Selection for associative learning of color stimuli reveals correlated evolution of this learning ability across multiple stimuli and rewards.

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Version: Final published version
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Serval ID
serval:BIB_9BA1B776FC9F
Type
Article: article from journal or magazin.
Collection
Publications
Title
Selection for associative learning of color stimuli reveals correlated evolution of this learning ability across multiple stimuli and rewards.
Journal
Evolution; international journal of organic evolution
Author(s)
Liefting M., Hoedjes K.M., Le Lann C., Smid H.M., Ellers J.
ISSN
1558-5646 (Electronic)
ISSN-L
0014-3820
Publication state
Published
Issued date
2018
Peer-reviewed
Oui
Volume
72
Number
7
Pages
1449-1459
Language
english
Notes
Publication types: Journal Article
Publication Status: aheadofprint
Abstract
We are only starting to understand how variation in cognitive ability can result from local adaptations to environmental conditions. A major question in this regard is to what extent selection on cognitive ability in a specific context affects that ability in general through correlated evolution. To address this question, we performed artificial selection on visual associative learning in female Nasonia vitripennis wasps. Using appetitive conditioning in which a visual stimulus was offered in association with a host reward, the ability to learn visual associations was enhanced within 10 generations of selection. To test for correlated evolution affecting this form of learning, the ability to readily form learned associations in females was also tested using an olfactory instead of a visual stimulus in the appetitive conditioning. Additionally, we assessed whether the improved associative learning ability was expressed across sexes by color-conditioning males with a mating reward. Both females and males from the selected lines consistently demonstrated an increased associative learning ability compared to the control lines, independent of learning context or conditioned stimulus. No difference in relative volume of brain neuropils was detected between the selected and control lines.
Keywords
Genetics, Ecology, Evolution, Behavior and Systematics, General Agricultural and Biological Sciences, Artificial selection, Nasonia vitripennis, associative learning, color, odor, sensory modality
Pubmed
Web of science
Open Access
Yes
Create date
14/06/2018 21:48
Last modification date
23/10/2019 5:13
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