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Nuclear DNA does not reconcile ‘rocks’ and ‘clocks’ in Neoaves: a comment on Ericson et al.

Joseph W Brown * Robert B Payne David P Mindell Receive free email alerts when new articles cite this article - sign up in the box at the top right-hand corner of the article or click here

It's not too Late for the Harpy Eagle (Harpia harpyja): High Levels Of Genetic Diversity and Differentiation Can Fuel Conservation Programs

Background The harpy eagle (Harpia harpyja) is the largest Neotropical bird of prey and is threatened by human persecution and habitat loss and fragmentation. Current conservation strategies include local education, captive rearing and reintroduction, and protection or creation of trans-national habitat blocks and corridors. Baseline genetic data prior to reintroduction of...

Population structure and plumage polymorphism: The intraspecific evolutionary relationships of a polymorphic raptor, Buteo jamaicensis harlani

Joshua M Hull 0 David P Mindell Sandra L Talbot Emily H Kay Hopi E Hoekstra Holly B Ernest 0 0 Wildlife and Ecology Unit, Veterinary Genetics Laboratory, University of California , One Shields

Retroids in Archaea: Phylogeny and Lateral Origins

Until recently, none of the diverse elements bearing reverse transcriptase (retroids) have been known from Archaea. However, in the recently published genomes of the acetate-utilizing archaeal methanogens, Methanosarcina acetivorans and M. mazei, several open reading frames (ORFs) are annotated as reverse transcriptase (RT). These annotations led us to the characterization of a...

Prioritizing species conservation: does the Cape Verde kite exist?

The Cape Verde kite (Milvus milvus fasciicauda) is considered to be one of the rarest birds of prey in the world and at significant risk of extinction. For this reason there is great interest in both the taxonomic and the population status of this group. To help resolve its taxonomic status, we provide phylogenetic analyses based on three mitochondrial genes for a sampling of...

Strong mitochondrial DNA support for a Cretaceous origin of modern avian lineages

Background Determining an absolute timescale for avian evolutionary history has proven contentious. The two sources of information available, paleontological data and inference from extant molecular genetic sequences (colloquially, 'rocks' and 'clocks'), have appeared irreconcilable; the fossil record supports a Cenozoic origin for most modern lineages, whereas molecular genetic...

Rooting a Phylogeny with Homologous Genes on Opposite Sex Chromosomes (Gametologs): A Case Study Using Avian CHD

We describe a previously unrecognized form of gene homology using the term “gametology,” which we define as homology arising through lack of recombination and subsequent differentiation of sex chromosomes. We demonstrate use of gametologous genes to root each other in phylogenetic analyses of sex-specific avian Chromo-helicase-DNA binding gene (CHD) sequences. Phylogenetic...

Evolutionary Biology for the 21st Century

New theoretical and conceptual frameworks are required for evolutionary biology to capitalize on the wealth of data now becoming available from the study of genomes, phenotypes, and organisms - including humans - in their natural environments.

Systematics within Gyps vultures: a clade at risk

Background Populations of the Oriental White-backed Vulture (Gyps bengalensis) have declined by over 95% within the past decade. This decline is largely due to incidental consumption of the non-steroidal anti-inflammatory veterinary pharmaceutical diclofenac, commonly used to treat domestic livestock. The conservation status of other Gyps vultures in southern Asia is also of...

The Use of Genetics for the Management of a Recovering Population: Temporal Assessment of Migratory Peregrine Falcons in North America

Background Our ability to monitor populations or species that were once threatened or endangered and in the process of recovery is enhanced by using genetic methods to assess overall population stability and size over time. This can be accomplished most directly by obtaining genetic measures from temporally-spaced samples that reflect the overall stability of the population as...

More Taxa, More Characters: The Hoatzin Problem Is Still Unresolved

Elen Oneal 1 2 Jaime Garca-Moreno 0 David P. Mindell 0 Present address: Max Planck Research Centre for Ornithology , Vogelwarte Radolfzell, Radolfzell, Germany. Key words: Anseriformes, avian

Dihydropteroate Synthase Polymorphisms in Pneumocystis carinii

Sulfa drugs are widely used in the treatment and prophylaxis of Pneumocystis carinii pneumonia.