Virus-Specific Defense Responses in Sweetpotato: Transcriptomic Insights into Resistance and Susceptibility to SPFMV, SPCSV, and SPVD.

ABSTRACT: Sweetpotato (Ipomoea batatas L. Lam) production is threatened by complex viral diseases, notably sweet potato virus disease (SPVD) worldwide, which results from co-infection by sweet potato feathery mottle virus (SPFMV) and sweet potato chlorotic stunt virus (SPCSV). This study provides virus-specific transcriptomic insights into the immune responses of three sweetpotato cultivars, 'Beauregard', 'Tanzania', and 'New Kawogo', to SPFMV, SPCSV, and SPVD. Using RNA-seq profiling across three timepoints post-infection at 3, 6, and 12 weeks, we identified distinct virus- and genotype-specific gene expression responses. 'New Kawogo' activated early and sustained immune pathways involving redox regulation, transcriptional control, and hormonal signaling in response to both SPC

SUBMITTER: Adero J 

PROVIDER: S-EPMC12650080 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature