Cone-Like Functional Properties of cGMP-Gated Channels in Rod-Like Retinal Photoreceptors of Nocturnal Geckoes

Nocturnal geckoes' retinas contain only scotopic photoreceptors with rod-shaped outer segments and light sensitivity close to that of retinal rods of other lower vertebrate organisms. These cells, however, are not rods, but are originally derived from cones of ancestral diurnal

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