Clonal variability within and among field populations of Sclerotinia sclerotiorum isolated from canola petals in western Canada was determined by analysis of two independent criteria, mycelial compatibility and DNA fingerprinting. Strains were considered to belong to the same clone if they were mycelially compatible and also had identical DNA fingerprints. Thirty-nine clones were identified among 66 strains from seven locations in Alberta, Saskatchewan, and Manitoba. The most widely distributed clone, accounting for 18% of the isolates, was found in all three provinces (...)
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Yatika Kohli (1992) studied this question.