Surrogate broodstock produces salmonids

Trout offspring can be created from trout-donor germ cells transplanted into salmon.


A worldwide decline in the number of wild salmonids1 calls for strategies to restore endangered populations. Here we show that germ cells can be transplanted between two different salmonid species, with the subsequent production of xenogenic, donor-derived offspring. This pioneering xenotransplantation technology may eventually find applications in facilitating the production of commercially valuable fish, as well as in species conservation.

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Figure 1: Colonization, proliferation and germline transmission of donor-derived trout germ cells transplanted into salmon embryos.
Figure 2


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Correspondence to Goro Yoshizaki.

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Takeuchi, Y., Yoshizaki, G. & Takeuchi, T. Surrogate broodstock produces salmonids. Nature 430, 629–630 (2004).

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