Phylogenetic analysis of C. nasus SS1 amino acid sequences. Scale bar indicates the substitution rate per residue. Numbers at nodes indicate the bootstrap value as percentages obtained for1000 replicates. GenBank accession numbers: Clupea harengus SS1 (XP_012673158.1); Ictalurus punctatus SS1 (NP_001187259.1); Tachysurus vachellii SS1 (ADX32485.1); Danio rerio SS1 (AAH76254.1); Latimeria chalumnae SS1 (XP_005992512.1); Ctenopharyngodon idella SS1 (ACB69423.1); Carassius auratus SS1 (AAD09359.1); Megalobrama pellegrini SS1 (AAO92644.1); Chitala chitala SS1 (AAK97070.2); Acipenser sinensis SS1 (ACN88148.1); Epinephelus coioides SS1 (AAU93565.1); Oryzias latipes SS1 (XP_004084505.1); Sparus aurata SS1 (AFO52507.1); Homo sapiens SS1 (AAH32625.1); Pan troglodytes SS1 (JAA20675.1); Mus musculus SS1 (EDK97673.1); Gallus gallus SS1 (CAA42747.1); Latimeria chalumnae SS2 (XP_005994064.1); Ctenopharyngodon idella SS2 (ACB69425.1); Carassius auratus SS2 (AAD09631.1); Acipenser sinensis SS2 (ACN88149.1); Epinephelus coioides SS2 (AAU93567.1); Oryzias latipes SS2 (XP_004084506.1); Ctenopharyngodon idella SS3 (ACB69424.1); Carassius auratus SS3 (AAD09626.1); Chitala chitala SS3 (AAV48555.1); Epinephelus coioides SS3 (AAU93566.1); Oryzias latipes SS3 (ALD51535.1).