RNA sequencing of the African clawed frog has identified hundreds of putative direct Six1 and Eya1 target genes, including transcriptional regulators of neuronal progenitors and neuronal/sensory differentiation.
Arun Devotta, Hugo Juraver-Geslin ... Jean-Pierre Saint-Jeannet
A combination of morpholino-based knockdowns, pharmacological inhibitors, and rescue assays reveal a novel role for natriuretic peptide signaling in the regulation of cell fates in the embryonic ectoderm.
Dephosphorylation of Notch1 intracellular domain by Eya1 leads to enhanced Notch signalling activity in the non-neuronal epibranchial placodal cells, revealing an essential regulation for the formation of proximal pharyngeal arches during mouse craniofacial development.
Carrie E Leonard, Jolie Quiros ... Lisa A Taneyhill
Trigeminal nerve deficits observed in familial dysautonomia, which arises from mutations in ELP1, are due to loss of neural crest-derived TrkA nociceptors, while placode-derived TrkB and TrkC neurons are spared.
Stunning new scan data of an enigmatic fish from the Early Devonian of Australia, Ligulalepis, is identified as a stem osteichthyan, specifically, as the sister taxon to the 'psarolepids' plus crown osteichthyans.
Sensory neurons in the olfactory system develop from two different regions of the ectoderm, the olfactory placode and the cranial neural crest, whereas sensory neurons within the eye and ear develop from just one region.
Ruth M Williams, Martyna Lukoseviciute ... Marianne E Bronner
A single-cell transcriptomic resource of the early chick epiblast from mid-gastrulation through neurulation highlighting emergence of the neural plate border territory, with emphasis on neural crest specification.
Pénélope Tignard, Karen Pottin ... Marie Anne Breau
Laminin gamma1-dependent basement membranes are required for multiple aspects of olfactory system development in zebrafish, including the maintenance of placode tissue shape and the growth of the olfactory axons.
