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- Title
Characterization of the CCT family and analysis of gene expression in Aegilops tauschii.
- Authors
Zheng, Xingwei; Li, Xiaohua; Ge, Chuan; Chang, Jianzhong; Shi, Mengmeng; Chen, Jianli; Qiao, Linyi; Chang, Zhijian; Zheng, Jun; Zhang, Jiancheng
- Abstract
Flowering is crucial for reproductive success in flowering plant. The CCT domain-containing genes widely participate in the regulation of flowering process in various plant species. So far, the CCT family in common wheat is largely unknown. Here, we characterized the structure, organization, molecular evolution and expression of the CCT genes in Aegilops tauschii, which is the D genome donor of hexaploid wheat. Twenty-six CCT genes (AetCCT) were identified from the full genome of A. tauschii and these genes were distributed on all 7 chromosomes. Phylogenetic analysis classified these AetCCT genes into 10 subgroups. Thirteen AetCCT members in group A, C, H and G achieved rapid evolution based on evolutionary rate analysis. The AetCCT genes respond to different exogenous hormones and abiotic treatments, the expression of AetCCT4, 7, 8, 11, 12, 16, 17, 19, 21 and 22 showed a significant 24 h rhythm. This study may provide a reference for common wheat's evolution, domestication and evolvement rules, and also help us to understand the ecological adaptability of A. tauschii.
- Subjects
AEGILOPS; GENE expression in plants; ANGIOSPERM genetics; GENETIC research; PLANT genetics; PLANT phylogeny
- Publication
PLoS ONE, 2017, Vol 12, Issue 12, p1
- ISSN
1932-6203
- Publication type
Article
- DOI
10.1371/journal.pone.0189333