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Robertsonian translocations in free-living populations of the house mouse in Belgium

Authors
Journal
Biological Journal of the Linnean Society
0024-4066
Publisher
Wiley Blackwell (Blackwell Publishing)
Publication Date
Keywords
  • Mus Musculus Domesticus
  • Chromosomal Polymorphism
  • Hybrid Zone
  • Biogeography

Abstract

Abstract Mice with Robertsonian (Rb) translocations have been discovered in some 45 populations in Europe. In Belgium, we have observed either Rb(4.12) in a heterozygous or homozygous state (2 n = 39 and 38 respectively), or Rb(4.12) homozygous with a heterozygous Rb(5.10), or both fusions in a homozygous state (2 n = 37 and 36, respectively). Some locations are highly polymorphic and heterozygotes are found frequently. These observations suggest that the Rb population in Belgium could be of recent origin and probably is the result of introgression from Alsace (France) or Germany.

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