Fig. 5

The fungal relative abundance based on the shotgun sequencing of the soil samples collected at different points from the SRS and ORR ecosystems. (a) shows the phylum-level fungal abundance, indicating that Ascomycota was the dominant fungus, followed by Basidomycota, irrespective of the Hg contamination level and the sampling season; (b) shows the genus-level fungal abundance, indicating that Fusarium, Pseudogymnoascus, and Aspergillus were the most abundant genera across the sampling sites, contamination levels, and seasons.