Bacterial group II introns in a deep-sea hydrothermal vent environment.
Bacterial group II introns in a deep-sea hydrothermal vent environment.
复制标题
深海热液喷口环境中的第二组细菌内含子。
DOI：
10.1128/aem.68.12.6392-6398.2002
复制
发表时间：
2002
影响因子：
4.4
通讯作者：
Sogin,MitchellL
中科院分区：
文献类型：
--
作者：
Podar,Mircea;Mullineaux,Lauren;Huang,Hon-Ren;Perlman,PhilipS;Sogin,MitchellL
II 组内含子是已知存在于一些非海洋细菌和真核细胞器基因组中的催化 RNA 和移动逆转录转座元件。在这里，我们报告了在东太平洋海隆北纬 9°附近的深海热液喷口采集的细菌垫样本中发现了 II 族内含子。其中一个内含子被证明可以在体外进行自我剪接。这是对生活在热液喷口附近的微生物的分子种群结构研究中发现的第一个海洋细菌内含子的例子。这些类型的移动遗传元件可能有助于提高我们对细菌基因组进化的理解，并且可以作为细菌群落比较研究中有价值的标记。
Group II introns are catalytic RNAs and mobile retrotransposable elements known to be present in the genomes of some nonmarine bacteria and eukaryotic organelles. Here we report the discovery of group II introns in a bacterial mat sample collected from a deep-sea hydrothermal vent near 9°N on the East Pacific Rise. One of the introns was shown to self-splice in vitro. This is the first example of marine bacterial introns from molecular population structure studies of microorganisms that live in the proximity of hydrothermal vents. These types of mobile genetic elements may prove useful in improving our understanding of bacterial genome evolution and may serve as valuable markers in comparative studies of bacterial communities.