The evolution of disease resistance genes

被引：154

作者：

Richter, TE

Ronald, PC

机构：

[1] Ctr Engn Plants Resistance Pathogens, Davis, CA 95616 USA

[2] Univ Calif Davis, Dept Plant Pathol, Davis, CA 95616 USA

来源：

PLANT MOLECULAR BIOLOGY | 2000年 / 42卷 / 01期

关键词：

gene duplication; intergenic recombination; leucine-rich repeat (LRR); transposable elements; Xa21;

D O I：

10.1023/A:1006388223475

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Several common themes have shaped the evolution of plant disease resistance genes. These include duplication events of progenitor resistance genes and further expansion to create clustered gene families. Variation can arise from both intragenic and intergenic recombination and gene conversion. Recombination has also been implicated in the generation of novel resistance specificities. Resistance gene clusters appear to evolve more rapidly than other regions of the genome. In addition, domains believed to be involved in recognitional specificity, such as the leucine-rich repeat (LRR), are subject to adaptive selection. Transposable elements have been associated with some resistance gene clusters, and may generate further variation at these complexes.

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收藏

页码：195 / 204

页数：10

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