Method for producing fish gametes for cultured fish production using surrogate parent fish, which is applicable to parent species of another genus fish species

摘要

The present invention addresses the problem of providing a method for producing fish gametes in techniques of farmed fish production using a surrogate parent fish, said method being applicable to a surrogate parent fish of a different species and thus broadening the scope of fish species usable as the surrogate parent fish. To solve this problem, provided is a method for producing fish gametes using a surrogate parent fish, said method comprising: hybridizing a first fish, which can serve as a surrogate parent fish for a donor fish, with a second fish, which cannot serve as a surrogate parent fish for the donor fish, to construct a hybrid fish capable of serving as a surrogate parent fish for the donor fish; and, using the hybrid fish thus constructed as a recipient, transplanting separated germ cells of the donor fish thereinto and thus inducing differentiation to a germ cell line.