Determination of ancestral proportions in synthetic bovine breeds using commonly employed microsatellite markers.

摘要: The International Society of Animal Genetics (ISAG) has chosen nine microsatellites (international marker set) as a standard that should be included in all cattle parentage studies. They are BM1824, BM2113, INRA023, SPS115, TGLA122, TGLA126, TGLA227, ETH10, and ETH225. We decided to ascertain whether this microsatellite set could used determine ancestral proportions individual animals synthetic breeds produced by crossing zebu taurine cattle. Since the genotypes these markers routinely available, would constitute practical cost-free method estimate ancestry breed animals. Genotypes 100 Gir Holstein were examined for ISAG set. As expected, there very sig- nificant allele frequency differences between two at most loci. also typed 20 Girolando which was complete genealogical information. "Structure" software easily distinguished Hol- stein based on their genotypes; it attributed genomic proportion each