Fish Switch: Salmon make baby trout after species, sex swap | Science News

ADVERTISEMENT

MISSION CRITICAL

Support credible science journalism.

Subscribe to Science News today.


News

Fish Switch: Salmon make baby trout after species, sex swap

By
10:49am, September 12, 2007

Biologists have implanted male-reproductive tissue from rainbow trout into male and female salmon, which then bred a new generation of baby trout.

In male-salmon recipients, the trout tissue produced sperm, but in female salmon, the same tissue produced eggs, says Goro Yoshizaki of the Tokyo University of Marine Science and Technology. These surrogate parents produced trout that grew up to breed in the usual way, Yoshizaki and his colleagues report in the Sept. 14 Science.

This article is available only to subscribing members. Join the Society today or Log in.

Get Science News headlines by e-mail.

More from this issue of Science News

[title_1]