Polymorphisms for lesion type, fungicide tolerance, and mating capacity in Cochliobolus carbonum isolates pathogenic to corn

@inproceedings{Leonard1978PolymorphismsFL,
  title={Polymorphisms for lesion type, fungicide tolerance, and mating capacity in Cochliobolus carbonum isolates pathogenic to corn},
  author={Keith John Leonard},
  year={1978}
}
Of 189 isolates of Cochliobolus carbonum from the southeastern and midwestern United States, 3 were race 1, 133 were race 2, and 53 were race 3. The rarity of race 1 which produces a host-specific toxin suggests that, in the absence of host plants sensitive to the toxin, stabilizing selection favors genotypes lacking the gene for toxin production. Race 3 which causes long, linear lesions on corn leaves was predominant among isolates from the Mountains of North Carolina and adjacent states, but… CONTINUE READING