Ancestral circuits for vertebrate color vision emerge at the first retinal synapse

Yoshimatsu, Takeshi, Bartel, Philipp, Schröder, Cornelius, Janiak, Filip K, St-Pierre, François, Berens, Philipp and Baden, Tom (2021) Ancestral circuits for vertebrate color vision emerge at the first retinal synapse. Science Advances, 7 (42). pp. 1-18. ISSN 2375-2548

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Abstract

For color vision, retinal circuits separate information about intensity and wavelength. In vertebrates that use the full complement of four “ancestral” cone types, the nature and implementation of this computation remain poorly understood. Here, we establish the complete circuit architecture of outer retinal circuits underlying color processing in larval zebrafish. We find that the synaptic outputs of red and green cones efficiently rotate the encoding of natural daylight in a principal components analysis–like manner to yield primary achromatic and spectrally opponent axes, respectively. Blue cones are tuned to capture most remaining variance when opposed to green cones, while UV cone present a UV achromatic axis for prey capture. We note that fruitflies use essentially the same strategy. Therefore, rotating color space into primary achromatic and chromatic axes at the eye’s first synapse may thus be a fundamental principle of color vision when using more than two spectrally well-separated photoreceptor types.

Item Type: Article
Schools and Departments: School of Life Sciences > Neuroscience
SWORD Depositor: Mx Elements Account
Depositing User: Mx Elements Account
Date Deposited: 04 Nov 2021 09:38
Last Modified: 02 Mar 2022 13:07
URI: http://sro.sussex.ac.uk/id/eprint/102679

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Project NameSussex Project NumberFunderFunder Ref
Anisotropic retinal circuits for processing of colour and space in natureG2397BBSRC-BIOTECHNOLOGY & BIOLOGICAL SCIENCES RESEARCH COUNCILBB/R014817/1
Anisotropic retinal circuits for processing of colour and space in nature - Lister Institute Research PrizeG2503LISTER INSTITUTEUnset
EMBO Young Investigator ProgrammeG2920EMBO-EUROPEAN MOLECULAR BIOLOGY ORGANIZATIONBaden
How to connect an eye to a brainG3137WELLCOME TRUSTWT Ref: 220277/
NeuroVisEco - Zebrafish vision in its natural context: from natural scenes through retinal and central processing to behaviourG1871EUROPEAN UNION677687
Philip Leverhulme Prize - Biological SciencesG2276LEVERHULME TRUSTPLP-2017-005