edoc

Function and evolutionary origin of unicellular camera-type eye structure

Hayakawa, Shiho and Takaku, Yasuharu and Hwang, Jung Shan and Horiguchi, Takeo and Suga, Hiroshi and Gehring, Walter and Ikeo, Kazuho and Gojobori, Takashi. (2015) Function and evolutionary origin of unicellular camera-type eye structure. PLoS one, Vol. 10, H. 3 , e0118415.

Full text not available from this repository.

Official URL: http://edoc.unibas.ch/dok/A6373568

Downloads: Statistics Overview

Abstract

The ocelloid is an extraordinary eyespot organelle found only in the dinoflagellate family Warnowiaceae. It contains retina- and lens-like structures called the retinal body and the hyalosome. The ocelloid has been an evolutionary enigma because of its remarkable resemblance to the multicellular camera-type eye. To determine if the ocelloid is functionally photoreceptive, we investigated the warnowiid dinoflagellate Erythropsidinium. Here, we show that the morphology of the retinal body changed depending on different illumination conditions and the hyalosome manifests the refractile nature. Identifying a rhodopsin gene fragment in Erythropsidinium ESTs that is expressed in the retinal body by in situ hybridization, we also show that ocelloids are actually light sensitive photoreceptors. The rhodopsin gene identified is most closely related to bacterial rhodopsins. Taken together, we suggest that the ocelloid is an intracellular camera-type eye, which might be originated from endosymbiotic origin.
Faculties and Departments:05 Faculty of Science > Departement Biozentrum > Former Organization Units Biozentrum > Cell Biology (Gehring)
UniBasel Contributors:Gehring, Walter Jakob
Item Type:Article, refereed
Bibsysno:Link to catalogue
Publisher:Public Library of Science
ISSN:1932-6203
Note:Publication type according to Uni Basel Research Database: Journal article
Related URLs:
Identification Number:
Last Modified:08 May 2015 08:45
Deposited On:08 May 2015 08:45

Repository Staff Only: item control page