OPINION The evolutionary significance of ancient genome duplications

被引：831

作者：

Van de Peer, Yves ^{[1
,2
]}

Maere, Steven ^{[1
,2
]}

Meyer, Axel ^{[3
,4
]}

机构：

[1] Univ Ghent VIB, Dept Plant Syst Biol, B-9052 Ghent, Belgium

[2] Univ Ghent, Dept Plant Biotechnol & Genet, Bioinformat & Evolutionary Genom Res Grp, B-9052 Ghent, Belgium

[3] Univ Konstanz, Dept Biol, D-78457 Constance, Germany

[4] Inst Adv Study, D-14193 Berlin, Germany

来源：

NATURE REVIEWS GENETICS | 2009年 / 10卷 / 10期

关键词：

RECIPROCAL GENE LOSS; WHOLE-GENOME; AMPHIOXUS GENOME; ORIGIN; POLYPLOIDY; DIVERSIFICATION; MECHANISMS; EXPRESSION; PLANTS; MODEL;

D O I：

10.1038/nrg2600

中图分类号：

Q3 [遗传学];

学科分类号：

071007 ; 090102 ;

摘要：

Many organisms are currently polyploid, or have a polyploid ancestry and now have secondarily 'diploidized' genomes. This finding is surprising because retained whole-genome duplications (WGDs) are exceedingly rare, suggesting that polyploidy is usually an evolutionary dead end. We argue that ancient genome doublings could probably have survived only under very specific conditions, but that, whenever established, they might have had a pronounced impact on species diversification, and led to an increase in biological complexity and the origin of evolutionary novelties.

引用

页码：725 / 732

页数：8

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