Genetic and Epigenetic Effects of Plant-Pathogen Interactions： An Evolutionary Perspective

• Published in: Molecular plant Vol. 4; no. 6; pp. 1014 - 1023
• Main Authors: Boyko, Alex, Kovalchuk, Igor
• Format: Journal Article
• Language: English
• Published: England Elsevier Inc 01-11-2011; Oxford University Press; Cell Press
• Subjects: Abiotic and biotic stress; Arabidopsis thaliana; Deoxyribonucleic acid; DNA; DNA methylation; Epigenesis, Genetic - genetics; Epigenetics; Evolution, Molecular; Genes; genetic and epigenetic response; Genetics; genome evolution; genome stability; Genomes; Host-Pathogen Interactions - genetics; Host-Pathogen Interactions - immunology; methylation pattern; Nicotiana tabacum; Plant Diseases - genetics; Plant Diseases - immunology; Plant Diseases - microbiology; Plant Diseases - virology; Plants - genetics; Plants - immunology; Plants - microbiology; Plants - virology; Signal Transduction - genetics; Stress, Physiological - genetics; transgenerational effect; 基因组进化; 基因组重排; 植物; 病原体感染; 相互作用; 表观; 遗传效应; 重组频率; Arabidopsis thaliana; transgenerational effect; genome stability; genome evolution; genetic and epigenetic response; methylation pattern; Nicotiana tabacum; Abiotic and biotic stress
• ISSN: 1674-2052; 1752-9867
• DOI: 10.1093/mp/ssr022

Recent reports suggest that exposure to stress is capable of influencing the frequency and pattern of inherited changes in various parts of the genome. In this review, we will discuss the influence of viral pathogens on somatic and meiotic genome stability of Nicotiana tabacum and Arabidopsis thaliana. Plants infected with a compatible pathogen generate a systemic recombination signal that precedes the spread of pathogens and results in changes in the somatic and meiotic recombination frequency. The progeny of infected plants exhibit changes in global and locus-specific DNA methylation patterns, genomic rearrangements at transgenic reporter loci and resistance gene-like-loci, and even tolerance to pathogen infection and abiotic stress. Here, we will discuss the contribution of environmental stresses to genome evolution and will focus on the role of heritable epigenetic changes in response to pathogen infection.