Analysis of two TFL1 homologs of dogwood species (Cornus L.) indicates functional conservation in control of transition to flowering

doi:10.1007/s00425-016-2466-x

	Analysis of two TFL1 homologs of dogwood species (Cornus L.) indicates functional conservation in control of transition to flowering
	Liu, Xiang ; Zhang, Jian 1; Abuahmad, Ahmad ; Franks, Robert G.; Xie, De-Yu ; Xiang, Qiu-Yun
	2016
发表期刊	PLANTA
ISSN	0032-0935
卷号	243 期号:5 页码:1129-1141
摘要	Two TFL1 -like genes, CorfloTFL1 and CorcanTFL1 cloned from Cornus florida and C. canadensis, function in regulating the transition to reproductive development in Arabidopsis. TERMINAL FLOWER 1 (TFL1) is known to regulate inflorescence development in Arabidopsis thaliana and to inhibit the transition from a vegetative to reproductive phase within the shoot apical meristem. Despite the importance, TFL1 homologs have been functionally characterized in only a handful eudicots. Here we report the role of TFL1 homologs of Cornus L. in asterid clade of eudicots. Two TFL1-like genes, CorfloTFL1 and CorcanTFL1, were cloned from Cornus florida (a tree) and C. canadensis (a subshrub), respectively. Both are deduced to encode proteins of 175 amino acids. The amino acid sequences of these two Cornus TFL1 homologs share a high similarity to Arabidopsis TFL1 and phylogenetically more close to TFL1 paralogous copy ATC (Arabidopsis thaliana CENTRORADIALIS homologue). Two genes are overexpressed in wild-type and tfl1 mutant plants of A. thaliana. The over-expression of each gene in wild-type Arabidopsis plants results in delaying flowering time, increase of plant height and cauline and rosette leaf numbers, excessive shoot buds, and secondary inflorescence branches. The over-expression of each gene in the tfl1 mutant rescued developmental defects, such as the early determinate inflorescence development, early flowering time, and other vegetative growth defects, to normal phenotypes of wild-type plants. These transgenic phenotypes are inherited in progenies. All data indicate that CorfloTFL1 and CorcanTFL1 have conserved the ancestral function of TFL1 and CEN regulating flowering time and inflorescence determinacy.
关键词	Cornus TERMINAL FLOWER 1 (TFL1) Genetic transformation Flowering time Inflorescence architecture
学科领域	Plant Sciences
DOI	10.1007/s00425-016-2466-x
收录类别	SCI
语种	英语
WOS关键词	PEBP GENE FAMILY ; INFLORESCENCE ARCHITECTURE ; TFL1-LIKE GENE ; FLORAL DIP ; ARABIDOPSIS ; EXPRESSION ; EVOLUTION ; GROWTH ; MODEL ; TIME
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000374661800004
出版者	SPRINGER
文献子类	Article
出版地	NEW YORK
EISSN	1432-2048
资助机构	National Science Foundation of the United StatesNational Science Foundation (NSF) [IOS-1024629]
作者邮箱	rgfranks@ncsu.edu ; dxie@ncsu.edu ; jenny_xiang@ncsu.edu
引用统计	被引频次：16[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ibcas.ac.cn/handle/2S10CLM1/25378
专题	中科院植物分子生理学重点实验室
作者单位	1.N Carolina State Univ, Dept Plant & Microbial Biol, Raleigh, NC 27695 USA 2.Chinese Acad Sci, Inst Bot, State Key Lab Systemat & Evolutionary Bot, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Liu, Xiang,Zhang, Jian,Abuahmad, Ahmad,et al. Analysis of two TFL1 homologs of dogwood species (Cornus L.) indicates functional conservation in control of transition to flowering[J]. PLANTA,2016,243(5):1129-1141.
APA	Liu, Xiang,Zhang, Jian,Abuahmad, Ahmad,Franks, Robert G.,Xie, De-Yu,&Xiang, Qiu-Yun.(2016).Analysis of two TFL1 homologs of dogwood species (Cornus L.) indicates functional conservation in control of transition to flowering.PLANTA,243(5),1129-1141.
MLA	Liu, Xiang,et al."Analysis of two TFL1 homologs of dogwood species (Cornus L.) indicates functional conservation in control of transition to flowering".PLANTA 243.5(2016):1129-1141.

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