scholarly journals Pou2, a class V POU-type transcription factor in zebrafish, regulates dorsoventral patterning and convergent extension movement at different blastula stages

2012 ◽  
Vol 129 (9-12) ◽  
pp. 219-235 ◽  
Author(s):  
Alam Khan ◽  
Andrew Nakamoto ◽  
Shun Okamoto ◽  
Miyako Tai ◽  
Yukiko Nakayama ◽  
...  
2008 ◽  
Vol 10 (3) ◽  
pp. 346-352 ◽  
Author(s):  
Maria Vega C. Flores ◽  
Enid Yi Ni Lam ◽  
Kathryn E. Crosier ◽  
Philip S. Crosier

2010 ◽  
Vol 80 ◽  
pp. S56-S57
Author(s):  
A. Nakamoto ◽  
S. Okamoto ◽  
M. Tai ◽  
S. Saito ◽  
D. Isobe ◽  
...  

2012 ◽  
Vol 54 (7) ◽  
pp. 686-701 ◽  
Author(s):  
Alam Khan ◽  
Andrew Nakamoto ◽  
Miyako Tai ◽  
Shinji Saito ◽  
Yukiko Nakayama ◽  
...  

2007 ◽  
Vol 306 (1) ◽  
pp. 360
Author(s):  
Amir M. Ashique ◽  
Mattias Karlen ◽  
Youngshik Choe ◽  
Johan Ericson ◽  
John L. Rubenstein ◽  
...  

Development ◽  
2000 ◽  
Vol 127 (5) ◽  
pp. 1007-1016 ◽  
Author(s):  
C. Maurel-Zaffran ◽  
J.E. Treisman

The dorsoventral midline of the Drosophila eye disc is a source of signals that stimulate growth of the eye disc, define the point at which differentiation initiates, and direct ommatidial rotation in opposite directions in the two halves of the eye disc. This boundary region seems to be established by the genes of the iroquois complex, which are expressed in the dorsal half of the disc and inhibit fringe expression there. Fringe controls the activation of Notch and the expression of its ligands, with the result that Notch is activated only at the fringe expression boundary at the midline. The secreted protein Wingless activates the dorsal expression of the iroquois genes. We show here that pannier, which encodes a GATA family transcription factor expressed at the dorsal margin of the eye disc from embryonic stages on, acts upstream of wingless to control mirror and fringe expression and establish the dorsoventral boundary. Loss of pannier function leads to the formation of an ectopic eye field and the reorganization of ommatidial polarity, and ubiquitous pannier expression can abolish the eye field. Pannier is thus the most upstream element yet described in dorsoventral patterning of the eye disc.


Development ◽  
2002 ◽  
Vol 129 (12) ◽  
pp. 2823-2834 ◽  
Author(s):  
Michael Howell ◽  
Gareth J. Inman ◽  
Caroline S. Hill

In early Xenopus embryos, the prototypical XFast-1/Smad2/Smad4 complex ARF1 is induced at the Mix.2 ARE by activin overexpression. We have characterised ARF2, a related, but much more abundant, complex formed during gastrulation in response to endogenous TGFβ family members and we have identified a novel Fast family member, XFast-3, as its transcription factor component. Endogenous ARF2 efficiently competes out ARF1 at early gastrulation, due to the ability of XFast-3 to interact with activated Smads with much higher affinity than XFast-1. We demonstrate that ARF1 and ARF2 are activated by distinct TGFβ family members. Using morpholino antisense oligonucleotides to deplete levels of the constituent transcription factors XFast-1 and XFast-3 specifically, we demonstrate an important role for ARF1 and ARF2 in early Xenopus embryos in controlling the convergent extension movements of gastrulation.


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