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Family classification of Laiwu pigs. (a) 150 LWH2 pigs are assigned to ten families in the neighbor‐joining (NJ) phylogenetic tree. (b) 70 LWH3 and LWH4 individuals are classified into three families in the NJ tree. Boars are indicated in black. Definitions of LWH2, LWH3, and LWH4 pigs are given in the legend of Figure 3
