Blending of animal colour patterns by hybridization
Identifieur interne : 000252 ( Main/Exploration ); précédent : 000251; suivant : 000253Blending of animal colour patterns by hybridization
Auteurs : Seita Miyazawa [Japon] ; Michitoshi Okamoto [Japon] ; Shigeru Kondo [Japon]Source :
- Nature Communications [ 2041-1723 ] ; 2010.
Abstract
Biologists have long been fascinated by the amazing diversity of animal colour patterns. Despite much interest, the underlying evolutionary and developmental mechanisms contributing to their rich variety remain largely unknown, especially the vivid and complex colour patterns seen in vertebrates. Here, we show that complex and camouflaged animal markings can be formed by the 'blending' of simple colour patterns. A mathematical model predicts that crossing between animals having inverted spot patterns (for example, 'light spots on a dark background' and 'dark spots on a light background') will necessarily result in hybrid offspring that have camouflaged labyrinthine patterns as 'blended' intermediate phenotypes. We confirmed the broad applicability of the model prediction by empirical examination of natural and artificial hybrids of salmonid fish. Our results suggest an unexplored evolutionary process by means of 'pattern blending', as one of the possible mechanisms underlying colour pattern diversity and hybrid speciation.
Url:
DOI: 10.1038/ncomms1071
PubMed: 20842190
PubMed Central: 2982180
Affiliations:
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Despite much interest, the underlying evolutionary and developmental mechanisms contributing to their rich variety remain largely unknown, especially the vivid and complex colour patterns seen in vertebrates. Here, we show that complex and camouflaged animal markings can be formed by the 'blending' of simple colour patterns. A mathematical model predicts that crossing between animals having inverted spot patterns (for example, 'light spots on a dark background' and 'dark spots on a light background') will necessarily result in hybrid offspring that have camouflaged labyrinthine patterns as 'blended' intermediate phenotypes. We confirmed the broad applicability of the model prediction by empirical examination of natural and artificial hybrids of salmonid fish. Our results suggest an unexplored evolutionary process by means of 'pattern blending', as one of the possible mechanisms underlying colour pattern diversity and hybrid speciation.</p></div></front><back><div1 type="bibliography"><listBibl><biblStruct><analytic><author><name sortKey="Murray, J D" uniqKey="Murray J">J. D. Murray</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Carroll, S B" uniqKey="Carroll S">S. B. Carroll</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Gompel, N" uniqKey="Gompel N">N. Gompel</name></author><author><name sortKey="Prud Homme, B" uniqKey="Prud Homme B">B. Prud'homme</name></author><author><name sortKey="Wittkopp, P J" uniqKey="Wittkopp P">P. J. Wittkopp</name></author><author><name sortKey="Kassner, V A" uniqKey="Kassner V">V. A. Kassner</name></author><author><name sortKey="Carroll, S B" uniqKey="Carroll S">S. B. 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Parichy</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Yamanoue, Y" uniqKey="Yamanoue Y">Y. Yamanoue</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Murray, J D" uniqKey="Murray J">J. D. Murray</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Gray, P" uniqKey="Gray P">P. Gray</name></author><author><name sortKey="Scott, S K" uniqKey="Scott S">S. K. Scott</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Suzuki, R" uniqKey="Suzuki R">R. Suzuki</name></author><author><name sortKey="Fukuda, Y" uniqKey="Fukuda Y">Y. Fukuda</name></author></analytic></biblStruct></listBibl></div1></back></TEI><affiliations><list><country><li>Japon</li></country></list><tree><country name="Japon"><noRegion><name sortKey="Miyazawa, Seita" sort="Miyazawa, Seita" uniqKey="Miyazawa S" first="Seita" last="Miyazawa">Seita Miyazawa</name></noRegion><name sortKey="Kondo, Shigeru" sort="Kondo, Shigeru" uniqKey="Kondo S" first="Shigeru" last="Kondo">Shigeru Kondo</name><name sortKey="Okamoto, Michitoshi" sort="Okamoto, Michitoshi" uniqKey="Okamoto M" first="Michitoshi" last="Okamoto">Michitoshi Okamoto</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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