Tuesday, January 17, 2006

Gene Knowlegde helps in Search for Larger Trout

New genes that may regulate growth in rainbow trout to provide larger fish to a growing sector of the food industry have been discovered by Agricultural Research Service (ARS) scientists.

Molecular biologists Scott Gahr and Caird Rexroad III of the ARS National Center for Cool and Cold Water Aquaculture in Leetown, W.Va., are comparing genes known to be responsible for growth and development in mammals with similar genes in rainbow trout.

Gahr and Rexroad identified four new rainbow trout genes called Inhibitor of DNA Binding/Differentiation (ID) genes, and further characterized two previously identified genes.

The ID genes are involved with muscle growth and development. Knowing more about how these and other associated genes function could allow scientists to breed fish with more muscle--meaning more edible flesh for consumers.

The researchers developed and conducted tests for each of the rainbow trout ID genes to learn more about the specific roles they play in trout growth and development.

ID gene sequences have been entered into GenBank, the National Institutes of Health’s genetic sequence database, and expression patterns of the genes in different tissues and times during embryonic development were published in May 2005.

To facilitate progress in this research area, information on genes must be made available to any scientist interested in doing work that will help the rainbow trout industry, according to the researchers.


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AGRI-INFO/JANUARY 17, 2006



TITLE: GENE KNOWLEDGE HELPS IN SEARCH FOR LARGER TROUT


ALAM BA NINYO NA NATUKLASAN NG MGA EKSPERTO ANG BAGONG GENES NA MAAARING MAKAPAG-REGULATE SA PAGLAKI NG RAINBOW TROUT PARA MAGKAROON NG MAS MAGANDANG KALIDAD AT MAS MALAKING URI NG ISDA?

NAGAWANG PAGHAMBINGIN NINA MOLECULAR BIOLOGISTS SCOTT GAHR AT CAIRD REXROAD III ANG GENES NA KILALANG RESPONSIBLE SA PAGLAKI AT DEVELOPMENT SA MAMMALS NG KATULAD NG GENES NG RAINBOW TROUT.

NAGAWANG TUKUYIN NINA GAHR AT REXROAD ANG APAT NA BAGONG RAINBOW TROUT GENES NA TINAWAG NA INHIBITOR NG DNA BINDING/DIFFERENTIATION GENES O I-D GENES, AT PINAG-IBAYO PA ANG CHARACTERIZATION NG DALAWANG IBA PANG GENES.

ANG ID GENES NA ITO AY SILANG NASA LIKOD NG MUSCLE GROWTH AT DEVELPPMENT.

ANG IBAYONG PAGSUSURI PARA MALAMAN ANG KABUUANG KATANGIAN NG GENES NA ITO AY SIYANG MAKATUTULONG SA MGA SIYENTISTA SA BREEDING NG ISDA PARA SA MAS MARAMING MUSCLE…NANGANGAHULUGAN NG MAS MARAMING KARNE ANG MAKAKAIN NG CONSUMERS.

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