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Japan - May 28, 2002 Source: FIS.com - Haruo Chiba - FIS Japan

Researchers make breakthrough in farmed fish mutations

Researchers have announced the discovery of a gene that is said to be necessary for the normal growth of fish.

The Fisheries Research Agency working in tandem with the Japan Science Foundation and National Institute of Genetics has succeeded in isolating the gene that triggers fused somites, the cause of which has puzzled researchers for many years.

The study group used zebrafish in the experiment. Regular build-up of somites, which later form the vertebrae and flesh of the fish, is indispensable for normal growth. Details of the discovery are to be published in the US science magazine Nature on 10 June.


The study group used zebrafish in the experiment. (Photo:ZFin)

The new gene – titled “T-box 24" – has been unknown up to now in other vertebrates.

Another four types of somite mutation are known in vertebrates, but the mutation leading to “fused somites” is the most pronounced.

According to the Fisheries Research Agency, the discovery will make a great contribution to the healthy growth of farmed fish.

Details of the research are available on http://www.fra.affrc.go.jp  (Japanese Website)

FIS.com 

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