PT - JOURNAL ARTICLE AU - Xiao, Yan AU - Hoodless, Laura J AU - Petrucco, Luigi AU - Portugues, Ruben AU - Czopka, Tim TI - Oligodendrocyte Precursor Cells Sculpt the Visual System by Regulating Axonal Remodeling AID - 10.1101/2021.03.11.434829 DP - 2021 Jan 01 TA - bioRxiv PG - 2021.03.11.434829 4099 - http://biorxiv.org/content/early/2021/03/12/2021.03.11.434829.short 4100 - http://biorxiv.org/content/early/2021/03/12/2021.03.11.434829.full AB - Many oligodendrocyte precursor cells (OPCs) do not differentiate to form myelin, suggesting additional roles of this cell population. The zebrafish optic tectum contains OPCs in regions devoid of myelin. Elimination of these OPCs impaired precise control of retinal ganglion cell axon arbor size during formation and maturation of retinotectal connectivity, and in consequence impaired visual acuity. Therefore, OPCs fine-tune neural circuit structure and function independently of their canonical role to make myelin.Competing Interest StatementThe authors have declared no competing interest.