In M. anguillicaudatus, they were localized in the No.9 and No.6 telocentric chromosome respectively, the relative distance to centromere is 58.3%and 30.8%.

• 在泥鳅中，则分别位于t9和t6上，信息位点距着丝粒的相对距离分别为58.；3%25和30