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. 2019 Dec 5;10:2796. doi: 10.3389/fmicb.2019.02796

FIGURE 1.

FIGURE 1

Phylogenetic tree based on the retrieved RSVs from the universal approach with the primer pairs 515F-806uR and 519F-785R, archaeal approach with primer pair 519F-806R and from the PCR based on the primer pair combination 344F-1041R/519F-806R as indicated in colors as an outer circle [legend “Primer combinations (PCR)”]. The inner circle represents the body site from where the RSVs were identified (see legend). Reference sequences from the SILVA database are shown without label/circle. The branches of the tree were colored according to the phyla: blue, Woesearchaeota; green, Euryarchaeota; and orange, Thaumarchaeota.