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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Lens transmittance shapes ultraviolet sensitivity in the eyes of frogs from diverse ecological and phylogenetic backgrounds

Full text
Author(s):
Yovanovich, Carola A. M. [1] ; Pierotti, Michele E. R. [2, 1] ; Kelber, Almut [3] ; Jorgewich-Cohen, Gabriel [1] ; Ibanez, Roberto [2] ; Grant, Taran [1]
Total Authors: 6
Affiliation:
[1] Univ Sao Paulo, Inst Biosci, Dept Zool, Sao Paulo - Brazil
[2] Smithsonian Trop Res Inst, Panama City - Panama
[3] Lund Univ, Dept Biol, Lund - Sweden
Total Affiliations: 3
Document type: Journal article
Source: PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES; v. 287, n. 1918 JAN 15 2020.
Web of Science Citations: 0
Abstract

The amount of short wavelength (ultraviolet (UV), violet and blue) light that reaches the retina depends on the transmittance properties of the ocular media, especially the lens, and varies greatly across species in all vertebrate groups studied previously. We measured the lens transmittance in 32 anuran amphibians with different habits, geographical distributions and phylogenetic positions and used them together with eye size and pupil shape to evaluate the relationship with diel activity pattern, elevation and latitude. We found an unusually high lens UV transmittance in the most basal species, and a cut-off range that extends into the visible spectrum for the rest of the sample, with lenses even absorbing violet light in some diurnal species. However, other diurnal frogs had lenses that transmit UV light like the nocturnal species. This unclear pattern in the segregation of ocular media transmittance and diel activity is shared with other vertebrates and is consistent with the absence of significant correlations in our statistical analyses. Although we did not detect a significant phylogenetic effect, closely related species tend to have similar transmittances, irrespective of whether they share the same diel pattern or not, suggesting that anuran ocular media transmittance properties might be related to phylogeny. (AU)

FAPESP's process: 15/14857-6 - A systematic study of amphibian visual systems: from evolution of diel patterns to physiological limits for colour vision
Grantee:Carola Anabel Mariana Yovanovich
Support Opportunities: Scholarships in Brazil - Post-Doctoral
FAPESP's process: 18/11502-0 - The hyperdiverse amphibian fauna of Brazil as a model system for comparative ecophysiology and genomics of vision
Grantee:Taran Grant
Support Opportunities: Research Grants - Visiting Researcher Grant - International
FAPESP's process: 11/50146-6 - Comparative phylogeography, phylogeny, paleoclimate modeling, and taxonomy of neotropical reptiles and amphibians
Grantee:Miguel Trefaut Urbano Rodrigues
Support Opportunities: BIOTA-FAPESP Program - Thematic Grants
FAPESP's process: 18/15425-0 - A multi-disciplinary approach to the study of amphibian diversification: phase 2
Grantee:Taran Grant
Support Opportunities: Research Grants - Young Investigators Grants - Phase 2
FAPESP's process: 12/10000-5 - A multi-disciplinary approach to the study of amphibian diversification
Grantee:Taran Grant
Support Opportunities: Research Grants - Young Investigators Grants