Accelerated sequence divergence of secreted proteins between predicted ORFs from the Melampsora unisequence dataset and the Puccinia graminis f. sp. tritici gene models. The set of Melampsora predicted ORFs (2319 non-secreted ORFs, represented by white circles; and 267 secreted ORFs, represented by red circles) was compared with translated gene models of Puccinia graminis f. sp. tritici. Each radius ranges from 0 (center) to 100 (outer circle), representing BLASTP percent identity. A BLASTP hit was considered significant when E-value ≤ 1e-4. Position of ORFs along the circumference is random.