盐胁迫下盐穗木miR393b与预测靶基因HcTIR1的表达及相关性

doi:10.6048/j.issn.1001-4330.2019.04.013

新疆农业科学 ›› 2019, Vol. 56 ›› Issue (4): 707-713.DOI: 10.6048/j.issn.1001-4330.2019.04.013

• 作物遗传育种·种质资源·分子生物学·生理生化 • 上一篇下一篇

盐胁迫下盐穗木miR393b与预测靶基因HcTIR1的表达及相关性

王鹏举, 黄世平, 杨瑞瑞, 曾幼玲

新疆大学生命科学与技术学院/新疆生物资源基因工程重点实验室,乌鲁木齐830046

收稿日期:2019-02-02 出版日期:2019-04-20 发布日期:2019-07-08
通信作者: 曾幼玲(1971-),女,四川人,教授,硕士生导师,研究方向植物的逆境生理和分子机制,(E-mail)zeng_ylxju@126.com
作者简介:王鹏举(1991-),男,甘肃庆阳人, 硕士研究生,研究方向为植物的逆境生理和分子机制,(E-mail)350733477@qq.com
基金资助:
国家自然科学基金(31760071,31160186)

Expression and Correlation Analysis of the Halophyte Halostachys caspica miR393b with Predictive Target Gene HcTIR1 under Salt Stress

WANG Peng-ju, HUANG Shi-ping, YANG Rui-rui, ZENG You-ling

Xinjiang Key Laboratory of Biological Resources and Genetic Engineering, College of Life Science and Technology, Xinjiang University, Urumqi 830046, China

Received:2019-02-02 Online:2019-04-20 Published:2019-07-08
Correspondence author: Zeng You-ling (1971- ), Female, Professor, Master adviser, Research direction is plant stress physiology and molecular mechanism, (E-mail) zeng_ylxju@126.com

摘要/Abstract

摘要： 【目的】研究盐胁迫下盐穗木生长素通路中miR393b和预测的靶基因TIR1的表达模式和相关性。【方法】采用生物信息学方法预测盐穗木miR393b的靶基因;通过qRT-PCR方法检测盐胁迫下盐穗木miR393b及预测靶基因HcTIR1(transport inhibitor response1)的相对表达模式,并分析其相关性。【结果】miR393b成熟体在不同植物种中高度保守;盐穗木miR393b预测的靶基因为TIR1;盐胁迫处理,盐穗木同化枝中两基因响应高盐胁迫,并具有一定的负相关性。【结论】盐穗木miR393b和预测的靶基因响应高盐胁迫,二者具有一定的负相关。该结果为进一步探讨盐穗木miR393b与预测靶基因TIR1的生物学功能奠定基础。

关键词: 盐穗木; 盐胁迫; miR393b; HcTIR1基因; 表达模式; 相关性

Abstract: 【Objective】 microRNA , as a kind of small endogenous non-coding RNA, affects plant various biological process by negatively regulating the expression of corresponding target genes. Halostachys caspica as a salt-diluted short shrub belonging to the Chenopodiaceae is distributed widely in acrid and saline-alkali region of Xinjiang and shows extreme salt-tolerance. In this study, the expression patterns and correlations of miR393b and the predicted target gene TIR1 of this species under salt stress were discussed.【Method】 The analysis of bioinformatics was used to predict the target gene using the H. caspica transcriptome data. The relative expression of Halostachys caspica miR393b and TIR1 was detected by qRT-PCR under salt stress using this species' branches and the correlation analysis was performed. 【Result】miR393b between different plant species is highly conserved through sequence alignment; The H.caspica branches miR393b and HcTIR1 responded to salt stress and showed a certain negative correlation under high sanility of 600 mM NaCl.【Conclusion】Halostachys caspica miR393b and the predictive target gene responded to salt stress and both of them had a certain negative correlation under high salt concentration. The results of this study laid the foundation for further exploration of the biological function of miR393b and HcTIR1 in the halophyte Halostachys caspica.

Key words: Halostachys caspica; salt stress; miR393b; HcTIR1; expression patterns; correlation

中图分类号:

Q786
S188

王鹏举, 黄世平, 杨瑞瑞, 曾幼玲. 盐胁迫下盐穗木miR393b与预测靶基因HcTIR1的表达及相关性[J]. 新疆农业科学, 2019, 56(4): 707-713.

WANG Peng-ju, HUANG Shi-ping, YANG Rui-rui, ZENG You-ling. Expression and Correlation Analysis of the Halophyte Halostachys caspica miR393b with Predictive Target Gene HcTIR1 under Salt Stress[J]. Xinjiang Agricultural Sciences, 2019, 56(4): 707-713.

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盐胁迫下盐穗木miR393b与预测靶基因HcTIR1的表达及相关性

Expression and Correlation Analysis of the Halophyte Halostachys caspica miR393b with Predictive Target Gene HcTIR1 under Salt Stress

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