Functional conservation and divergence of duplicated the suppressor of cytokine signaling 1 in blunt snout bream (Megalobrama amblycephala).

•Duplicated socs1 gene were identified in blunt snout bream.•Both socs1a and socs1b were expressed in all the throughout embryogenesis and tested tissues of blunt snout bream.•Both SOCS1a and SOCS1b inhibition of GH and JAK-STAT pathway.•Inhibitory effect of SOCS1s on GH may be involved in JAK-STAT signaling pathway.