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Phylogeny and expression pattern analysis of TCP transcription factors in cassava seedlings exposed to cold and/or drought stress

文献类型： 外文期刊

作者： Lei, Ning 2 ; Yu, Xiang 3 ; Li, Shuxia 1 ; Zeng, Changying 1 ; Zou, Liangping 1 ; Liao, Wenbin 1 ; Peng, Ming 1 ;

作者机构： 1.Chinese Acad Trop Agr Sci, Inst Trop Biosci & Biotechnol, Haikou 571101, Hainan, Peoples R China

2.Hainan Univ, Inst Trop Agr & Forestry, Haikou 570228, Hainan, Peoples R China

3.Chinese Acad Sci, Natl Key Lab Plant Mol Genet, Shanghai 200032, Peoples R China

4.Chinese Acad Sci, Natl Ctr Plant Gene Res Shanghai, Inst Plant Physiol & Ecol, Shanghai Inst Biol Sci, Shanghai 200032, Peoples R China

5.Univ Penn, Dept Biol, Philadelphia, PA 19104 USA

期刊名称：SCIENTIFIC REPORTS （ 影响因子：4.379； 五年影响因子：5.133 ）

ISSN： 2045-2322

年卷期： 2017 年 7 卷

页码：

收录情况： SCI

摘要： The TCP transcription factors usually act as integrators of multiple growth regulatory and environmental stimuli. However, little is known about this gene family in the important tropical crop cassava (Manihot esculenta). In this study, 36 TCP genes were identified and renamed based on cassava whole-genome sequence and their sequence similarity with Arabidopsis TCPs. Typical TCP domains were detected in these proteins by multiple sequence alignment analysis. Evolutionary analysis indicated that MeTCPs could be divided into 8 subgroups, which was further supported by gene structure and conserved motif analyses. qRT-PCR analysis revealed tissue-specific and hormone-responsive expression patterns of MeTCP genes. Moreover, with global expression and promoter analysis, we found that MeTCPs showed similar or distinct expression patterns under cold and/or drought stress, suggesting that they might participate in distinct signaling pathways. Our study provides the first comprehensive analysis of TCP gene family in the cassava genome. The data will be useful for uncovering the potential functions of MeTCP genes, and their possible roles in mediating hormone and abiotic stress responses in cassava.

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