Results 91 to 100 of about 2,240 (170)

Evolution and connectivity in the world-wide migration system of the mallard: Inferences from mitochondrial DNA

BMC Genetics, 2011
Background Main waterfowl migration systems are well understood through ringing activities. However, in mallards (Anas platyrhynchos) ringing studies suggest deviations from general migratory trends and traditions in waterfowl.
Kraus Robert HS, Zeddeman Anne, van Hooft Pim, Sartakov Dmitry, Soloviev Sergei A, Ydenberg Ronald C, Prins Herbert HT   +6 more
doaj   +1 more source

Using molecular tools to guide management of invasive alien species: assessing the genetic impact of a recently introduced island bird population [PDF]

, 2015
Aim: Biological invasions are a major threat to island biodiversity and are responsible for a large proportion of species declines and extinctions worldwide.
van de Crommenacker, J, Fleischer-Dogley, F., Jackson, H, N. Bunbury, F. Fleischer‐Dogley, B. H. Warren, Bunbury, N., J. Groombridge, H. Jackson, J. van de Crommenacker, Warren, Ben H, van de Crommenacker, J., Jackson, H., Groombridge, Jim J., Y. X. C. Bourgeois, Bourgeois, Y X C, Fleischer-Dogley, F, Crommenacker, J van de, Warren, B. H., Bunbury, N, Bourgeois, Y. X. C., Groombridge, J, Groombridge, J.   +22 more
core   +1 more source

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

BMC Biology, 2008
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'),
Sorenson Michael D, García-Moreno Jaime, Rest Joshua S, Brown Joseph W, Mindell David P   +4 more
doaj   +1 more source

Host specificity in avian blood parasites: a study of Plasmodium and Haemoproteus mitochondrial DNA amplified from birds [PDF]

, 2000
A fragment of the mitochondrial cytochrome b gene of avian malaria (genera Haemoproteus and Plasmodium) was amplified from blood samples of 12 species of passerine birds from the genera Acrocephalus, Phylloscopus and Parus.
Hasselquist, Dennis, Pinheiro, RT, Westerdahl, Helena, Bensch, Staffan,, Stjernman, Martin,, Westerdahl, Helena,, Stjernman, Martin, Hansson, Bengt,, Östman, Örjan, Hansson, Bengt, Bensch, Staffan, Hasselquist, Dennis,, Lund University.   +12 more
core   +1 more source

Range-wide genetic population structure in common pochard (Aythya ferina) a potentially important vector of highly pathogenic avian influenza viruses

, 2011
An understanding of the distribution and spatial structure of the natural vectors of zoonothic pathogens is of interest for effective disease control and prevention.
Heckel, G., Keller, Irene, Keller, I., Irene Keller, Gerald Heckel, Heckel, Gerald, Liu, Y., Liu, Yang, Yang Liu   +8 more
core   +1 more source

Profiling the dead: generating microsatellite data from fossil bones of extinct Megafauna — protocols, problems, and prospects

, 2011
We present the first set of microsatellite markers developed exclusively for an extinct taxon. Microsatellite data have been analysed in thousands of genetic studies on extant species but the technology can be problematic when applied to low copy number (
Holdaway, R.N., Houston, J., Allentoft, M.E., Willerslev, E., Rasmussen, M., Gilbert, M.T.P, Spencer, P., Jacomb, C., Bunce, M., Oskam, C.L., Hale, M.L.   +10 more
core  

Avian diversification patterns across the K-Pg boundary: Influence of calibrations, datasets, and model misspecification

, 2015
Birds represent the most diverse extant tetrapod clade, with ca. 10,000 extant species, and the timing of the crown avian radiation remains hotly debated.
Ksepka, Daniel T., Phillips, Matthew J, Phillips, Matthew J.   +2 more
core   +1 more source

Search for virus specific DNA sequences and viral particles in mitochondria of avian leukemic myeloblasts

The intracellular localization of the avian myeloblastosis virus (AMV) genome was studied. Nuclear and mitochondrial DNAs from myeloblasts were examined by hybridization with 32P labeled AMV-RNA of high molecular weight for the presence of virus specific
Oda, Takuzo, Ogura, Hajime
core  

Phylogeography and Pleistocene refugia of the Little Owl (Athene noctua) as inferred from mtDNA sequence data

, 2014
Pleistocene glaciations deeply affected the distribution of genetic diversity in animal populations. The Little Owl Athene noctua, is widely distributed in temperate regions and could have survived the last glaciations in southern refugia.
Pavia M, Boano G, Randi E., Mucci N, Negri A, Pellegrino I, Salek M, CUCCO, Marco   +7 more
core   +1 more source

Identification and characterization of a perfect mono-nucleotide microsatellite within 16S rRNA gene in chicken mtDNA genome

, 2010
An alignment of 17 complete mitochondrial DNA (mtDNA) sequences of chickens and jungle fowls revealed a perfect mono-nucleotide microsatellite repeat unit consisting of between 8 and 13 Cs within the 16S rRNA gene in nine samples.
Shengguo, Z., Hanotte, Olivier H., Han Jianlin   +2 more
core