3.2 ǀ Phylogenetic evolution
Phylogram revealed the dissemblance of Sus scrofa and Equus
cabalus OAS1 from that of ruminants during evolution. Subsequently,
ruminant homologues are divided into two subclades of small (Ovis
aries and Capra hircus ) and large (Bos indicus andtaurus , Bubalus bubalis Bos bison , Bos
mutus ) ruminants. In small ruminants, Ovis aries and Capra
hircus belong to different clusters (FIGURE 2).