Genome dynamics during experimental evolution

被引:450
作者
Barrick, Jeffrey E. [1 ,2 ]
Lenski, Richard E. [2 ,3 ]
机构
[1] Univ Texas Austin, Dept Mol Biosci, Inst Cellular & Mol Biol, Austin, TX 78712 USA
[2] Michigan State Univ, BEACON Ctr Study Evolut Act, E Lansing, MI 48824 USA
[3] Michigan State Univ, Dept Microbiol & Mol Genet, E Lansing, MI 48824 USA
基金
美国国家科学基金会; 美国国家卫生研究院;
关键词
LONG-TERM EXPERIMENT; ESCHERICHIA-COLI K-12; SPONTANEOUS MUTATION ACCUMULATION; BENEFICIAL MUTATIONS; CLONAL INTERFERENCE; ASEXUAL POPULATIONS; KEY INNOVATION; DROSOPHILA-MELANOGASTER; BACTERIAL POPULATION; MOLECULAR-SPECTRUM;
D O I
10.1038/nrg3564
中图分类号
Q3 [遗传学];
学科分类号
071007 ; 090102 ;
摘要
Evolutionary changes in organismal traits may occur either gradually or suddenly. However, until recently, there has been little direct information about how phenotypic changes are related to the rate and the nature of the underlying genotypic changes. Technological advances that facilitate whole-genome and whole-population sequencing, coupled with experiments that 'watch' evolution in action, have brought new precision to and insights into studies of mutation rates and genome evolution. In this Review, we discuss the evolutionary forces and ecological processes that govern genome dynamics in various laboratory systems in the context of relevant population genetic theory, and we relate these findings to evolution in natural populations.
引用
收藏
页码:827 / 839
页数:13
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