Figure 6. Maximum-likelihood tree for Caudovirales (TerL) : general view (A) and detailed view of the T4-like group (B).

The main reference groups of T4-like phages are indicated (near-T4 in red, T4-like cyanophages in blue), and leaf labels corresponding to virome sequences are colored (blue for Lake Bourget and red for Lake Pavin). The Far-T4 group is highlighted in yellow. The number of reads assembled is given in brackets for each contig. Nodes with at least 80% bootstrap support are flagged with black circles. Rhodothermus RM378, the only cultured representative within the Far-T4 clade, is marked with a black dot.