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Genetic variability and robustness of host odor preference in Drosophila melanogaster

Ruebenbauer, Agnieszka LU ; Schlyter, Fredrik; Hansson, Bill S; Löfstedt, Christer LU and Larsson, Mattias C (2008) In Current Biology 18. p.1438-1443
Abstract
Chemosensory stimuli play a crucial role for host selection in insects, including the fruit fly Drosophila melanogaster[1]. Drosophila has been instrumental in unraveling the neurological basis of olfactory processing in insects [2]. Basic knowledge regarding chemical ecology and thorough studies of olfactory preferences are still lacking to a great extent in D. melanogaster, however. We have characterized repeatable variation in olfactory preference between five classical D. melanogaster wild-type strains toward a large array of natural host odors and synthetic compounds. By recording the rate of attraction over up to 24 hr, we could compare stimuli varying in attractiveness and characterize phenotypic parameters on the basis of... (More)
Chemosensory stimuli play a crucial role for host selection in insects, including the fruit fly Drosophila melanogaster[1]. Drosophila has been instrumental in unraveling the neurological basis of olfactory processing in insects [2]. Basic knowledge regarding chemical ecology and thorough studies of olfactory preferences are still lacking to a great extent in D. melanogaster, however. We have characterized repeatable variation in olfactory preference between five classical D. melanogaster wild-type strains toward a large array of natural host odors and synthetic compounds. By recording the rate of attraction over up to 24 hr, we could compare stimuli varying in attractiveness and characterize phenotypic parameters on the basis of individual stimuli and the whole stimulus array. Behavioral differences between strains were predominantly due to variation in a single phenotypic parameter: their overall responsiveness toward optimal and suboptimal olfactory stimuli. These differences were not explained by variation in olfactory sensitivity, locomotory activity, or general vigor monitored by survival. Comparisons with three recently established wild-type strains indicated that a high behavioral threshold against accepting suboptimal olfactory stimuli is the characteristic phenotype of wild D. melanogaster. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Current Biology
volume
18
pages
1438 - 1443
publisher
Elsevier
external identifiers
  • wos:000259523600032
  • scopus:52049118770
ISSN
1879-0445
DOI
10.1016/j.cub.2008.08.062
language
English
LU publication?
yes
id
06906e46-d9b2-4cf3-b086-acd36c15879c (old id 1242856)
date added to LUP
2008-11-06 12:18:12
date last changed
2017-10-22 03:35:19
@article{06906e46-d9b2-4cf3-b086-acd36c15879c,
  abstract     = {Chemosensory stimuli play a crucial role for host selection in insects, including the fruit fly Drosophila melanogaster[1]. Drosophila has been instrumental in unraveling the neurological basis of olfactory processing in insects [2]. Basic knowledge regarding chemical ecology and thorough studies of olfactory preferences are still lacking to a great extent in D. melanogaster, however. We have characterized repeatable variation in olfactory preference between five classical D. melanogaster wild-type strains toward a large array of natural host odors and synthetic compounds. By recording the rate of attraction over up to 24 hr, we could compare stimuli varying in attractiveness and characterize phenotypic parameters on the basis of individual stimuli and the whole stimulus array. Behavioral differences between strains were predominantly due to variation in a single phenotypic parameter: their overall responsiveness toward optimal and suboptimal olfactory stimuli. These differences were not explained by variation in olfactory sensitivity, locomotory activity, or general vigor monitored by survival. Comparisons with three recently established wild-type strains indicated that a high behavioral threshold against accepting suboptimal olfactory stimuli is the characteristic phenotype of wild D. melanogaster.},
  author       = {Ruebenbauer, Agnieszka and Schlyter, Fredrik and Hansson, Bill S and Löfstedt, Christer and Larsson, Mattias C},
  issn         = {1879-0445},
  language     = {eng},
  pages        = {1438--1443},
  publisher    = {Elsevier},
  series       = {Current Biology},
  title        = {Genetic variability and robustness of host odor preference in <i>Drosophila melanogaster</i>},
  url          = {http://dx.doi.org/10.1016/j.cub.2008.08.062},
  volume       = {18},
  year         = {2008},
}