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ID 46875
file
Thumnail 531.full.pdf 1.74 MB
creator
Miles, Lee B.
Mizoguchi, Takamasa
Verkade, Heather
subject
Endoderm
Planar cell polarity (PCP)
Zebrafish
midline aggregation
Development
NDC
Biology
abstract
The zebrafish endoderm begins to develop at gastrulation stages as a monolayer of cells. The behaviour of the endoderm during gastrulation stages is well understood. However, knowledge of the morphogenic movements of the endoderm during somitogenesis stages, as it forms a mesenchymal rod, is lacking. Here we characterise endodermal development during somitogenesis stages, and describe the morphogenic movements as the endoderm transitions from a monolayer of cells into a mesenchymal endodermal rod. We demonstrate that, unlike the overlying mesoderm, endodermal cells are not polarised during their migration to the midline at early somitogenesis stages. Specifically, we describe the stage at which endodermal cells begin to leave the monolayer, a process we have termed ‘midline aggregation’. The planar cell polarity (PCP) signalling pathway is known to regulate mesodermal and ectodermal cell convergence towards the dorsal midline. However, a role for PCP signalling in endoderm migration to the midline during somitogenesis stages has not been established. In this report, we investigate the role for PCP signalling in multiple phases of endoderm development during somitogenesis stages. Our data exclude involvement of PCP signalling in endodermal cells as they leave the monolayer.
description
The work was supported by a project grant from the National Health and Medical Research Council (491087) to H.V.
journal title
Biology Open
volume
Volume 6
start page
531
end page
539
date of issued
2017-03
publisher
The Company of Biologists Ltd.
issn
2046-6390
publisher doi
language
eng
nii type
Journal Article
HU type
Journal Articles
DCMI type
text
format
application/pdf
text version
publisher
rights
© 2017. Published by The Company of Biologists Ltd., This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution and reproduction in any medium provided that the original work is properly attributed.
relation url
department
Graduate School of Science



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