Applications of 5S rDNA in Atlantic salmon, brown trout, and in Atlantic salmon brown trout hybrid identification

Applications of 5S rDNA in Atlantic salmon, brown trout, and in Atlantic salmon brown trout... A. M. PENDAS, P. MORAN, J. L. MARTINEZ and E. GARCIA-VAZQUEZ Departamento de Biologih Funcional, Arm de Genkticn, Facultad de Medicina, Unionsidnd de Ooiedo, 33006 Ooiedo, Spain The members of the salmonid family form perhaps the most economically important group of the world’s fish species. In Europe the most important species employed in fish farming are the introduced rainbow trout (Oncorhynchus mykiss) and the Atlantic salmon (Salmo salnr), whereas interest in the brown trout (Salmo trufta)is based on its ecological diversity and sport fishing. These two Salmo species are very difficult to distinguish using morphological characters, not only during their first months of life (eggs and alevins) but also at the returning adult stage. Isoenzyme genetic analysis, which has usually been used for their identification, has often demonstrated that anglers have confused adults of brown trout with Atlantic salmon, or with salmon x trout hybrids (Leaniz & Verspoor 1989). Caution must therefore be taken in enhancement programmes since the artificial spawning of adults caught in the river could lead to restocking with salmon x trout hybrids. Another area of interest is the identification of manufactured products of these species (i.e. smoked). Genetic analysis potentially provides the only reliable http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Molecular Ecology Wiley

Applications of 5S rDNA in Atlantic salmon, brown trout, and in Atlantic salmon brown trout hybrid identification

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Publisher
Wiley
Copyright
"Copyright © 1995 Wiley Subscription Services, Inc., A Wiley Company"
ISSN
0962-1083
eISSN
1365-294X
D.O.I.
10.1111/j.1365-294X.1995.tb00220.x
Publisher site
See Article on Publisher Site

Abstract

A. M. PENDAS, P. MORAN, J. L. MARTINEZ and E. GARCIA-VAZQUEZ Departamento de Biologih Funcional, Arm de Genkticn, Facultad de Medicina, Unionsidnd de Ooiedo, 33006 Ooiedo, Spain The members of the salmonid family form perhaps the most economically important group of the world’s fish species. In Europe the most important species employed in fish farming are the introduced rainbow trout (Oncorhynchus mykiss) and the Atlantic salmon (Salmo salnr), whereas interest in the brown trout (Salmo trufta)is based on its ecological diversity and sport fishing. These two Salmo species are very difficult to distinguish using morphological characters, not only during their first months of life (eggs and alevins) but also at the returning adult stage. Isoenzyme genetic analysis, which has usually been used for their identification, has often demonstrated that anglers have confused adults of brown trout with Atlantic salmon, or with salmon x trout hybrids (Leaniz & Verspoor 1989). Caution must therefore be taken in enhancement programmes since the artificial spawning of adults caught in the river could lead to restocking with salmon x trout hybrids. Another area of interest is the identification of manufactured products of these species (i.e. smoked). Genetic analysis potentially provides the only reliable

Journal

Molecular EcologyWiley

Published: Apr 1, 1995

Keywords: ; ; ;

References

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