Fig. 2: Heatmap of the viral family diversity in the global wastewater samples.
From: Unveiling the global urban virome through wastewater metagenomics

The heatmap is categorized by continent and host association and ordered by RPM value of the GastroCap sequence data. The colour gradient represents the log-transformed relative abundance of reads normalized to genome length. Viral families marked with an orange dot are RNA viruses; all others are DNA viruses. OCE Oceania, SA South America, Metagenomic shotgun metagenomic dataset, and capture GastroCap sequence dataset.