Draft genome sequences of xanthomonas sacchari and two banana-associated xanthomonads reveal insights into the xanthomonas group 1 clade
Studholme, David J.; Wasukira, Arthur; Paszkiewicz, K; et al.Aritua, Valente; Thwaites, Richard; Smith, Julian; Grant, Murray
Date: 2 December 2011
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Journal
Genes
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MDPI
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Abstract
We present draft genome sequences for three strains of Xanthomonas species,
each of which was associated with banana plants (Musa species) but is not closely related
to the previously sequenced banana-pathogen Xanthomonas campestris pathovar musacearum.
Strain NCPPB4393 had been deposited as Xanthomonas campestris pathovar ...
We present draft genome sequences for three strains of Xanthomonas species,
each of which was associated with banana plants (Musa species) but is not closely related
to the previously sequenced banana-pathogen Xanthomonas campestris pathovar musacearum.
Strain NCPPB4393 had been deposited as Xanthomonas campestris pathovar musacearum
but in fact falls within the species Xanthomonas sacchari. Strain NCPPB1132 is more
distantly related to Xanthomonas sacchari whilst strain NCPPB 1131 grouped in a distinct
species-level clade related to X. sacchari, along with strains from ginger, rice, cotton and
sugarcane. These three newly sequenced strains share many genomic features with the
previously sequenced Xanthomonas albilineans, for example possessing an unsual metE
allele and lacking the Hrp type III secretion system. However, they are distinct from
Xanthomonas albilineans in many respects, for example showing little evidence
of genome reduction. They also lack the SPI-1 type III secretion system found in
OPEN ACCESSGenes 2011, 2 1051
Xanthomonas albilineans. Unlike X. albilineans, all three strains possess a gum gene
cluster. The data reported here provide the first genome-wide survey of non-Hrp
Xanthomonas species other than Xanthomonas albilineans, which is an atypical member of
this group. We hope that the availability of complete sequence data for this group of
organisms is the first step towards understanding their interactions with plants and
identifying potential virulence factors.
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