Male courtship song in circadian rhythm mutants of Bactrocera cucurbitae (Tephritidae: Diptera)

Takahisa Miyatake, Kenkichi Kanmiya

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)


Pulse train intervals (PTI) of courtship song were differentiated between circadian clock mutants of the melon fly, Bactrocera cucurbitae (Coquillett) (Tephritidae: Diptera). We analysed the male mating song of B. cucurbitae flies of two mutant strains that differed in circadian locomotor rhythm by a LabVIEW programming system. Flies with a short circadian rhythm (S-strain) had shorter PTI than those with a long circadian rhythm (L-strain) in the two age groups tested, young and old. Young flies showed longer PTI than old flies, but no interaction between strain and age was found in PTI. There was a significant interaction between strain and age for pulse train duration (PTD), whereas no stable difference was found in PTD between S- and L-strains. These results suggest a positive correlation between the length of the circadian locomotor rhythm and PTI of courtship song sounds in B. cucurbitae.

Original languageEnglish
Pages (from-to)85-91
Number of pages7
JournalJournal of Insect Physiology
Issue number1
Publication statusPublished - Jan 2004


  • Mating behaviour
  • Mating sound
  • Melon fly
  • Period gene
  • Pulse train interval

ASJC Scopus subject areas

  • Physiology
  • Insect Science


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