大白菜脱水素基因的鉴定和特征分析  

Identification and Charaterization of Chinese Cabbage Dehydrin Genes

作　　者：李利斌 刘明毓 孟昭娟 曹齐卫 孔令霞 白林红 杨宗辉 

机构地区：[1]山东省农业科学院蔬菜花卉研究所,国家蔬菜改良中心山东分中心,山东省设施蔬菜生物学重点实验室,农业部黄淮地区蔬菜科学观测实验站(山东),山东 济南 [2]山东省东平县种业发展中心,山东 泰安 [3]山东省郓城县陈坡乡政府,山东 菏泽 [4]山东省农业农村发展研究中心,山东 济南

出　　处：《农业科学》2023年第9期857-864,共8页Hans Journal of Agricultural Sciences

摘　　要：植物脱水素在非生物逆境响应过程中具有重要功能。但在我国重要蔬菜作物大白菜中缺乏研究。本文利用生物信息学的方法,鉴定出12个大白菜脱水素基因,对它们的结构特征、遗传进化和顺式调控元件进行了预测。结果显示,大白菜的脱水素基因在基因组中非均衡分布,大部分基因含有两个外显子,所有的大白菜脱水素可划分为两个不同的类群,其中BrDhn4单独为一个类群。顺式元件预测表明,大白菜脱水素基因含有多个响应环境和激素信号的顺式元件,可能在非生物逆境以及植物激素响应中具有一定功能。Plant dehydrins play important roles in the process of abiotic stress responses. However, the dehy-drin knowledge about the important vegetable—Chinese cabbage is scarce. In this paper, 12 dehydrin genes were identified in the Chinese cabbage genome through the bioinformatics method. Also, their structure, phylogeny and the cis-elements of them were analyzed. The results indicated that Chinese cabbage dehydrin genes are unevenly distributed in the genome, and most of them have 2 exons. They are divided into two phylogeny groups, and BrDhn4 is singly as one group. What’s more, Chinese cabbage dehdrin genes each have several different cis-elements responsive to different hormones and environmental stimuli, which suggests they may be involved in multiple abiotic stress and hormone responses.

关 键 词：大白菜 脱水素 结构 进化 顺式元件 

分 类 号：S63[农业科学—蔬菜学]