I have a phylogenetic tree in Newick format. A sample from the full string looks like this: "...(tet_rpg.hmm_GCA_000638155.1_seq1:0.001565531,tet_rpg.hmm_GCA_000507745.1_seq1:0.001565235)0.000:5e-09,...". I understand that distances are given by the number after a colon, but what do numbers immediately following closed parentheses signify? In the sample above, what does "0.000" represent?
This is bootstrap values. The confidence level of clade existence.