Germ plasm in Caenorhabditis elegans, Drosophila and Xenopus

Germ plasm in Caenorhabditis elegans, Drosophila and Xenopus
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秀丽隐杆线虫、果蝇和非洲爪蟾的种质

DOI:
10.1046/j.1440-169x.1998.t01-4-00001.x
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发表时间:
1998
期刊:
影响因子:
4.6
通讯作者:
K. Ikenishi
K. Ikenishi
中科院分区:
生物学2区
文献类型:
--
作者:
K. Ikenishi

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特殊的细胞质,称为生殖质,是生殖细胞分化所必需的,位于秀丽隐杆线虫、果蝇和爪蟾卵的特定区域。比较了这些生物体生殖系创始细胞形成的方式、生殖系颗粒的起源和行为以及生殖系细胞中定位的分子。生物的共同特征主要有以下几点。首先,在原肠胚形成开始之前建立胚系的创始细胞。第二,生殖细胞颗粒或其衍生物在胚胎、幼虫和成虫的整个生命周期中始终存在于生殖细胞或生殖细胞中。最后,在位于生殖质中的蛋白质中,仅Vasa蛋白或其同系物在生殖系细胞或整个生命周期的生殖细胞中检测到。由于vasa同源物的蛋白质也被报道定位于一些没有种质的生物体的生殖系特异性结构或nuage中,因此讨论了原始生殖细胞分化机制在所有有或没有种质的生物体中基本上是共同的可能性。
Special cytoplasm, called germ plasm, that is essential for the differentiation of germ cells is localized in a particular region of Caenorhabditis elegans, Drosophila and Xenopus eggs. The mode of founder cell formation of germline, the origin and behavior of the germline granules, and the molecules localized in germline cells are compared in these organisms. The common characteristics of the organisms are mainly as follows. First, the founder cells of germline are established before the intiation of gastrulation. Second, the germline granules or their derivatives are always present in germline cells or germ cells throughout the life cycle in embryos, larvae, and adults. Lastly, among the proteins localized in the germ plasm, only Vasa protein or its homolog is detected in the germline cells or germ cells throughout the life cycle. As the protein of vasa homolog has been reported to be also localized in the germline‐specific structure or nuage in some of the organisms without the germ plasm, the possibility that the mechanism for differentiation of primordial germ cells is basically common in all organisms with or without the germ plasm is discussed.
早期的秀丽隐杆线虫胚胎具有转录活性。
DOI: 10.1242/dev.110.4.1303
发表时间: 1990
期刊: Development (Cambridge, England)
影响因子: --
作者:
Schauer,IE;Wood,WB
通讯作者: Wood,WB
DOI: 10.1016/0168-9525(93)90157-d
发表时间: 1993
期刊: Development
影响因子: 4.6
作者:
L. A. Mosquera;C. Forristall;Yi Zhou;M. L. King
通讯作者: L. A. Mosquera;C. Forristall;Yi Zhou;M. L. King
DOI: 10.1073/pnas.79.5.1558
发表时间: 1982-01-01
期刊: PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA-BIOLOGICAL SCIENCES
影响因子: --
作者:
STROME, S;WOOD, WB
通讯作者: WOOD, WB
秀丽隐杆线虫胚胎 RNA 分布的体种系不对称性。
DOI: 10.1242/dev.120.10.2823
发表时间: 1994
期刊: Development (Cambridge, England)
影响因子: --
作者:
Seydoux,G;Fire,A
通讯作者: Fire,A
DOI: 10.1073/pnas.93.24.13837
发表时间: 1996-11-26
影响因子: 11.1
作者:
Gruidl, ME;Smith, PA;Bennett, KL
通讯作者: Bennett, KL