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Foxd1 dependent induction of temporal retinal character is required for visual 2 function

Hernandez-Bejarano, Maria; Gestri, Gaia; Monfries, Clinton; Tucker, Lisa; Dragomir, Elena; Bianco, Isaac; Bovolenta, Paola; ... Cavodeassi, Florencia; + view all (2022) Foxd1 dependent induction of temporal retinal character is required for visual 2 function. Development , 149 , Article 24. 10.1242/dev.200938. Green open access

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Abstract

Appropriate patterning of the retina during embryonic development is assumed to underlie the establishment of spatially localised specialisations that mediate the perception of specific visual features. For example, in zebrafish, an area involved in high acuity vision (HAA) is thought to be present in the ventro-temporal retina. Here, we show that the interplay of the transcription factor Rx3 with Fibroblast Growth Factor and Hedgehog signals initiates and restricts foxd1 expression to the prospective temporal retina, initiating naso-temporal regionalisation of the retina. Abrogation of Foxd1 results in the loss of temporal and expansion of nasal retinal character, and consequent absence of the HAA. These structural defects correlate with severe visual defects, as assessed in optokinetic and optomotor response assays. In contrast, optokinetic responses are unaffected in the opposite condition, in which nasal retinal character is lost at the expense of expanded temporal character. Our study indicates that the establishment of temporal retinal character during early retinal development is required for the specification of the HAA, and suggests a prominent role of the temporal retina in controlling specific visual functions.

Type: Article
Title: Foxd1 dependent induction of temporal retinal character is required for visual 2 function
Open access status: An open access version is available from UCL Discovery
DOI: 10.1242/dev.200938
Publisher version: https://doi.org/10.1242/dev.200938
Language: English
Additional information: © 2022. Published by The Company of Biologists Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0).
Keywords: Foxd1, Rx3, Retinal patterning, Fovea, Area temporalis, OKR, OMR, Zebrafish
UCL classification: UCL
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Life Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Life Sciences > Div of Biosciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Life Sciences > Div of Biosciences > Cell and Developmental Biology
URI: https://discovery.ucl.ac.uk/id/eprint/10163529
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