Spectral Tuning of Shortwave-sensitive Visual Pigments in Vertebrates[dagger]

From: Photochemistry and Photobiology | Date: March 1, 2007| Author: Hunt, David M; Carvalho, LÃ ­ via S; Cowing, Jill A; Parry, Juliet W L; Et al | Copyright information

ABSTRACT

Of the four classes of vertebrate cone visual pigments, the shortwave-sensitive SWS1 class shows some of the largest shifts in λ^sub max^, with values ranging in different species from 390-435 nm in the violet region of the spectrum to <360 nm in the ultraviolet. Phylogenetic evidence indicates that the ancestral pigment most probably had a λ^sub max^ in the UV and that shifts between violet and UV have occurred many times during evolution. In violet-sensitive (VS...

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