Fig. 6

Schematic representation of keystone microbial players according to their importance in the different stages of composting. MAGs are represented as roughly circular numbered shapes, and their colors reflect the cluster they were assigned to (Fig. 5 and Supplementary Table 4). Lignocellulose breakdown and relevant active functions are represented across the stages by the various symbols, and the irregular background shapes connect MAGs that express the same functions. The turning procedure was performed on day 63, therefore day 64 is considered a recapitulation of the start of composting (days 1 and 3), based on the patterns of microbial functions and activity that we observed in the present study and in our previous work [1]⁠