Causes and evolutionary significance of genetic convergence

被引：155

作者：

Christin, Pascal-Antoine ^{[1
]}

Weinreich, Daniel M. ^{[1
]}

Besnard, Guillaume ^{[2
]}

机构：

[1] Brown Univ, Dept Ecol & Evolutionary Biol, Providence, RI 02906 USA

[2] Univ London Imperial Coll Sci Technol & Med, Ascot SL5 7PY, Berks, England

来源：

TRENDS IN GENETICS | 2010年 / 26卷 / 09期

基金：

瑞士国家科学基金会;

关键词：

PHENOTYPIC CONVERGENCE; MOLECULAR EVOLUTION; C-4; PHOTOSYNTHESIS; FITNESS LANDSCAPES; CONSTRAINT; POPULATIONS; PERSPECTIVE; ADAPTATION; RESISTANCE; SELECTION;

D O I：

10.1016/j.tig.2010.06.005

中图分类号：

Q3 [遗传学];

学科分类号：

071007 ; 090102 ;

摘要：

Convergent phenotypes provide extremely valuable systems for studying the genetics of new adaptations. Accumulating studies on this topic have reported surprising cases of convergent evolution at the molecular level, ranging from gene families being recurrently recruited to identical amino acid replacements in distant lineages. Together, these different examples of genetic convergence suggest that molecular evolution is in some cases strongly constrained by a combination of limited genetic material suitable for new functions and a restricted number of substitutions that can confer specific enzymatic properties. We discuss approaches for gaining further insights into the causes of genetic convergence and their potential contribution to our understanding of how the genetic background determines the evolvability of complex organismal traits.

引用

页码：400 / 405

页数：6

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