<p><b>Copyright information:</b></p><p>Taken from "Characterization of probiotic isolates with a novel pan-genome microarray"</p><p>http://genomebiology.com/2007/8/12/R267</p><p>Genome Biology 2007;8(12):R267-R267.</p><p>Published online 18 Dec 2007</p><p>PMCID:PMC2246269.</p><p></p> The plot illustrates the number of novel genome specific genes for the nth genome when comparing = 2,...,32 genomes (for a maximum of 3,200 random combinations at each n). The density colors reflect the count of combinations giving rise to a certain number of specific genes (y-axis) in one genome compared to n - 1 other genomes; that is, for = 2, genome number 2 is compared to genome number 1 and, on average, approximately 650 genes are found to be specific to strain 2. The blue line is the fit to the originally suggested exponential decay function [3]