Tandem and segmental gene duplication and recombination in the evolution of plant disease resistance genes

被引：425

作者：

Leister, D ^{[1
]}

机构：

[1] Max Planck Inst Zuchtungsforsch, Abt Pflanzenzuchtung & Ertragsphysiol, D-50829 Cologne, Germany

来源：

TRENDS IN GENETICS | 2004年 / 20卷 / 03期

关键词：

D O I：

10.1016/j.tig.2004.01.007

中图分类号：

Q3 [遗传学];

学科分类号：

071007 ; 090102 ;

摘要：

NBS-LRR genes are the major class of disease resistance genes in flowering plants, and are arranged as single genes and as clustered loci. The evolution of these genes has been investigated in Arabidopsis thaliana by combining data on their genomic organisation and position in phylogenetic trees. Tandem and segmental duplications distribute and separate NBS-LRR genes in the genome. It is, however, unclear by which mechanism(s) NBS-LRR genes from different clades are sampled into heterogeneous clusters. Once physically removed from their closest relatives, the NBS-LRR genes might adopt and preserve new specificities because they are less prone to sequence homogenization.

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收藏

页码：116 / 122

页数：7

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