Fungicide resistance RNA-seq on two isolates of Penicillium
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ABSTRACT:
PROVIDER: PRJNA606806 | ENA |
REPOSITORIES: ENA
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Project description:Exposure of a resistance and sensitive isolate of Penicillium to difenoconazole fungicide and acetone as a control for 24 hours.
2020-04-20 | GSE145355 | GEO
Project description:Microarray was used to analyze azole resistance of Candida glabrata oropharyngeal isolates from 7 hematopoietic stem cell transplant recipients receiving fluconazole prophylaxis. Transcriptional profiling of the sequential-paired clinical isolates by microarray revealed 19 genes upregulated in the majority of resistant isolates compared to their paired-susceptible isolates. All seven resistant isolates had greater than two fold upregulation of CgPDR1, a master transcriptional regulator of PDR network, and all 7 resistant isolates showed upregulation of known CgPDR1-target genes. The altered transcriptome can be explained in part by the observation that all 7 resistant isolates had acquired a single nonsynonymous mutation in their CgPDR1 ORF. Four mutations occurred in the regulatory domain (L280P, L344S, G348A, S391L) and one in the activation domain (G943S) while two mutations (N764I, R772I) occurred in an undefined region. Association of azole resistance and the CgPDR1 mutations was investigated in the same genetic background by introducing the CgPDR1 sequences from one sensitive and five resistant isolates into a laboratory azole-sensitive strain (cgpdr1) via integrative transformation. The cgpdr1 strain was restored to wild-type fluconazole susceptibility when transformed with CgPDR1 from the susceptible isolate but became resistant when transformed with CgPDR1 from the resistant isolates. However, despite the identical genetic background, upregulation of CgPDR1 and CgPDR1-target genes varied between the 5 transformants, independent of the domain locations in which the mutations occurred. In sum, gain-of-function mutations in CgPDR1 not only contributed to the clinical azole resistance but different mutations had varying degrees of impact on the CgPDR1-target genes.
2010-07-07 | GSE21352 | GEO
Project description:Microarray was used to analyze azole resistance of Candida glabrata oropharyngeal isolates from 7 hematopoietic stem cell transplant recipients receiving fluconazole prophylaxis. Transcriptional profiling of the sequential-paired clinical isolates by microarray revealed 19 genes upregulated in the majority of resistant isolates compared to their paired-susceptible isolates. All seven resistant isolates had greater than two fold upregulation of CgPDR1, a master transcriptional regulator of PDR network, and all 7 resistant isolates showed upregulation of known CgPDR1-target genes. The altered transcriptome can be explained in part by the observation that all 7 resistant isolates had acquired a single nonsynonymous mutation in their CgPDR1 ORF. Four mutations occurred in the regulatory domain (L280P, L344S, G348A, S391L) and one in the activation domain (G943S) while two mutations (N764I, R772I) occurred in an undefined region. Association of azole resistance and the CgPDR1 mutations was investigated in the same genetic background by introducing the CgPDR1 sequences from one sensitive and five resistant isolates into a laboratory azole-sensitive strain (cgpdr1) via integrative transformation. The cgpdr1 strain was restored to wild-type fluconazole susceptibility when transformed with CgPDR1 from the susceptible isolate but became resistant when transformed with CgPDR1 from the resistant isolates. However, despite the identical genetic background, upregulation of CgPDR1 and CgPDR1-target genes varied between the 5 transformants, independent of the domain locations in which the mutations occurred. In sum, gain-of-function mutations in CgPDR1 not only contributed to the clinical azole resistance but different mutations had varying degrees of impact on the CgPDR1-target genes. Seven pairs of oropharyngeal sequential isolates were chosen for study because each pair came from an individual hematopoietic stem cell transplant recipient receiving fluconazole. Seven groups consisted of 5 biological replicates in which a sensitive sample was paired with a resistant sample. Each group included 1 to 2 reciprocally labeled samples.
2010-07-07 | E-GEOD-21352 | biostudies-arrayexpress
Project description: Not available
| S-EPMC5882929 | biostudies-literature
Project description:Purpose: The goal of this study is to compare differences between Penicillium roqueforti conidia from various conditions shown to affect heat-resistance to identify genes possibly related to heat-resistance using RNA-seq. Methods: mRNA from Penicillium roqueforti conidia produced at different temperatures (15C, 25C or 30C) and different cultivation times (3, 5, 7 or 10 days) was extracted, in triplicate, and sequenced with Illumina NextSeq500. The sequence reads that passed quality filters were analyzed using Hisat2 followed by Cufflinks. Results: we mapped about 19 million sequence reads per sample to the Penicillium roqueforti genome (build LCP96 04111) and identified 9723 transcripts in the conidia. Data analysis revealed a subset of 33 genes showing increased expression in culture conditions that increase heat-resistance. Conclusions: Our study generated insight into multiple genes that are likely involved in the heat-resistance of Penicillium roqueforti.
2020-04-24 | GSE149235 | GEO
Project description:Penicillium digitatum is the pathogen of Green mold in Postharvest citrus. After inoculating Penicillium digitatum into the wound of citrus to infect it, transcriptome sequencing was carried out and compared with the results of transcriptome sequencing of Penicillium digitatum before inoculation in order to screen the differentially expressed genes and reveal its infection mechanism.
2019-03-29 | GSE128979 | GEO
Project description:Comparative analysis of transcriptome of Penicillium marneffei PM1 grown at 25°C and 37°C Penicillium marneffei strain PM1 was pre-cultured at 25°C and 37°C for two weeks on Sabouraud's Dextrose Agar (SDA). Messenger RNAs were then isolated from one-week 25°C and 37°C cultures and sequenced with Illumina by BGI America. Two replicates.
2013-07-20 | E-GEOD-48898 | biostudies-arrayexpress
Project description:Chlorothalonil (2,4,5,6-tetrachloroisophthalonitrile) is a broad spectrum fungicide used extensively in agricultural crops . The aim of this study is to analyse the effects of Chorothalonil on the gene expression profiles in zebrafish (Danio rerio), exposed to two concentrations of the fungicide in the water. Nominal concentrations were 1) Low 0.007mg/l (environmentally relevent) and 2) High 0.035mg/ml . A commercial third generation microarray for Danio rerio (Agielnt V3, 4x44k) was used to identify patterns of gene expression in male livers during a 96h toxicological assay.
2015-06-17 | GSE67600 | GEO
Project description:Penicillium expansum Fludioxonil resistant isolates
| PRJNA627839 | ENA
Project description:Chlorothalonil (2,4,5,6-tetrachloroisophthalonitrile) is a broad spectrum fungicide used extensively in agricultural crops . The aim of this study is to analyse the effects of Chorothalonil on the gene expression profiles in zebrafish (Danio rerio), exposed to two concentrations of the fungicide in the water. Nominal concentrations were 1) Low 0.007mg/l (environmentally relevent) and 2) High 0.035mg/ml . A commercial third generation microarray for Danio rerio (Agielnt V3, 4x44k) was used to identify patterns of gene expression in male livers during a 96h toxicological assay. Replicates: Six control, five low and four high concentrations ; 15 samples examined. Expression profiles of male livers compared. Two concentrations of the fungicide chlorothalonil were compared.
2015-06-17 | E-GEOD-67600 | biostudies-arrayexpress