Abstract
Distinct populations of Purkinje cells (PCs) with unique molecular and connectivity features are at the core of the modular organization of the cerebellum. Previously, we showed that firing activity of PCs differs between ZebrinII-positive and ZebrinII-negative cerebellar modules (Zhou et al., 2014; Wu et al., 2019). Here, we investigate the timing and extent of PC differentiation during development in mice. We found that several features of PCs, including activity levels, dendritic arborization, axonal shape and climbing fiber input, develop differentially between nodular and anterior PC populations. Although all PCs show a particularly rapid development in the second postnatal week, anterior PCs typically have a prolonged physiological and dendritic maturation. In line herewith, younger mice exhibit attenuated anterior-dependent eyeblink conditioning, but faster nodular-dependent compensatory eye movement adaptation. Our results indicate that specific cerebellar regions have unique developmental timelines which match with their related, specific forms of cerebellum-dependent behaviors.
Original language | English |
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Article number | e63668 |
Journal | eLife |
Volume | 10 |
DOIs | |
Publication status | Published - 11 Jun 2021 |
Bibliographical note
Funding Information:The authors kindly thank Laura Post, Sander Kruithof and Erika Sabel-Goedknegt for excellent technical assistance; Dick Jaarsma and Lynette Lim for discussions and comments on the manuscript. This work was supported by an ERC starter grant (ERC-Stg #680235; MS), Dutch Organization for Life Sciences (Off-Road fellowship; ZonMW-451001027; CO), VENI fellowship (NWO-ENW; JJW), VIDI grant (NWO-ENW; #016.121.346, FEH) and Medical Sciences (TOP-GO #91210067, FEH) and the CJ Vaillant Fund (FEH).
Funding Information:
H2020 European Research Council ERC-Stg #680235 Martijn Schonewille ZonMw ZonMW-451001027 Catarina Os?rio Nederlandse Organisatie voor Wetenschappelijk Onderzoek #016.121.346 Freek E Hoebeek ZonMw #91210067 Freek E Hoebeek Nederlandse Organisatie voor Wetenschappelijk Onderzoek 016.Veni.192.270 Joshua J White.
Publisher Copyright:
© Beekhof et al.