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当前位置: 首页 > 文章 > 谷子TCP基因家族成员序列特征及表达模式分析 分子植物育种 2020 (3) 710-718
Position: Home > Articles > Sequence Characteristics and Expression Patterns Analysis of TCP Gene Family Members in Foxtail Millet(Setaria italica) Molecular Plant Breeding 2020 (3) 710-718

谷子TCP基因家族成员序列特征及表达模式分析

作  者：
连卜颍;王喆;韩尚玲;侯思宇;韩渊怀;李红英
单  位：
山西农业大学农业生物工程研究所;山西农业大学农学院;山西农业大学杂粮种质资源发掘与遗传改良山西省重点实验室
关键词：
谷子(Setaria italica);TCP;转录因子;生物信息学分析;基因表达分析
摘  要：
为深入解析谷子TCP基因家族的功能,通过生物信息学方法对谷子TCP转录因子家族基因成员序列特征、基因结构、染色体定位、系统进化关系及表达模式进行分析。结果表明:除第8染色体之外,从谷子基因组上其余8条染色体中共鉴定出26个TCP家族成员,并根据其在染色体的顺序和位置先后进行命名,其中分布在第3和第5染色体上的TCP家族成员数量最多,高达5个。不同家族成员其编码的氨基酸残基数目具有明显差异,范围为95 aa～451 aa。其中SiTCP21基因编码氨基酸残基数目最少为95个氨基酸;而SiTCP15最多为451个氨基酸残基。26个TCP家族成员的蛋白结构中均含有bHLH保守结构域。基因表达分析结果表明,31%的成员在穗中的表达量明显高于其他组织,因此推测该基因家族可能对谷子穗部生长发育的调控起关键作用。本研究对深入研究Si TCPs家族基因的功能奠定了基础,也为谷子生长发育的调控机制提供了新的思路。
译  名：
Sequence Characteristics and Expression Patterns Analysis of TCP Gene Family Members in Foxtail Millet(Setaria italica)
作  者：
Lian Boying;Wang Zhe;Han Shangling;Hou Siyu;Han Yuanhuai;Li Hongying;College of Agriculture, Shanxi Agricultural University;Institute of Agricultural Bioengineer, Shanxi Agricultural University;Shanxi Key Laboratory of Germplasm Resources Exploretion and Genetic Improvement, Shanxi Agricultural University;
关键词：
Foxtail millet(Setaria italica);;TCP;;Transcription factor;;Bioinformatics analysis;;Gene expression analysis
摘  要：
In order to further analyse the function of TCP gene family in foxtail millet, bioinformatics was used to analyse the sequence characteristics, gene structure, chromosomal location, phylogenetic relationship and expression pattern of TCP transcription factor family in foxtail millet. The results showed that chromosome 8 does not have TCP genes. However, 26 TCP family members were identified from the remaining 8 out of the 9 chromosomes in the foxtail millet genome. All of the TCP genes are positioned and named in chronological order from chromosome 1 to 9 in which chromosome 3 and 5 have up to 5 genes. The number of amino acid residues encoded by different TCP family members is significantly diverse, ranging from 95 aa to 451 aa. The SiTCP21 gene encodes95 aa, while SiTCP15 encodes a longer 451 aa. The 26 TCP family members all have bHLH conserved domain in their protein structure. The results of gene expression analysis showed that 31% of the TCP members are related to the development of the panicle compared to other tissues in the plant. It is speculated that this gene family may play a key role in the regulation of the growth and development of the panicle. This research lays a foundation for further study of the function of SiTCPs family genes and provides a new idea for the regulation mechanism of foxtail millet growth and development.

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