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Fig. 3 | BMC Bioinformatics

Fig. 3

From: On the consistency of orthology relationships

Fig. 3

Example of (a) a species tree where the placement of C is uncertain, and b) another species tree that can be derived from the first by changing the position of C. The DS-tree in (c) is not consistent with the species tree in (a)(assuming s(a 1) = s(a 2) = A,s(b 1) = s(b 2) = B,s(c 1) = s(c 2)=C,s(d 1)=s(d 2)=D), but it is consistent with the species tree in (b). In (c), circles represent speciation events, and squares represent duplication events

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