首页|半夏热激因子HSF家族基因鉴定及生物信息分析

半夏热激因子HSF家族基因鉴定及生物信息分析

扫码查看
摘 要:为挖掘参与半夏(Pinellia ternata)高温倒苗的PtHSF基因,开展了半夏PtHSF的鉴定分析.结果表明,半夏中存在22个PtHSF基因家族成员,不均匀地分布在10条染色体上.PtHSF基因均含有HSF特征结构域(DBD保守结构域),系统进化树分析表明,PtHSF基因可分为三大亚类,同一亚类的PtHSF具有相似的基因结构和保守基序,并编码相似的氨基酸.亚细胞定位显示81.82%的PtHSF位于细胞核中,其余位于细胞外.共线性分析表明PtHSF基因家族只有一对共线性,且PtHSF与水稻OsHSF具有更近的同源进化关系.表达模式分析表明,PtHSF在不同组织部位的表达具有显著差异,多数成员在根和块茎中高表达;高温胁迫条件下,12个PtHSF受诱导表达,8个受高温抑制.
Identification and Bioinformatics Analysis of the HSF Family Gene in Pinellia ternata
In this study,the PtHSF genes involved in the high-temperature-induced ST of Pinellia ternata were identified and characterized.Twenty-two members of the PtHSF gene family were accordingly identified in P.ternata,which were unevenly distributed across its 10 chromosomes.All PtHSF genes were found to contain HSF-characteristic domains(DBD conserved domains),and phylogenetic tree analysis revealed that these genes can be divided into three major subclasses.PtHSF genes in the same subclass were established to have similar gene structures and conserved motifs,and encode similar amino acids.Subcellular localization prediction indicated that 81.82%of the PtHSF protein is located in the nucleus,with the remainder being distributed outside the cell.Collinearity analysis revealed that the PtHSF gene family has only a single collinear pair,and that PtHSF and rice OsHSF have a close homologous evolutionary relationship.Expression pattern analysis revealed that the expression of PtHSF family members differs significantly among different plant tissues,with most members being observed to be highly expressed in roots and tubers.In response to exposure to high temperature stress,the induced expression of 12 PtHSF genes and inhibited expression of eight PtHSF genes were detected.

Pinellia ternataHSFbioinformaticstranscription factorgene expression

尤倩、刘晓、刘梦梦、刘丹、伯晨、朱艳芳、段永波、薛建平、张爱民、薛涛

展开 >

淮北师范大学生命科学学院,安徽省特色资源植物利用工程实验室,安徽淮北 235000

半夏 HSF 生物信息学 转录因子 基因表达

国家自然科学基金项目安徽省高校自然科学研究项目安徽省高校优秀创新团队项目

82274048KJ2021A05322022AH010029

2024

园艺学报
中国园艺学会 中国农业科学院蔬菜花卉研究所

园艺学报

CSTPCD北大核心
影响因子:1.127
ISSN:0513-353X
年,卷(期):2024.51(10)