gene is directly related to animal growth, its mutation will significantly influence the animal growth properties such as body weight, body length, so it becomes preferred gene in the study of animal molecular breeding. We identified 7 single nucleotide polymorphisms (SNPs) from a fragment of the Paralichthys olivaceusC477T, 1 091–1 092/insert T, 1 129–1 130/insert A; and 3 in the exon 067T/-del, A2006C, A1974G)Japanese flounder. C477T (Intron I) and 2067 t/del (Exon V) effect on body weight, body length, body depth growth traits were significant ( gene relation to production performance in Japanese flounder.