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Description and genetics of glucose phosphate isomerase (GPI) and phosphoglucomutase (PGM) polymorphisms inAsellus aquaticus(L.)

✍ Scribed by Eric Verspoor

Book ID: 104783787
Publisher: Springer
Year: 1982
Tongue: English
Weight: 595 KB
Volume: 20
Category: Article
ISSN: 0006-2928
DOI: 10.1007/bf00484067

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✦ Synopsis

Analysis of Western European populations of Asellus aquaticus uncovered 10 electrophoretic phenotypes of glucose phosphate isomerase (GPI) and 7 of phosphoglucomutase (PGM). Breeding studies indicate that the variation is controlled by codominant alleles at two autosomal loci. Genotype frequencies in the two sexes do not differ significantly, mating between genotypes is random, and no structural linkage is detectable between the two loci. PGM shows nongenetic, "secondary" banding, particularly in animals stored at -20 degrees C prior to electrophoresis. This secondary banding confounds the identification of the genetic variation but can be controlled by the reducing agent 2-mercaptoethanol.

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