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See detailGenetic structure of the Turkish hamster (Mesocricetus brandti)
Neumann, K.; Yiğit, N.; Fritzsche, P. et al

in Mammalian Biology (2017), 86

We examined the natural population structure of the Turkish hamster (Mesocricetus brandti) by analysing partial mitochondrial sequences of the control region and the cytochrome b gene. Evolutionary ... [more ▼]

We examined the natural population structure of the Turkish hamster (Mesocricetus brandti) by analysing partial mitochondrial sequences of the control region and the cytochrome b gene. Evolutionary lineages were defined on haplotype clusters in genetic trees and a median-joining network. Most significant divergence events in M. brandti nested in the lower Pleistocene. Gene flow prevented spatial genetic differentiation among most populations contrasting previous ideas about potential subspeciation in Anatolia. None of the mitochondrial lineages showed significant signs of recent expansion indicating relatively stable ecological conditions during recent population history. Furthermore, we discussed aspects of the evolution of M. brandti and the genus Mesocricetus in the context of available fossils. © 2017 Deutsche Gesellschaft für Säugetierkunde [less ▲]

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See detailComparison of diet and prey selectivity of the Pyrenean desman and the Eurasian water shrew using next-generation sequencing methods
Biffi, M.; Laffaille, P.; Jabiol, J. et al

in Mammalian Biology (2017), 87

In this study, the interactions between two semi-aquatic mammals, the endangered Pyrenean desman Galemys pyrenaicus and the Eurasian water shrew Neomys fodiens, were investigated through the analysis of ... [more ▼]

In this study, the interactions between two semi-aquatic mammals, the endangered Pyrenean desman Galemys pyrenaicus and the Eurasian water shrew Neomys fodiens, were investigated through the analysis of their summer diet using next-generation sequencing methods, combined with analyses of prey selectivity and trophic overlap. The diet of these predators was highly diverse including 194 and 205 genera for G. pyrenaicus and N. fodiens respectively. Overall, both species exhibited rather non-selective foraging strategies as the most frequently consumed invertebrates were also the most frequent and abundant in the streams. This supported a generalist foraging behaviour for G. pyrenaicus and N. fodiens in the study area. The Pianka index (0.4) indicated a significant but moderate dietary overlap as G. pyrenaicus mostly relied on prey with aquatic stages whereas prey of N. fodiens were mainly terrestrial. Moreover, no difference in G. pyrenaicus prey consumption was found in presence or absence of N. fodiens. A differential use of trophic resources through mechanisms such as plastic feeding behaviour or differences in foraging micro-habitat are likely to facilitate the coexistence between these two mammal species. © 2017 Deutsche Gesellschaft für Säugetierkunde [less ▲]

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See detailGenome-wide single nucleotide polymorphism (SNP) identification and characterization in a non-model organism, the African buffalo (Syncerus caffer), using next generation sequencing
smitz, nathalie; Van Hooft, pim; Heller, Rasmus et al

in Mammalian Biology (2016), 81

This study aimed to develop a set of SNP markers with high resolution and accuracy within the African buffalo. Such a set can be used, among others, to depict subtle population genetic structure for a ... [more ▼]

This study aimed to develop a set of SNP markers with high resolution and accuracy within the African buffalo. Such a set can be used, among others, to depict subtle population genetic structure for a better understanding of buffalo population dynamics. In total, 18.5 million DNA sequences of 76 bp were generated by next generation sequencing on an Illumina Genome Analyzer II from a reduced representation library using DNA from a panel of 13 African buffalo representative of the four subspecies. We identified 2534 SNPs with high confidence within the panel by aligning the short sequences to the cattle genome (Bos taurus). The average sequencing depth of the complete aligned set of reads was estimated at 5x, and at 13x when only considering the final set of putative SNPs that passed the filtering criterion. Our set of SNPs was validated by PCR amplification and Sanger sequencing of 15 SNPs. Of these 15 SNPs, 14 amplified successfully and 13 were shown to be polymorphic (success rate: 87%). The fidelity of the identified set of SNPs and potential future applications are finally discussed. [less ▲]

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See detailA new method to identify the endangered Pyrenean desman and to study its diet, using next generation sequencing from faeces
Gillet, François; Tiouchichine, Marie laure; Galan, Maxime et al

in Mammalian Biology (2015), 80

The Pyrenean desman (Galemys pyrenaicus) is a small endangered semi-aquatic mammal endemic to the Pyrenean Mountains and to the northern half of the Iberian Peninsula whose ecology and biology are still ... [more ▼]

The Pyrenean desman (Galemys pyrenaicus) is a small endangered semi-aquatic mammal endemic to the Pyrenean Mountains and to the northern half of the Iberian Peninsula whose ecology and biology are still poorly known. The aim of this study was to identify Pyrenean desman faeces and to analyze its diet from this material using next-generation sequencing methods. We amplified and sequenced a small DNA minibarcode (133 bp) of the COI gene in twenty-four putative faeces samples of Pyrenean desman and successfully identified the species in 16 samples. Other identified species were mammals, birds and amphibians, evidencing the potential application of our methods to a larger panel of taxa. In the Pyrenean desman faeces, we were able to identify nineteen prey species with a positive match (more than 98% of identity with a reference sequence) and eleven putative prey species with lower identity scores (90–96%). The nineteen species belonged to four orders and eleven families among which Trichoptera and Hydropsychidae were the most frequent, respectively. Future improvements could be obtained by extending the reference DNA sequence collection to reach precise identifications over the Desman’s range and by increasing the sampling to gain a better knowledge of the local diet of this endangered species. Such information is of great importance to propose the best management measures for its conservation. [less ▲]

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See detailA new method to identify the endangered Pyrenean desman (Galemys pyrenaicus) and to study its diet, using next generation sequencing from faeces
Gillet, François ULiege; Tiouchichine, Marie-Laure; Galan, Maxime et al

in Mammalian Biology (2015)

the Pyrenean Mountains and to the northern half of the Iberian Peninsula whose ecology and biology are still poorly known. The aim of this study was to identify Pyrenean desman faeces and to analyze its ... [more ▼]

the Pyrenean Mountains and to the northern half of the Iberian Peninsula whose ecology and biology are still poorly known. The aim of this study was to identify Pyrenean desman faeces and to analyze its diet from this material using next-generation sequencing methods. We amplified and sequenced a small DNA minibarcode (133 bp) of the COI gene in twenty-four putative faeces samples of Pyrenean desman and successfully identified the species in 16 samples. Other identified species were mammals, birds and amphibians, evidencing the potential application of our methods to a larger panel of taxa. In the Pyrenean desman faeces, we were able to identify nineteen prey species with a positive match (more than 98% of identity with a reference sequence) and eleven putative prey species with lower identity scores (90–96%). The nineteen species belonged to four orders and eleven families among which Trichoptera and Hydropsychidae were the most frequent, respectively. Future improvements could be obtained by extending the reference DNA sequence collection to reach precise identifications over the Desman’s range and by increasing the sampling to gain a better knowledge of the local diet of this endangered species. Such information is of great importance to propose the best management measures for its conservation. [less ▲]

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See detailSeasonal variation in molar outline of bank voles: An effect of wear?
Guérécheau, Aurélie; Ledevin, Ronan; Henttonen, Heikki et al

in Mammalian Biology (2010)

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