Transcriptomic Responses to Chilling Reveal Potential Chilling Tolerance Mechanisms in Cucumber.

ABSTRACT: Chilling is a devastating stress that has led to a crisis of production for cucumber (Cucumis sativus L.). To determine the molecular mechanisms underlying chilling responses in cucumber, we investigated physiological changes and transcriptomic responses to chilling stress in the chilling-tolerant inbred line CC and chilling-susceptible inbred line R1461. Physiological analysis showed that CC had a higher survival rate, lower H₂O₂ accumulation, and ion leakage than R1461 after chilling treatment. RNA-seq analysis identified 938 differentially expressed genes (DEGs) in response to chilling and revealed that chilling stress regulated the transcript levels of genes related to hormones, including auxin, salicylic acid (SA), jasmonic acid (JA), and ethylene. RT-qPCR

SUBMITTER: Wang X 

PROVIDER: S-EPMC9657649 | biostudies-literature | 2022 Oct

REPOSITORIES: biostudies-literature