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Table 2 Four-cluster Likelihood-Mapping results among the four major myriapod subgroups. Data set STRICTaa (95,797 alignment sites, 292 gene partitions, merged into 215 meta-partitions). # of drawn quartets: 480. Cluster 1: Chilopoda (Chil), Cluster 2: Diplopoda (Dipl), Cluster 3: Pauropoda (Paur), Cluster 4: Symphyla (Sym). Given are percentages [%] of drawn quartets that map into areas in the 2D-simplex graph (Fig. 3). Quartet topology A (in blue): unambiguous support for Chilopoda+Diplopoda and Pauropoda+Symphyla. Quartet topology B (in red): unambiguous support for Chilopoda+Symphyla and Diplopoda+Pauropoda. Quartet topology C (in grey): unambiguous support for Chilopoda+Pauropoda and Diplopoda+Symphyla. Quartets that map in other outer regions of the simplex graph are partly informative, quartets that map into the centre area are not informative. Question addressed: Is there alterative signal despite the clustering of Pauropoda+Symphyla (i.e. Edafopoda) and Chilopoda+Diplopoda (quartet topology A); can quartet topology A, B or C be explained by confounding signal?

From: Four myriapod relatives – but who are sisters? No end to debates on relationships among the four major myriapod subgroups

data set Topology A a Topology B a Topology C a Topology A-C Topology B-C Topology A-B center area
(Chil,Dipl) – (Paur,Sym) (Chil,Sym) – (Dipl,Paur) (Chil,Paur) – (Dipl,Sym)
original 65%$ 22.9% 10.8% 0.2% 0.0% 1.0% 0.0%
permutation I 15.6% 37.9% 34.4% 2.9% 5.6% 2.5% 1.0%
permutation II 20.4% 27.9% 37.9% 4.4% 5.0% 2.9% 1.5%
permutation III 24.6% 30.8% 30.2% 4.8% 4.6% 3.1% 1.9%
  1. * consistent to topologies A, B and C in Fig. 1. In the IQ-TREE output corresponds Topology A = Voronoi cell 1, Topology B = Voronoi cell 3, Topology C = Voronoi cell 2, Topology A-C = Voronoi cell 4, Topology B-C = Voronoi cell 5, Topology A-B = Voronoi cell 6 and the center area refers to Voronoi cell 7. $ largest proportion of drawn quartets in bold, see Fig. 3