Fig. 3From: Applicability of several rooted phylogenetic network algorithms for representing the evolutionary history of SARS-CoV-2Reticulation numbers of the networks constructed by the Tree-Child algorithm from the block-based (a) and gene-based (b) input trees, depending on the combination of branch length (l) and bootstrap (s) contraction thresholds. The six taxon selections with (A, B and C) and without bat-SL-CoVZC45 (A-, B- and C-) are indicated by colours. No networks could be constructed for the gene-based trees with taxon selections A and A-Back to article page