Molecular mechanisms associated with rootstock-scion interactions in rubber trees.

ABSTRACT: Hevea brasiliensis (rubber tree) is the main source of natural rubber worldwide. In commercial plantations, high-yield rubber tree clones are propagated by grafting onto seedling rootstocks. In this study, the transcriptomes of the RRIM 600 clone grafted on different rootstocks in southeastern Brazil were evaluated. Exclusively expressed genes (EEGs) and differentially expressed genes linked to quantitative trait loci and coexpression networks were identified. The combination of an RRIM 600 scion (clone) with a non-clonal PB 235 rootstock resulted in the highest mean yield (76.03 g/tree dry rubber), followed by non-clonal IAN 873 rootstock (64.30 g/tree dry rubber). In the non-clonal IAN 873 rootstock combination, we identified the RPD3b gene, an EEG associated with the jasmonate pathway,

SUBMITTER: Lima Cunha W 

PROVIDER: S-EPMC12750404 | biostudies-literature | 2026 Mar

REPOSITORIES: biostudies-literature