| 书目名称 | Germ Line — Soma Differentiation | | 编辑 | Wolfgang Hennig | | 视频video | | | 丛书名称 | Results and Problems in Cell Differentiation | | 图书封面 |  | | 描述 | One of the oldest problems in developmental biology is the differentiation between germ line and somatic cells. The continuity of germ line cells between subsequent generations of multicellular organisms was first suggested by Owen, and later elaborated by A. Weismann to his famous germ line theory. His additional assumption that cellular differentiation was based on a differential representation of the genetic material in somatic cells was soon disproved. In some, apparently exceptional, cases, however, such differences in the genetic material between germ line and somatic cells were discovered. The best-known example is the nematod Ascaris. Boveri discovered and studied the fundamental differences in the karyotypes of germ line and soma of Parascaris equorum. Later, similar situations were found in some other organisms. However, in particular the work ofSpemann demonstrated that cellular differentiation in general is not accompanied by fundamental changes of the genetic material. Subsequently, the relatively few examples of germ line-soma differences achieved by chromatin elimination processes have been considered as a curiosity. Experimental studies have been essentially restric | | 出版日期 | Book 1986 | | 关键词 | DNA; biology; cell; chromosome; developmental biology; genome | | 版次 | 1 | | doi | https://doi.org/10.1007/978-3-540-39838-7 | | isbn_softcover | 978-3-662-21958-4 | | isbn_ebook | 978-3-540-39838-7Series ISSN 0080-1844 Series E-ISSN 1861-0412 | | issn_series | 0080-1844 | | copyright | Springer-Verlag Berlin Heidelberg 1986 |
The information of publication is updating
|
|
发表于 2025-3-21 16:39:56
