The effect of carp EGG-mRNA on the transformation of goldfish tail.

Poly A attached mRNA was prepared from carp's mature ovarian eggs. When injected into fertilized eggs from different strains of goldfish, it mediated tail transformation from the double to single. The frequency varied according to the strain of goldfish. This discovery provides new information not only supporting but also expanding the previous report that crucian egg-mRNA mediated tail transformation in goldfish.