Local Origin and Diversification Among Lampornis Hummingbirds: a Mesoamerican Taxon.
From: Max Planck Institiute for Ornithology, Vogelwarte Radolfzell, Schlossalleé 2, D-78315 Radolfzell, Germany. j.garciamoreno@conservation.org
Molecular phylogenetics and evolution
- Publish Date: Feb 2006
- ISSN: 1055-7903
- Volume: 38
- Issue: 2
- Pages: 488-98
- Medium: Print
- Language: English
- Citation (JAMA): García-Moreno Jaime, Cortés Nandadeví, García-Deras Gabriela M, et al. Local Origin and Diversification Among Lampornis Hummingbirds: a Mesoamerican Taxon.. Mol. Phylogenet. Evol. Feb 2006;38:488-98
Abstract
The huge biodiversity found in Mesoamerica is often explained by its geographic situation as a natural bridge between two large biogeographic regions. Often overlooked, however, are the high levels of speciation and diversification in the area. Here we assess the phylogenetic relationships within a Mesoamerican group of hummingbirds (Lampornis). We sequenced both mtDNA (1,143 bp of cyt b and 727 bp of ND5) and nuclear genes (505 bp of AK-5 intron and 567 bp of c-mos) for each of the seven recognised species and outgroups. We find two or three clades of similar age within this genus: L. clemenciae and L. amethystinus (singly or as each other’s sister taxa) and a Central American clade. This Central-American clade presents a clear bipartition between northern (L. viridipallens and L. sybillae) and southern Mesoamerica, which is shared with many other Mesoamerican organisms. Our analyses suggest that L. hemileucus does not belong in the genus Lampornis. While we refrain to apply a time-scale to our data because of the lack of an appropriate calibration, our results indicate that the genus Lampornis predates the uprising of the Panama land-bridge, and that diversification among the isthmian species (L. castaneoventris and L. calolaema) is a very recent event. Our results strongly suggest a local Mesoamerican origin for this genus.
Mesh Headings (Keywords): Animals, Birds, Cytochromes b, DNA, Mitochondrial, NADPH Dehydrogenase, North America, Phylogeny, South America, Variation (Genetics)
Check for Full Text / PubMed Unique Identifier (PMID): 16257241
This abstract is part of PubMed, a service of the U.S. National Library of Medicine. PubMed includes more than 17 million citations from MEDLINE and other life science journals for biomedical articles. See Copyright and Disclaimers.
Linked medical terms appearing on this page are added by Healia to help readers find more information and are not part of the original PubMed document.
The data herein was last updated on July 8th, 2008 and may not reflect the most current and accurate data available from NLM.