TY  - JOUR
TI  - Amphioxus photoreceptors - insights into the evolution of vertebrate opsins, vision and circadian rhythmicity
AU  - Pergner, Jiri
AU  - Kozmik, Zbynek
T2  - The International Journal of Developmental Biology
AB  - Studies on amphioxus, representing the most basal group of chordates, can give insights into the evolution of vertebrate traits. The present review of amphioxus research is focused on the physiology of light-guided behavior as well as on the fine structure, molecular biology, and electrophysiology of the nervous system, with special attention being given to the photoreceptive organs. The amphioxus visual system is especially interesting because four types of receptors are involved in light detection – dorsal ocelli and Joseph cells (both rhabdomeric photoreceptors) and the frontal eye and lamellar body (both ciliary photoreceptors). Here, we consider how the available information on photoreceptive organs and light-guided behavior in amphioxus helps generate hypotheses about the history of these features during chordate and subsequently vertebrate evolution.
PY  - 2017
DO  - 10.1387/ijdb.170230zk
VL  - 61
IS  - 10-11-12
SP  - 665
EP  - 681
J2  - Int. J. Dev. Biol.
LA  - en
SN  - 0214-6282
SN  - 1696-3547
UR  - https://ijdb.ehu.eus/article/170230zk
Y2  - 2024/11/21/13:29:40
ER  -