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ABSTRACT: Discovering symbiosis in the supralittoral: bacterial metabarcoding analysis from the hepatopancreas of Orchestia and Tylos (Crustacea)

PROVIDER: PRJNA635562 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR11866737.fastq.gz	Fastqsanger.gz
	SRR11866738.fastq.gz	Fastqsanger.gz
	SRR11866739.fastq.gz	Fastqsanger.gz
	SRR11866740.fastq.gz	Fastqsanger.gz
	SRR11866741.fastq.gz	Fastqsanger.gz

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Project description:symbiotic bacteria from the hepatopancreas of Tylos ponticus (Crustacea, Isopoda).

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Cell cycle transition from S-phase to G1 in Caulobacter is mediated by ancestral virulence regulators

Project description:We report that ancestral zinc-finger-domain transcriptional regulators, previously reported to control virulence/symbiosis, implement a cell cycle (SM-bM-^FM-^RG1) transcriptional switch. To unravel how this G1-phase transcriptional program is reinstated during a primitive cell cycle, we first defined G1-specific promoters in the model bacterium Caulobacter crescentus by comparative ChIP-Seq analysis. We then exploited one such promoter as genetic proxy, to identify two conserved developmental regulator paralogs, MucR1/2, that constitute a quadripartite and homeostatic regulatory module directing the switch from SM-bM-^FM-^RG1-phase transcription. Surprisingly, MucR orthologs that regulate virulence and symbiosis gene transcription in Brucella, Agrobacterium or Sinorhizobium support the G1 transcriptional switch in Caulobacter. Pan-genomic ChIP-Seq analyses in Sinorhizobium and Caulobacter show that this module targets orthologous genes. Thus, this ancestral bacterial lineage from which eukaryotic organelles descended may coordinate virulence/symbiosis with other cell cycle functions using a primordial transcription factor fold that is now primarily found in the eukaryotic domain of life. Examination of 5 transcripton factor binding in two different species

2014-05-25 | E-GEOD-52849 | biostudies-arrayexpress

Cell cycle transition from S-phase to G1 in Caulobacter is mediated by ancestral virulence regulators

Project description:We report that ancestral zinc-finger-domain transcriptional regulators, previously reported to control virulence/symbiosis, implement a cell cycle (S→G1) transcriptional switch. To unravel how this G1-phase transcriptional program is reinstated during a primitive cell cycle, we first defined G1-specific promoters in the model bacterium Caulobacter crescentus by comparative ChIP-Seq analysis. We then exploited one such promoter as genetic proxy, to identify two conserved developmental regulator paralogs, MucR1/2, that constitute a quadripartite and homeostatic regulatory module directing the switch from S→G1-phase transcription. Surprisingly, MucR orthologs that regulate virulence and symbiosis gene transcription in Brucella, Agrobacterium or Sinorhizobium support the G1 transcriptional switch in Caulobacter. Pan-genomic ChIP-Seq analyses in Sinorhizobium and Caulobacter show that this module targets orthologous genes. Thus, this ancestral bacterial lineage from which eukaryotic organelles descended may coordinate virulence/symbiosis with other cell cycle functions using a primordial transcription factor fold that is now primarily found in the eukaryotic domain of life.

2014-05-25 | GSE52849 | GEO

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Project description:The sexually transmitted parasite Trichomonas vaginalis is often found in symbiosis with the obligate intracellular pathogen Mycoplasma hominis. M. hominis is itself an opportunistic pathogen of the female reproductive tract associated with bacterial vaginosis. The goal of this experiment was to identify the effects of each pathogen individually and in symbiosis on host cell gene expression.

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Identification of differentially expressed host microRNAs that respond to Vibrio parahaemolyticus infection in the pacific white shrimp Litopenaeus vannamei.

Project description:In order to gain a better understanding of the impact of Vibrio parahaemolyticus infection on genetic regulation of Litopenaeus vannamei,we performed a miRNA-seq analysis in the hepatopancreas of Litopenaeus vannamei challenged with Vibrio parahaemolyticus, using the Illumina HiSeq 2500 platform.

2020-06-18 | GSE107696 | GEO

Project description:Hepatopancreas transcriptome analysis

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