Additional file 1: Table S1. of Environmental drivers of viral community composition in Antarctic soils identified by viromics

Sample overview. Coordinates of sampling sites and sequencing metadata of viromes. Cleaned reads = reads after removal of contaminants; reads for assembly = reads considered by the assembly and mapping algorithm of CLC Genomics Workbench at the default parameters. Table S2. Taxonomic diversity of the assembled viromes. Diversity was assessed by MetaVir and abundant virus families defined as representing more than 1% of significant hits. All values are given as relative abundances in percent. Values for sample MGM, which needed to be split in two parts for upload to MetaVir, represent both parts (a and b; individual values for the separate parts are shown at the bottom). Sign. hits = significant reference database hits of the predicted genes at a maximum e value of 10−5. Families belonging to the order Caudovirales are marked with an asterisk. Table S3. Environmental parameters measured for all soil samples. ex cat = exchangeable cations, variables designated with an asterisk were used in the RDA. Table S4. Microbial diversity in samples as determined by metagenomic sequencing, as percentage of the total reads assigned. Figure S1. Accumulation plots of the different taxa present in the 14 Antarctic virome read datasets. A) family level, B) genus level, C) species level.