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Campylobacter volucris

ABSTRACT: Campylobacter volucris isolates from freshwater sources in Victoria, Australia

PROVIDER: PRJNA660282 | ENA |

REPOSITORIES: ENA

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			Action	DRS
		Other
	SRR12549301.fastq.gz	Fastqsanger.gz
	SRR12549302_1.fastq.gz	Fastqsanger.gz
	SRR12549302_2.fastq.gz	Fastqsanger.gz
	SRR12549303_1.fastq.gz	Fastqsanger.gz

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Campylobacter volucris

Project description:Campylobacter volucris overview

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Transcription profiling of freshwater tolerant and strictly marine strains of E. siliculosus under different salinites

Project description:Comparison of freshwater tolerant (accession CCAP 1310/196, origin Hopkins River Falls, Victoria, Australia) and strictly marine strain (accession CCAP 1310/4, origin San Juan de Marcona, Peru) of E. siliculosus under different salinites

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Campylobacter volucris

Project description:Campylobacter volucris Genome sequencing and assembly

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Genomic variations define divergence of water/wildlife-associated Campylobacter jejuni niche specialists from common clonal complexes

Project description:Although the major food-borne pathogen Campylobacter jejuni has been isolated from diverse animal, human and environmental sources, our knowledge of genomic diversity in C. jejuni is based exclusively on human or human food-chain-associated isolates. Studies employing multilocus sequence typing have indicated that some clonal complexes are more commonly associated with particular sources. Using comparative genomic hybridization on a collection of 80 isolates representing diverse sources and clonal complexes, we identified a separate clade comprising a group of water/wildlife isolates of C. jejuni with multilocus sequence types uncharacteristic of human food-chain-associated isolates. By genome sequencing one representative of this diverse group (C. jejuni 1336), and a representative of the bank-vole niche specialist ST-3704 (C. jejuni 414), we identified deletions of genomic regions normally carried by human food-chain-associated C. jejuni. Several of the deleted regions included genes implicated in chicken colonization or in virulence. Novel genomic insertions contributing to the accessory genomes of strains 1336 and 414 were identified. Comparative analysis using PCR assays indicated that novel regions were common but not ubiquitous among the water/wildlife group of isolates, indicating further genomic diversity among this group, whereas all ST-3704 isolates carried the same novel accessory regions. While strain 1336 was able to colonize chicks, strain 414 was not, suggesting that regions specifically absent from the genome of strain 414 may play an important role in this common route of Campylobacter infection of humans. We suggest that the genomic divergence observed constitutes evidence of adaptation leading to niche specialization. Data is also available from <ahref=http://bugs.sgul.ac.uk/E-BUGS-95 target=_blank>BuG@Sbase</a>

2011-04-15 | E-BUGS-95 | biostudies-arrayexpress

Array-based comparative genomics of Campylobacter jejuni sheep abortion isolates (Part 2)

Project description:Campylobacter jejuni has become the predominant cause of sheep abortions in the U.S. However, little is know about the genetic diversity among the isolates collected from different time periods. In this study, the genetic diversity of sheep aborion isolates of C. jejuni was investigated by Array-based CGH

2014-02-11 | GSE54859 | GEO

Array-based comparative genomics of Campylobacter jejuni sheep abortion isolates (Part 1)

Project description:Campylobacter jejuni has become the predominant cause of sheep abortions in the U.S. However, little is know about the genetic diversity among the isolates collected from different time periods. In this study, the genetic diversity of sheep abortion isolates of C. jejuni was investigated by Array-based CGH

2014-02-11 | GSE54858 | GEO

Transcriptomic changes of Campylobacter jejuni subsp. jejuni strain 81116 in water

Project description:Campylobacter jejuni is the leading cause of campylobacteriosis in the developed world. Although most cases are caused by consumption of contaminated meat, a significant proportion is caused by consumption of contaminated water. Some C. jejuni isolates are better than others at surviving in water, which suggests that these strains are better adapted to transmission by water than others. The aim of this study is to investigate this phenomenon further. CFU counts and viability assays showed that strain 81116 survives better than strain 81-176 in a defined freshwater medium at 4°C. Comparative transcriptomic profiling using microarray revealed that these strains respond differently to water. This series presents the transcriptome of strain 81116 in water.

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Transcriptomic changes of Campylobacter jejuni subsp. jejuni strain 81-176 in water

2017-09-01 | GSE94929 | GEO

Campylobacter volucris LMG 24379

Project description:Campylobacter volucris LMG 24379 Genome sequencing project

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Comparison of Campylobacter jejuni isolates implicated in Guillain-Barre syndrome and strains that cause enteritis

Project description:We asked whether Campylobacter jejuni isolated from patients with Guillain-Barri syndrome (GBS) differ from isolates isolated from patients with uncomplicated gastrointestinal infection using DNA microarray analysis. We found that specific GBS genes or regions were not identified, and microarray analysis confirmed significant genomic heterogeneity among the isolates. An all pairs experiment design type is where all labeled extracts are compared to every other labeled extract. Keywords: all_pairs

2006-01-04 | GSE3967 | GEO

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