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| Publication Type:
| Refereed |
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| Author(s): | Raffle, V. L.;
Hsiang, T. |
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| Author Affiliation: | Department of Environmental Biology, University of Guelph, Guelph, Ontario, Canada |
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| Title: | Low level of DNA polymorphisms in isolates of Leptosphaeria korrae pathogenic on Poa pratensis |
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| Section: | Molecular and physiological pathology
Other records with the "Molecular and physiological pathology" Section
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| Source: | Canadian Journal of Plant Pathology. Vol. 20, No. 1, March 1998, p. 48-54. |
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| Publishing Information: | Canadian Phytopathological Society |
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| # of Pages: | 7 |
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| Keywords: | TIC Keywords: Random amplified polymorphic DNA markers; Ophiosphaerella korrae; Poa pratensis; Genetic diversity
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| Abstract/Contents: | "The genetic diversity of the turfgrass pathogen Leptosphaeria korrae was examined with random amplified polymorphic DNA (RAPD) markers at the sibling, population, regional, and cross-continental levels using 71 isolates. The seven RAPD primers tested showed polymorphisms within and between regions in North America. No polymorphisms were observed between sibling spores nor between twenty-one isolates from a single field. Based on differences observed with 48 polymorphic RAPD markers, only six unique but closely related haplotypes were identified among 33 geographically seperated field isolates from British Colombia, Ontario, ané Quebec in Canada, and Washington state in the USA. Although there was a clustering of isolates of the same haplotype, some haplotypes had wide distributions across different regions. We hypothesize that few haplotypes of L. korrea were introduced into these regions from the centre of origin." |
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| Language: | English |
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| References: | 47 |
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| Note: | Abstract also appears in French
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Raffle, V. L., T. Hsiang, and T. Hsiang. 1998. Low level of DNA polymorphisms in isolates of Leptosphaeria korrae pathogenic on Poa pratensis. Can. J. Plant Pathol. 20(1):p. 48-54. |
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