... for the acquisition of ectoderm potency in the epiblast. References Arkell , R. M. and Tam , P. P. L. ( 2012 ). Initiating head development in mouse embryos: integrating signalling and transcriptional activity . Open Biol.   2 , 120030 . 10.1098/rsob.120030 Beccari , L. , Moris , N...

... embryos display head truncation and trunk malformation, which are not found in either Dkk1 +/- or Wnt3 +/- embryos. Reducing the dose of Wnt3 gene in Dkk1 -/- embryos partially rescues the truncated head phenotype. These findings highlight that head development is sensitive to the level of WNT3 signalling...

... development in eye-antennal discs. *Author for correspondence (e-mail: [email protected] ) 15 11 2001 © 2002. 2002 Headless flies Pax6 genes twin of eyeless eyeless Head development Eye development Drosophila melanogaster Pax genes, discovered by a test...

... and the inhibition of their expression and head development by a dominant interference mutant of Xrel3 indicates that Rel/NF-κB is required for activation of these genes and for anterior neural patterning in Xenopus . * These authors contributed equally to this work ‡ Author for correspondence (e...

... of Biologists 1999 Pattern formation Gene regulation Embryogenesis Drosophila melanogaster ARID family Head development The development of multicellular organisms requires a series of switches in the activity of key regulatory genes to be tightly controlled in a spatial and temporal...

... Auburn Avenue, Cincinnati, OH 45219, USA 30 03 1999 19 05 1999 © 1999 by Company of Biologists 1999 hedgehog vein Epidermal growth factor receptor Drosophila Head development Communication among cells within a developmental field is mediated through signal...

... direct Bcd regulation. * Author for correspondence (e-mail: [email protected] ) 26 08 1998 © 1998 by Company of Biologists 1998 orthodenticle bicoid Drosophila melanogaster head development pattern formation The molecular hierarchy that subdivides...

...) is discussed. * Corresponding author (e-mail: [email protected] ) 01 04 1998 19 02 1998 © 1998 by Company of Biologists 1998 Paired -like homeobox gene Head development Regeneration Budding Hydra Cnidaria Evolution Hydra is a freshwater cnidarian...

... in the ventral gnathal region. * Author for correspondence (email: [email protected] ) 26 26 1997 © 1997 by Company of Biologists 1997 apontic Deformed homeotic genes Drosophila head development The anterior-posterior axis of insects is composed of a linear array...

... for the formation of specific head segments, its ectopic expression does not disturb head development. We conclude that the spatial limits of btd expression are not instructive for metamerization of the head region and that btd activity does not contribute to a combinatorial code for specification of segment...

... homeobox gene. We also show that orthodenticle is a candidate hedgehog target gene during early eye-antennal disc development. 11 03 1996 © 1996 by Company of Biologists 1996 hedgehog wingless orthodenticle Drosophila imaginal discs head development Analysis...

... requires the informational input of three of the four maternal coordinate systems. Head-specific gene expression is set up in response to a complex interaction between the maternally provided gene products and zygotically expressed genes. Several zygotic genes involved in head development have recently...

... neuroectoderm. * Corresponding author 18 09 1992 © 1993 by Company of Biologists 1993 neural crest rhombomere homeobox protein hindbrain head segmentation mechanisms head development chick embryo tissue transplantation quail-chick chimera The developing vertebrate...

... effort to understand the role of lab in development, we have begun a dissection of the regulatory elements of the lab transcription unit and used germ line transformation experiments to determine which aspects of the observed expression pattern are essential for proper head development and viability...

...Robert Finkelstein; Norbert Perrimon © 1991 by Company of Biologists 1991 head development Drosophila segmentation ‘It would be too bad if the question of head segmentation ever should be finally settled; it has been for so long such fertile ground for theorizing...

..., Hox 2 6, related to the Drosophila Deformed gene . Genes Dev 2 , 1424 – 1438 10.1101/gad.2.11.1424 Hall , B ( 1987 ) Tissue Interactions in Head Development and Evolution In Developmental and Evolutionary Aspects of the Neural Crest (ed P F A Maderson ), pp 215...

... genes are not expressed there. Copyright © 1991 by Company of Biologists 1991 homeobox gene Hox 2 cranial neural crest branchial arches head development hindbrain neural plate vertebrate evolution Homeobox genes, a group of sequence-specific DNA-binding proteins, have been...