玉米TCP家族基因生物信息学鉴定与分析

Bioinformatics Identification and Analysis of TCP Gene Family in Maize

TCP家族是一类与植物器官三维形态发育或细胞周期调控相关的转录因子。本研究通过SeqHunter2软件,在玉米基因组范围内进行TCP家族基因的搜索和鉴定。共鉴定了7个玉米TCP家族基因,并根据进化树拓扑结构将其分为两大类:ClassⅠ和ClassⅡ。通过玉米、拟南芥和水稻TCP家族的进化分析推测,玉米发生了特有的TCP家族基因扩增事件,这些物种分化后进化出的基因可能参与了玉米特有的生命活动或与玉米特有的生物特征相关。玉米7个TCP转录因子的保守基序在组成上存在差异,但均含有TCP家族中最保守的两个基序。

TCP family is a kind of transcription factors which contains some genes regulating the three -dimensional morphological development of plant organs and some genes regulating the cell cycle .The Se-qHunter2 soft ware was used to search and identify TCP gene family in maize genome .Seven maize （ Zea may） TCP family genes were identified and classed into 2 groups, ClassⅠand ClassⅡ, based on the evolu-tionary tree topology .Through the evolution analysis on TCP family in maize , Arabidopsis thaliana and rice, it was predicted that the species -specific expansion of TCP family maybe occured .The expansion maybe associ-ated with maize-specific vital movement and biological characteristics .The 7 genes had differences in motif combination , but all of them contained the 2 most conserved motifs .