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Evidence for co‐dominant allelic expression of a phosphoglucomutase regulatory locus polymorphism in the Atlantic salmon
Author(s) -
Verspoor E.,
Moyes C. D.
Publication year - 2005
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.0022-1112.2005.00850.x
Subject(s) - biology , phosphoglucomutase , salmo , allele , genetics , rainbow trout , locus (genetics) , isozyme , phenotype , genetic variation , gene , fishery , enzyme , fish <actinopterygii> , biochemistry
Starch gel electrophoresis of the phosphoglucomutase isozyme, PGM‐1, in liver tissue in Atlantic salmon Salmo salar shows three phenotypes – full, partial and no expression. The genetic basis of the variation has not been established. Studies of the inheritance of the variation and of liver enzyme levels carried out indicate that the variation, as in rainbow trout Onchorynchus mykiss , reflects co‐dominant allelic variation at a cis ‐acting regulatory locus, designated PGM‐1r *, with one allele promoting and the other suppressing expression.