气候变化领域集成服务门户(CCPortal): Rapid turnover of antimicrobial-type cysteine-rich protein genes in closely related Oryza genomes

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DOI	10.1007/s00438-015-1028-4
	Rapid turnover of antimicrobial-type cysteine-rich protein genes in closely related Oryza genomes
	Shenton, Matthew R.; Ohyanagi, Hajime; Wang, Zi-Xuan; Toyoda, Atsushi; Fujiyama, Asao; Nagata, Toshifumi; Feng, Qi; Han, Bin; Kurata, Nori
发表日期	2015
ISSN	1617-4615
EISSN	1617-4623
卷号	290 期号:5
英文摘要	Defensive and reproductive protein genes undergo rapid evolution. Small, cysteine-rich secreted peptides (CRPs) act as antimicrobial agents and function in plant intercellular signaling and are over-represented among reproductively expressed proteins. Because of their roles in defense, reproduction and development and their presence in multigene families, CRP variation can have major consequences for plant phenotypic and functional diversification. We surveyed the CRP genes of six closely related Oryza genomes comprising Oryza sativa ssp. japonica and ssp. indica, Oryza glaberrima and three accessions of Oryza rufipogon to observe patterns of evolution in these gene families and the effects of variation on their gene expression. These Oryza genomes, like other plant genomes, have accumulated large reservoirs of CRP sequences, comprising 26 groups totaling between 676 and 843 genes, in contrast to antimicrobial CRPs in animal genomes. Despite the close evolutionary relationships between the genomes, we observed rapid changes in number and structure among CRP gene families. Many CRP sequences are in gene clusters generated by local duplications, have undergone rapid turnover and are more likely to be silent or specifically expressed. By contrast, conserved CRP genes are more likely to be highly and broadly expressed. Variable CRP genes created by repeated duplication, gene modification and inactivation can gain new functions and expression patterns in newly evolved gene copies. For the CRP proteins, the process of gain/loss by deletion or duplication at gene clusters seems to be an important mechanism in evolution of the gene families, which also contributes to their expression evolution.
关键词	CRP Cysteine Evolution Gene cluster Oryza
学科领域	Biochemistry & Molecular Biology; Genetics & Heredity
语种	英语
WOS研究方向	Biochemistry & Molecular Biology ; Genetics & Heredity
来源期刊	MOLECULAR GENETICS AND GENOMICS
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/111797
作者单位	Natl Inst Genet, Plant Genet Lab, Mishima, Shizuoka 4118540, Japan
推荐引用方式 GB/T 7714	Shenton, Matthew R.,Ohyanagi, Hajime,Wang, Zi-Xuan,et al. Rapid turnover of antimicrobial-type cysteine-rich protein genes in closely related Oryza genomes[J]. 中国科学院西北生态环境资源研究院,2015,290(5).
APA	Shenton, Matthew R..,Ohyanagi, Hajime.,Wang, Zi-Xuan.,Toyoda, Atsushi.,Fujiyama, Asao.,...&Kurata, Nori.(2015).Rapid turnover of antimicrobial-type cysteine-rich protein genes in closely related Oryza genomes.MOLECULAR GENETICS AND GENOMICS,290(5).
MLA	Shenton, Matthew R.,et al."Rapid turnover of antimicrobial-type cysteine-rich protein genes in closely related Oryza genomes".MOLECULAR GENETICS AND GENOMICS 290.5(2015).