Porter Megan L, Engel Annette Summers
University of Maryland Baltimore County, Department of Biological Sciences, Baltimore, Maryland 21250, USA.
Appl Environ Microbiol. 2008 Aug;74(15):4973-7. doi: 10.1128/AEM.02915-07. Epub 2008 Jun 6.
This study expands the phylogenetic diversity of Epsilonproteobacteria using the 16S rRNA gene framework. Of the 73 lineages defined by sequence similarities at or greater than 99%, most were found at only one site. In contrast, eight lineages were retrieved from sites spanning geographic distances from 1,000 to >10,000 km.
本研究利用16S rRNA基因框架扩展了ε-变形菌门的系统发育多样性。在由99%及以上的序列相似性定义的73个谱系中,大多数仅在一个位点被发现。相比之下,从地理距离跨度为1000至超过10000公里的位点检索到了8个谱系。