Gene duplications and the time thereafter - examples from plant secondary metabolism

被引：49

作者：

Ober, D. ^{[1
,2
]}

机构：

[1] Univ Kiel, Inst Bot, D-24098 Kiel, Germany

[2] Univ Kiel, Bot Garten, D-24098 Kiel, Germany

来源：

PLANT BIOLOGY | 2010年 / 12卷 / 04期

关键词：

Bifunctionality; gene recruitment; neofunctionalisation; pathway evolution; plant secondary metabolism; subfunctionalisation; PYRROLIZIDINE ALKALOID BIOSYNTHESIS; HOMOSPERMIDINE SYNTHASE; DEOXYHYPUSINE SYNTHASE; ARABIDOPSIS-THALIANA; PHALAENOPSIS ORCHIDS; MOLECULAR EVOLUTION; TRYPTOPHAN SYNTHASE; ADAPTIVE EVOLUTION; EXPRESSION; DIVERSITY;

D O I：

10.1111/j.1438-8677.2009.00317.x

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Gene duplications are regarded as one of the central mechanisms for the origin of new genes. Recent studies in plant secondary metabolism have provided several examples of genes that originated by duplication with successive diversification. In this review, the mechanisms of gene duplication are explained and several models discussed that suggest the way that gene duplicates develop into genes with new functions. Signatures of gene duplication and diversification processes are discussed using the biosynthesis of benzoxazinones and of pyrrolizidine alkaloids as examples.

引用

页码：570 / 577

页数：8

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