Serine/arginine (SR) proteins are essential pre-mRNA splicing factors in eukaryotic organisms. Our previous studies have shownthat the unique SR-specific protein kinase Srk1 is important for RNA splicing and gene transcription in Fusarium graminearum, and interacts with two SR proteins, FgSrp1 and FgSrp2. In this study, we have identified an SR-like protein called Sgh1 in F. graminearum, which is orthologous to budding yeast paralogous Gbp2 and Hrb1. Our data have shownthat the Sgh1 is involved in vegetative growth, conidiation, sexual reproduction, DON synthesis, and plant infection. Moreover, the Sgh1 is mainly localized to the nucleus. RNA-seq analysis has shownthat the expression of over 1100 genes and the splicing efficiency in over 300 introns were affected in the Δsgh1 mutant. Although the RS domain and all three of the RRM domains are important for the Sgh1 functions, only the RS domain is responsible for its nuclear localization. Finally, we verified that the Sgh1 interacts with the unique SR-specific kinase Srk1 in F. graminearum by the yeast-two hybrid (Y2H) and bimolecular fluorescence complementation (BiFC) assays. Taken together, our results have revealed that the Sgh1 regulates the fungal development, plant infection, and the pre-mRNA processing, and the RS domain regulates the function of the Sgh1 by modulating its nucleocytoplasmic shuttling.
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| Evidence ID | Analyze ID | Gene/Complex | Systematic Name/Complex Accession | Qualifier | Gene Ontology Term ID | Gene Ontology Term | Aspect | Annotation Extension | Evidence | Method | Source | Assigned On | Reference |
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| Evidence ID | Analyze ID | Gene | Gene Systematic Name | Phenotype | Experiment Type | Experiment Type Category | Mutant Information | Strain Background | Chemical | Details | Reference |
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| Evidence ID | Analyze ID | Gene | Gene Systematic Name | Disease Ontology Term | Disease Ontology Term ID | Qualifier | Evidence | Method | Source | Assigned On | Reference |
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| Evidence ID | Analyze ID | Regulator | Regulator Systematic Name | Target | Target Systematic Name | Direction | Regulation of | Happens During | Regulator Type | Direction | Regulation Of | Happens During | Method | Evidence | Strain Background | Reference |
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| Site | Modification | Modifier | Source | Reference |
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| Evidence ID | Analyze ID | Interactor | Interactor Systematic Name | Interactor | Interactor Systematic Name | Allele | Assay | Annotation | Action | Phenotype | SGA score | P-value | Source | Reference | Note |
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| Evidence ID | Analyze ID | Interactor | Interactor Systematic Name | Interactor | Interactor Systematic Name | Assay | Annotation | Action | Modification | Source | Reference | Note |
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| Complement ID | Locus ID | Gene | Species | Gene ID | Strain background | Direction | Details | Source | Reference |
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| Evidence ID | Analyze ID | Dataset | Description | Keywords | Number of Conditions | Reference |
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| Evidence ID | Analyze ID | File | Description |
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