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Characterization of opsin gene alleles affecting color vision in a wild population of titi monkeys (Callicebus brunneus)

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Citation

Bunce, J. A., Isbell, L. A., Neitz, M., Bonci, D., Surridge, A. K., Jacobs, G. H., et al. (2011). Characterization of opsin gene alleles affecting color vision in a wild population of titi monkeys (Callicebus brunneus). American Journal of Primatology, 73(2), 189-196. doi:10.1002/ajp.20890.


Cite as: http://hdl.handle.net/11858/00-001M-0000-002D-E768-B
Abstract
The color vision of most platyrrhine primates is determined by alleles at the polymorphic X-linked locus coding for the opsin responsible for the middle- to long-wavelength (M/L) cone photopigment. Females who are heterozygous at the locus have trichromatic vision, whereas homozygous females and all males are dichromatic. This study characterized the opsin alleles in a wild population of the socially monogamous platyrrhine monkey Callicebus brunneus (the brown titi monkey), a primate that an earlier study suggests may possess an unusual number of alleles at this locus and thus may be a subject of special interest in the study of primate color vision. Direct sequencing of regions of the M/L opsin gene using feces-, blood-, and saliva-derived DNA obtained from 14 individuals yielded evidence for the presence of three functionally distinct alleles, corresponding to the most common M/L photopigment variants inferred from a physiological study of cone spectral sensitivity in captive Callicebus. Am. J. Primatol. 73:189–196, 2011. © 2010 Wiley-Liss, Inc.