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Identification moléculaire et histoire phylogéographique et démographique des musaraignes du Maroc septentrional

Abstract : The geographical distribution and ecological preferences of Moroccan shrews are still largely poorly known. Moreover, it is often difficult to identify shrews in the field. We conducted field work on Morocco and captured 62 shrews in 10 localities, from the Tingitane peninsula to Middle Atlas and the region of Ben Guerir (Central Morrocco). We identified all these shrews, through a Barcoding approach based on the Cytb gene, as belonging to the species Crocidura russula. This allowed us to give additional data on the ecological preferences of this species. We studied the demographic and phylogeographic history of this species based on all available Cytb sequences (101 specimens). Our results confirm the recent colonisation of Europe from Africa, through the Gibraltar Strait and human activities. A demographic expansion was recovered in this species. No clear phylogeographic structure was observed within this species, however Moroccan populations are not panmictic. Additional markers and specimens are needed to fully understand the biogeographic history of this species.
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https://hal.archives-ouvertes.fr/hal-02402940
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Submitted on : Tuesday, December 10, 2019 - 4:34:33 PM
Last modification on : Wednesday, September 28, 2022 - 4:20:11 PM

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  • HAL Id : hal-02402940, version 1

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Violaine Nicolas, François Jacquet, Emmanuelle Stoetzel, Aude Lalis, Arnaud Delapre, et al.. Identification moléculaire et histoire phylogéographique et démographique des musaraignes du Maroc septentrional. Travaux de l’Institut Scientifique, Série Générale, 2015, 8, pp.141-150. ⟨hal-02402940⟩

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