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首页> 外文期刊>Trends in Plant Science >Whole-Genome Duplication and Plant Macroevolution
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Whole-Genome Duplication and Plant Macroevolution

机译:全基因组重复和植物宏观调

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摘要

Whole-genome duplication (WGD) is characteristic of almost all fundamental lineages of land plants. Unfortunately, the timings of WGD events are loosely constrained and hypotheses of evolutionary consequence are poorly formulated, making them difficult to test. Using examples from across the plant kingdom, we show that estimates of timing can be improved through the application of molecular clock methodology to multigene datasets. Further, we show that phenotypic change can be quantified in morphospaces and that relative phenotypic disparity can be compared in the light of WGD. Together, these approaches facilitate tests of hypotheses on the role of WGD in plant evolution, underscoring the potential of plants as a model system for investigating the role WGD in macroevolution.
机译:全基因组复制(WGD)是陆地植物几乎所有基本谱系的特征。不幸的是,WGD事件的时间安排受到了松散的限制,进化结果的假设也没有很好的表述,这使得它们很难测试。利用植物界的例子,我们表明,通过将分子钟方法应用于多基因数据集,可以改进对时间的估计。此外,我们还表明,表型变化可以在形态空间中量化,相对表型差异可以根据WGD进行比较。总之,这些方法有助于对WGD在植物进化中作用的假设进行检验,强调了植物作为研究WGD在宏观进化中作用的模型系统的潜力。

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