Video of C. teleta larval phototaxis from CRISPR/CAS9 mutagenesis of a single r-opsin gene blocks phototaxis in a marine larva

2019-05-17T08:41:47Z (GMT) by S. Neal D. M. de Jong E. C. Seaver
C. teleta larvae exhibit robust positive phototaxis. Larvae swim towards a directional light source, located to the top left corner, immediately outside the field of view. The light source is a white LED light. Video is at 2x speed.