<i>SnRK</i>-<i>PP2C</i>-<i>PYL</i> Gene Families in <i>Citrus sinensis</i>: Genomic Characterization and Regulatory Roles in Carotenoid Metabolism.

ABSTRACT: Background/Objectives: Carotenoids in citrus are vital nutritional compounds and precursors of the stress hormone abscisic acid (ABA). SNF1-related kinases (SnRKs)-key regulators of plant stress signaling that phosphorylate is targeting proteins for post-transcriptional regulation-mediate ABA signaling through its subfamily SnRK2-phosphatase type-2C (PP2C)-PYR1-LIKE (PYL) cascades. This study aims to identify the SnRK-PP2C-PYL family members and decipher their underlying post-transcriptional regulatory mechanisms which control carotenoid metabolism in Citrus sinensis for improved nutrition and stress resilience. Methods: SnRK, PP2C, and PYL were identified by integrated HMMER-blastp-CDD pipeline in the Citrus genome. Using two carotenoid-divergent cultivars, 'Ne

SUBMITTER: Lu P 

PROVIDER: S-EPMC12471423 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature