Research
Ciliary photoreceptors in the cerebral eyes of a protostome larva
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* Corresponding author: Yale J Passamaneck yale@hawaii.edu
1 Kewalo Marine Laboratory, Pacific Biosciences Research Center, University of Hawaii, 41 Ahui Street, Honolulu, HI 96813, USA
2 Museum für Naturkunde, Leibniz-Institut für Evolutions- und Biodiversitätsforschung an der Humboldt-Universität zu Berlin, Invalidenstraße 43, 10115 Berlin, Germany
3 Sars International Centre for Marine Molecular Biology, University of Bergen, Thormøhlensgate 55, 5008 Bergen, Norway
EvoDevo 2011, 2:6 doi:10.1186/2041-9139-2-6
Published: 1 March 2011Additional files
Additional file 1:
Presumed light-perceptive cilium of the pigment cell in a larval eye of Terebratalia. (A-I) Series of aligned sections to illustrate the ciliary membrane forming the stack of membranes (m) in the optical cavity enclosed by the lens (ls) and the pigment granules (pg). (J) Close-up of the membrane stack (m) showing the invagination of the ciliary membrane to enlarge its surface (arrow). (K) Cross-section of the same cilium showing its 9 × 2 + 2 microtubule pattern. Scale bars: 0.5 μm.
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Additional file 2:
Alignment of deduced amino acid sequences for C-terminus of Terebratalia c-opsin and representative c-opsins from other taxa. Alignment of the of Terebratalia c-opsin C-terminus to the C-termini of other c-opsins. The conserved C-terminus domain is required for localization of c-opsin proteins to the ciliary compartment, through binding to the light chain dynein Tctex-1 [60].
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Middle gastrula swimming prior to directional illumination. Time lapse imaging of middle gastrula stage embryos swimming in the phototaxis chamber prior to the initiation of directional illumination. Embryos are evenly distributed throughout the chamber. Frame rate is 5× faster than real-time.
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Middle gastrula swimming with directional illumination. Time lapse imaging of middle gastrula stage embryos swimming in the phototaxis chamber 20 minutes after the initiation of directional illumination. Embryos are clustered on the left side of the chamber, closest to the source of directional illumination. Frame rate is 5× faster than real-time.
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Middle gastrula swimming after directional illumination. Time lapse imaging of middle gastrula stage embryos swimming in the phototaxis chamber 10 minutes after the cessation of directional illumination. Embryos have returned to an even distribution throughout the chamber. Frame rate is 5× faster than real-time.
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