Long-wavelength sensitive visual pigments of the guppy (Poecilia reticulata): six opsins expressed in a single individual.

ABSTRACT:

Background

The diversity of visual systems in fish has long been of interest for evolutionary biologists and neurophysiologists, and has recently begun to attract the attention of molecular evolutionary geneticists. Several recent studies on the copy number and genomic organization of visual pigment proteins, the opsins, have revealed an increased opsin diversity in fish relative to most vertebrates, brought about through recent instances of opsin duplication and divergence. However, for the subfamily of opsin genes that mediate vision at the long-wavelength end of the spectrum, the LWS opsins, it appears that most fishes possess only one or two loci, a value comparable to most other vertebrates. Here, we characterize the LWS opsins from cDNA of an individual guppy, Poecilia reticu

SUBMITTER: Weadick CJ 

PROVIDER: S-EPMC1796605 | biostudies-literature | 2007 Feb

REPOSITORIES: biostudies-literature