Draft genome sequence of the New Jersey aster yellows strain of 'Candidatus Phytoplasma asteris'

The NJAY (New Jersey aster yellows) strain of 'Candidatus Phytoplasma asteris' is a significant plant pathogen responsible for causing severe lettuce yellows in the U.S. state of New Jersey. A draft genome sequence was prepared for this organism. A total of 177,847 reads were assembled int...

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Veröffentlicht in:PloS one 2018-02, Vol.13 (2), p.e0192379-e0192379
Hauptverfasser: Sparks, Michael E, Bottner-Parker, Kristi D, Gundersen-Rindal, Dawn E, Lee, Ing-Ming
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Sprache:eng
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Zusammenfassung:The NJAY (New Jersey aster yellows) strain of 'Candidatus Phytoplasma asteris' is a significant plant pathogen responsible for causing severe lettuce yellows in the U.S. state of New Jersey. A draft genome sequence was prepared for this organism. A total of 177,847 reads were assembled into 75 contigs > 518 bp with a total base value of 652,092 and an overall [G+C] content of 27.1%. A total of 733 protein coding genes were identified. This Whole Genome Shotgun project has been deposited at DDBJ/ENA/GenBank under the accession MAPF00000000. This draft genome was used for genome- and gene-based comparative phylogenetic analyses with other phytoplasmas, including the closely related 'Ca. Phytoplasma asteris' strain, aster yellows witches'- broom (AY-WB). NJAY and AY-WB exhibit approximately 0.5% dissimilarity at the nucleotide level among their shared genomic segments. Evidence indicated that NJAY harbors four plasmids homologous to those known to encode pathogenicity determinants in AY-WB, as well as a chromosome-encoded mobile unit. Apparent NJAY orthologs to the important AY-WB virulence factors, SAP11 and SAP54, were identified. A number of secreted proteins, both membrane-bound and soluble, were encoded, with many bearing similarity to known AY-WB effector molecules and others representing possible secreted proteins that may be novel to the NJAY lineage.
ISSN:1932-6203
1932-6203
DOI:10.1371/journal.pone.0192379