Journal
PLANT PHYSIOLOGY AND BIOCHEMISTRY
Volume 162, Issue -, Pages 221-236Publisher
ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER
DOI: 10.1016/j.plaphy.2021.02.031
Keywords
Long non-coding RNA; Capsicum annuum; Abiotic stress; microRNA; Target mimic; Transcription factor
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Funding
- Science and Engineering Research Board [ECR/2017/000710]
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Long non-coding RNAs in Capsicum annuum tissues interact with miRNAs to regulate stress responsive transcription factors and participate in modulating biological processes under different abiotic stress conditions.
Long non-coding RNAs (lncRNAs) are a type of non-coding transcripts having length of more than 200 nucleotides lacking protein-coding ability. In the present study, 12807 lncRNAs were identified in Capsicum annuum tissues exposed to abiotic stress conditions viz. heat, cold, osmotic and salinity stress. Expression analysis of lncRNAs in different treatment conditions demonstrates their stress-specific expression. Thirty lncRNAs were found to act as precursors for 10 microRNAs (miRNAs) of C. annuum. Additionally, a total of 1807 lncRNAs were found to interact with 194 miRNAs which targeted 621 mRNAs of C. annuum. Among these, 344 lncRNAs were found to act as target mimics for 621 genes. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis revealed that out of those 621 gene sequences, 546 were tagged with GO terms, 105 Enzyme Code (EC) numbers were assigned to 246 genes and 223 genes are found to be involved in 63 biological pathways. In this report, we have highlighted the prospective role of lncRNAs in different abiotic stress conditions by interacting with miRNAs and regulating stress responsive transcription factors (TFs) such as DoF, WRKY, MYB, bZIP and ERF in C. annuum.
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