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Brown hares on the edge: Genetic population structure of the Danish brown hare

100%

Andersen L. W., Fredsted T., Wincentz T., Pertoldi C.

Acta Theriologica

2009

tom 54

nr 2

97-110

Denmark lies on the edge of the distributional range of the brown hareLepus europaeus Pallas, 1778, where population differentiation is most likely to occur. A total of 369 brown hares from eight geographically distinct Danish European brown hare populations were used to study the genetic population structure. In all, 480bp of the mitochondrial D-loop were sequenced in both directions. Observed genetic diversity (π) was relatively low (π=0.41%) while haplotype diversity (h=0.808) and the number of unique haplotypes (19) were similar to levels found in other European brown hare populations. The observed population structure was pronounced (pairwise conventionalF ST and ϕ st ranged between 6.9–57% and 5–69.8%, respectively). There was no correlation between the geographic and the genetic distance. Population structure was influenced by genetic drift, anthropogenic effects (eg translocation and escapes from hare-farms) and by post-glacial recolonization from southern refuges or refuges north east of the Black Sea. Analysis of historical population expansion/fluctuation events indicated that the populations have experienced different demographic events in the recent past. Relatively high sequence divergence between some populations might be explained by multiple recolonization events after the last Pleistocene glaciations or by stocking effects. Colonization from southern refuges was supported by the observation that haplotype 2 in the Danish brown hare was identical to the central European ancestral haplotype c07.

Phylogenetic relationships among the European and American bison and seven cattle breeds reconstructed using the BovineSNP50 Illumina Genotyping BeadChip

51%

Pertoldi C., Tokarska M., Wojcik J. M., Kawalko A., Randi E., Kristensen T. N., Loeschcke V., Coltman D., Wilson G. A., Gregersen V. R., Bendixen C.

Acta Theriologica

2010

tom 55

nr 2

97-108

Here we present the first attempt to use the BovineSNP50 Illumina Genotyping BeadChip for genome-wide screening of European bison Bison bonasus bonasus (EB), two subspecies of American bison: the plains bison Bison bison bison (PB), the wood bison Bison bison athabascae (WB) and seven cattle Bos taurus breeds. Our aims were to (1) reconstruct their evolutionary relationships, (2) detect any genetic signature of past bottlenecks and to quantify the consequences of bottlenecks on the genetic distances amongst bison subspecies and cattle, and (3) detect loci under positive or stabilizing selection. A Bayesian clustering procedure (STRUCTURE) detected ten genetically distinct clusters, with separation among all seven cattle breeds and European and American bison, but no separation between plain and wood bison. A linkage disequilibrium based program (LDNE) was used to estimate the effective population size (N e) for the cattle breeds; N e was generally low, relative to the census size of the breeds (cattle breeds: mean N e = 299.5, min N e = 18.1, max N e = 755.0). BOTTLENECK 1.2 detected signs of population bottlenecks in EB, PB and WB populations (sign test and standardized sign test: p = 0.0001). Evidence for loci under selection was found in cattle but not in bison. All extant wild populations of bison have shown to have survived severe bottlenecks, which has likely had large effects on genetic diversity within and differentiation among groups.

Long-distance dispersal of a wolf, Canis lupus, in northwestern Europe

51%

Andersen L. W., Harms V., Caniglia R., Czarnomska S. D., Fabbri E., Jedrzejewska B., Kluth G., Madsen A. B., Nowak C., Pertoldi C., Randi E., Reinhardt I., Stronen A. V.

Acta Theriologica

2015

tom 60

nr 2

Several mammal species have recolonized their historical ranges across Europe during the last decades. In November 2012, a wolf-looking canid was found dead in Thy National Park (56° 56′ N, 8° 25′ E) in Jutland, Denmark. DNA from this individual and nine German wolves were genotyped using a genome-wide panel of 22,163 canine single nucleotide polymorphism (SNP) markers and compared to existing profiles based on the same marker panel obtained from northeastern Polish (n = 13) wolves, domestic dogs (n = 13) and known wolf-dog hybrids (n = 4). The Thy canid was confirmed to be a wolf from the German-western Polish population, approximately 800 km to the southeast. Access to the German reference database on DNA profiles based on 13 autosomal microsatellites of German wolves made it possible to pinpoint the exact pack origin of the Thy wolf in Saxony, Germany. This was the first documented observation of a wolf in Denmark in 200 years and another example of long-distance dispersal of a carnivore.

Ograniczanie wyników

3 Acta Theriologica

3 Pertoldi C.

2 Andersen L. W.

2 Randi E.

1 Bendixen C.

1 Caniglia R.

1 Coltman D.

1 Czarnomska S. D.

1 Fabbri E.

1 Fredsted T.

1 Gregersen V. R.

1 Harms V.

1 Jedrzejewska B.

1 Kawalko A.

1 Kluth G.

1 Kristensen T. N.

1 Loeschcke V.

1 Madsen A. B.

1 Nowak C.

1 Reinhardt I.

1 Stronen A. V.

1 Tokarska M.

1 Wilson G. A.

1 Wincentz T.

1 Wojcik J. M.

1 2015

1 2010

1 2009

Wyniki wyszukiwania

Brown hares on the edge: Genetic population structure of the Danish brown hare

Phylogenetic relationships among the European and American bison and seven cattle breeds reconstructed using the BovineSNP50 Illumina Genotyping BeadChip

Long-distance dispersal of a wolf, Canis lupus, in northwestern Europe