Front. Cell Dev. Biol. Frontiers in Cell and Developmental Biology Front. Cell Dev. Biol. 2296-634X Frontiers Media S.A. 856519 10.3389/fcell.2022.856519 Cell and Developmental Biology Correction Corrigendum: Postnatal Developmental Expression Profile Classifies the Indusium Griseum as a Distinct Subfield of the Hippocampal Formation Sanders et al. Corrigendum: Indusium Griseum—Distinct Hippocampal Subfield Sanders Marie * Petrasch-Parwez Elisabeth Habbes Hans-Werner Düring Monika v. * Förster Eckart * Department of Neuroanatomy and Molecular Brain Research, Ruhr-University Bochum, Bochum, Germany

Edited and reviewed by: Igor Jakovcevski, Universität Witten/Herdecke, Germany

 *Correspondence: Marie Sanders, marie.sanders@rub.de; Monika v. Düring, monika.duering@rub.de; Eckart Förster, eckart.foerster@rub.de

This article was submitted to Cell Adhesion and Migration, a section of the journal Frontiers in Cell and Developmental Biology

 02 03 2022 2022 10 856519 17 01 2022 18 01 2022 Copyright © 2022 Sanders, Petrasch-Parwez, Habbes, Düring and Förster. 2022 Sanders, Petrasch-Parwez, Habbes, Düring and Förster

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 A Corrigendum on Postnatal Developmental Expression Profile Classifies the Indusium Griseum as a Distinct Subfield of the Hippocampal Formation by Sanders, M., Petrasch-Parwez, E., Habbes, H. W., von Düring, M., Förster, E. (2021). Front Cell Dev Biol. 8:615571. doi:10.3389/fcell.2020.615571 indusium griseum fasciola cinerea dentate gyrus CA2 region Necab2 Prox1 secretagogin PCP4

In the original article, Supplementary Figure S1 was erroneously not included in the publication. In turn, parts of the caption of this figure were mistakenly embedded in the main text during the editing process. The missing Supplementary Figure S1 appears in Supplementary Material.

A correction has been made to Results, Calbindin Expression Decreases During Postnatal IG and FC Development

The original article text appeared as below:

“Beaded axons of calbindin-positive cells projected to the adjacent cortical areas, the corpus callosum, and to the contralateral hemisphere (Commissural fibers of the indusium griseum (IG). Coronal sections of the IG in the mouse brain showing fibers projecting to the contralateral IG. Calbindin immunostaining at p15 (A). Calbindin-immunostaining shows several beaded axons (arrowheads in A) crossing to the contralateral side. Scale bar for (A) = 50 μm). As already detected in the IG, the FC also contained a large number of calbindin-immunopositive neurons at p0 (Figure 2C), which subsequently decreased during postnatal development (Figures 2G,K,O,S).”

The corrected text appears below:

“Beaded axons of calbindin-positive cells projected to the adjacent cortical areas, the corpus callosum, and to the contralateral hemisphere (Supplementary Figure S1A). As already detected in the IG, the FC also contained a large number of calbindin-immunopositive neurons at p0 (Figure 2C), which subsequently decreased during postnatal development (Figures 2G,K,O,S).”

Another correction has been made to Results, Secretagogin Emerges Late During Postnatal IG and FC Development

The original article text appeared as below:

“The majority of secretagogin-positive dendrites were oriented toward the molecular layer; some dendrites traversed to the contralateral IG (Commissural fibers of the indusium griseum (IG). Coronal sections of the IG in the mouse brain showing fibers projecting to the contralateral IG. Secretagogin immunostaining at 6 months of age (B). Secretagogin immunostained dendrites (arrowheads in B) crossing to the contralateral side. Scale bar for (A,B) in (B) = 50 μm). The heterogeneity, laminar distribution, and developmental expression pattern of secretagogin-positive cells in the FC were similar to those of the anterior IG (Figures 3C,G,K).”

The corrected text appears below:

“The majority of secretagogin-positive dendrites were oriented towards the molecular layer; some dendrites traversed to the contralateral IG (Supplementary Figure S1B). The heterogeneity, laminar distribution, and developmental expression pattern of secretagogin-positive cells in the FC were similar to those of the anterior IG (Figures 3C,G,K).”

The authors apologize for these errors and state that this does not change the scientific conclusions of the article in any way. The original article has been updated.

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 Supplementary Material

The Supplementary Material for this article can be found online at: https://www.frontiersin.org/articles/10.3389/fcell.2020.615571/full#supplementary-material

Commissural connections of the indusium griseum (IG). Coronal sections of the IG in the mouse brain showing fibers projecting to the contralateral IG. Calbindin immunostaining at p15 (A) and secretagogin immunostaining at 6 months of age (B). Calbindin immunostaining shows several beaded axons (arrowheads in A) and secretagogin immunostaining shows dendrites (arrowheads in B) crossing to the contralateral hemisphere. Scale bar for (A,B) in (B) = 50 μm.