Evolution of the shut-off steps of vertebrate phototransduction
نویسندگان
چکیده
منابع مشابه
Evolution of the shut-off steps of vertebrate phototransduction
Different isoforms of the genes involved in phototransduction are expressed in vertebrate rod and cone photoreceptors, providing a unique example of parallel evolution via gene duplication. In this study, we determine the molecular phylogeny of the proteins underlying the shut-off steps of phototransduction in the agnathan and jawed vertebrate lineages. For the G-protein receptor kinases (GRKs)...
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Evidence is reviewed from a wide range of studies relevant to the evolution of vertebrate photoreceptors and phototransduction, in order to permit the synthesis of a scenario for the major steps that occurred during the evolution of cones, rods and the vertebrate retina. The ancestral opsin originated more than 700 Mya (million years ago) and duplicated to form three branches before cnidarians ...
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ژورنال
عنوان ژورنال: Open Biology
سال: 2018
ISSN: 2046-2441
DOI: 10.1098/rsob.170232