江西农业学报2023，Vol.35Issue(11)：40-50,11.DOI:10.19386/j.cnki.jxnyxb.2023.11.007
芥菜BjuBBX基因家族全基因组鉴定与分析
Genome-wide Identification and Analysis of BjuBBX Gene Family in Brassica juncea
摘要
Abstract
BBX proteins are a class of zinc-finger transcription factors in plants,which are mainly involved in plant processes such as seed germination,hypocotyl growth,flowering,circadian rhythm and stress response.Here,82 BjuBBX family genes were identified by screening the genomic data of Brassica juncea and software such as TBTools,and they could be classified into five groups,with high population specificity.Chromosome distribution and covariance analysis indicated that gene duplication events were crucial for the amplification of BjuBBX genes in the B.juncea genome.Their functional divergence probably resulted from the variations in evolutionary rates and amino acid properties among group classes.Meanwhile,cis-acting element analysis demonstrated that the promoters of BjuBBX genes were enriched in the cis-elements about light signaling,hormone response and stress response.Furthermore,based on the transcriptome data from stem expansion,high temperature and drought stress,BjuBBX genes in Group Ⅰ were highly expressed during stem expansion and had spatial-temporal specificity at different stages.The expression of BjuBBX8-3,BjuBBX11,and BjuBBX24-4 in B.juncea responded positively to high temperature and drought stress,indicating that they probably played important roles in the environmental stress.The results lay the foundation for further elucidating the biological functions of the BjuBBX genes in B.juncea.It also can be used as a reference for the biological breeding of cruciferous crops.关键词
芥菜/BjuBBX家族/锌指转录因子/全基因组解析/表达分析Key words
Brassica juncea/BjuBBX family/Zinc-finger transcription factor/Genome-wide analysis/Expression analysis分类
农业科技引用本文复制引用
翟海涛,余月,陈蕾,魏大勇,王志敏,沈进娟,汤青林..芥菜BjuBBX基因家族全基因组鉴定与分析[J].江西农业学报,2023,35(11):40-50,11.基金项目
重庆市技术创新与应用发展专项(cstc2021jscx-gksbX0021) （cstc2021jscx-gksbX0021）
重庆市大学生创新创业训练计划项目(s202210635200) （s202210635200）
重庆市涪陵区农业科技现代先行区县项目"芥菜(茎瘤芥)现代生物技术育种". （茎瘤芥）
