Title: An unexpected diversity of photoreceptor classes in the Longfin squid, Doryteuthis pealeii

Type Dataset Kingston, Alexandra C. N., Wardill, Trevor J., Hanlon, Roger T., Cronin, Thomas W. (2015-07-10): An unexpected diversity of photoreceptor classes in the Longfin squid, Doryteuthis pealeii. Dataset. https://darchive.mblwhoilibrary.org/handle/1912/7383

Authors: Kingston, Alexandra C. N. ; Wardill, Trevor J. ; Hanlon, Roger T. ; Cronin, Thomas W. ;

Links

• Item record in Woods Hole Open Access Server
• Digital object URL

Summary

Cephalopods are famous for their ability to change color and pattern rapidly for signaling and camouflage. They have keen eyes and remarkable vision, made possible by photoreceptors in their retinas. External to the eyes, photoreceptors also exist in parolfactory vesicles and some light organs, where they function using a rhodopsin protein that is identical to that expr essed in the retina. Furthermore, dermal chromatophore organs contain rhodopsin and other components of phototransduction (including retinochrome, a photoisomerase first found in the retina), suggesting that they are photoreceptive. In this study, we used a modified whole - mount immunohistochemical technique to explore rhodopsin and retinochrome expression in a number of tissues and organs in the longfin squid, Doryteuthis pealeii. We found that fin central muscles, hair cells (epithelial primary sensory neu rons), arm axial ganglia, and sucker peduncle nerves all express rhodopsin and retinochrome proteins. Our findings indicate that these animals possess an unexpected diversity of extraocular photoreceptors and suggest that extraocular photoreception using v isual opsins and visual phototransduction machinery is far more widespread throughout cephalopod tissues than previously recognized.

More information

• URI: https://hdl.handle.net/1912/7383
• DOI: 10.1575/1912/7383
• Language: en_US

Subjects

• Extraocular photoreceptors, Phototransduction, Light detection, Opsin, Retinochrome, Parolfactory vesicles

Dates

• accessioned: July 10, 2015
• available: July 10, 2015
• Publication date: July 10, 2015

Notes

Rights

• Attribution-NonCommercial-ShareAlike 3.0 United States
• http://creativecommons.org/licenses/by-nc-sa/3.0/us/

Format

electronic resource

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