Malic enzyme, an “old-new player” in age at maturity in Atlantic salmon

Traditional genetic markers based on allozyme variation had indicated that in Atlantic salmon the found for locus coding mMEP-2* could be adaptive, with being related to river water temperature, growth, and maturation. More recently, SNP panels used search genes maturation identified several genes, including vgll3 gene early However, none of analyses performed an association between already known mMEP-2*. Recently, a method has been developed characterize different alleles using molecular techniques. In this work we use study population Bidasoa River, located Iberian Peninsula, which is limit distribution species. We relationship presence G, equivalent 125* allele, both males females. It possible not direct but produced by differential growth during juvenile and/or adult phase. also plausible exclusive populations Peninsula.