Figure 3.

Mean to variance correlation. (A) The noise strength (Fano factor) ν of simulated Bicoid molecular number gradient is defined as molecular variance <a onClick="popup('http://www.biomedcentral.com/1752-0509/1/52/mathml/M44','MathML',630,470);return false;" target="_blank" href="http://www.biomedcentral.com/1752-0509/1/52/mathml/M44">View MathML</a> divided by molecular mean <a onClick="popup('http://www.biomedcentral.com/1752-0509/1/52/mathml/M13','MathML',630,470);return false;" target="_blank" href="http://www.biomedcentral.com/1752-0509/1/52/mathml/M13">View MathML</a>. The key indicates that parameters were obtained from (1) the high-variance ensemble of 89 embryos, (2) the low-variance ensemble of 17 embryos, and (3) the extreme condition of high diffusion rate D = 7890 (μm2/s), decay rate ω = 1.0 (s-1) and synthesis rate J = 70000 (molecules/s). (B) As shown in the key, noise strength of simulated fluorescence intensity <a onClick="popup('http://www.biomedcentral.com/1752-0509/1/52/mathml/M45','MathML',630,470);return false;" target="_blank" href="http://www.biomedcentral.com/1752-0509/1/52/mathml/M45">View MathML</a> and rescaled gradient <a onClick="popup('http://www.biomedcentral.com/1752-0509/1/52/mathml/M43','MathML',630,470);return false;" target="_blank" href="http://www.biomedcentral.com/1752-0509/1/52/mathml/M43">View MathML</a> were obtained using parameters from (1) the high-variance ensemble of 89 embryos and (2) the low-variance ensemble of 17 embryos.

Wu et al. BMC Systems Biology 2007 1:52   doi:10.1186/1752-0509-1-52
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