genetic structure of populations of rhizoctonia solani anastomosis group-1 ia from soybean in brazil.the basidiomycete fungus rhizoctonia solani anastomosis group (ag)-1 ia is a major pathogen of soybean in brazil, where the average yield losses have reached 30 to 60% in some states in northern brazil. no information is currently available concerning levels of genetic diversity and population structure for this pathogen in brazil. a total of 232 isolates of r. solani ag1 ia were collected from five soybean fields in the most important soybean production areas in central-western, northern, and n ...200818943212
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