دورية أكاديمية
The evolution of the green-light-sensitive visual opsin genes (RH2) in teleost fishes.
| العنوان: | The evolution of the green-light-sensitive visual opsin genes (RH2) in teleost fishes. |
|---|---|
| المؤلفون: | Musilova Z; Department of Zoology, Faculty of Science, Charles University, Vinicna, 7, 12844 Prague, Czech Republic. Electronic address: zuzana.musilova@natur.cuni.cz., Cortesi F; School of Biological Sciences and Queensland Brain Institute, The University of Queensland, Brisbane, QLD 4072, Australia. Electronic address: fabio.cortesi@uqconnect.edu.au. |
| المصدر: | Vision research [Vision Res] 2023 May; Vol. 206, pp. 108204. Date of Electronic Publication: 2023 Mar 01. |
| نوع المنشور: | Journal Article; Research Support, Non-U.S. Gov't |
| اللغة: | English |
| بيانات الدورية: | Publisher: Elsevier Science Ltd Country of Publication: England NLM ID: 0417402 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1878-5646 (Electronic) Linking ISSN: 00426989 NLM ISO Abbreviation: Vision Res Subsets: MEDLINE |
| أسماء مطبوعة: | Publication: Kidlington, Oxford : Elsevier Science Ltd. Original Publication: Oxford [etc.] |
| مواضيع طبية MeSH: | Rhodopsin*/genetics , Cone Opsins*/genetics, Animals ; Phylogeny ; Fishes/genetics ; Opsins/genetics ; Mammals |
| مستخلص: | Vertebrates have four visual cone opsin classes that mediate sensitivity from ultraviolet to red wavelengths of light. The rhodopsin-like 2 (RH2) opsin is sensitive to the central mostly green part of the spectrum. While lost in some terrestrial vertebrates (mammals), the RH2 opsin gene has proliferated during the evolution of teleost fishes. Here, we investigated the genomes of 132 extant teleosts and found between zero and eight RH2 gene copies per species. The RH2 gene shows a dynamic evolutionary history with repeated gene duplications, gene losses, and gene conversions affecting entire orders, families, and species. At least four ancestral duplications provided the substrate for today's RH2 diversity, with duplications occurring in the common ancestors of Clupeocephala (twice), Neoteleostei, and likely Acanthopterygii as well. Despite these evolutionary dynamics, we identified conserved RH2 synteny in two main gene clusters; the slc6A13/synpr cluster is highly conserved within Percomorpha and also present across most teleosts, including Otomorpha, Euteleostei and in parts in tarpons (Elopomorpha), and the mutSH5 cluster, which is specific for Otomorpha. When comparing the number of visual opsin genes (SWS1, SWS2, RH2, LWS, and total cone opsins) with habitat depth, we found that deeper-dwelling species had less (or none) long-wavelength-sensitive opsins. Using retinal/eye transcriptomes in a phylogenetic representative dataset of 32 species, we show that if present in the genome, RH2 is expressed in most fishes except for some species within the tarpons, characins, and gobies (and Osteoglossomorpha and some other characin species have lost the gene). Those species instead express a green-shifted long-wavelength-sensitive LWS opsin. Our study applies modern genomic and transcriptomic tools within a comparative framework to elucidate the evolutionary history of the visual sensory system in teleost fishes. Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. (Copyright © 2023 Elsevier Ltd. All rights reserved.) |
| فهرسة مساهمة: | Keywords: Colour vision; Deep sea; Evolution; Fish; Gene duplication; Opsin |
| المشرفين على المادة: | 9009-81-8 (Rhodopsin) 0 (Opsins) 0 (Cone Opsins) |
| تواريخ الأحداث: | Date Created: 20230303 Date Completed: 20230411 Latest Revision: 20230504 |
| رمز التحديث: | 20230506 |
| DOI: | 10.1016/j.visres.2023.108204 |
| PMID: | 36868011 |
| قاعدة البيانات: | MEDLINE |
Full Text Finder | تدمد: | 1878-5646 |
|---|---|
| DOI: | 10.1016/j.visres.2023.108204 |