[MARMAM] New publication on DNA barcoding of marine mammals

Jean-Luc Jung jung at univ-brest.fr
Wed Jan 8 07:06:59 PST 2014


Dear MARMAM subscribers,


I am pleased to announce the publication of the following open access paper in ZooKeys

Alfonsi E, Méheust E, Fuchs S, Carpentier F-G, Quillivic Y, Viricel A, Hassani S, Jung J-L (2013) The use of DNA barcoding to monitor the marine mammal biodiversity along the French Atlantic coast. In: Nagy ZT, Backeljau T, De Meyer M, Jordaens K (Eds) DNA barcoding: a practical tool for fundamental and applied biodiversity research. ZooKeys 365: 5–24. doi:10.3897/zookeys.365.5873

Abstract

In the last ten years, 14 species of cetaceans and five species of pinnipeds stranded along the Atlantic coast of Brittany in the North West of France. All species included, an average of 150 animals strand each year in this area. Based on reports from the stranding network operating along this coast, the most common stranding events comprise six cetacean species (Delphinus delphis, Tursiops truncatus, Stenella coeruleoalba, Globicephala melas, Grampus griseus, Phocoena phocoena) and one pinniped species (Halichoerus grypus). Rare stranding events include deep-diving or exotic species, such as arctic seals. In this study, our aim was to determine the potential contribution of DNA barcoding to the monitoring of marine mammal biodiversity as performed by the stranding network.

We sequenced more than 500 bp of the 5’ end of the mitochondrial cox1 gene of 89 animals of 15 different species (12 cetaceans, and three pinnipeds). Except for members of the Delphininae, all species were unambiguously discriminated on the basis of their cox1 sequences. We then applied DNA barcoding to identify some “undetermined” samples. With again the exception of the Delphininae, this was successful using the BOLD identification engine. For samples of the Delphininae, we sequenced a portion of the mitochondrial control region (MCR), and using a non-metric multidimentional scaling plot and posterior probability calculations we were able to determine putatively each species. We then showed, in the case of the harbour porpoise, that cox1 polymorphisms, although being lower than MCR ones, could also be used to assess intraspecific variability. All these results show that the use of DNA barcoding in conjunction with a stranding network could clearly increase the accuracy of the monitoring of marine mammal biodiversity.


It can be downloaded at http://www.pensoft.net/journals/zookeys/article/5873/the-use-of-dna-barcoding-to-monitor-the-marine-mammal-biodiversity-along-the-french-atlantic-coast

Best regards

Jean-Luc Jung,
Laboratoire BioGEMME
Université de Bretagne Occidentale
Brest - France






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