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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