Abstract

Two or more types of Colletotrichum gloeosporioides from citrus have been described on the basis of colony morphology and growth in culture. We report here two distinct genetic populations of the fungus from sweet orange (Citrus sinensis) and Tahiti lime (Citrus aurantifolia); the distinction of the two populations was made on the basis of DNA variation at several genetic loci as well as cultural morphology and growth. Type 1 strains are slow growing, morphologically stable, and contain a single homogeneous form of ribosomal DNA (rDNA) as detected by common HindIII, PstI, SphI, and SstI fragments hybridizing to cloned Neurospora crassa rDNA (...)

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