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Genome‐wide Analysis of Plant‐specific Dof Transcription Factor Family in Tomato
Author(s) -
Cai Xiaofeng,
Zhang Yuyang,
Zhang Chanjuan,
Zhang Tingyan,
Hu Tixu,
Ye Jie,
Zhang Junhong,
Wang Taotao,
Li Hanxia,
Ye Zhibiao
Publication year - 2013
Publication title -
journal of integrative plant biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.734
H-Index - 83
eISSN - 1744-7909
pISSN - 1672-9072
DOI - 10.1111/jipb.12043
Subject(s) - gene , biology , gene duplication , gene family , genetics , arabidopsis , genome , zinc finger , segmental duplication , transcription factor , phylogenetic tree , tbx1 , gene expression , computational biology , promoter , mutant
The Dof (DNA binding with One Finger) family encoding single zinc finger proteins has been known as a family of plant‐specific transcription factors. These transcription factors are involved in a variety of functions of importance for different biological processes in plants. In the current study, we identified 34 Dof family genes in tomato, distributed on 11 chromosomes. A complete overview of SlDof genes in tomato is presented, including the gene structures, chromosome locations, phylogeny, protein motifs and evolution pattern. Phylogenetic analysis of 34 SlDof proteins resulted in four classes constituting six clusters. In addition, a comparative analysis between these genes in tomato, Arabidopsis and rice was also performed. The tomato Dof family expansion has been dated to recent duplication events, and segmental duplication is predominant for the SlDof genes. Furthermore, the SlDof genes displayed differential expression either in their transcript abundance or in their expression patterns under normal growth conditions. This is the first step towards genome‐wide analyses of the Dof genes in tomato. Our study provides a very useful reference for cloning and functional analysis of the members of this gene family in tomato and other species.