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. 1997 May 27;94(11):5722–5727. doi: 10.1073/pnas.94.11.5722

Figure 1.

Figure 1

Eighty percent boot strap concensus trees constructed with the neighbor-joining method using overall numbers of substitutions per site (Ko). Branch lengths are proportional to numbers of substitutions per site. Numbers at nodes indicate bootstrap values based on 500 replicates. X, the most recent common ancestor between nuclear and mitochondrial paralogs; nc: nuclear paralog; ps: pseudogene.