Fig. 1

Visual comparison of binned ‘heavy’ control [¹²C]-CH₃Cl and labelled [¹³C]-CH₃Cl incubated metagenomes from degraded leaves, organic soil and mineral soil. Microbial names that are written in grey in the [¹³C]-CH₃Cl‘heavy’ incubation sample are present in ¹²C- and ¹³C-‘heavy’ fractions and are therefore not involved in CH₃Cl degradation. Microbial names that are written in black are enriched in the ¹³C-‘heavy’ fraction compared to the ¹²C-‘heavy’ fraction. Names that are written in bold are microorganisms that are present exclusively in ¹³C-‘heavy’ fractions and therefore most likely involved in the degradation of CH₃Cl and were used for further analysis