白桦SAUR基因家族鉴定及生物信息学分析
Identification and Bioinformatics Analysis of SAUR Gene Family in Betula platyphylla
刘超逸 1王宇航2
作者信息
- 1. 赤峰学院化学与生命科学学院,赤峰,024000
- 2. 内蒙古赤峰市林业科学研究所,赤峰,024000
- 折叠
摘要
SAUR基因家族作为植物生长素早期响应基因家族中最大的一个家族,参与到植物细胞伸长、果实发育、胁迫应答等多个生物学过程.本研究基于白桦全基因组数据,对白桦SAUR基因家族进行鉴定和生物信息学分析.结果表明,白桦共有61个SAUR家族基因,这些基因不均匀分布在14条染色体上,理化性质分析表明,大部分BpSAUR蛋白呈碱性,为不稳定蛋白,脂溶性系数较高,为亲水性;系统进化和基因结构分析表明,61个白桦SAUR基因被分为4类(Group Ⅰ～GroupⅣ),其中GroupⅣ中BpSAUR基因最多,同一分类的BpSAUR基因更倾向于在染色体上聚集分布,大部分白桦SAUR家族基因为无内含子或少内含子基因.白桦SAUR家族基因启动子还拥有多个光响应、激素响应元件与逆境胁迫作用元件,说明其可能参与白桦生长发育及胁迫应答等多个生物学过程.该家族基因在白桦的不同组织部位和不同发育阶段的表达量也不同,主要在幼茎、成熟茎和成熟叶中集中表达.本研究通过对白桦SAUR基因家族进行深入分析,以期为白桦分子育种奠定良好基础.
Abstract
SAUK gene family,as the largest family ot plant auxin early response gene family,is involved in many biological processes such as plant cell elongation,fruit development,stress response and so on.Based on the whole genome data of Betula platyphylla,this study identified and bioinformatics analyzed the SAUR gene family of Betula platyphylla.The results showed that there were a total of 61 SAUR family genes in Betula platyphylla,which were unevenly distributed on 14 chromosomes.Physical and chemical analysis showed that most of the Bp-SAUR proteins were alkaline and unstable,with a high lipophilic coefficient and hydrophilicity;systemic evolu-tion and gene structure analysis indicate that 61 SAUR genes in Betula platyphylla are classified into 4 categories(Group Ⅰ to Group Ⅳ),with the highest BpSA UR gene in Group Ⅳ.BpSAUR genes in the same category tend to aggregate and distribute on chromosomes.Most of the SAUR family genes of Betula platyphylla are intron free or intron less genes.In addition,the SAUR family gene promoter of Betula platyphylla also has multiple light respon-sive,hormone responsive,and stress responsive elements,indicating that it may participate in multiple biological processes such as growth,development,and stress response.The expression of BpSAUR family gene is different in different tissue parts and different development stages,mainly concentrated in young stems,mature stems and ma-ture leaves.In this study,the SAUR gene family of Betula platyphylla was analyzed in order to lay a good founda-tion for molecular breeding of Betula platyphylla.
关键词
白桦/SAUR(Small/auxin-up/RNA)/全基因组/生物信息学分析Key words
Betula platyphylla/SAUR(Small auxin-up RNA)/Genome-wide/Bioinformatics analysis引用本文复制引用
基金项目
内蒙古自治区自然科学基金项目(2021LHBS03001)
赤峰学院重点实验室建设项目(CFXYZD202001)
出版年
2024
NETL
NSTL
万方数据