Les populations de rats noirs insulaires de l'ouest de l'Europe. Essai préliminaire de caractérisation génétique (caryotype et ADN mitochondrial)

peer reviewed The colonisation of Europe by the black rat (Rattus rattus) dates back only to the Roman times. This rodent is now widespread all over the continent as well as on many islands where it was introduced by man. In some instances, insular populations are morphologically differentiated by t...

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Bibliographic Details
Main Authors: Libois, Roland, Torrico, Jorge, Ramalhinho, Maria Graça, Michaux, Johan, Fons, Roger, Mathias, Maria da Luz
Format: Article in Journal/Newspaper
Language:French
Published: Masson 1996
Subjects:
Black rat
Islands
karyotype
mtDNA
Rattus rattus
Western Europe
Life sciences
Zoology
Sciences du vivant
Zoologie
Online Access:https://orbi.uliege.be/handle/2268/111732
https://orbi.uliege.be/bitstream/2268/111732/1/libois%20et%20al%20rattus%20vie%20milieu.pdf
Description
Summary:peer reviewed The colonisation of Europe by the black rat (Rattus rattus) dates back only to the Roman times. This rodent is now widespread all over the continent as well as on many islands where it was introduced by man. In some instances, insular populations are morphologically differentiated by their greater size. In order to study the possible origin of these insular populations, rats were caught on many Mediterranean (Sicily, Sardinia, Lavezzi, Corsica, Elba, Porquerolles) and Atlantic islands (Ré, Oléron, Azores) and compared to animals from continental Europe (Spain), and Africa (Tunisia, Benin). Their karyotype was determined and their mtDNA restriction patterns studied using the HAE III and RSA I endonucleases and a polyacrylamide gel electrophoresis. These patterns appear very similar to each other though one of them is specific to the African animals, probably indicating that Europe and Africa were colonised by different strains.

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