Open AccessMating behaviour as a fitness component in maintaining allozyme polymorphism in Drosophila melanogaster
Author(s) -
åSLUND SVENERIC
Publication year - 1978
Publication title -
hereditas
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.819
H-Index - 50
eISSN - 1601-5223
pISSN - 0018-0661
DOI - 10.1111/j.1601-5223.1978.tb01268.x
Subject(s) - biology , overdominance , drosophila melanogaster , heterozygote advantage , genetics , allele , balancing selection , mating , genotype , polymorphism (computer science) , frequency dependent selection , evolutionary biology , allele frequency , selection (genetic algorithm) , gene , artificial intelligence , computer science
The maintenance of a leucine aminopeptidase‐A polymorphism comprising two alleles, Lap‐A F and Lap‐A n , in Drosophila melanogaster was investigated. The major mechanism responsible for the polymorphism seemed to be heterozygote superiority in mating behaviour. Other selective differences among the genotypes, present in some aspects of early selection, seem to influence only the position of equilibrium gene frequencies. Comparisons between gene frequencies obtained in deterministic simulations, using estimated components of fitness and empirically obtained frequencies, supported strongly the assumptions that the polymorphism was maintained mainly by overdominance in fitness for mating behaviour.