Ancient and diverged TGF-β signaling components in Nasonia vitripennis.

Ancient and diverged TGF-β signaling components in Nasonia vitripennis.
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DOI:
10.1007/s00427-014-0481-0
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发表时间:
2014-12
影响因子:
2.4
通讯作者:
Lynch JA
Lynch JA
中科院分区:
生物学4区
文献类型:
--
作者:
Özüak O;Buchta T;Roth S;Lynch JA

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转化生长因子β(transforming growth factor beta,TGF)-β信号通路及其调节因子参与了后生动物细胞生长和分化的多个方面。尽管该途径的大多数核心组分是高度保守的,但已经观察到许多谱系特异性适应,包括关于paramount数目、调节剂的存在和不存在以及特定过程的功能相关性的变化。在寄生宝石蜂Nasonia vitripennis中,骨形态发生蛋白(BMP)是TGF-β超家族的主要亚群之一,在背腹(DV)图案中发挥着比迄今为止研究的所有其他昆虫更重要的作用。然而,Nasonia缺乏BMP拮抗剂短原肠胚形成(Sog)/腱蛋白,这是必不可少的极化BMP梯度沿着DV轴在大多数双侧动物。在这里,我们提出了一个广泛的调查,TGF-β信号在Nasonia的目的是检测其他谱系特异性的特点,并确定潜在的机制,这解释了BMP依赖的DV模式如何发生在早期Nasonia胚胎在没有Sog。本文的在线版本(doi:10.1007/s 00427 -014-0481-0)包含补充材料,可供授权用户使用。
The transforming growth factor beta (TGF)-β signaling pathway and its modulators are involved in many aspects of cellular growth and differentiation in all metazoa. Although most of the core components of the pathway are highly conserved, many lineage-specific adaptations have been observed including changes regarding paralog number, presence and absence of modulators, and functional relevance for particular processes. In the parasitic jewel wasp Nasonia vitripennis, the bone morphogenetic proteins (BMPs), one of the major subgroups of the TGF-β superfamily, play a more fundamental role in dorsoventral (DV) patterning than in all other insects studied so far. However, Nasonia lacks the BMP antagonist Short gastrulation (Sog)/chordin, which is essential for polarizing the BMP gradient along the DV axis in most bilaterian animals. Here, we present a broad survey of TGF-β signaling in Nasonia with the aim to detect other lineage-specific peculiarities and to identify potential mechanisms, which explain how BMP-dependent DV pattering occurs in the early Nasonia embryo in the absence of Sog. The online version of this article (doi:10.1007/s00427-014-0481-0) contains supplementary material, which is available to authorized users.
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