Characterization of seven genes affecting Caenorhabditis elegans hindgut development.

Characterization of seven genes affecting Caenorhabditis elegans hindgut development.
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影响秀丽隐杆线虫后肠发育的七个基因的特征。

DOI:
10.1093/genetics/153.2.731
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发表时间:
1999
期刊:
影响因子:
3.3
通讯作者:
Thomas,JH
Thomas,JH
中科院分区:
生物学2区
文献类型:
--
作者:
Chamberlin,HM;Brown,KB;Sternberg,PW;Thomas,JH

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我们已经确定并表征了影响秀丽隐杆线虫后肠发育的7个基因中的12个突变。我们发现这些突变可以破坏后肠内雄性特异性母细胞的胚后发育,破坏雄性和雌雄同体动物的后肠形态,并且在某些情况下,破坏雌雄同体动物后肠标志物的表达。几个基因的突变也会影响生存能力。根据它们的突变表型,我们认为这些基因可分为四类:(1)egl-5是尾巴区域性特征所必需的;(2)sem-4是多种外胚层和中胚层细胞类型(包括后肠细胞)所必需的;(3)两个基因lin-49和lin-59影响许多细胞(包括后肠细胞)的发育;和(4)三种基因,mAb-9、EGL-38和LIN-48,是后肠内形成模式命运所必需的,使得某些后肠细胞与其它不同。我们还描述了Pax基因egl-38的一个新等位基因,该等位基因对温度敏感,并影响EGL-38配对结构域的保守β-发夹。我们的研究结果表明,不同因素的组合有助于正常C。后肠发育
We have identified and characterized 12 mutations in seven genes that affect the development of the Caenorhabditis elegans hindgut. We find that the mutations can disrupt the postembryonic development of the male-specific blast cells within the hindgut, the hindgut morphology in both males and hermaphrodites, and in some cases, the expression of a hindgut marker in hermaphrodite animals. Mutations in several of the genes also affect viability. On the basis of their mutant phenotypes, we propose that the genes fall into four distinct classes: (1) egl-5 is required for regional identity of the tail; (2) sem-4 is required for a variety of ectodermal and mesodermal cell types, including cells in the hindgut; (3) two genes, lin-49 and lin-59, affect development of many cells, including hindgut; and (4) three genes, mab-9, egl-38, and lin-48, are required for patterning fates within the hindgut, making certain hindgut cells different from others. We also describe a new allele of the Pax gene egl-38 that is temperature sensitive and affects the conserved β-hairpin of the EGL-38 paired domain. Our results suggest that a combination of different factors contribute to normal C. elegans hindgut development.
Pax-Ets 三元复合物的组装需要配对 DNA 结合结构域的高度保守的 β-发夹
DOI: --
发表时间: 1999
影响因子: 5.3
作者:
W. Wheat;D. Fitzsimmons;Heidi Lennox;Susan R. Krautkramer;L. Gentile;L. McIntosh;J. Hagman
通讯作者: J. Hagman
DOI: --
发表时间: 1968
影响因子: --
作者:
Smyth Dh
通讯作者: Smyth Dh
两个同源调控基因 lin-12 和 glp-1 具有重叠的功能。
DOI: 10.1242/dev.112.1.231
发表时间: 1991
期刊: Development (Cambridge, England)
影响因子: --
作者:
Lambie,EJ;Kimble,J
通讯作者: Kimble,J
pha-4 是 Ce-fkh-1,叉头/HNF-3α、β、γ 同源物,在秀丽隐杆线虫咽部的器官发生中发挥作用。
DOI: 10.1242/dev.125.12.2171
发表时间: 1998
期刊: Development (Cambridge, England)
影响因子: --
作者:
Kalb,JM;Lau,KK;Goszczynski,B;Fukushige,T;Moons,D;Okkema,PG;McGhee,JD
通讯作者: McGhee,JD
mab-9 基因控制 B 的命运,B 是秀丽隐杆线虫尾部区域主要的雄性特异性母细胞。
DOI: 10.1101/gad.3.9.1413
发表时间: 1989
影响因子: 10.5
作者:
Andrew D. Chisholm;Jonathan Hodgkin
通讯作者: Jonathan Hodgkin