Adaptive Evolution of Color Vision Genes in Higher Primates

The intron 4 sequences of the three polymorphic alleles at the X-linked color photopigment locus in the squirrel monkey and the marmoset reveal that the alleles in each species are exceptionally divergent. The data further suggest either that each triallelic system has arisen independently in these...

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Bibliographic Details
Published in:Science (American Association for the Advancement of Science) 1995-09, Vol.269 (5228), p.1265-1267
Main Authors: Shyue, Song-Kun, Hewett-Emmett, David, Sperling, Harry G., Hunt, David M., Bowmaker, James K., Mollon, John D., Li, Wen-Hsiung
Format: Article
Language:English
Subjects:
Alleles
Amino Acid Sequence
Amino acids
Animals
Biological and medical sciences
Biological Evolution
Callithrix
Color
Color Perception - genetics
Color vision
Evolution
Evolution (Biology)
Eye Proteins - genetics
Eyes & eyesight
Fundamental and applied biological sciences. Psychology
Gene Conversion
Genetic aspects
Genetic Linkage
Genetics
Genetics of eukaryotes. Biological and molecular evolution
Humans
Introns
Male
Molecular Sequence Data
Monkeys
Monkeys & apes
Pigments
Polymerase chain reaction
Primates
Recombination, Genetic
Repetitive Sequences, Nucleic Acid
Retinal Pigments - genetics
Rod Opsins
Saimiri
Sequence Deletion
Species Specificity
Spectral sensitivity
Squirrels
X Chromosome
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Summary:The intron 4 sequences of the three polymorphic alleles at the X-linked color photopigment locus in the squirrel monkey and the marmoset reveal that the alleles in each species are exceptionally divergent. The data further suggest either that each triallelic system has arisen independently in these two New World monkey lineages, or that in each species at least seven deletions and insertions (14 in the two species) in intron 4 have been transferred and homogenized among the alleles by gene conversion or recombination. In either case, the alleles in each species apparently have persisted more than 5 million years and probably have been maintained by overdominant selection.
ISSN:0036-8075
1095-9203
DOI:10.1126/science.7652574