Fig. 4

Reference-based (RB) relationships between samples by Group or selection line. A: log₁₀ normalized RB profiles coloured by Group. B: Cohort normalized RB profiles coloured by Group. For A and B, the colours were based on diet: sheep fed a grass diet (green), sheep fed a lucerne pellet diet (blue), sheep fed a maintenance pellet diet (purple), and Australian sheep fed a chaffed lucerne and cereal hay diet (orange). C: log₁₀ normalized RB profiles coloured by methane selection line. D: Cohort-normalized RB profiles coloured by methane selection line. For C and D, colours were based on whether the sheep were from the low methane line (green), the high methane line (orange), and from the other flocks (grey). Edges represent the correlation between the samples from the log₁₀ normalized or cohort-adjusted microbial relationship matrix