... ge´ne´tique des animaux,31326 Castanet-Tolosan, France2Institut de l’E´levage, De partement de Ge´ne´tique, 78352 Jouy-en-Josas, France3INRA, UR339 Laboratoire de ge´ne´tique biochimique et cytoge´ne´tique,78352 ... an evolution b etweensamples similar to that of the average coefficients of r elationship. The BCF breed,which already had a reduced genetic variability, showed the highest deteri oration.The ... all alleles.Wright F-statistics FISand FST de ned as heterozygote de ciency withinpopulation and between populations, respectively, were computed usingGENEPOP 4.0 [24].In addition, between-sample...