Speciation in bacteria:: Comparison of the 16S rRNA gene for closely related Enterococcus species

被引：14

作者：

Botina, S. G. ^{[1
]}

Sukhodolets, V. V. ^{[1
]}

机构：

[1] Moscow Genet & Select Ind Microorganisms Inst, Moscow 117545, Russia

来源：

RUSSIAN JOURNAL OF GENETICS | 2006年 / 42卷 / 03期

基金：

俄罗斯基础研究基金会;

关键词：

D O I：

10.1134/S1022795406030033

中图分类号：

Q3 [遗传学];

学科分类号：

071007 ; 090102 ;

摘要：

Sequencing of the 16S rRNA genes from enterococcal strains used as starters suggested the existence of specialized taxa of lactic acid enterococci within the species Enterococcus durans and E. faecium and a new species, E. lactis. Comparisons showed that the 16S rRNA genes of closely related species have the same sets of variable positions with different combinations of nucleotides. The presence of identical combinations of nucleotide substitutions in different species was assumed to result from a transfer of genetic information via gene conversion between different rRNA operons. Such events were presumably associated with speciation in bacteria.

引用

页码：247 / 251

页数：5

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