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Inbreeding affects locomotor activity in Drosophila melanogaster at different ages

Manenti, Tommaso; Pertoldi, Cino; Moghadam, Neda Nasiri; Schou, Mads Fristrup LU ; Kjærsgaard, Anders; Cavicchi, Sandro and Loeschcke, Volker (2015) In Behavior Genetics 45. p.127-134
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... (More)
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. (Less)
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author
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Inbreeding depression, Circadian rhythm, Daily activity, Light:dark regime , Ageing
in
Behavior Genetics
volume
45
pages
8 pages
publisher
Springer
external identifiers
  • scopus:84920858583
ISSN
0001-8244
DOI
10.1007/s10519-014-9683-5
language
English
LU publication?
no
id
838a3a7b-c4a5-4b61-b9c3-4577ca336e38
date added to LUP
2017-12-18 09:45:52
date last changed
2018-01-12 11:18:48
@article{838a3a7b-c4a5-4b61-b9c3-4577ca336e38,
  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.},
  author       = {Manenti, Tommaso and Pertoldi, Cino and Moghadam, Neda Nasiri and Schou, Mads Fristrup and Kjærsgaard, Anders and Cavicchi, Sandro and Loeschcke, Volker},
  issn         = {0001-8244},
  keyword      = {Inbreeding depression,Circadian rhythm,Daily activity,Light:dark regime ,Ageing},
  language     = {eng},
  pages        = {127--134},
  publisher    = {Springer},
  series       = {Behavior Genetics},
  title        = {Inbreeding affects locomotor activity in Drosophila melanogaster at different ages},
  url          = {http://dx.doi.org/10.1007/s10519-014-9683-5},
  volume       = {45},
  year         = {2015},
}