p19 protein
... that the p19 protein evolved in an arms race between plants and viruses?
... that the <b id="mwByk"><a href="./RNA_silencing_suppressor_p19" id="mwByo" rel="mw:WikiLink" title="RNA silencing suppressor p19">p19 protein</a></b> <i id="mwBys">(dimer pictured)</i> evolved in an <a href="./Evolutionary_arms_race" id="mwByw" rel="mw:WikiLink" title="Evolutionary arms race">arms race</a> between plants and viruses?