title: Comprehensive analysis of TCP transcription factors and their expression during cotton (Gossypium arboreum) fiber early development.
abstract: TCP proteins are plant-specific transcription factors implicated to perform a variety of physiological functions during plant growth and development. In the current study, we performed for the first time the comprehensive analysis of TCP gene family in a diploid cotton species, Gossypium arboreum, including phylogenetic analysis, chromosome location, gene duplication status, gene structure and conserved motif analysis, as well as expression profiles in fiber at different developmental stages. Our results showed that G. arboreum contains 36 TCP genes, distributing across all of the thirteen chromosomes. GaTCPs within the same subclade of the phylogenetic tree shared similar exon/intron organization and motif composition. In addition, both segmental duplication and whole-genome duplication contributed significantly to the expansion of GaTCPs. Many these TCP transcription factor genes are specifically expressed in cotton fiber during different developmental stages, including cotton fiber initiation and early development. This suggests that TCP genes may play important roles in cotton fiber development.
authors: Department of Biology, East Carolina University, Greenville, NC 27858, USA.
authors: Jun
authors: J
authors: Ma
authors: State Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, Henan 455000, P. R. China.
authors: Fang
authors: F
authors: Liu
authors: Henan Institute of Sciences and Technology, Xinxiang, Henan 453003, P. R. China.
authors: Qinglian
authors: Q
authors: Wang
authors: State Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, Henan 455000, P. R. China.
authors: Kunbo
authors: K
authors: Wang
authors: Cotton Incorporated, Cary, NC 27513, USA.
authors: Don C
authors: DC
authors: Jones
authors: Department of Biology, East Carolina University, Greenville, NC 27858, USA.|Henan Institute of Sciences and Technology, Xinxiang, Henan 453003, P. R. China.
authors: Baohong
authors: B
authors: Zhang
mesh_terms: D020816:Amino Acid Motifs; D032461:Chromosomes, Plant / Q000235:genetics / Q000378:metabolism; D018506:Gene Expression Regulation, Plant / Q000502:physiology*; D003368:Gossypium / Q000235:genetics / Q000378:metabolism; D010802:Phylogeny; D010940:Plant Proteins / Q000096:biosynthesis / Q000235:genetics; D014157:Transcription Factors / Q000096:biosynthesis / Q000235:genetics
chemical_list: D010940:Plant Proteins; D014157:Transcription Factors