Format

Send to:

Choose Destination
See comment in PubMed Commons below
Science. 2004 Oct 29;306(5697):869-71.

Ciliary photoreceptors with a vertebrate-type opsin in an invertebrate brain.

Author information

  • 1Developmental Biology Department, European Molecular Biology Laboratory, Meyerhofstrasse 1, 69012 Heidelberg, Germany. detlev.arendt@embl.de

Abstract

For vision, insect and vertebrate eyes use rhabdomeric and ciliary photoreceptor cells, respectively. These cells show distinct architecture and transduce the light signal by different phototransductory cascades. In the marine rag-worm Platynereis, we find both cell types: rhabdomeric photoreceptor cells in the eyes and ciliary photoreceptor cells in the brain. The latter use a photopigment closely related to vertebrate rod and cone opsins. Comparative analysis indicates that both types of photoreceptors, with distinct opsins, coexisted in Urbilateria, the last common ancestor of insects and vertebrates, and sheds new light on vertebrate eye evolution.

Comment in

PMID:
15514158
[PubMed - indexed for MEDLINE]
Free full text
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for HighWire
    Loading ...
    Write to the Help Desk