Journal of Plant Molecular Breeding

Expression of miR9863a in responsing to drought stress in some wheat and Aegilops species

Document Type : Original research paper

Authors

1 Department of Production Engineering & Plant Genetics, University of Zanjan, Iran.

2 Agricultral & Natural Resourses Collage, University of Tehran, Karaj, Iran

Abstract

MicroRNAs are small RNAs known for their essential roles in regulating both biotic and abiotic stress responses. Drought stress poses a significant challenge to wheat productivity in Iran. The present study evaluated the expression of miR9863a and its target genes in wheat, as well as three Aegilops species under drought stress. The results revealed differential expression of miR9863a in the shoots of the studied plants under drought stress conditions. Specifically its expression was increased in Ae. tauschii and Ae. crassa, while decreasing in Ae. cylindrica. The observed differential expression could be explained by the inherent nature of miRNA as a mediator molecule in various biological processes. Analyzing the expression pattern of miR9863a and its target genes in Ae. tauschii suggests that the effect of miR9863a in response to drought stress may be attributed to PLGG1, impacting glycerate/glycolate transfers and SAR1A,  influencing trafficking of transcription factors from the endoplasmic reticulum to the nucleus. In addition to complementing previous studies on the role of miR9863 in countering plant diseases, the results presented here  illustrate how this miRNA assists the abiotic stress-response mechanism in plants, particularly in the context of drought stress. 

Keywords

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Journal of Plant Molecular Breeding
Volume 10, Issue 1
June 2022
Pages 22-34
  • Receive Date: 21 December 2022
  • Revise Date: 08 May 2023
  • Accept Date: 15 May 2023
  • First Publish Date: 15 May 2023