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Fig. 4 | Algorithms for Molecular Biology

Fig. 4

From: NANUQ: a method for inferring species networks from gene trees under the coalescent model

Fig. 4

Planar projections of the simplex \(\Delta _2\) showing types of concordance factors for networks \(N^-_c\) of Proposition 9. (L) Gray line segments represent tree-like CFs that arise from quartet networks with no \(3_2\)-cycle and with no 4-cycle. (C) Gray line segments represent CFs that arise from quartet networks with a \(3_2\)-cycle. (R) Gray shaded areas represent CFs that arise from quartet networks containing a 4-cycle. In all three figures, the topology of \(N^-_c\) is marked for the appropriate line segments or regions of CFs

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