FIG. 6.

Amplification of DNA from various Phytophthora species with the P3 primers (at an annealing temperature of 53.5°C) followed by digestion with DraI. Lanes: 1, P. capsici (P. cap) (P139); 2, P. citrophthora (P. cit) (IMI362668); 3, P. colocasiae (P. col) IMI 368918); 4, P. drechsleri (P. dre) (P533); 5, P. fragariae var. fragariae (P. fra) (FVF24); 6, P. nicotianae (P. nic) (Nic1); 7, P. infestans (P. inf) (86.126.1a). Lanes M, contain a 100-bp ladder (Gibco BRL Ltd.). DNA was kindly supplied by David Cooke, SCRI, Dundee, Scotland.