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TRANSCRIPTOMICS OF Metarhizium rileyi YEAST-LIKE PHASES: UNIQUE SIGNATURES ASSOCIATED TO GROWTH METABOLISM, VIRULENCE AND THEIR IMPLICATIONS FOR MORPHOGENESIS

ABSTRACT: TRANSCRIPTOMICS OF Metarhizium rileyi YEAST-LIKE PHASES

PROVIDER: PRJEB51406 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	ERR9118910_1.fastq.gz	Fastqsanger.gz
	ERR9118910_2.fastq.gz	Fastqsanger.gz
	ERR9118911_1.fastq.gz	Fastqsanger.gz
	ERR9118911_2.fastq.gz	Fastqsanger.gz
	ERR9118912_1.fastq.gz	Fastqsanger.gz

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Project description:APSES-type transcription factors (TFs) have analogous and diverse functions in the regulation of fungal morphogenesis processes. However, little is known about these functions in microsclerotium formation. In this study, we characterized two orthologous APSES genes (MrStuA and MrXbp) in the entomopathogenic fungus Metarhizium rileyi Deletion of either MrStuA or MrXbp impaired dimorphic transition, conidiation, fungal virulence, and microsclerotium formation. Compared with the wild-type strain, ΔMrStuA and ΔMrXbp mutants were hypersensitive to thermal and oxidative stress. Furthermore, transcriptome sequencing analysis revealed that MrStuA and MrXbp independently regulate their own distinctive subsets of signaling pathways during dimorphic transition and microsclerotium formation, but they also show an overlapping regulation of genes during these two distinct morphogenesis processes. These results provide a global insight into vital roles of MrStuA and MrXbp in M. rileyi and aid in dissection of the interacting regulatory mechanisms of dimorphism transition and microsclerotium development.IMPORTANCE Transcription factors (TFs) are core components of the signaling pathway and play an important role in transcriptional regulation of gene expression during fungal morphogenesis processes. A prevailing theory suggests an interplay between different TFs regulating microsclerotial differentiation; however, the persisting issue remains that these interplay mechanisms are not clear. Here, we analyzed two members of the APSES-type TFs in Metarhizium rileyi using a gene deletion strategy and transcriptome analysis. Mutants were significantly impaired in microsclerotium formation and dimorphic transition. Transcriptome analysis provided evidence for interacting regulatory mechanisms by the two TFs in microsclerotium formation and dimorphic transition. Furthermore, we investigated their overlapping roles in mediating the expression of genes required for different fungal morphogenesis processes. Characterization of TFs in this study will aid in dissecting the interplay between regulatory mechanisms in fungal morphogenesis processes.

Dataset Information

TRANSCRIPTOMICS OF Metarhizium rileyi YEAST-LIKE PHASES: UNIQUE SIGNATURES ASSOCIATED TO GROWTH METABOLISM, VIRULENCE AND THEIR IMPLICATIONS FOR MORPHOGENESIS

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