Genetic studies on the pacific abalone. XVIII. Estimating the rate of gene-centromere recombination at leucine-aminopeptidase, malic enzyme, and phosphoglucomutase loci in the Pacific abalone.

Abstract

Analyses on genotypic relationships between parents and their normal and triploid offspring sib populations have made it possible to estimate rate of gene-centromere recombination at the four loci coding phosphogluconate dehydrogenase, phosphoglucomutase, phosphoglucose isomerase, and esterase in the pacific abalone Haliotis discus hannai. Application of the similar analyses on parentage in genotypic compositions of the three mating groups of the pacific abalone allowed to estimate rate of gene-centromere recombination at leucine-aminopeptidase and malic enzyme loci as well as an additional locus coding phosphoglucomutase but different from that reported before. During the analyses, an excessive occurrence of homozygote genotype was observed at leucine-amino-peptidase locus commonly in triploid sib populations.