查询词典 evolutionary tree

In biological systematics as a whole, phylogenetic analyses have become essential in researching the evolutionary tree of life.

从生物分类学总体上看，在对生命进化树的研究中，系统发生分析已成为必不可少的要素。

VOICE: So the trilobite was at the bottom of the evolutionary "tree of life" when classified by its age

所以，三叶虫应该是在'生命树'的底层，表示最古老的，而在这树的最上面应该属更复杂的物

The vertebrate TSHβ protein sequences had been used to construct Neighbor-joining and Maximum parsimony phylogenetic tree. As analyzed, Andrias davidianus derived from amphibia firstly, which could reflect its original evolutionary status.

采用邻接法和最大简约法对部分脊椎动物TSHβ氨基酸序列构建分子系统树，结果显示有尾目大鲵为两栖动物中较早分化的一支，表明其进化地位较原始。

Comparative genomics in Salicaceae, Pinaceae, Rosaceae, Fagaceae and Hamamelidaceae had shown that the organization of genomes remained highly conserved over long evolutionary periods and extensive synteny or collinarity or microcollinarity existed in tree genomes.

有关林木比较基因组学研究主要集中在杨柳科、松科、蔷薇科、壳斗科和金缕梅科的一些树种中。

The phylogenetic tree, based on 16S rDNA sequences, indicated that strains 117 and 43401 formed two distinct phyletic lines within the evolutionary radiation occupied by the genus Nocardia.

20株稀有放线菌的16S rDNA序列分析表明，分离菌株117、43401和12202与其相关种之间具有相对低的序列相似性，被选择以进行进一步的多相分类研究。

Thus, a phylogenetic tree is based on a hypothesis of the order in which evolutionary events are assumed to have occurred.

因此，系统树是基于对进化事件发生顺序的假设。

My work of art was now the whole evolutionary tree of sculptures.

我的艺术工作现在就是雕塑的整个进化树。

Will induce multiple sequence alignment and constructing the system of evolutionary tree In 2009, on a college journal X published an article Topic

会进行多重序列比对和构建系统进化树在2009年X月某大学学报上发表过一篇文章题目

But baboons are on a whole different limb of the evolutionary tree.

但狒狒是在一个完全不同的进化树枝上。

But baboons are on a whole different limb of the evolutionary tree.

但是狒狒却是在一个完全不同的进化树上。

Objective To investigate the relationship between ovum fertilization rate and sperm morphology, acrosome reaction in IVF and to explore the influence of parameters of sperm on fertilization rate.

目的 研究体外受精(in vitro fertilization，IVF)中精子形态、顶体反应与卵子受精率之间的关系，分析精子各参数在IVF受精率方面的参考意义。

A: I hear Mr. White wants to run for the Presidency!

我听说怀特先生要参加总统竞选！