Protein size distributions within soluble secretomes. Number of proteins in five length intervals (≤100 aa, 101-300 aa, 301-500 aa, 501-1000 aa and >1000 aa) as fractions of the total soluble secretomes. Circle areas correspond to the absolute sizes of the soluble secretomes. Species denominators are color-coded by lifestyle: dark blue = saprophytes, dark green = plant pathogens, red = animal pathogens, grey = polyphage (R. oryzae), light blue = Ectomycorrhiza (EcM, L. bicolor), light green = obligate biotroph (P. graminis). Abbreviations for species are given in Table 1.