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. 2015 Oct 26;4:49. doi: 10.1186/s13742-015-0090-5

Fig. 2.

Fig. 2

Principal component analysis of purebred animals based on sequence-derived genotypes. The genotypes of individuals from the seven purebred populations examined in this study were compared. Three Charolais samples appear in the Hereford cluster and two Hereford animals appear in the Charolais cluster, suggesting potential issues with sample sourcing or sample handling. These five samples are included in the final set of sequenced animals but are flagged as potentially problematic in Additional file 1. Angus (ANG), Charolais (CHA), Gelbvieh (GVH), Hereford (HER), Holstein (HOL), Limousin (LIM) and Simmental (SIM)