Polymorphism at the REF(2)P Locus in DROSOPHILA MELANOGASTER: Preliminary Experiments concerning the Selection Mechanisms Involved in Its Maintenance

AUTOR(ES)

Fleuriet, Annie

RESUMO

It has been shown previously that a polymorphism for two alleles of the ref(2)P locus is a regular feature of French natural populations of Drosophila melanogaster and that this is maintained in laboratory populations raised in cages. In this paper, an experimental population and egg-collection experiments are reported. Differential survival of the three genotypes would be the main factor leading to the equilibrium frequencies, working only in drastic conditions of larval competition.

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