One of the problems for farming cod, is early sexual maturation, as the fish mature, energy is allocated to gonad production which reduces muscle growth and fillet quality. Hanne Johnsen in her PhD thesis has studied genes and regulators associated with sexual development in Atlantic cod. In order to control sexual maturation, it is crucial to map the essential biological mechanisms involved. In this respect, Hanne Johnsen’s thesis has increased the basic knowledge about this process.
The PhD project has identified several genes differentially regulated between male and female cod during sexual development. The PhD candidate establishes that the dmrt1 gene is central to the development of males, while the formation of estrogen in females is regulated by the cyp19a1a gene. Five different dmrt genes were found in the cod genome, and analyses of the surrounding genes in different vertebrates revealed the evolution of this gene family. Read more ...
This blog is written by Martin Little, The Aquaculturists, published and supported by the International Aquafeed Magazine from Perendale Publishers. To get your copy of 'PPLAPP' click here.
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| Cod farm |
This blog is written by Martin Little, The Aquaculturists, published and supported by the International Aquafeed Magazine from Perendale Publishers. To get your copy of 'PPLAPP' click here.
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