Genetic differentiation between Tasmanian cultured Atlantic salmon (Salmo salar L.) and their ancestral Canadian population: comparison of microsatellite DNA and allozyme and mitochondrial DNA variation

Aquaculture ◽  
1999 ◽  
Vol 173 (1-4) ◽  
pp. 459-469 ◽  
Author(s):  
Anne Reilly ◽  
Nicholas G Elliott ◽  
Peter M Grewe ◽  
Catherine Clabby ◽  
Richard Powell ◽  
...  
Keyword(s):  
Mitochondrial Dna ◽  
Genetic Differentiation ◽  
Atlantic Salmon ◽  
Salmo Salar ◽  
Microsatellite Dna ◽  
Dna Variation ◽  
Atlantic Salmon Salmo Salar ◽  
Canadian Population ◽  
Population Comparison

Mitochondrial DNA variation in Atlantic salmon, Salmo, salar L., populations

1993 ◽  
Vol 42 (1) ◽  
pp. 25-33 ◽  
Author(s):  
D. P. F. King ◽  
S. J. Hovey ◽  
D. Thompson ◽  
A. Scott
Keyword(s):  
Mitochondrial Dna ◽  
Atlantic Salmon ◽  
Salmo Salar ◽  
Dna Variation ◽  
Atlantic Salmon Salmo Salar

Mitochondrial DNA Variation Reveals Genetically Distinct Sympatric Populations of Anadromous and Nonanadromous Atlantic Salmon, Salmo salar

1991 ◽  
Vol 48 (4) ◽  
pp. 577-582 ◽  
Author(s):  
Tim P. Birt ◽  
John M. Green ◽  
William S. Davidson
Keyword(s):  
Mitochondrial Dna ◽  
Nucleotide Sequence ◽  
Atlantic Salmon ◽  
Salmo Salar ◽  
Size Difference ◽  
Significant Heterogeneity ◽  
Dna Variation ◽  
Atlantic Salmon Salmo Salar ◽  
Genotype Frequencies ◽  
Nucleotide Sequence Variation

Mitochondrial DNA variation was surveyed among wild anadromous and nonanadromous Atlantic salmon, Salmo salar, which occur in sympatry in Gambo River, Newfoundland. Seventy-one salmon were screened with 18 restriction enzymes, 5 of which revealed nucleotide sequence variation. Nucleotide sequence divergence estimates among the four distinct genotypes detected ranged from 0.2 to 1.0%. Significant heterogeneity in mtDNA genotype frequencies supports the view that exchange of breeding females between groups is infrequent or does not occur, an inference consistent with the observation that the forms use separate spawning sites within the system. Mitochondrial DNA diversity was somewhat greater among the nonanadromous salmon than the anadromous salmon (nucleon diversity (h) = 0.37 and 0.52, respectively). Potential mechanisms for maintaining reproductive isolation include selection of different spawning habitats, different spawning times, and sexual selection based upon the size difference between the two forms.

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