Geographic and genetic boundaries of brown bear (Ursus arctos) population in the Caucasus

@article{Murtskhvaladze2010GeographicAG,
  title={Geographic and genetic boundaries of brown bear (Ursus arctos) population in the Caucasus},
  author={Marine Murtskhvaladze and Alexander Gavashelishvili and David Tarkhnishvili},
  journal={Molecular Ecology},
  year={2010},
  volume={19}
}
The taxonomic status of brown bears in the Caucasus remains unclear. Several morphs or subspecies have been identified from the morphological (craniological) data, but the status of each of these subspecies has never been verified by molecular genetic methods. We analysed mitochondrial DNA sequences (control region) to reveal phylogenetic relationships and infer divergence time between brown bear subpopulations in the Caucasus. We estimated migration and gene flow from both mitochondrial DNA… 
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Exceptional maternal lineage diversity in brown bears (Ursus arctos) from Turkey

This study reveals a high level of mitochondrial diversity in Turkish U. arctos, shows that the ranges of both European and Middle Eastern clades extend into Turkey, and identifies a new divergent lineage of possibly wider historical occurrence.

Molecular phylogeography of the brown bear (Ursus arctos) in Northeastern Asia based on analyses of complete mitochondrial DNA sequences.

The maternal phylogeny of the brown bear is reconstructed and estimated divergence times are estimated to investigate the timing of brown bear migrations, especially in northeastern Eurasia.

Mitochondrial DNA haplogrouping of the brown bear, Ursus arctos (Carnivora: Ursidae) in Asia, based on a newly developed APLP analysis

This work developed an amplified product length polymorphism (APLP) analysis for mtDNA-haplogrouping U. arctos specimens by detecting haplogroup-specific SNPs and revealed some of the same haplogroups as those occurring in eastern Hokkaido and eastern Alaska in continental Eurasia.

Paternal phylogeographic structure of the brown bear (Ursus arctos) in northeastern Asia and the effect of male-mediated gene flow to insular populations

The results indicate that sex-biased dispersal has played a significant role in the evolutionary history of the brown bear in continental populations and in peripheral insular populations, such as on Hokkaido, the southern Kuril Islands, and Sakhalin.

Speciation in Caucasian lizards: climatic dissimilarity of the habitats is more important than isolation time

Analysis of the morphological and genetic boundaries of three species of the rock lizard clade Darevskia ‘rudis’ in relation to the environment found differential landscape-dependent selection within the contact zones is likely to have triggered the rapid development of isolation mechanisms.

Phylogeography of the Brown Bear ( Ursus arctos ) in Northeastern Asia Based on Analyses of Complete Mitochondrial DNA Sequences

The maternal phylogeny of the brown bear is reconstructed and estimated divergence times are estimated to investigate the timing of brown bear migrations, especially in northeastern Eurasia.

Population genetics of the main population of brown bears in southwest Asia

Genetic studies of the Eurasian brown bear (Ursus arctos) have so far focused on populations from Europe and North America, although the largest distribution area of brown bears is in Asia. In this…

Noninvasive genetic assessment of brown bear population structure in Bulgarian mountain regions

Population Genetic Structure of the Asian Black Bear (Ursus thibetanus) within and Across Management Units in Northern Japan

The presence of subpopulations within an MU suggests that each MU is not always a single demographic unit, and genetic variation in the mitochondrial DNA control region and seven autosomal microsatellite loci was assessed in bears captured in southern Tohoku indicated that genetically distinct sub Populations are localized to areas that correspond roughly to MUs.

Mitochondrial DNA analysis of Iranian brown bears (Ursus arctos) reveals new phylogeographic lineage

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References

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