| study on dna diversity of iranian populations of erysiphe betae causal agent of sugar beet powdery mildew. | 107 samples of e. betae were collected on infected leaves from all over iranian beet cultivation areas. their choosing were based on geographical and host origin(sugar beet, red beet, fodder beet and wild beet). 30 isolates were single colonized and grown on sugar beet susceptible genotype 7233. 107 specimens were analyzed by restriction fragment length polymorphism (rflp) of the ribosomal internal transcribed spacers (its) and 5.8s dna which previously amplified by the polymerase chain reaction ... | 2005 | 16637196 |