Genomic signatures of SnRKs highlighted conserved evolution within orchids and stress responses through ABA signaling in the Cymbidium ensifolium.

ABSTRACT: Sucrose non-fermenting 1-related protein kinases (SnRKs) are crucial for modulating plant responses to abiotic stresses, linking metabolism with stress signaling pathways. Investigating the roles and stress responses of SnRKs in plants paves the way for developing stress-tolerant strategies in orchid species. Here, 362 SnRK members were identified from nine current orchid genomes, highlighting the conservation of these genes in evolution. Among these, 33 CeSnRKs were found across 20 chromosomes of C. ensifolium genome. Multiple duplication events increased the complexity of CeSnRKs during independent evolution. Moreover, distinct functional domains beyond the kinase domain differentiated the subfamilies. These multi-copy members existed tissue specific expressions falling into 6 main trend

SUBMITTER: Zheng R 

PROVIDER: S-EPMC11874761 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature