Fig. 2.

Schematic diagram demonstrating the oomycete functional proteome derived from fungi by HGT and its putative function regarding host attack. The majority of functions are related to attacking and/or feeding on plant cell tissue. HGTs were represented on the figure when it was possible to identify a putative function (these are illustrated in numbered gray oblongs, with the numbers referring to the 34 HGTs identified; Table 2 and Table S5), with strongly supported HGTs confirmed by alternative topology tests) enclosed within a black line (Figs. S1.1–S1.21). Oblongs with additional red borders represent genes shown to be up-regulated in P. infestans microarray data (22) after 5 d infection of plant tissue (Table S5).