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Genome-wide identification and expression analysis of DNA demethylase family in cotton

Journal of Cotton Research 2019年第3期2卷 142-150页

作者： YANG Xiaomin LU Xuke CHEN Xiugui WANG Delong WANG Junjuan WANG Shuai GUO Lixue CHEN Chao WANG Xiaoge WANG Xinlei YE Wuwei Institute of Cotton Research of Chinese Academy of Agricultural Sciences/State Key Laboratory of Cotton Biology Key Laboratory for Cotton Genetic ImprovementMOAA

Background:DNA methylation is an important epigenetic factor that maintains and regulates gene *** mode and level of DNA methylation depend on the roles of DNA methyltransferase and demethylase,while DNA demethylase plays a key role in the process of DNA *** results showed that the plant’s DNA demethylase all contained conserved DNA glycosidase *** study identified the cotton DNA demethylase gene family and analyzed it using bioinformatics methods to lay the foundation for further study of cotton demethylase gene ***:This study used genomic information from diploid Gossypium raimondii JGI(D),Gossypium arboreum ***(A),Gossypium hirsutum ***(AD1) and Gossypium barbadebse L NAU(AD2) to Arabidopsis *** DNA demethylase genes sequence of Arabidopsis as reference,25 DNA demethylase genes were identified in cotton by BLAST *** are 4 genes in the genome D,5 genes in the genome A,10 genes in the genome AD1,and 6 genes in the genome *** gene structure and evolution were analyzed by bioinformatics,and the expression patterns of DNA demethylase gene family in Gossypium hirsutum L were *** the phylogenetic tree analysis,the DNA demethylase gene family of cotton can be divided into four subfamilies:REPRESSOR of SILENCING 1(ROS1),DEMETER(DME),DEMETER-LIKE 2(DML2),and DEMETER-LIKE3(DML3).The sequence similarity of DNA demethylase genes in the same species was higher,and the genetic relationship was also relatively *** of the gene structure revealed that the DNA demethylase gene family members of the four subfamilies varied *** them,the number of introns of ROS1 and DME subfamily was larger,and the gene structure was more *** the analysis of the conserved domain,it was known that the DNA demethylase family gene member has an endonuclease Ⅲ(END03 c) ***:The genes of the DNA demethylase family are distributed differently in different cotton species,and the ge

关键词： DNA demethylase Gossypium arboreum L. Gossypium barbadebse L. Gossypium hirsutum L. Gossypium raimondii

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