Molecular phylogenetics of the hummingbird genus Coeligena

Advances in the understanding of biological radiations along tropical mountains depend on the knowledge of phylogenetic relationships among species. Here we present a species-level molecular phylogeny based on a multilocus dataset for the Andean hummingbird genus Coeligena. We compare this phylogeny to previous hypotheses of evolutionary relationships and use it as a framework to understand patterns in the evolution of sexual dichromatism and in the biogeography of speciation within the Andes. Previous phylogenetic hypotheses based mostly on similarities in coloration conflicted with our molecular phylogeny, emphasizing the unreliability of color characters for phylogenetic inference. Two major clades, one monochromatic and the other dichromatic, were found in Coeligena. Closely related species were either allopatric or parapatric on opposite mountain slopes. No sister lineages replaced each other along an elevational gradient. Our results indicate the importance of geographic isolation for speciation in this group and the potential interaction between isolation and sexual selection to promote diversification.

Medienart:

E-Artikel

Erscheinungsjahr:

2009

Erschienen:

2009

Enthalten in:

Zur Gesamtaufnahme - volume:53

Enthalten in:

Molecular phylogenetics and evolution - 53(2009), 2 vom: 15. Nov., Seite 425-34

Sprache:

Englisch

Beteiligte Personen:

Parra, Juan Luis [VerfasserIn]
Remsen, J V [VerfasserIn]
Alvarez-Rebolledo, Mauricio [VerfasserIn]
McGuire, Jimmy A [VerfasserIn]

Links:

Volltext

Themen:

DNA, Mitochondrial
Journal Article
Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, Non-P.H.S.

Anmerkungen:

Date Completed 14.10.2009

Date Revised 31.08.2009

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1016/j.ympev.2009.07.006

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM189939583