Expression of RNA-binding protein Rbfox1l demarcates a restricted population of dorsal telencephalic neurons within the adult zebrafish brain |
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| Institution: | 1. Bio-Medical Center, College of Life Science & Technology, Huazhong Agricultural University, Wuhan, 430070, Hubei, China;2. Department of Molecular Genetics, The Ohio State University, Columbus, OH, 43210, USA;3. Department of Biological Chemistry and Pharmacology, The Ohio State University, Columbus, OH, 43210, USA;4. Center for Muscle Health and Neuromuscular Disorders, The Ohio State University, Nationwide Children''s Hospital, Columbus, OH, 43210, USA |
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| Abstract: | Rbfox RNA-binding proteins are expressed in the adult mammalian brain and are required for proper brain development and function. Studies in mice and humans have implicated Rbfox1/RBFOX1 in autism, neuronal excitation and epilepsy, and Rbfox2/RBFOX2 in cerebellar development. The zebrafish has emerged as a prominent model system for brain study, possessing neuroanatomical conservation with mammals and an extensive capacity for adult neurogenesis and plasticity. In this study, we characterize Rbfox1l and Rbfox2 expression in the adult zebrafish brain. While Rbfox2 is expressed broadly, Rbfox1l is expressed in restricted populations of neurons in the dorsal telencephalon and cerebellum. In the dorsal telencephalon, Rbfox1l is expressed in a specific population of neurons spanning Dm and Dc regions. In the cerebellum, Rbfox1l and Rbfox2 are expressed in the Purkinje cell layer, reminiscent of Rbfox1 and Rbfox2 expression in the mammalian cerebellum. Our findings motivate future studies of Rbfox function in the zebrafish brain. |
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| Keywords: | Rbfox RNA-binding proteins Rbfox2 Dorsal telencephalon Dm region Dc region Adult zebrafish brain |
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