Young proteins experience more variable selection pressures than old proteins

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Figure 2.
Figure 2.

The five-species phylogeny for each of the taxa analyzed in our study (yeast, mammals, Drosophila). For each ortholog we estimated branch-specific dN/dS values along two subsequent branches (ω1, ω2), as well as separate values for most terminal branches (ω3), the outgroup branch (ω0), and additional internal branches in Drosophila (ω4). We quantified the temporal variability in dN/dS as the absolute difference ν = |ω1 – ω2|.

This Article

  1. Published in Advance October 4, 2010, doi: 10.1101/gr.109595.110 Genome Res. 20: 1574-1581

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