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Whole transcriptome sequencing-based identification and functional prediction of salt-tolerant-related circular RNAs in ZM-4 (Malus zumi)

文献类型： 外文期刊

作者： Liu, Zhao 1 ; Lu, Xiang 1 ; Guo, Hanxin 2 ; Shang, Wei 2 ; Gao, Yuan 2 ; Sun, Simiao 2 ; Wang, Kun 2 ; Tian, Wen 1 ; Wang, Lin 2 ; Li, Zichen 2 ; Li, Lianwen 2 ; Niu, Jianxin 1 ; Wang, Dajiang 2 ;

作者机构： 1.Shihezi Univ, Coll Agr, Xinjiang Prod & Construct Corps Key Lab Special Fr, Shihezi 832000, Xinjiang, Peoples R China

2.Chinese Acad Agr Sci, Res Inst Pomol, Key Lab Hort Crops Germplasm Resources Utilizat, Minist Agr & Rural Affairs, Xingcheng 125100, Liaoning, Peoples R China

关键词： Malus zumi; circRNA; Salt stress

期刊名称：INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES （ 影响因子：8.5； 五年影响因子：8.7 ）

ISSN： 0141-8130

年卷期： 2025 年 306 卷

页码：

收录情况： SCI

摘要： CircRNAs, are a class of covalently closed non-coding RNAs; they have been identified in many plants and play an important role in the response to abiotic stresses. However, little is known about the response of the circRNAs of salt-tolerant apple rootstock resources in response to salt stress. In this study, the leaves and roots of the salttolerant Malus resource, ZM-4, and the salt-sensitive rootstock M9T337, were used as test materials and were exposed to 75 mmol/L NaCl stress for 0 h and 24 h. A total of 2502 circRNAs were identified, and 218 and 242 circRNAs were uniquely expressed in M9T337 and ZM-4, respectively. Furthermore, it was shown that the upregulated parental genes of the differentially expressed circRNAs were enriched in the metabolic pathways and the biosynthesis of secondary metabolites pathway in the leaves and roots of ZM-4 under salt stress, respectively. There were potential regulatory networks of ceRNA among 150 circRNAs, 139 miRNAs, and 397 mRNAs. Novel_circ_000845 and novel_circ_000266 could target and inhibit the expression of mdm-miR156 and up-regulate the expression of the salt-responsive gene SPL6. Six circRNAs, including novel_circ_000898 and novel_circ_001519, could target and inhibit the expression of mdm-miR10995 and up-regulate the expression of the salt-responsive gene COBL7. In conclusion, this study laid the foundation for the post-transcriptional molecular regulation mechanism of salt tolerance in apple rootstock resources.

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