The courtship song of African Drosophila melanogaster

N Colegrave, H Hollocher, K Hinton, M G Ritchie

Research output: Contribution to journalArticlepeer-review

40 Citations (Scopus)

Abstract

For many years it was thought that Drosophila melanogaster was relatively panmictic, without differentiation in the Mate Recognition System. Recent studies have demonstrated that flies from Africa vary in pheromones and assortative mating. Strains from Zimbabwe show strong sexual isolation from others. We show that the interpulse interval (IPI) of courtship song, an important mating signal, is unusually short among African flies. Zimbabwean flies have the shortest IPI, but there is no correlation with assortative mating, suggesting little direct role in sexual isolation. Chromosome replacements show that the IPI difference is largely due to genes on chromosome III, with significant interactions involving other chromosomes. Several traits potentially influencing sexual isolation among the melanogaster group of Drosophila seem to be localized to this chromosome. A concentration of important genetic differences might mean that the interaction effects reflect secondary coadaptation of the genetic background to changes associated with chromosome III.

Original languageEnglish
Pages (from-to)143-150
Number of pages8
JournalJournal of Evolutionary Biology
Volume13
Publication statusPublished - Jan 2000

Keywords

  • behaviour
  • courtship song
  • Drosophila melanogaster
  • genetics
  • interpulse interval
  • sexual isolation
  • MATE RECOGNITION SYSTEMS
  • SEXUAL ISOLATION
  • INCIPIENT SPECIATION
  • REPRODUCTIVE ISOLATION
  • ARTIFICIAL SELECTION
  • SPECIES SUBGROUP
  • GENETIC-CONTROL
  • POPULATIONS
  • FEMALE
  • RESPONSES

Fingerprint

Dive into the research topics of 'The courtship song of African Drosophila melanogaster'. Together they form a unique fingerprint.

Cite this