ClAPRT3-Mediated Adenine Salvage Pathway Enhances Purine Metabolites to Sustain Seed Vigour During Selfing in Cunninghamia lanceolata.

ABSTRACT: Selfing often causes inbreeding depression, especially during seed and seedling stages. However, some selfed progeny show low inbreeding depression with enhanced vigour, differing from inbred counterparts. This study investigates the molecular mechanisms maintaining seed vigour during selfing in Cunninghamia lanceolata. Evaluation showed that selfed seeds had medium vigour compared to other inbred and non-inbred seeds. Transcriptome analysis revealed similar gene expression patterns in the radicles and hypocotyls of inbred seeds. GO enrichment analysis identified adenine salvage as a key pathway related to seed vigour in selfed seeds. Purine metabolites (AMP, ADP, ATP) were higher in inbred seeds with better vigour, correlating with increased APRT enzyme activity. APRT inhibition by 6-diam

SUBMITTER: Deng H 

PROVIDER: S-EPMC12906808 | biostudies-literature | 2026 Feb

REPOSITORIES: biostudies-literature