Evolutionary Dynamics and Genomic Impact of Prokaryote Transposable Elements

被引：14

作者：

Cerveau, Nicolas ^{[1
]}

Leclercq, Sebastien ^{[1
]}

Bouchon, Didier ^{[1
]}

Cordaux, Richard ^{[1
]}

机构：

[1] Univ Poitiers, CNRS, UMR Ecol Evolut Symbiose 6556, F-86022 Poitiers, France

来源：

EVOLUTIONARY BIOLOGY: CONCEPTS, BIODIVERSITY, MACROEVOLUTION AND GENOME EVOLUTION | 2011年

关键词：

GROUP-II INTRON; HORIZONTAL GENE-TRANSFER; BACILLUS-CEREUS GROUP; ESCHERICHIA-COLI; INSERTION SEQUENCES; TARGET SPECIFICITY; BACTERIAL ENDOSYMBIONTS; TRANSPOSITION ACTIVITY; RICKETTSIA-PEACOCKII; NATURAL-POPULATIONS;

D O I：

10.1007/978-3-642-20763-1_17

中图分类号：

Q [生物科学];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Transposable elements (TEs) are one of the major forces that drive prokaryote genome evolution. Analyses of TE evolutionary dynamics revealed extensive variability in TE density between prokaryote genomes, even closely related ones. To explain this variability, a model of recurrent invasion/proliferation/extinction cycles has been proposed. In this chapter, we examine different parameters that influence these cycles in two of the simplest TE classes: insertion sequences and group II introns. In particular, we discuss TE transposition efficiency (mechanisms and regulation), ability to transfer horizontally (through plasmids and phages), and impact on genome evolution (gene activation/inactivation and structural variation). Finally, we describe TE dynamics in bacterial endosymbionts, especially in Wolbachia, to illustrate the importance of host population size in prokaryote TE evolution.

引用

页码：291 / 312

页数：22

共 112 条

[1] Enhanced Expression of lmb Gene Encoding Laminin-Binding Protein in Streptococcus agalactiae Strains Harboring IS1548 in scpB-lmb Intergenic Region [J].