Fig. 1From: A unified compendium of prokaryotic and viral genomes from over 300 anaerobic digestion microbiomesGeographic and microbial diversity of the expanded Biogas Microbiome database. The expanded anaerobic digestion microbiome database includes 314 samples distributed across 11 countries, with Denmark and China being the origin of most samples. Information about all the samples can be visualized in Additional file 1Back to article page