[Natural hybridization between 2 sympatric species of mice, Mus musculus domesticus L. and Mus spretus Lataste].
Using protein loci and DNA markers, we show by a multilocus genetic analysis that certain populations of the two sympatric mouse species Mus musculus domesticus and Mus spretus show clear signs of partial introgression. Given the sterility of F1 males and the known partial genetic incompatibilities between the genomes of the two species, our finding does not invalidate the biological species complex, but allows to think that very limited genetic exchanges remain possible even long after the divergence of taxa. This may have some consequences on the dynamics of certain kinds of invasive or advantageous DNAs like transposable elements or pathogen resistance genes.
Orth
Annie
A
Laboratoire génome populations interactions, UMR 5000 CNRS-université Montpellier-II, 34095 Montpellier, France.
Belkhir
Khalid
K
Britton-Davidian
Janice
J
Boursot
Pierre
P
Benazzou
Touria
T
Bonhomme
François
F
D000352:Africa, Northern; D000483:Alleles; D000818:Animals; D000835:Animals, Wild; D004272:DNA, Mitochondrial / Q000235:genetics; D004592:Electrophoresis, Starch Gel; D005060:Europe; D005260:Female; D005819:Genetic Markers; D005838:Genotype; D006824:Hybridization, Genetic; D007248:Infertility, Male / Q000235:genetics; D008297:Male; D051379:Mice; D008877:Middle East; D018598:Minisatellite Repeats; D009115:Muridae / Q000235:genetics / Q000502:physiology*; D012150:Polymorphism, Restriction Fragment Length; D011506:Proteins / Q000032:analysis / Q000235:genetics; D011544:Pseudogenes; D013045:Species Specificity
D004272:DNA, Mitochondrial; D005819:Genetic Markers; D011506:Proteins