Genome-wide Identification of TCP Family Transcription Factors from Populus euphratica and Their Involvement in Leaf Shape Regulation.
Higher plants have been shown to experience a juvenile vegetative phase, an adult vegetative phase, and a reproductive phase during its postembryonic development and distinct lateral organ morphologies have been observed at the different development stages. Populus euphratica, commonly known as a desert poplar, has developed heteromorphic leaves during its development. The TCP family genes encode a group of plant-specific transcription factors involved in several aspects of plant development. In particular, TCPs have been shown to influence leaf size and shape in many herbaceous plants. However, whether these functions are conserved in woody plants remains unknown. In the present study, we carried out genome-wide identification of TCP genes in P. euphratica and P. trichocarpa, and 33 and 36 genes encoding putative TCP proteins were found, respectively. Phylogenetic analysis of the poplar TCPs together with Arabidopsis TCPs indicated a biased expansion of the TCP gene family via segmental duplications. In addition, our results have also shown a correlation between different expression patterns of several P. euphratica TCP genes and leaf shape variations, indicating their involvement in the regulation of leaf shape development.
Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, 810008, China.|School of Chemistry and Chemical Engineering, Qinghai University for Nationalities, Xining, 810007, China.|University of the Chinese Academy of Sciences, Beijing, 100049 China.
Xiaodong
X
Ma
State Key Laboratory of Grassland Agro-Ecosystem, School of Life Science, Lanzhou University, Lanzhou, China.
Jianchao
J
Ma
School of Life Science, Southwest University, Chongqing, 400715 China.
Di
D
Fan
Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, 810008, China.|University of the Chinese Academy of Sciences, Beijing, 100049 China.
Chaofeng
C
Li
School of Life Science, Southwest University, Chongqing, 400715 China.
Yuanzhong
Y
Jiang
Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, 810008, China.|School of Life Science, Southwest University, Chongqing, 400715 China.
Keming
K
Luo
D002874:Chromosome Mapping; D032461:Chromosomes, Plant; D018506:Gene Expression Regulation, Plant; D018745:Genome, Plant; D055106:Genome-Wide Association Study; D010802:Phylogeny; D018515:Plant Leaves / Q000033:anatomy & histology / Q000502:physiology*; D010940:Plant Proteins / Q000235:genetics* / Q000378:metabolism; D032107:Populus / Q000235:genetics*; D014157:Transcription Factors / Q000235:genetics* / Q000378:metabolism
D010940:Plant Proteins; D014157:Transcription Factors