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New Primers for the Avian SWS1 Pigment Opsin Gene Reveal New Amino Acid Configurations in Spectral Sensitivity Tuning Sites
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Evolution, Animal Ecology. (Avian vision)
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Physiology and Developmental Biology, Evolutionary Organism Biology. (Avian vision)
2009 (English)In: Journal of Heredity, ISSN 0022-1503, E-ISSN 1465-7333, Vol. 100, no 6, 784-789 p.Article in journal (Refereed) Published
Abstract [en]

Recently, polymerase chain reaction-based estimates of visual pigment spectral tuning from genomic DNA have offered an alternative to the authoritative but rather slow and complicated retinal microspectrophotometry method. The genomic DNA method involves sequencing a fragment of the short-wavelength sensitive pigment, type 1 (SWS1) opsin gene covering amino acid positions 86, 90, and 93 and has been utilized in a wide range of avian species. Other key tuning sites have been proposed but not sequenced in the genomic DNA-based spectral sensitivity studies. We have designed 5 new primers for sequencing gene fragments of the ultraviolet-/violet-tuned SWS1 opsin gene containing the first, second and third, and sixth and seventh α-helical transmembrane regions and the spectral tuning sites 49, 86, 90, 93, 116, 118 and 298. Testing these primers on various bird species reveals some novel combinations of amino acid residues at the tuning sites. The potential significance of these on spectral tuning is discussed.

Place, publisher, year, edition, pages
2009. Vol. 100, no 6, 784-789 p.
Keyword [en]
color vision, sequencing, ultraviolet sensitive, violet sensitive
National Category
Biological Sciences
Research subject
Biology with specialization in Molecular Biology; Biology with specialization in Evolutionary Functional Genomics
Identifiers
URN: urn:nbn:se:uu:diva-120018DOI: 10.1093/jhered/esp060ISI: 000271817600013OAI: oai:DiVA.org:uu-120018DiVA: diva2:302185
Available from: 2010-03-04 Created: 2010-03-04 Last updated: 2017-12-12Bibliographically approved

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Ödeen, AndersHåstad, Olle

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