Linear regression of P. longifolia and S. chilense terminal branch estimates of dN and dS. Slopes for P. longifolia (solid black line) and S. carolinense (dashed line) are 0.77 (S.E. 0.08) and 0.42 (S.E. 0.03) respectively with non-significantly different y-intercepts. Terminal branch estimates of dN and dS were obtained using PAML.
Paape and Kohn BMC Evolutionary Biology 2011 11:243 doi:10.1186/1471-2148-11-243