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Figure 3 | BMC Bioinformatics

Figure 3

From: Evolution of orthologous tandemly arrayed gene clusters

Figure 3

A reconciliation R between the gene tree and the species tree of Figure 1. Ovals are speciation vertices and squares are duplication vertices. The crossed line indicates a gene loss. The genome sets of internal nodes are G(A) = {c, d, e} and G(B) = {a, b}. As for the pre-speciation sets, we have PG(A) = G(B) = {a, b}, PG(1) = G(A) = {c, d, e}, PG(3) = G(B) = {a, b}, but PG(2) = {d, e}, which is different from G(A) due to the loss of gene c.

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