Artificial selection for food colour preferences

Cole, Gemma L. and Endler, John A. 2015, Artificial selection for food colour preferences, Proceedings of the royal society of London: biological sciences, vol. 282, no. 1804, pp. 1-9, doi: 10.1098/rspb.2014.3108.

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Title Artificial selection for food colour preferences
Author(s) Cole, Gemma L.ORCID iD for Cole, Gemma L.
Endler, John A.ORCID iD for Endler, John A.
Journal name Proceedings of the royal society of London: biological sciences
Volume number 282
Issue number 1804
Start page 1
End page 9
Total pages 9
Publisher Royal Society, The
Place of publication London, Eng.
Publication date 2015-04-07
ISSN 1471-2954
Keyword(s) artificial selection
motion detection
sensory bias
Science & Technology
Life Sciences & Biomedicine
Evolutionary Biology
Life Sciences & Biomedicine - Other Topics
Environmental Sciences & Ecology
Summary Colour is an important factor in food detection and acquisition by animals using visually based foraging. Colour can be used to identify the suitability of a food source or improve the efficiency of food detection, and can even be linked to mate choice. Food colour preferences are known to exist, but whether these preferences are heritable and how these preferences evolve is unknown. Using the freshwater fish Poecilia reticulata, we artificially selected for chase behaviour towards two different-coloured moving stimuli: red and blue spots. A response to selection was only seen for chase behaviours towards the red, with realized heritabilities ranging from 0.25 to 0.30. Despite intense selection, no significant chase response was recorded for the blue-selected lines. This lack of response may be due to the motion-detection mechanism in the guppy visual system and may have novel implications for the evolvability of responses to colour-related signals. The behavioural response to several colours after five generations of selection suggests that the colour opponency system of the fish may regulate the response to selection.
Language eng
DOI 10.1098/rspb.2014.3108
Field of Research 060399 Evolutionary Biology not elsewhere classified
Socio Economic Objective 970106 Expanding Knowledge in the Biological Sciences
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2015, Royal Society, The
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