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Species-specific mitochondrial DNA markers for identification of non-invasive samples from sympatric carnivores in the Iberian Peninsula

Fernandes, C. A., Ginja, C., Pereira, I., Tenreiro, R., Bruford, Michael William and Santos-Reis, M. 2008. Species-specific mitochondrial DNA markers for identification of non-invasive samples from sympatric carnivores in the Iberian Peninsula. Conservation Genetics 9 (3) , pp. 681-690. 10.1007/s10592-007-9364-5

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Genetic species identification of non-invasively collected samples has become an important tool in ecological research, management and conservation and wildlife forensics. This is especially true for carnivores, due to their elusive nature, and is crucial when several ecologically and phylogenetically close species, with similar faeces, hairs, bones and/or pelts, occur in sympatry. This is the case of the Iberian Peninsula, a region with a carnivore community of 16 species—about two-thirds of the European carnivore fauna. Here we present a simple, efficient and reliable PCR-based protocol, using a novel set of species-specific primers, for the unambiguous identification to species of non-invasively collected samples or forensic materials from Iberian carnivores. For each species, from the consensus of all cytochrome b haplotypes, found here and previously reported, we designed species-specific primer pairs for short fragments, the most likely to persist in low-quantity and degraded DNA samples. The predicted specificity of each primer pair was assessed through PCR of positive DNA extracts from the carnivore species, from an exhaustive array of potential prey and from humans. The robustness of PCR amplification for non-invasively sampled DNA was tested with scat samples. The primers did not produce false positives and correctly identified all carnivore samples to the species level. In comparison with sequencing and PCR-RFLP assays, our method is, respectively, cost- and time-effective, and is especially suited for monitoring surveys targeting multiple populations/species. It also introduces an approach that works for a whole community of carnivores living sympatrically over a large geographic area.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Biosciences
Sustainable Places Research Institute (PLACES)
Uncontrolled Keywords: Non-invasive DNA sampling; Genetic species identification; Sympatric carnivores; Monitoring surveys; Iberian Peninsula
Publisher: Springer
ISSN: 1566-0621
Last Modified: 04 Jun 2017 02:07

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