Estimated absorbance spectra of the visual pigments of the North Atlantic right whale (Eubalaena glacialis)

To assess the spectral sensitivities of the retinal visual pigments from the North Atlantic right whale (Eubalaena glacialis), we have cloned and sequenced two exons from the rod opsin gene and two exons from the middle‐wavelength sensitive (MWS) cone opsin gene in order to determine the amino acids...

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Published in:Marine mammal science 2011-10, Vol.27 (4), p.E321-E331
Main Authors: Fasick, Jeffry I., Bischoff, Nicole, Brennan, Stephanie, Velasquez, Stephani, Andrade, Gisele
Format: Article
Language:English
Subjects:
absorbance maxima
Cetacea
Eubalaena glacialis
Marine
Odontoceti
retina
right whale
spectral sensitivity
vision
visual pigment
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cited_by cdi_FETCH-LOGICAL-c3827-9538ab2ed3c8dad5ff75e6983fd280fcc1a1a63507baa0fe431a5083a05eb4703
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description To assess the spectral sensitivities of the retinal visual pigments from the North Atlantic right whale (Eubalaena glacialis), we have cloned and sequenced two exons from the rod opsin gene and two exons from the middle‐wavelength sensitive (MWS) cone opsin gene in order to determine the amino acids at positions known to be key regulators of the spectral location of the absorbance maximum (λmax). Based on previous mutagenesis models we estimate that the right whale possesses a rod visual pigment with a λmax of 499 nm and a MWS cone visual pigment with a λmax of 524 nm. Although the MWS cone visual pigment from the right whale is blue‐shifted in its spectral sensitivity like those from odontocetes, the spectral sensitivity of the right whale rod visual pigment is similar to those from terrestrial mammals.
doi_str_mv 10.1111/j.1748-7692.2011.00467.x
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subjects absorbance maxima
Cetacea
Eubalaena glacialis
Marine
Odontoceti
retina
right whale
spectral sensitivity
vision
visual pigment
title Estimated absorbance spectra of the visual pigments of the North Atlantic right whale (Eubalaena glacialis)
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