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Cited by 385

The DOI matches its Crossref record; 3 of the 3 references it cites were found in a registry or an index.

nodal expression in the primitive endoderm is required for specification of the anterior axis during mouse gastrulation

Varlet, Isabelle, Collignon, Jérôme, Robertson, Elizabeth J.·1997·Development

Abstract

Mouse nodal, a member of the TGFβ family of secreted growth factors is essential for gastrulation. We recently generated a nodallacZ reporter allele by homologous recombination in ES cells. In the present study, β-galactosidase staining in the perigastrulation-stage embryo has demonstrated the site of highest nodal expression is localised to the prospective posterior region of the epiblast marking the site of primitive streak formation. We also documented transient nodal.lacZ expression in the visceral endoderm prior to and during early streak formation. A mosaic analysis using wild-type ES cells to rescuenodal-deficient embryos allowed us to document functionally distinct nodal activities in the embryonic ectodermal and primitive endo- dermal cell lineages. nodal signaling in the ectoderm is necessary for primitive streak formation as the gastrulation defect of nodal-deficient embryos can be rescued by the inclusion of small numbers of wild-type cells. In addition, we show that chimeric embryos composed of nodal- deficient primitive endoderm fail to develop rostral neural structures. Thus we conclude that the action of nodal, a TGF β-related growth factor expressed in the primitive endoderm, is critical for patterning of the anterior aspects of the A-P axis.

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Crossref · 10.1242/dev.124.5.1033

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Metadata

Authors
Varlet, I., Collignon, J., & Robertson, E. J.
Venue
Development
Published
1997-03-01
Volume
124
Issue
5
Pages
1033-1044
ISSN
  • 0950-1991 (ISSN-L)
  • 1477-9129
OpenAlex
W2166697185
Cited by
385
References
3
FWCI
13.84
Type
journal article
Language
en
Open access
closed

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