Spatially localized rhomboid is required for establishment of the dorsal-ventral axis in Drosophila oogenesis

Spatially localized rhomboid is required for establishment of the dorsal-ventral axis in Drosophila oogenesis
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果蝇卵子发生过程中背腹轴的建立需要空间定位的菱形

DOI:
10.1016/0092-8674(93)90273-s
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发表时间:
1993
期刊:
影响因子:
64.5
通讯作者:
Y. Jan
Y. Jan
中科院分区:
生物学1区
文献类型:
--
作者:
H. Ruohola;E. Grell;T. Chou;D. Baker;L. Jan;Y. Jan

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果蝇胚胎背腹不对称性的建立需要一组具有母性作用的基因。没有以前确定的背腹轴基因是已知的卵子发生过程中产生不对称本地化的基因产物。我们发现,菱形(rho),这组的一个新成员,编码的蛋白质,是定位于顶面的背前卵泡细胞周围的卵母细胞。rho功能的丧失导致蛋壳和胚胎的腹侧化,而异位表达导致两种结构的背侧化。因此,空间限制rho是必要的和足够的背腹轴的形成。我们建议,基于这些观察和双突变体实验,空间限制的rho蛋白导致选择性激活的表皮生长因子受体在背侧毛囊细胞和随后的规格的背侧毛囊细胞。
The establishment of dorsal-ventral asymmetry of the Drosophila embryo requires a group of genes that act maternally. None of the previously identified dorsaiventral axis genes are known to produce asymmetrically localized gene products during oogenesis. We show that rhomboid (rho), a novel member of this group, encodes a protein that is localized on the apical surface of the dorsal-anterior follicle cells surrounding the oocyte. Loss of rho function causes ventralization of the eggshell and the embryo, whereas ectopic expression leads to dorsalization of both structures. Thus, spatially restricted rho is necessary and sufficient for dorsal-ventral axis formation. We propose, based on these observations and double mutant experiments, that the spatially restricted rho protein leads to selective activation of the epidermal growth factor receptor in the dorsal follicle cells and subsequently the specification of the dorsal follicle cells.
微弱小球 (flb) 表型的解剖:通过外胚层的早期相互作用确定果蝇中枢神经系统的发育。
DOI: 10.1242/dev.114.1.113
发表时间: 1992
期刊: Development (Cambridge, England)
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DOI: 10.1016/0168-9525(90)90089-o
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复活节酶原的激活受到其他五个基因的调节,以定义果蝇胚胎的背腹极性。
DOI: 10.1242/dev.115.2.607
发表时间: 1992
期刊: Development (Cambridge, England)
影响因子: --
作者:
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通讯作者: Anderson,KV