Maternal nodal and zebrafish embryogenesis.
basic_science · Level V
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Abstract
In fish and amphibians, the dorsal axis is specified by the asymmetric localization of maternally provided components of the Wnt signalling pathway. Gore et al. suggest that the Nodal signal Squint (Sqt) is required as a maternally provided dorsal determinant in zebrafish. Here we test their proposal and show that the maternal activities of sqt and the related Nodal gene cyclops (cyc) are not required for dorsoventral patterning.
Medical subject headings
- Body Patterning
- Intracellular Signaling Peptides and Proteins
- Zebrafish
- Zebrafish Proteins