Draft Genome Sequence of Pseudomonas syringae Pathovar Syringae Strain FF5, Causal Agent of Stem Tip Dieback Disease on Ornamental Pear

Sohn, Kee Hoon; Jones, Jonathan D. G.; Studholme, David J.

doi:10.1128/jb.00567-12

Cited by 10 publications

(6 citation statements)

References 19 publications

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“…pv. syringae strains such as FF5 which was isolated from Pyrus calleryana [ 56 ]. We also noted different repertoires of effectors between the two species.…”

Section: Discussionmentioning

confidence: 99%

Comparative Genomic Analyses of Multiple Pseudomonas Strains Infecting Corylus avellana Trees Reveal the Occurrence of Two Genetic Clusters with Both Common and Distinctive Virulence and Fitness Traits

Marcelletti

Scortichini

2015

PLoS ONE

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The European hazelnut (Corylus avellana) is threatened in Europe by several pseudomonads which cause symptoms ranging from twig dieback to tree death. A comparison of the draft genomes of nine Pseudomonas strains isolated from symptomatic C. avellana trees was performed to identify common and distinctive genomic traits. The thorough assessment of genetic relationships among the strains revealed two clearly distinct clusters: P. avellanae and P. syringae. The latter including the pathovars avellanae, coryli and syringae. Between these two clusters, no recombination event was found. A genomic island of approximately 20 kb, containing the hrp/hrc type III secretion system gene cluster, was found to be present without any genomic difference in all nine pseudomonads. The type III secretion system effector repertoires were remarkably different in the two groups, with P. avellanae showing a higher number of effectors. Homologue genes of the antimetabolite mangotoxin and ice nucleation activity clusters were found solely in all P. syringae pathovar strains, whereas the siderophore yersiniabactin was only present in P. avellanae. All nine strains have genes coding for pectic enzymes and sucrose metabolism. By contrast, they do not have genes coding for indolacetic acid and anti-insect toxin. Collectively, this study reveals that genomically different Pseudomonas can converge on the same host plant by suppressing the host defence mechanisms with the use of different virulence weapons. The integration into their genomes of a horizontally acquired genomic island could play a fundamental role in their evolution, perhaps giving them the ability to exploit new ecological niches.

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“…pv. syringae strains such as FF5 which was isolated from Pyrus calleryana [ 56 ]. We also noted different repertoires of effectors between the two species.…”

Section: Discussionmentioning

confidence: 99%

Comparative Genomic Analyses of Multiple Pseudomonas Strains Infecting Corylus avellana Trees Reveal the Occurrence of Two Genetic Clusters with Both Common and Distinctive Virulence and Fitness Traits

Marcelletti

Scortichini

2015

PLoS ONE

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“…Sequences used in the phylogenetic comparisons, but not described for the first time in this paper, are publicly available (Baltrus et al ., ; Feil et al ., ; Joardar et al ., ; Sohn et al ., ; D. A. Baltrus et al ., unpublished data). Phylogenetic analyses were performed on concatenated MLSA loci as described previously using concatenated fragments from seven MLSA genes across a diverse array of isolates from P. syringae group I (Baltrus et al ., ).…”

Section: Methodsmentioning

confidence: 99%

Incongruence between multi‐locus sequence analysis (MLSA) and whole‐genome‐based phylogenies: Pseudomonas syringae pathovar pisi as a cautionary tale

Baltrus

Dougherty

Beckstrom-Sternberg

et al. 2014

Molecular Plant Pathology

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Previous phylogenies, built using a subset of genomic loci, split Pseudomonas syringae pv. pisi into two well-supported clades and implied convergence in host range for these lineages. The analysis of phenotypic and genotypic data within the context of this phylogenetic relationship implied further convergence at the level of virulence gene loss and acquisition. We generate draft genome assemblies for two additional P. syringae strains, isolated from diseased pea plants, and demonstrate incongruence between phylogenies created from a subset of the data compared with the whole genomes. Our whole-genome analysis demonstrates that strains classified as pv. pisi actually form a coherent monophyletic clade, so that apparent convergence is actually the product of shared ancestry. We use this example to urge caution when making evolutionary inferences across closely related strains of P. syringae.

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“…The availability of this genome sequence will enable studies on the molecular basis for adaptation to alfalfa, facilitated by the availability of sequences from other P. syringae pv. syringae strains not known to infect this host ( 7 – 12 ) and by the availability of genome sequences from the pathogen responsible for the other major bacterial disease of alfalfa, namely, Xanthomonas alfalfae subsp. alfalfae, which causes bacterial leaf spot ( 13 ).…”

Section: Genome Announcementmentioning

confidence: 99%

Draft Genome Sequence of Pseudomonas syringae pv. syringae ALF3 Isolated from Alfalfa

Harrison

Dornbusch²,

Samac

et al. 2016

Genome Announc

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Draft Genome Sequence of Pseudomonas syringae Pathovar Syringae Strain FF5, Causal Agent of Stem Tip Dieback Disease on Ornamental Pear

Cited by 10 publications

References 19 publications

Comparative Genomic Analyses of Multiple Pseudomonas Strains Infecting Corylus avellana Trees Reveal the Occurrence of Two Genetic Clusters with Both Common and Distinctive Virulence and Fitness Traits

Comparative Genomic Analyses of Multiple Pseudomonas Strains Infecting Corylus avellana Trees Reveal the Occurrence of Two Genetic Clusters with Both Common and Distinctive Virulence and Fitness Traits

Incongruence between multi‐locus sequence analysis (MLSA) and whole‐genome‐based phylogenies: Pseudomonas syringae pathovar pisi as a cautionary tale

Draft Genome Sequence of Pseudomonas syringae pv. syringae ALF3 Isolated from Alfalfa

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