Mind the gap! The mitochondrial control region and its power as a phylogenetic marker in echinoids

Table 3 Phylogenetic tree comparisons using the duplication-aware algorithm TreeKO as implemented in the Python Environment for Tree Exploration (ETE)

Source tree	Reference tree	Effective tree size	nRF	RF	maxRF	%src_br	%ref_br	Subtrees number	treekoD
COI	Syst	10.0	0.60	9	15	0.38	0.43	1	0.60
16S	Syst	11.0	0.53	9	17	0.44	0.50	4	0.53
CRA	Syst	18.5	0.61	18.5	31	0.36	0.43	2	0.61

Genetically inferred trees based on: COI, 16S, CRA are compared to current echinoid classification (Syst) (see text for details)
RF Robinson-Foulds symmetric distance, nRF normalized RF distance (RF/maxRF); %src_br – frequency of edges in target tree found in the reference; %ref_br – frequency of edges in the reference tree found in the target; Subtrees – number of subtrees used for the comparison; treekoD – average p distance among all possible subtrees in the original target trees to the reference tree (lower treekoD values are indicative of higher similarity between trees)

ISSN: 2730-7182