首页 | 本学科首页   官方微博 | 高级检索  
     检索      


Plant genomic DNA methylation in response to stresses:Potential applications and challenges in plant breeding
Authors:Hai Peng  Jing Zhang
Institution:Laboratory of Germplasm and Genetics,College of Life Science,Jianghan University,Wuhan 430056,China
Abstract:The plant genome can respond rapidly and dynamically to stress in a manner that overcomes the restrictions of a highly stable DNA sequence. Abiotic stresses such as chilling, planting density, rubbing, cutting, and successive rounds of subculture generally decrease the levels of DNA methylation. The opposite effect is seen for salt stress, and the effects of heavy-metal stress are species specific. Biotic stresses such as pathogenic infection can lead to two contrasting effects on the levels of methylation in plants: hypermethylation on the genome-wide level and hypomethylation of resistance-related genes. Both phenomena may contribute to the adaptation of plants to stress. Although heritable methylation patterns and phenotypic variations that arise in response to stress are of potential value for plant breeding, their exploitation presents great challenges.
Keywords:DNA methylation  Plant breeding  Stress
本文献已被 维普 万方数据 ScienceDirect 等数据库收录!
点击此处可从《自然科学进展(英文版)》浏览原始摘要信息
点击此处可从《自然科学进展(英文版)》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号