نهمین کنفرانس ملی و اولین کنفرانس بین المللی فیزیولوژی گیاهی

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کد مقاله 1025

عنوان Decoding the Transcriptomic Response of Cucumber (Cucumis sativus) Roots to Waterlogging

نویسندگان Zahra Zinati - Farideh Farahbakhsh - Zahra Amjadi

چکیده Waterlogging induces growth and developmental changes in cucumbers during early plant development. In this study, the transcriptional response of cucumber (Cucumis sativus) roots to waterlogging stress was investigated using RNA-Seq. Analysis of RNA-Seq data (PRJNA678740) from twelve samples using the Galaxy platform (https://usegalaxy.org) showed a clear separation between control and waterlogging treatments in principal component analysis (PCA). Our analysis revealed 15 genes with significantly altered expression levels, exceeding a 256-fold increase under stress conditions. Key identified genes were the defensin gene Ec-AMP-D2, several expansin-like genes involved in cell wall modification, the signaling-related ankyrin repeat-containing protein ITN1, and early nodulin-93. The dramatic increase in the expression of expansin-like genes highlighted their pivotal role in cell wall adaptation. Their marked upregulation suggests a possible involvement in modifying cell wall properties as an adaptive response to the waterlogging conditions of cucumber roots. Also, significant increase in expression was observed in genes involved in cell wall remodeling (xyloglucan endotrans-glucosylase / hydrolase 26 protein), stress signaling (ERF098 transcription factor), oxidative stress response (peroxidase 5), and metabolic adaptation (FHIT gene). The results of our study provide a comprehensive understanding of the genetic pathways and molecular mechanisms involved in the response of cucumbers to waterlogging.

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