English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/134725
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:


Investigating the role of the Melanocortin-1 Receptor gene in an extreme case of microgeographical variation in the pattern of melanin-based plumage pigmentation

AuthorsBourgeois, Yann X. C.; Bertrand, Joris A. M.; Thébaud, Christophe; Milá, Borja
Issue Date5-Dec-2012
PublisherPublic Library of Science
CitationPLoS ONE 7(12): e50906 (2012)
AbstractThe Réunion grey white-eye (Zosterops borbonicus) is a single-island endemic passerine bird that exhibits striking geographically structured melanic polymorphism at a very small spatial scale. We investigated the genetic basis of this color polymorphism by testing whether the melanocortin-1 receptor (MC1R), a gene often involved in natural melanic polymorphism in birds, was associated with the observed plumage variation. Although we found three non-synonymous mutations, we detected no association between MC1R variants and color morphs, and the main amino-acid variant found in the Réunion grey white-eye was also present at high frequency in the Mauritius grey white-eye (Zosterops mauritianus), its sister species which shows no melanic polymorphism. In addition, neutrality tests and analysis of population structure did not reveal any obvious pattern of positive or balancing selection acting on MC1R. Altogether these results indicate that MC1R does not play a role in explaining the melanic variation observed in the Réunion grey white-eye. We propose that other genes such as POMC, Agouti or any other genes involved in pigment synthesis will need to be investigated in future studies if we are to understand how selection shapes complex patterns of melanin-based plumage pigmentation.
DescriptionReceived: August 23, 2012; Accepted: October 26, 2012; Published: December 5, 2012
Publisher version (URL)http://dx.doi.org/10.1371/journal.pone.0050906
Appears in Collections:(MNCN) Artículos
Files in This Item:
File Description SizeFormat 
PLoS ONE 7(12) e50906.PDF231,21 kBAdobe PDFThumbnail
Show full item record
Review this work

Related articles:

WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.