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Patterning Lessons from a Dorsalized Embryo

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Presentation on theme: "Patterning Lessons from a Dorsalized Embryo"— Presentation transcript:

1 Patterning Lessons from a Dorsalized Embryo
Miriam I. Rosenberg, Claude Desplan  Developmental Cell  Volume 14, Issue 4, Pages (April 2008) DOI: /j.devcel Copyright © 2008 Elsevier Inc. Terms and Conditions

2 Figure 1 Model of DV Patterning in Tribolium
(A) A self-organized system biased ventrally (perhaps by a maternal system similar to Drosophila) leads to robust ventral activation of Tc-Dorsal (arrow 1). (B) A second self-organized loop involves Dpp. It is likely biased dorsally by Tc-Sog, which links the two systems (arrow 2). This permits the specification of a range of DV cell fates in emergent posterior segments. (C) After gastrulation, Twist expression in the growth zone leads to ventral patterning of posterior segments (arrow 3). Developmental Cell  , DOI: ( /j.devcel ) Copyright © 2008 Elsevier Inc. Terms and Conditions

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