Molecular and genetic analysis of the hairy locus in Drosophila.
Molecular and genetic analysis of the hairy locus in Drosophila.
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果蝇毛状位点的分子和遗传分析。
DOI：
10.1101/sqb.1985.050.01.019
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发表时间：
1985
期刊：
影响因子：
--
通讯作者：
P. Ingham
中科院分区：
文献类型：
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作者：
D. Ish;K. Howard;S. Pinchin;P. Ingham
昆虫身体模式的一个普遍特征是它的节段性(同源异构体)组织(参见Lawrence 1981)。果蝇胚胎有三个胸段(T1-T3)和八个腹段(A1-A8)，虽然同源，但显示出不同的节段特定的角质层图案(图3)。洛杉矶)。这种同源异构体组织延伸到幼虫头部，幼虫头部由五到六个节段单位组成，尽管极端的形态差异掩盖了它们的节段性质。片段特征的多样性由一组选择器(同源异型)基因控制，这些基因在时代的不同区域被激活-
A universal feature of the insect body pattern is its segmental (metameric) organization (for review, see Lawrence 1981). The Drosophila embryo has three thoracic (T1-T3) segments and eight abdominal (A1-A8) segments that, although homologous, show distinct segment-specific cuticular patterns (Fig. la). This metameric organization extends into the larval head, which is composed of five or six segmental units, although extreme morphological differences obscure their segmental nature. The diversity of the segment characters is controlled by sets of selector (homeotic) genes that are activated in different regions of the era-