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Length‐correlated changes in heterozygosity at an enzyme locus in the scallop (Pecten maximus L.)
Author(s) -
Wilkins N. P.
Publication year - 1978
Publication title -
animal blood groups and biochemical genetics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.756
H-Index - 81
eISSN - 1365-2052
pISSN - 0003-3480
DOI - 10.1111/j.1365-2052.1978.tb01416.x
Subject(s) - loss of heterozygosity , biology , glucose 6 phosphate isomerase , locus (genetics) , genetics , scallop , zoology , allele , enzyme , gene , ecology , biochemistry
Summary Phosphoglucose isomerase was analysed by electrophoresis in approximately 280 Pecten maximus individuals from two populations. Observed heterozygosity decreased with increasing dorso‐ventral valve length in both populations. The regression of heterozygosity on length in mm yielded the relationship H 0 = 1.119–0.003 L. Observed heterozygosity was very high in samples of small individuals indicating that self fertilization cannot be a regular feature of reproduction in this functional hermaphroditic species. Some possible causes for the observed decline in heterozygosity among larger individuals are discussed.