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榛子SBP基因家族鉴定及其系统进化和表达分析 预览

Identification,systematic evolution and expression analysis of SBP gene family in hazelnut
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摘要 SBP蛋白是植物所特有的一类转录因子,并广泛存在于植物中.研究发现,该基因家族成员参与响应包括植物生长、发育和抗逆等生物学过程,其功能研究具有重要意义.榛子是一种主要以果实为产品的重要经济林木,且该物种SBP基因家族的研究也未见报道.本研究以生物信息学手段为基础,结合转录组数据,从中筛选得到10个榛子SBP-like基因(SPL基因),并对其编码蛋白理化性质、保守区域和模体进行预测和分析,进而对基因家族进化关系和花发育不同时期表达水平进行了分析.结果表明:榛子的10个SPL基因可以分为5个大组群;均含有该基因家族所特有的C3H和C2CH结构域以及一个核定位信号;同时,基于花发育不同时期的转录组数据分析,部分成员在不同时期表达水平存在显著差异,预示该基因可能与花果发育有关.该研究将有助于榛子SPL基因参与其花果发育分子调控机制的深入研究. SBP protein is a kind of transcription factor unique to plants,and widely exists in plants.It was found that the members of the gene family were involved in the biological processes of plant growth,development and stress resistance,and the functional study of the gene family was of great significance.Hazelnut is an important economic tree mainly based on fruit,and the study of SBP gene family of hazelnut has not been reported.In this study,10 SBP-like genes(SPL genes)were screened in hazelnut based on bioinformatics,and the physicochemical properties,conserved regions and motifs of the encoded proteins were predicted and analyzed,and then the evolutionary relationship and expression level of the gene family were analyzed.The results showed that the 10 SPL genes of hazelnut could be divided into two large groups,all of which contained C3H and C2CH domains and a nuclear localization signal unique to the gene family.Based on the transcriptome data at different stages of flower and fruit development,there were significant differences in the expression levels of some members at different stages,indicating that the gene may be related to flower and fruit development.This study will contribute to the further study of hazelnut SPL gene in flower and fruit development.
作者 张兴政 朱凯丽 程云清 ZHANG Xing-zheng;ZHU Kai-li;CHENG Yun-qing(College of Life Science,Jilin Normal University,Siping 136000,China)
出处 《吉林师范大学学报:自然科学版》 2020年第1期114-120,共7页 Jilin Normal University Journal:Natural Science Edition
基金 国家自然科学基金项目(31770723,31370683)。
关键词 榛子 SBP基因家族 基因鉴定 系统进化 表达分析 hazelnut SBP gene family gene identification systematic evolution expression analysis
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