<Emphasis Type="Italic">Pseudomonas syringae </Emphasis>Strains Are Classified into Five Groups by Comparing DMA Homology at the <Emphasis Type="Italic">hrp </Emphasis>Neighboring Regions |
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Authors: | Yasuhiro INOUE Yuichi TAKIKAWA |
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Institution: | (1) Plant Pathology Laboratory, Faculty of Agriculture, Shizuoka University, Ohya, Shizuoka 422–8529, Japan, JP |
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Abstract: | Previously, we classified Pseudomonas syringae strains into at least three groups (I, II and U) by comparing DNA homology at the hrp cluster and its neighboring regions (Inoue and Takikawa 1999). However, heterogeneous strains remained in the undetermined
group (group U). We further classify group U, using pvs. syringae and coronafaciens as references. Comparison of restriction sites for regions of each pathovar revealed distinct differences. By using probes
from the two pathovars, comparisons of DNA homology at the regions separated two additional distinct groups (III and IV) from
group U. Therefore, P. syringae strains are classified into at least five groups.
Received 4 November 1999/ Accepted in revised form 27 January 2000 |
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Keywords: | : Pseudomonas syringae grouping DNA homology of hrp-neighboring regions |
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