Gene regulation in two dimensions: the proneural achaete and scute genes are controlled by combinations of axis-patterning genes through a common intergenic control region.

Gene regulation in two dimensions: the proneural achaete and scute genes are controlled by combinations of axis-patterning genes through a common intergenic control region.
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二维基因调控:原神经achaete和盾片基因通过共同的基因间控制区域由轴模式基因的组合控制。

DOI:
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发表时间:
1992
影响因子:
10.5
通讯作者:
Sean B. CarrolP
Sean B. CarrolP
中科院分区:
生物学1区
文献类型:
--
作者:
J. Skeath;G. Panganiban;Jane Selegue;Sean B. CarrolP

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在发展中的领域中,产生离散细胞类型精确模式的机制还没有得到很好的理解。分析细胞如何在二维上解释位置信息的一个模型是昆虫节段内前膜簇形成的调节。两个相邻的前神经调控基因,achaete和sccute,在果蝇胚胎内可复制的前后(AP)和背腹(DV)坐标的细胞簇中同时表达,单个神经母细胞随后产生。在这里,我们发现这些簇的AP和DV位置在成对规则和DV极性基因的产物的初始控制下,通过基因之间的共同顺式作用区域进行调节,随后由选定的片段极性基因维持。AP条纹中原基因的激活/抑制和特定DV结构域的抑制相结合,将每个无毛细胞/鳞片表达细胞簇定位在片段内;这些细胞之间的相互作用决定了单个细胞的命运。
The mechanisms that generate precise patterns of discrete cell types within developing fields are not well understood. One model for analyzing how cells interpret positional information in two dimensions is the regulation of proneural cluster formation within insect segments. Two adjacent proneural regulatory genes, achaete and scute, are expressed coincidently in cell clusters at reproducible anteroposterior (AP) and dorsoventral (DV) coordinates within the Drosophila embryo from which single neuroblasts later arise. Here, we show that the AP and DV position of these clusters is regulated through a common cis-acting region between the genes under the initial control of the products of the pair-rule and DV polarity genes and is later maintained by selected segment polarity genes. The combination of proneural gene activation/repression in AP stripes and repression within specific DV domains positions each cluster of achaete/scute expressing cells within segments; interactions between these cells then determine individual cell fates.
DOI: 10.1101/gad.3.7.997
发表时间: 1989-07
影响因子: 10.5
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S. Romani;S. Campuzano;E. Macagno;J. Modolell
通讯作者: S. Romani;S. Campuzano;E. Macagno;J. Modolell
DOI: --
发表时间: 1991
期刊: Development (Cambridge, England). Supplement
影响因子: --
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期刊: Development (Cambridge, England)
影响因子: --
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