Abstract: Relationships among three mustela vison species which were standardpitchy mink、sapphire mink、coffee mink were analyzed by RAMP Markers. The results showed distinct genetic differences were present among the species, and polymorphic percentage was very high. Fourteen primer combinations produced 81 bands, 75 bands were polymorphic. The polymorphic percentage was 92.59%, 4~8 bands were amplified by each primer combinations, with an average of 5.78 bands. Polymorphic bands percent 、Shannon’s Information index、Nei’s (1973) gene diversity showed high genetic diversity. In population genetic differentiation analysis, Nei’s genetic distance and the coefficient of gene differentiation were used and the results showed that the genetic differentiation degree between populations was lower and the hereditary variation primarily came from within population.

Key words: mink; RAMP; genetic diversity