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Genetic Diversity and Pathogenicity Analysis of Sphaceloma ampelinum Causing Grape Anthracnose in Thailand
Anthracnose is one of the major diseases affecting grape (Vitis vinifera L.) cultivars in Thailand. Isolates of Sphaceloma ampelinum, the anamorph stage of Elsinoe ampelina, were collected from various regions of Thailand. Nineteen single‐conidial isolates were evaluated for differences in conidial...
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Published in: | Journal of phytopathology 2010-12, Vol.158 (11-12), p.837-840 |
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Main Authors: | , , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | Anthracnose is one of the major diseases affecting grape (Vitis vinifera L.) cultivars in Thailand. Isolates of Sphaceloma ampelinum, the anamorph stage of Elsinoe ampelina, were collected from various regions of Thailand. Nineteen single‐conidial isolates were evaluated for differences in conidial morphology, DNA patterns and pathogenicity. These isolates could not be unambiguously distinguished based on conidial morphology; however, they were genetically differentiated using random amplified polymorphic DNA markers. Cluster analysis by the unweighted paired grouped mean arithmetic average classified these isolates into four groups. Pathogenicity analysis using nine grape genotypes and five S. ampelinum isolates showed that ‘Wilcox321’ and ‘Illinois547‐1 were highly resistant to all isolates, suggesting their usefulness as resistant sources in future breeding programmes. |
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ISSN: | 0931-1785 1439-0434 |
DOI: | 10.1111/j.1439-0434.2010.01696.x |