欢迎访问《中国农学通报》,

中国农学通报 ›› 2021, Vol. 37 ›› Issue (36): 111-118.doi: 10.11924/j.issn.1000-6850.casb2021-0690

• 生物科学 • 上一篇    下一篇

甜菜BvGSTU9基因的生物信息学及在镉胁迫下的表达分析

周婉婷1,2(), 汪曼1,2, 周翔1,2, 高卓1,2,3, 李佳佳1,2, 李王胜1,2, 李思琪1,2, 王雪倩1,2, 王录红1,2, 刘大丽1,2()   

  1. 1国家甜菜种质中期库,黑龙江大学,哈尔滨 150080
    2省高校甜菜遗传育种重点实验室/现代农业与生态环境学院,黑龙江大学,哈尔滨 150080
    3黑龙江省普通高等学校分子生物学重点实验室/生命科学学院,哈尔滨 150080
  • 收稿日期:2021-07-14 修回日期:2021-08-13 出版日期:2021-12-25 发布日期:2022-02-15
  • 通讯作者: 刘大丽
  • 作者简介:周婉婷,女,1998年出生,浙江金华人,硕士研究生,研究方向:作物分子生物学。通信地址:150080 黑龙江省哈尔滨市南岗区学府路74号 黑龙江大学现代农业与生态环境学院,Tel:13282994711,E-mail: 905428635@qq.com
  • 基金资助:
    黑龙江省自然科学基金项目“BvHIPP24基因在能源甜菜重金属镉污染生物修复中的分子机制研究”(LH2019C057);黑龙江省高校基本科研业务费黑龙江大学专项资金项目“能源甜菜BvMPT11基因的Cd污染生物修复应答机制研究”(KJCX201920);科技部财政部国家科技资源共享服务平台项目“国家作物种质资源库甜菜分库运行服务”(NCGRC-2021-017);农作物种质资源保护与利用专项”甜菜种质资源的收集、鉴定、编目、繁种与入库(圃)保存(”1921-026);黑龙江省普通本科高等学校青年创新人才培养计划“甜菜抗旱遗传资源评价及优异基因挖掘”(UNPYSCT-2020014)

BvGSTU9 Gene in Sugar Beet: Bioinformatics and Expression Analysis Under Cadmium Stress

ZHOU Wanting1,2(), WANG Man1,2, ZHOU Xiang1,2, GAO Zhuo1,2,3, LI Jiajia1,2, LI Wangsheng1,2, LI Siqi1,2, WANG Xueqian1,2, WANG Luhong1,2, LIU Dali1,2()   

  1. 1National Beet Medium-term Gene Bank, Heilongjiang University, Harbin 150080
    2Key Laboratory of Sugar Beet Genetics and Breeding of Heilongjiang Province/College of Modern Agriculture and Ecological Environment, Heilongjiang University, Harbin 150080
    3Key Laboratory of Molecular Biology of Heilongjiang Province, School of Life Sciences, Heilongjiang University, Harbin 150080
  • Received:2021-07-14 Revised:2021-08-13 Online:2021-12-25 Published:2022-02-15
  • Contact: LIU Dali

摘要:

为了进一步研究甜菜谷胱甘肽转移酶BvGSTU9 (LOC104894060)在重金属胁迫过程中的功能。本研究以‘780016B/12优’为实验材料,对该基因序列特征、结构、功能进行预测分析,并利用qPCR检测该基因在不同浓度镉胁迫下的表达量变化。结果显示甜菜BvGSTU9基因全长925 bp,开放阅读框675 bp,编码了由224个氨基酸组成的不稳定膜外蛋白。BvGSTU9与菠菜、藜麦的氨基酸序列相似性较高,与系统发育进化树分析结果基本相符。二级和三级结构预测表明该基因主要由α-螺旋、β-折叠、延伸链及无规则卷曲组成。qPCR显示BvGSTU9基因在不同浓度的镉胁迫下均受到不同程度的诱导,因此可以推断甜菜BvGSTU9基因无论从结构还是功能上,与镉逆境胁迫存在着一定的应答关系。研究结果也为甜菜耐重金属镉机制研究提供参考依据。

关键词: 甜菜, BvGSTU9基因, 生物信息学, 镉胁迫, 表达特性

Abstract:

To further study the function of BvGSTU9 (LOC104894060) during the heavy metal stress in sugar beet (Beta vulgaris L.), ‘780016B/12You’ was chosen as the plant material in this study to forecast and analyze the sequence characteristics, structure and function of the gene. In addition, quantitative real time polymerase chain reaction (qRT-PCR) was used to detect the changes of expression under different concentrations of cadmium stress. The results show that the whole length of BvGSTU9 gene is 925 bp, and the open reading frame is 675 bp, encoding an unstable extracellular protein composed of 224 amino acids. The amino acid sequence of BvGSTU9 is similar to that of spinach and quinoa, and it is almost consistent with the phylogenetic evolution tree analysis. The prediction of the secondary structure and the tertiary structure indicate that the gene is mainly composed of α-Spiral, β-Folding, extending chain and irregular curling. qRT-PCR analysis show that BvGSTU9 gene is induced in different degrees by different concentrations of cadmium stress. Therefore, it can be inferred that the BvGSTU9 gene in sugar beet has a certain response relationship with cadmium stress both in structure and function. The results also provide a certain reference basis for the study on the mechanism of heavy metal cadmium tolerance of sugar beet.

Key words: sugar beet, BvGSTU9 gene, bioinformatics, cadmium stress, expression characteristic

中图分类号: