Decoupling of genome size and sequence divergence in a symbiotic bacterium

被引：43

作者：

Wernegreen, JJ ^{[1
]}

Ochman, H ^{[1
]}

Jones, IB ^{[1
]}

Moran, NA ^{[1
]}

机构：

[1] Univ Arizona, Dept Ecol & Evolutionary Biol, Tucson, AZ 85721 USA

来源：

JOURNAL OF BACTERIOLOGY | 2000年 / 182卷 / 13期

关键词：

D O I：

10.1128/JB.182.13.3867-3869.2000

中图分类号：

Q93 [微生物学];

学科分类号：

071005 ; 100705 ;

摘要：

In contrast to genome size variation in most bacterial taxa, the small genome size of Buchnera sp. was shown to be highly conserved across genetically diverse isolates (630 to 643 kb). This exceptional size conservation may reflect the inability of this obligate mutualist to acquire foreign DNA and reduced selection for genetic novelty within a static intracellular environment.

引用

页码：3867 / 3869

页数：3

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