Figure S1 - Host Adaptation and Speciation through Hybridization and Polyploidy in Phytophthora

Ploidy variation in P. porri. DNA content measurements on mycelial nuclei of three different P. porri isolates using the internal standard Raphanus sativa cv. Saxa (2C = 1.11 pg). A, logarithmic histogram with ‘diploid’ P. porri (isolate S05014(1)); B, histogram with ‘tetraploid’ P. porri (isolate CBS 127098); C, histogram with heterokaryotic ‘diploid/tetraploid’ P. porri (isolate S05007(2)); Pp1: P. porri G1 peak; Pp2, P. porri G2 peak (panels A and B) or second G1 peak (panel C); Pp3: P. porri G2 peak; Rs1: Raphanus sativa G1 peak; Rs2: Raphanus sativa G2 peak. (PPTX)