RNA-seq analysis of cry vvd wc-1 triple knockout(△cry,△vvd,△wc-1) strain in the filamentous fungus neurospora crassa
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PROVIDER: PRJNA428734 | ENA |
REPOSITORIES: ENA
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Project description:Analysis of genes differentially expressed in △cry,△vvd,△wc-1 strain under different light intensity
2019-01-05 | GSE108814 | GEO
Project description:Cryptochromes were identified in plants and animals where they function as either photoreceptors or circadian clock components. In the filamentous fungus Neurospora, the biological function of cryptochrome has not yet been explored. Here, we demonstrate that Neurospora crassa cryptochrome (Nc cry) is a DASH-type of cryptochrome, capable of binding FAD and MTHF, whose transcript and protein levels are both strongly induced by blue light in a wc-1 dependent manner. Although the Nc cry transcript is circadian-regulated and antiphasic to frq, knockout strains of Nc cry appears to have a normal clock phenotype. Whole genome microarray and RT-QPCR analysis confirm that Nc cry is not involved in the signal transduction of either early or late light responses and seems to have no transcriptional regulatory activity under our laboratory conditions. Our study concludes that the only cryptochrome in Neurospora crassa is dispensable for the well-characterized blue light sensing cascade and is not part of the circadian clock system. Keywords: light response
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2014-11-18 | PXD000715 | Pride
Project description:Cryptochromes were identified in plants and animals where they function as either photoreceptors or circadian clock components. In the filamentous fungus Neurospora, the biological function of cryptochrome has not yet been explored. Here, we demonstrate that Neurospora crassa cryptochrome (Nc cry) is a DASH-type of cryptochrome, capable of binding FAD and MTHF, whose transcript and protein levels are both strongly induced by blue light in a wc-1 dependent manner. Although the Nc cry transcript is circadian-regulated and antiphasic to frq, knockout strains of Nc cry appears to have a normal clock phenotype. Whole genome microarray and RT-QPCR analysis confirm that Nc cry is not involved in the signal transduction of either early or late light responses and seems to have no transcriptional regulatory activity under our laboratory conditions. Our study concludes that the only cryptochrome in Neurospora crassa is dispensable for the well-characterized blue light sensing cascade and is not part of the circadian clock system. Keywords: light response Two-color microarray. Alexa Fluor 555 was consistently used to label cDNA synthesized from reference RNA, which is a mixture containing equal amounts of RNA samples harvested from different circadian time points and light treatment durations. The same batch of pooled RNA was used as a reference for each array experiment. Alexa Fluor 647 was used exclusively to label cDNA representing sample RNA.
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Project description:Chlamydia psittaci WC strain:WC Genome sequencing
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Project description:Chlamydia psittaci WC strain:WC Genome sequencing
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Project description:Biotin identification (BioID) is a proximity-dependent labeling technique to study protein-protein co-localization in vivo. Although BioID has been applied in animal cells, plants and yeast, the method remained to be established in filamentous fungi. In this study, we established BioID for the filamentous fungus Sordaria macrospora using the well-characterized striatin interacting phosphatase and kinase (STRIPAK) complex as a proof of principle. In detail, the STRIPAK complex interactor 1 (SCI1) was fused to a codon-optimized TurboID biotin ligase. This SCI1-TurboID fusion protein complemented the Δsci1 deletion strain phenotype. The identification of the already known SmSTRIPAK components PRO11, SmMOB3, SmPP2Ac1 and PRO22 in a BioID experiment with SCI1-TurboID demonstrated its successful application in S. macrospora. The technique will provide a powerful proteomics tool for fungal biologists.
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Project description:Light represents an important environmental cue, which exerts considerable influence on the metabolism of fungi. Studies with the biotechnological fungal workhorse Trichoderma reesei (Hypocrea jecorina) have revealed an interconnection between transcriptional regulation of cellulolytic enyzmes and the light response. The filamentous fungus, Neurospora crassa, has been used as a model organism to study light and circadian rhythm biology. We therefore investigated whether light also regulates transcriptional regulation of cellulolytic enzymes in N. crassa. We show that the N. crassa photoreceptor genes wc-1, wc-2 and vvd are involved in regulation of cellulase gene expression, indicating that this phenomenon is conserved among filamentous fungi. Genome wide analysis of photoreceptor mutants and evaluation of results by analysis of mutant strains identified several candidate genes likely to play a role in light modulated cellulase gene expression. Three deletion strains (delta-wc-1 (FGSC 11712), delta-wc-2 (FGSC 11124) and delta-vvd (FGSC 11556)) and the wild type strain (FGSC 2489) at two different timepoints (28h or 40h) were analyzed. Cy3 and Cy5 dye swaps were performed.
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