Comparison of the small 16S to 23S intergenic spacer region (ISR) of the rRNA operons of some Escherichia coli strains of the ECOR collection and E-coli K-12

被引：41

作者：

GarciaMartinez, J ^{[1
]}

MartinezMurcia, A ^{[1
]}

Anton, AI ^{[1
]}

RodriguezValera, F ^{[1
]}

机构：

[1] UNIV ALICANTE, DEPT GENET & MICROBIOL, ALICANTE 03080, SPAIN

来源：

JOURNAL OF BACTERIOLOGY | 1996年 / 178卷 / 21期

关键词：

D O I：

10.1128/jb.178.21.6374-6377.1996

中图分类号：

Q93 [微生物学];

学科分类号：

071005 ; 100705 ;

摘要：

Several 16S to 23S spacers of 354 bp have been sequenced from six Escherichia coli strains belonging to the ECOR collection, Four phylogenetically informative variable sites were identified. The results of their comparison confirm the existence of two major phylogenetic branches in this species, as previously reported. Remarkable intercistronic heterogeneity was found in strain ECOR35 and its closest relatives, in which at least one of the operons has suffered a major mutagenic event or has an independent phylogenetic origin.

引用

页码：6374 / 6377

页数：4

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