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Genome-wide characterization of drought-responsive long non-coding RNAs in sorghum (Sorghum bicolor)

文献类型： 外文期刊

作者： Zou, Chunlei 1 ; Zhao, Shanshan 1 ; Yang, Bohui 1 ; Chai, Wenting 1 ; Zhu, Lixun 1 ; Zhang, Chunlai 1 ; Gai, Zhijia 2 ;

作者机构： 1.Shanxi Agr Univ, Coll Agron, Taigu 030800, Shanxi, Peoples R China

2.Heilongjiang Acad Agr Sci, Jiamusi Branch, Jiamusi 154000, Peoples R China

关键词： Drought; Sorghum; Long non-coding RNA (lncRNA); Target gene; Flavonoid biosynthesis; Abiotic stress resistance

期刊名称：PLANT PHYSIOLOGY AND BIOCHEMISTRY （ 影响因子：6.1； 五年影响因子：6.2 ）

ISSN： 0981-9428

年卷期： 2024 年 214 卷

页码：

收录情况： SCI

摘要： Drought stress strongly affects crop yield. Although knowledge of long non-coding RNAs (lncRNAs) has been updated continuously and rapidly, information about lncRNAs in drought resistance regulation is extremely limited in sorghum. Here, lncRNA-sequencing was performed with seedlings of a sorghum cultivar (Jinza29) under three water control treatments to investigate the mechanism of lncRNAs responsible for drought resistance in sorghum. A total of 377 differentially expressed lncRNAs (DElncRNAs) were identified. We also predicted 4322 and 2827 transcripts as potential cis-target and trans-target genes for drought-responsive lncRNAs, respectively. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis showed that those target genes exhibited marked enrichment into "oxidoreductase activity", "signal transducer activity", "DNA repair", "photosynthesis", "glutathione metabolism", and "phenylpropanoid biosynthesis" and other terms associated with abiotic stress resistance. Moreover, several lncRNAs were estimated to modulate the expression of other genes related to stress response and photosynthetic carbon metabolism. Additionally, we found 107 DElncRNAs that might be candidate target mimics for 56 miRNAs. LncRNAs play important roles in drought adaptation of sorghum through interacting with protein-encoding genes. The obtained results provided novel insights into the biological characteristics of lncRNAs and offered potential regulatory factors for genetically enhancing drought resistance in sorghum.

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