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Žarko Ivanović,Tatjana Perović,Tatjana Popović,Jovana Blagojević,Nenad Trkulja,Snježana Hrnčić 한국식물병리학회 2017 Plant Pathology Journal Vol.33 No.1
Citrus blast caused by bacterium Pseudomonas syringaeis a very important disease of citrus occuring inmany areas of the world, but with few data about geneticstructure of the pathogen involved. Consideringthe above fact, this study reports genetic characterizationof 43 P. syringae isolates obtained from planttissue displaying citrus blast symptoms on mandarin(Citrus reticulata) in Montenegro, using multilocus sequenceanalysis of gyrB, rpoD, and gap1 gene sequences. Gene sequences from a collection of 54 referencepathotype strains of P. syringae from the Plant Associatedand Environmental Microbes Database (PAMDB)was used to establish a genetic relationship with ourisolates obtained from mandarin. Phylogenetic analysesof gyrB, rpoD, and gap1 gene sequences showedthat P. syringae pv. syringae causes citrus blast inmandarin in Montenegro, and belongs to genomospecies1. Genetic homogeneity of isolates suggested thatthe Montenegrian population might be clonal whichindicates a possible common source of infection. Thesefindings may assist in further epidemiological studiesof this pathogen and for determining mandarin breedingstrategies for P. syringae control.
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Ivanovic, Zarko,Perovic, Tatjana,Popovic, Tatjana,Blagojevic, Jovana,Trkulja, Nenad,Hrncic, Snjezana The Korean Society of Plant Pathology 2017 Plant Pathology Journal Vol.33 No.1
Citrus blast caused by bacterium Pseudomonas syringae is a very important disease of citrus occuring in many areas of the world, but with few data about genetic structure of the pathogen involved. Considering the above fact, this study reports genetic characterization of 43 P. syringae isolates obtained from plant tissue displaying citrus blast symptoms on mandarin (Citrus reticulata) in Montenegro, using multilocus sequence analysis of gyrB, rpoD, and gap1 gene sequences. Gene sequences from a collection of 54 reference pathotype strains of P. syringae from the Plant Associated and Environmental Microbes Database (PAMDB) was used to establish a genetic relationship with our isolates obtained from mandarin. Phylogenetic analyses of gyrB, rpoD, and gap1 gene sequences showed that P. syringae pv. syringae causes citrus blast in mandarin in Montenegro, and belongs to genomospecies 1. Genetic homogeneity of isolates suggested that the Montenegrian population might be clonal which indicates a possible common source of infection. These findings may assist in further epidemiological studies of this pathogen and for determining mandarin breeding strategies for P. syringae control.
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