Figure 3.

Histogram of the ratio Vg(i)/Vip(i). (a)The variances Vg(i) and Vip(i) and their ratio were computed for each gene i, in the same manner as that adopted in Figure 2. Histogram of the <a onClick="popup('http://www.biomedcentral.com/1471-2148/11/27/mathml/M10','MathML',630,470);return false;" target="_blank" href="http://www.biomedcentral.com/1471-2148/11/27/mathml/M10">View MathML</a> was computed and sampled for all genes i from 280 to 300 generations. σ = .001 (red +), .02 (green x), .03(blue *), .05(pink ▢), and .08(sky blue *) and .1 (black ○). (b) Temporal evolution of the histogram for the ratio Vg(i)/Vip(i) for σ = 0.1. The histogram was computed over all networks and for every 20 generations. We used the logarithmic scales for both axes, so that the values for abscissa shows <a onClick="popup('http://www.biomedcentral.com/1471-2148/11/27/mathml/M11','MathML',630,470);return false;" target="_blank" href="http://www.biomedcentral.com/1471-2148/11/27/mathml/M11">View MathML</a>: The histograms over generations 1-20, 21-40, 41-60,101-120, 181-200, and 281-300 were plotted with a different color for each network. With evolution, a peak was formed at Vg(i)/Vip(i) = ρ ~ 10-2.3. See Method for the choice of the parameters.

Kaneko BMC Evolutionary Biology 2011 11:27   doi:10.1186/1471-2148-11-27
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