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HAVBRUKS-Havbruk - en næring i vekst

Control of sex in Atlantic halibut: Towards production of monosex all-female stocks

Tildelt: kr 3,0 mill.






2005 - 2009

Producing all-female market-sized Atlantic halibut shows high potential to the industry because of sexual growth dimorphism in this species. It is proposed to undertake multidisciplinary research on mechanisms and control of sex determination and differen tiation in halibut in order to develop the strategy to produce monosex all-female stocks. The project involves several research groups with relevant expertise in the different research areas. We will search for sex-specific DNA sequences and conduct thoro ugh cytogenetics research to better understand sex determination.. We will induce gynogenetic development to verify female homogamety and to obtain genetically all-female progeny. We will undertake extensive research on altering phenotypic sex (sex revers al) in order to produce masculinized females (neo-males). The cell- and molecular-level effects of various agents on endocrine sex control will be investigated. Different strategies to produce all-female stocks will be examined. It is anticipated that the project will result in (i) substantial knowledge of genetic and endocrine sex control mechanisms in Atlantic halibut, (ii) development of efficient protocols to produce all-female halibut, and (iii) establishing neo-male broodstocks.


HAVBRUKS-Havbruk - en næring i vekst