Phylogenetic tree of 91 MAGs specifically colonizing in sheep and its association with polysaccharide utilization loci (PULs). The maximum-likelihood tree of the 91 specifically colonizing in sheep genomes constructed using PhyloPhlAn. Circles of different colors represent different bacterial phyla. Predicted PUL1 and PUL2 in the targeted 91 genomes are presented in the outer and inner layers
