Molecular characterization and expression analysis of cDNAs encoding four Rab and two Arf GTPases in the latex of Hevea brasiliensis

► The cDNAs of four Rab and two Arf GTPases were cloned in Hevea brasiliensis. ► Homology analysis and GTP-binding assay demonstrated their identity. ► All genes were expressed in diverse tissues and upregulated by tapping. ► HbRab1 and HbArf2 expression were upregulated by both wounding and methyl jasmonate. ► The hints were provided for the involvement of HbRab1 in latex regeneration.