Transient establishment of anteroposterior polarity in the zebrafish pectoral fin bud in the absence of sonic hedgehog activity.

Transient establishment of anteroposterior polarity in the zebrafish pectoral fin bud in the absence of sonic hedgehog activity.
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在没有声刺猬活动的情况下,斑马鱼胸鳍芽前后极性的瞬时建立。

DOI:
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发表时间:
1999
期刊:
影响因子:
4.6
通讯作者:
C. Nüsslein
C. Nüsslein
中科院分区:
生物学2区
文献类型:
--
作者:
C. Neumann;H. Grandel;William Gaffield;S. Schulte;C. Nüsslein

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Sonic hedgehog(Shh)在脊椎动物后肢芽间充质中表达,并在肢体发育期间指导前后图案和生长。在这里,我们报告了一个分析的胸鳍表型的斑马鱼声波你突变体,破坏shh基因。我们表明,嘘是需要建立的某些方面的前后极性,而其他方面的前后极性独立的嘘,只有后来来依赖于嘘为他们的维护。我们还表明,Shh是必需的后HoxD基因的激活视黄酸。最后,我们表明,嘘所需的正常发展的顶端外胚层倍,生长的鳍芽,并形成鳍内骨骼。
Sonic hedgehog (Shh) is expressed in the posterior vertebrate limb bud mesenchyme and directs anteroposterior patterning and growth during limb development. Here we report an analysis of the pectoral fin phenotype of zebrafish sonic you mutants, which disrupt the shh gene. We show that Shh is required for the establishment of some aspects of anteroposterior polarity, while other aspects of anteroposterior polarity are established independently of Shh, and only later come to depend on Shh for their maintenance. We also demonstrate that Shh is required for the activation of posterior HoxD genes by retinoic acid. Finally, we show that Shh is required for normal development of the apical ectodermal fold, for growth of the fin bud, and for formation of the fin endoskeleton.
有证据表明 Shh 与视黄酸诱导辅助因子合作建立 ZPA 样活性。
DOI: 10.1242/dev.122.2.537
发表时间: 1996
期刊: Development (Cambridge, England)
影响因子: --
作者:
Ogura,T;Alvarez,IS;Vogel,A;Rodríguez,C;Evans,RM;IzpisúaBelmonte,JC
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斑马鱼 hox 基因:躯干中的基因组组织和修改的共线表达模式。
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影响因子: --
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