2.2Operational Taxonomic Units (OTUs) Distance approaches compute the distance matrix from the original data, a process in which information is said to be lost. Also, this method produces just onetree. Character-state approaches are considered to be more efficient than distance methods because ...
必应词典为您提供operational-taxonomic-units的释义,网络释义: 分类单元;运筹分类单位;分类单位;
1、OTU是什么? OTU(operational taxonomic units),即操作分类单元。通过一定的距离度量方法计算两两不同序列之间的距离度量或相似性,继而设置特定的分类阈值,获得同一阈值下的距离矩阵,进行聚类操作,形成不同的分类单元。专业解释太书面不好理解?没事儿,给你举个“栗子”就明白了! 2、OTU在16S测序中有何用? 高通...
楼上正解。operational taxonomic units是可操作分类单元，说白了，就是根据基因测序结果对微生物进行分类...
可执行的分类操作单位，主要是按照16sDNA测序结果计算遗传距离，人为规定遗传距离，然后依此距离区别微生物...
OTU，是指系统发生分析中的一个外部节点，是一个假定的分类单元；常见于动植物种类系统发育分析。例如6clone/2OTUs是指要进行系统分类分析的个体，即每2个待分析的个体包含6个克隆。这里还有篇英文文献：DefiningoperationaltaxonomicunitsusingDNAbarcodedata运算的分类单位operationaltaxonomicunit缩写OTU，指在...
(2008) The last common denominator: species or operational taxonomic units? Accessing Uncultivated Microorganisms: from the Environment to Organisms and Genomes and Back. Zengler, K. (ed.). Washington, DC, USA: ASM Press, pp. 117-130.
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have long been recognised to infect chickens, with three additional cryptic operational taxonomic units (OTUs) first described more than 10 years ago. As the world’s farmers attempt to reduce reliance on routine use of antimicrobials in livestock production, replacing drugs that target a wide ...
Operational Taxonomic Units (OTUs), usually defined as clusters of similar 16S/18S rRNA sequences, are the most widely used basic diversity units in large-scale characterizations of microbial communities. However, it remains unclear how well the various proposed OTU clustering algorithms approximate ?