Moving targets: rapid evolution of oomycete effectors

被引:14
作者
Soanes, Darren M. [1 ]
Talbot, Nicholas J. [1 ]
机构
[1] Univ Exeter, Sch Biosci, Exeter EX4 4QD, Devon, England
关键词
D O I
10.1016/j.tim.2008.08.002
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
Plant pathogenic microbes secrete proteins known as effectors, which enter the cytoplasm of plant cells and suppress host defences. Known effectors in oomycete pathogens possess an RXLR-EER motif in their amino acid sequence that is necessary for transport of the effector into a host plant cell. A large number of putative effectors have now been identified in oomycete genomes, the sequences of which show evidence of diversifying selection at their C terminus. Here, we describe recent progress in characterizing RXLR-EER effectors and discuss why so many of these rapidly evolving proteins are encoded by the genomes of plant pathogenic oomycetes.
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收藏
页码:507 / 510
页数:4
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