Differentiation of Magnaporthe species complex by rep-PCR genomic fingerprinting.

Rice blast disease, caused by the fungus Magnoporthe grisea is responsible for considerable damages on rice and leaf spot on some weeds in Iran and in other parts of the world. Infected samples were collected from rice and weeds including Digitaria sanguinalis (crabgrass), Setaria italica (foxtail millet), Echinochloa crus-galli (barnyard millet), and some unknown weeds during 1997-2005 and were preserved in collection of Mycology at the University of Tehran, Iran. In this study, genetic diversity of Magnaporthe grisea species complex isolates was studied based on DNA fingerprinting by rep-PCR, using of two primers including ERIC and BOX.