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每日翻译20190708

已有 367 次阅读 2019-7-8 07:15 |个人分类:翻译作品|系统分类:科研笔记| 复制基因, 纯化选择

#编者信息

熊荣川

明湖实验室

xiongrongchuan@126.com

http://blog.sciencenet.cn/u/Bearjazz


These results imply that, early in their   evolutionary history, duplicate genes tend to be under moderate selective   constraints with the rate of amino acid substitution averaging about 43% of   the neutral expectation. The efficiency of purifying selection subsequently   increases approximately 10-fold, to the point at which only about 5% of amino   acid–changing mutations are able to rise to fixation.

这些结果表明,重复基因在其进化史的早期,往往处于中等选择性的约束下,氨基酸替代率平均约为43%,接近中性预期。纯化选择的效率随后增加约10倍,到只有约5%的改变氨基酸的突变能够被固定的程度。

Lynch, M. The Evolutionary Fate and   Consequences of Duplicate Genes[J]. Science, 2000, 290(5494):1151-1155.

 




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