Exploring the evolutionary differences of SBP-box genes targeted by miR156 and miR529 in plants

CORC > 昆明植物研究所 > 中国科学院昆明植物研究所 > 中国科学院东亚植物多样性与生物地理学重点实验室

	Exploring the evolutionary differences of SBP-box genes targeted by miR156 and miR529 in plants
	Ling, Li-Zhen 1,2,3; Zhang, Shu-Dong 1,2
刊名	GENETICA
	2012-09-01
卷号	140 期号:7-9 页码:317-324
关键词	miRNA SBP-box genes Evolutionary rate Combinatorial control
英文摘要	The combinatorial control of one target by multiple miRNAs brings big challenges to elucidate its precise evolutionary mechanism. Squamosa promoter binding protein-like (SBP) gene family exhibits the different regulatory patterns, in which some members are only regulated by miR156 and others by miR156 and miR529. Here, we explored the different evolutionary patterns and rates between miR156 targets and miR529 ones in three species (moss, rice, and maize). Our work found that the miR529 targets were members of miR156 target dataset, indicative of cooperative control. Further phylogenetic analyses as well as gene structure features demonstrated that miR529 targets derived from a monophyletic branch of miR156 targets which evolved into two independent branches duo to the ancient gene duplication. Moreover, inspection of evolutionary rate parameters (d(N)/d(S), d(N) and d(S)) for miR156 targets and miR529 ones revealed they were under different selection strength. MiR529 targets were more constraint by strong purifying selection and evolved conservatively with a slow rate. By contrast, miR156 targets evolved more rapidly and experienced more relaxed purifying selection, which may contribute to their functional diversification. Our results will enhance the understanding of different evolutionary fates of SBP-box genes regulated by the different numbers of miRNA families before functional studies.
类目[WOS]	Genetics & Heredity
研究领域[WOS]	Genetics & Heredity
关键词[WOS]	TRANSCRIPTION FACTOR FAMILY ; WIDE IDENTIFICATION ; MAXIMUM-LIKELIHOOD ; MICRORNA TARGETS ; ARABIDOPSIS ; RICE ; ANIMALS ; RATES
收录类别	SCI
语种	英语
WOS记录号	WOS:000311392600005
内容类型	期刊论文
源URL	[http://ir.kib.ac.cn/handle/151853/20453]
专题	昆明植物研究所_中国科学院东亚植物多样性与生物地理学重点实验室
作者单位	1.Chinese Acad Sci, Kunming Inst Bot, Key Lab Biodivers & Biogeog, Kunming 650201, Peoples R China 2.Germplasm Bank Wild Species, Plant Germplasm & Genom Ctr, Kunming 650201, Peoples R China 3.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Ling, Li-Zhen,Zhang, Shu-Dong. Exploring the evolutionary differences of SBP-box genes targeted by miR156 and miR529 in plants[J]. GENETICA,2012,140(7-9):317-324.
APA	Ling, Li-Zhen,&Zhang, Shu-Dong.(2012).Exploring the evolutionary differences of SBP-box genes targeted by miR156 and miR529 in plants.GENETICA,140(7-9),317-324.
MLA	Ling, Li-Zhen,et al."Exploring the evolutionary differences of SBP-box genes targeted by miR156 and miR529 in plants".GENETICA 140.7-9(2012):317-324.