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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:全基因组重复(WGD)是几乎所有土地植物基本谱系的特征。 不幸的是,WGD事件的时间是松散限制的,并且对进化后果的假设具有不佳的制定,使它们难以测试。 使用来自植物王国的实例,我们表明通过将分子钟方法应用于多烯数据集来改善定时估计。 此外,我们表明可以在形态间隙中量化表型变化,并且可以根据WGD的光进行比较相对表型差异。 这些方法在一起,促进了对WGD在植物演进中的作用的假设的测试,强调了植物的潜力作为调查宏观调查WGD的模型系统。

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