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Figure 2 | BMC Evolutionary Biology

Figure 2

From: Conversion events in gene clusters

Figure 2

Condition for detecting a conversion event. Suppose that conversion, outgroup speciation, and duplication events occurred x, y, and z years ago, respectively (x <y <z), and the events formed regions A1 and A2 in primary species A and regions B1 and B2 in the outgroup species B (note that in this type of tree, the nodes represent homologous sequence segments). We observe that the paralogous sequences A1 and A2 are more similar than would be expected without a conversion, i.e. the evolutionary distance between them is less than that between orthologs A1 and B1, though the distance between paralogs B1 and B2 is greater.

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