龙虱科甲虫的核糖体DNA扩增产物
The amplified ribosomal DNA of dytiscid beetles.
作者信息
Gall J G, Rochaix J D
出版信息
Proc Natl Acad Sci U S A. 1974 May;71(5):1819-23. doi: 10.1073/pnas.71.5.1819.
Abstract
During oogenesis in many animals there is a massive extrachromosomal synthesis of the genes for ribosomal RNA. In Dytiscid beetles, as in the toad Xenopus, the amplified ribosomal DNA occurs as circular molecules of different sizes. The circles fall into size classes that are integral multiples of a unit circle. It is probable that the unit circle contains the coding sequence for one precursor ribosomal RNA molecule plus accompanying spacer sequences.
摘要
在许多动物的卵子发生过程中，核糖体RNA基因存在大量的染色体外合成。在豉甲科甲虫中，如同蟾蜍非洲爪蟾一样，扩增的核糖体DNA以不同大小的环状分子形式存在。这些环可分为大小类别，它们是一个单位环的整数倍。单位环很可能包含一个前体核糖体RNA分子的编码序列以及伴随的间隔序列。
Zotero 插件