期刊
TRENDS IN PLANT SCIENCE
卷 19, 期 6, 页码 367-370出版社
ELSEVIER SCIENCE LONDON
DOI: 10.1016/j.tplants.2014.01.011
关键词
R-genes; gene clusters; transposable elements; mutations
Perennial plants need to cope with changing environments and pathogens over their lifespan. Infections are compartmentalised by localised physiological responses, and multiple apical meristems enable repair and regrowth, but genes are another crucial component in the perception and response to pathogens. In this opinion article we suggest that the mechanism for dynamic pathogen-specific recognition in long-lived plants could be explained by extending our current understanding of plant defence genes. We propose that, in addition to physiological responses, tree defence uses a three-pronged genomic approach involving: (i) gene numbers, (ii) genomic architecture, and (iii) mutation loads accumulated over long lifespans.
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