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Genetic variation at isozyme loci in blue whiting from the north‐east Atlantic
Author(s) -
Mork J.,
Giæver M.
Publication year - 1995
Publication title -
journal of fish biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.672
H-Index - 115
eISSN - 1095-8649
pISSN - 0022-1112
DOI - 10.1111/j.1095-8649.1995.tb05987.x
Subject(s) - biology , loss of heterozygosity , locus (genetics) , isozyme , allele , genetic variation , zoology , genetic variability , allele frequency , genetics , genotype , gene , enzyme , biochemistry
Genetic variation in blue whiting Micromesistius poutassou was investigated by starch gel electrophoresis of enzymes in tissue extracts. A total of 130 specimens from the spawning areas west of the British Isles were collected from trawl catches in 1990 ( n = 30) and 1992 ( n = 100). In 25 tissue enzyme loci screened for genetic variants in the 1990 sample, polymorphisms (0.95 criterion) were found at IDDH‐2 *, IDHP‐2 * and PGM‐1 *, giving a frequency of polymorphic loci of P 0.95 = 0.12. In pooled samples the average heterozygosity per locus was estimated at H e =0.043 and the effective number of alleles per locus at 2.20, 1.45 and 1.53, respectively, for IDDH‐2 *, IDHP‐2 * and PGM‐1 *.