Inferring evolutionary dynamics of mutation rates through the lens of mutation spectrum variation.

Inferring evolutionary dynamics of mutation rates through the lens of mutation spectrum variation.
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DOI:
10.1016/j.gde.2020.05.024
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发表时间:
2020-06
影响因子:
4
通讯作者:
Harris K
Harris K
中科院分区:
生物学2区
文献类型:
--
作者:
Carlson J;DeWitt WS;Harris K

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在遗传信息的传递过程中有许多可能的失败点,这些失败点可以产生可遗传的种系突变。一旦突变从父母传给后代几代人,就很难或不可能确定其根本原因;然而,有时祖先和衍生DNA序列的性质可以提供数百或数千代前发生的遗传变化的机制线索。在这里,我们审查的证据表明,序列背景下的“频谱”的种系诱变已经演变惊人的迅速在人类和其他物种的历史。我们继续讨论可能导致快速突变谱进化的原因。
There are many possible failure points in the transmission of genetic information that can produce heritable germline mutations. Once a mutation has been passed from parents to offspring for several generations, it can be difficult or impossible to identify its root cause; however, sometimes the nature of the ancestral and derived DNA sequences can provide mechanistic clues about a genetic change that happened hundreds or thousands of generations ago. Here, we review evidence that the sequence context “spectrum” of germline mutagenesis has been evolving surprisingly rapidly over the history of humans and other species. We go on to discuss possible causal factors that might underlie rapid mutation spectrum evolution.
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