Behavior Genetics

, Volume 45, Issue 1, pp 127–134

Inbreeding Affects Locomotor Activity in Drosophilamelanogaster at Different Ages

  • Tommaso Manenti
  • Cino Pertoldi
  • Neda Nasiri
  • Mads Fristrup Schou
  • Anders Kjærsgaard
  • Sandro Cavicchi
  • Volker Loeschcke
Original Research

DOI: 10.1007/s10519-014-9683-5

Cite this article as:
Manenti, T., Pertoldi, C., Nasiri, N. et al. Behav Genet (2015) 45: 127. doi:10.1007/s10519-014-9683-5

Abstract

The ability to move is essential for many behavioural traits closely related to fitness. Here we studied the effect of inbreeding on locomotor activity (LA) of Drosophila melanogaster at different ages under both dark and light regimes. We expected to find a decreased LA in inbred lines compared to control lines. We also predicted an increased differentiation between lines due to inbreeding. LA was higher in the dark compared to the light regime for both inbred and outbred control lines. As expected, inbreeding increased phenotypic variance in LA, with some inbred lines showing higher and some lower LA than control lines. Moreover, age per se did not affect LA neither in control nor in inbred lines, while we found a strong line by age interaction between inbred lines. Interestingly, inbreeding changed the daily activity pattern of the flies: these patterns were consistent across all control lines but were lost in some inbred lines. The departure in the daily pattern of LA in inbred lines may contribute to the inbreeding depression observed in inbred natural populations.

Keywords

Inbreeding depression Circadian rhythm Daily activity Light:dark regime Ageing 

Supplementary material

10519_2014_9683_MOESM1_ESM.docx (751 kb)
Supplementary material 1 (DOCX 751 kb)

Copyright information

© Springer Science+Business Media New York 2014

Authors and Affiliations

  • Tommaso Manenti
    • 1
  • Cino Pertoldi
    • 1
    • 2
    • 3
  • Neda Nasiri
    • 1
  • Mads Fristrup Schou
    • 1
  • Anders Kjærsgaard
    • 1
    • 4
  • Sandro Cavicchi
    • 1
  • Volker Loeschcke
    • 1
  1. 1.Department of Bioscience, Genetics, Ecology and EvolutionAarhus UniversityAarhus CDenmark
  2. 2.Department of Biotechnology, Chemistry and Environmental Engineering - Section of Biology and Environmental ScienceAalborg UniversityAalborgDenmark
  3. 3.Aalborg ZooAalborgDenmark
  4. 4.Institute of Evolutionary Biology and Environmental StudiesUniversity of ZurichZurichSwitzerland