具有重大的进化后果。在被子植物中,最常见的细胞核相互作用是破坏花粉产生的线粒体基因(胞质雄性不育,CMS)和恢复花粉产生的核基因(核雄性生殖恢复剂,Rf)之间。 CMS / Rf相互作用的结果可能取决于Rf等位基因是否对健康产生负面的多效性影响。尽管通常认为这些适应度成本与生态环境无关,但我们认为Rf等位基因对适应度的影响应取决于环境。因此,测量各种环境下的修复成本可以帮助解释Rf等位基因分布的地理和系统发育变异以及CMS / Rf相互作用的结果。

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