Figure 3.

Population structure for K=3 and K=4 clusters by Structure software for the five populations. Each breed or population is separated by a black vertical line; DU, Duroc; IB, Iberian; SI, Sicilian and LR, Landrace. Each color represents a different cluster. Each column represents a different animal. Within Asia, the order of animals is Licha Black, Fengjing, Meishan, Minzhu and Vietnamese potbelly. In Duroc, the first four animals are from Spain, and the latter two from UK and USA. A full color version of this figure is available at the Heredity Journal online.