English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/114730
Compartir / Impacto:
Estadísticas
Add this article to your Mendeley library MendeleyBASE
 |  Ver citas en Google académico
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar otros formatos: Exportar EndNote (RIS)Exportar EndNote (RIS)Exportar EndNote (RIS)
Título

The phylogeography of red and yellow coppersmith barbets (Aves: Megalaima haemacephala)

Autor den Tex, Robert-Jan; Leonard, Jennifer A.
Palabras clave Sundaland
Carotenoid coloration
Dimorphism
cyt b
Intron
FIB7
carotenoidcoloration,Sundaland
ND2
Tropical east Asia
Fecha de publicación 2014
EditorFrontiers Media
Citación Frontiers in ECOLOGY AND EVOLUTION 2 (2014)
ResumenUnderstanding the evolution of color in birds is important because it is used for both inter- and intra-specific communication and is often linked to other important traits including life history, behavior, immunology, and mate choice. The coppersmith barbet (Megalaima haemacephala) is widely distributed across southern Asia and many islands of the Sunda shelf and the Philippines. It occurs in two well-differentiated and completely allopatrically distributed color morphs, a red- and a yellow-headed form. We constructed a phylogeny of coppersmith barbets from both color morphs and from across their range using sequences from two mitochondrial and one nuclear loci. Strong geographical patterns were found, in which India and Sri Lanka, the Philippines and mainland tropical east Asia (TE Asia) and the islands on the Sunda shelf (Sundaland) each formed a divergent group. The red birds formed two clades within the diversity of yellow animals. Major clades were dated using a molecular clock calibrated on a larger phylogeny. The phylogeographic patterns suggest that the species likely originated in TE Asia/Sundaland and then colonized the Philippines from the south in the mid-Pleistocene, via a now extinct population on Borneo. More recently, coppersmith barbets colonized India and Sri Lanka, also from TE Asia/Sundaland. Coppersmith barbets were also likely distributed on the Malay Peninsula, but went extinct there too. The population that now inhabits this region derives from a natural recolonization of yellow morph birds about 80 years ago. The red morph evolved at least twice independently from the yellow morph in the late Pleistocene, suggesting that this change does not require very many mutational steps, and thus can arise relatively frequently, on an evolutionary timescale. This system may be ideal for further studies of the genetics of carotenoid coloration.
URI http://hdl.handle.net/10261/114730
DOI10.3389/fevo.2014.00016
Identificadoresdoi: 10.3389/fevo.2014.00016
issn: 2296-701X
Aparece en las colecciones: (EBD) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
fevo-02-00016.pdf1,04 MBAdobe PDFVista previa
Visualizar/Abrir
Mostrar el registro completo
 


NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.