ORBi: Libois Roland - Evidence for a differentiated chromosomal race north of classical south European refuge areas in the garden dormouse Eliomys quercinus

Reference : Evidence for a differentiated chromosomal race north of classical south European refuge ...


	Document type :	Scientific journals : Article
	Discipline(s) :	Life sciences : Zoology
	To cite this reference:	http://hdl.handle.net/2268/128341

Title :	Evidence for a differentiated chromosomal race north of classical south European refuge areas in the garden dormouse Eliomys quercinus
Language :	English
Author, co-author :	Libois, Roland [Université de Liège - ULg > Département de Biologie, Ecologie et Evolution > Zoogéographie >]
	Ramalhinho, Maria da Graça []
	Rosoux, René []
Publication date :	1-Jul-2012
Journal title :	Acta Theriologica
Publisher :	Polish Acad Sciences
Volume :	57
Issue/season :	4
Pages :	313-320
Audience :	International
ISSN :	0001-7051
City :	Bialowieza
Country :	Poland
Keywords :	[en] garden dornouse ; France ; karyotype ; hybridization ; distribution
Abstract :	[en] The dormouse Eliomys quercinus is a forest rodent undergoing long periods of winter hibernation. The species presents a surprisingly large diversity of chromosomal races, which geographic distribution was shown recently to predate the Pleistocene glaciations. Previously reported data on the karyotypes of the garden dormouse in France come from the northeast of the country, where the 2N050 race occurs. New data are presented from specimens trapped near the Atlantic coast (departments of Vendée and Charente-Maritime), in the Pyrenees, the Alps and in the Massif Central. The French Alpine chain, close to the Italian border, is inhabited by the 2N054 race. A karyotype with 2N048 chromosomes, of Iberian type, is found north of the Pyrenees, near the central Atlantic coast and also in the south of the Massif Central, whereas the 2N050 race occurs in the north of the massif. A hybrid between these two races (2N049) was found in Vendée. These facts reveal that neither the Pyrenees nor the Alps constitute a biogeographic barrier to the dormouse and strongly suggest that the present population of northern France derives from a postglacial recolonisation movement initiated in the southernmost regions of France or in the Rhône valley.
Research units :	Departamento de Zoológia e Antropológia, Museu Nacional de Historia (Lisboa)
Funders :	Fundação para a Ciência e a Technologia (Ministerio da Ciência e da Tecnologia) et FNRS
Name of the research project :	project no. POCTI/BSE/36626/99
Target :	Researchers ; Professionals
Permalink :	http://hdl.handle.net/2268/128341
DOI :	10.1007/s13364-012-0085-x

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