Figure 1

Probability of being periodic. The blue curve represents the probability of a gene being periodic (Pr) according to the model of [22]. The genes are sorted by probability values (rank) on the horizontal axis to facilitate the visualization. The red curve is the deterministic approximation using a 70% probability cutoff to consider a gene as periodic: ℙ (gene _i is periodic) ≥ 0.70 ⇒ ℙ (gene _i is periodic) = 1 and ℙ (gene _i is periodic) < 0.70 ⇒ ℙ (gene _i is periodic) = 0. This approximation labels 15% of the genes as periodic.