Discovery and classification of ecological diversity in the bacterial world: the role of DNA sequence data
Discovery and classification of ecological diversity in the bacterial world: the role of DNA sequence data
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DOI：
10.1099/00207713-47-4-1145
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发表时间：
1997-10-01
期刊：
影响因子：
--
通讯作者：
Cohan, FM
中科院分区：
文献类型：
--
作者：
Palys, T;Nakamura, LK;Cohan, FM
所有的生物体都根据基因序列的相似性，分成了由密切相关的个体组成的离散群。进化遗传学理论预测，在细菌世界中，每个序列相似性簇应该对应于生态上不同的种群。事实上，对蛋白质编码基因序列多样性的调查表明，序列簇与生态种群相对应。未来的人口调查的蛋白质编码基因序列可以预期披露许多以前未知的生态种群的细菌。蛋白质编码基因的序列相似性聚类被推荐作为划分分类群的主要标准。
All living organisms fall into discrete clusters of closely related individuals on the basis of gene sequence similarity. Evolutionary genetic theory predicts that in the bacterial world, each sequence similarity cluster should correspond to an ecologically distinct population. Indeed, surveys of sequence diversity in protein-coding genes show that sequence clusters correspond to ecological populations. Future population surveys of protein-coding gene sequences can be expected to disclose many previously unknown ecological populations of bacteria. Sequence similarity clustering in protein-coding genes is recommended as a primary criterion for demarcating taxa.