translate English to French: Overall, the two colonies of G. pallidipes were found to have lost, over 3-4 years, most of the genetic and trypanosome-susceptibility characteristics that originally distinguished them.
Dans l'ensemble, les deux colonies de G. pallidipes ont perdu en 3-4 ans la plupart des caractères génétiques et la sensibilité aux trypanosomes qui les distinguaient au départ.