系统树

Because microsatellite DNA accords with Mendelian inheritance and can reflect population relationship more reliability. mtDNA is extranuclear inheritance and belongs to maternal inheritance and is not superiority in population relationship analysis.

由于微卫星DNA符合孟德尔遗传规律，能够反映群体间的亲缘关系，构建的系统发育树结构可靠。mtDNA是核外遗传物质，具有母系遗传的特点，在反映群体间的亲缘关系上不具优势。

Phylogeny tree was constructed by the software of DNAMAN, the genetic relationship was far between Fraxinus velutina Torr and other plants.

利用DNAMAN软件构建的系统进化树表明绒毛白蜡与其他植物亲缘关系较远。

A further analysis of phylogenetic tree was constructed by the software of DNAMAN. The result showed that Fraxinus velutina Torr has a far genetic relation with other plants.

利用DNAMAN软件构建的系统进化树显示绒毛白蜡与其他植物亲缘关系较远。

The 16S rDNA sequence of the 4 strains were aligned with the 16S rDNA sequences of other species in genus Burkholderia,and the polygenetic tree was produced by using a Clustal V and treeview software.The results showed that P.cocovenenans subsp.farinofermentans was in a high homology with Burkholderia gladioli and Burkholderia cocovenenans, and they formed an independent phylogenetic clustal of genus Burkholderia.Key words: P.cocovenenans subsp.farinofermentans,16S rDNA sequcence,phylogeny

树状图及不同菌种之间的同源性比值：椰酵假单胞菌(P.cocovenenans subsp.farinofermentans)与唐菖蒲伯克霍尔德氏菌、椰毒伯克霍尔德氏菌的亲缘关系非常近，与其它菌种的亲缘关系相对较远，椰酵假单胞菌、唐菖蒲伯克霍尔德氏菌和椰毒伯克霍尔德氏菌可归属于一个独立的系统发育系。

The Lyb genes were novel members of Y-box gene family containing a conserved cold-shock domain with two RNA binding motifs (RNP-1 and RNP-2). Moreover, phylogenetic analysis revealed that there was only one type of Y-box gene before the emergence of gnathostomata. By contrast, the Y-box gene were divided into three groups, YB1, YB2, and CSDA during evolution of jawed vertebrates.

此外， 从Swiss-Prot下载了经实验验证过的Y-box蛋白序列数据，结合实验克隆得到的Lyb基因所编码的氨基酸序列构建系统发育树，发现Y-box基因在有颌类出现以前只有一种类型，有颌类出现以后， Y-box基因分化成YB1、YB2和CSDA三种类型。

Topological structure of the molecular phylogenetic tree, constructed by 16S rRNA gene with Neighbor-Joining method, revealed that all species of Helice from Sesarmidae and two species of Hemigrapsus from Varunidae were clustered into one branch, two species of Sesarma from Sesarmidae were clustered into another one, Grapsus albolineatus from Grapsidae and Plagusia tuberculata from Plagusiidae were formed one absolute branch respectively. The molecular analysis showed that the genus Helice indeed must be considered to be Varunidae, because it formed a monophyletic group with the genus Hemigrapsus yet not the Sesarmidae.

而采用NJ法构建的系统进化树的拓扑结构也显示，所有的厚蟹与属于弓蟹科的肉球近方蟹和绒螯近方蟹聚为一支；属于相手蟹科的2种相手蟹聚为一支；属于方蟹科的白纹方蟹和属于斜纹蟹科的瘤突斜纹蟹又各自成为一支。

The result of phylogenetic tree showed that PutAPx has the closdest genetic distance with Hordeum vulgare L. and Triticum aestivum.

系统发育树显示朝鲜碱茅与大麦、小麦遗传距离最近，跨膜结构与亚细胞定位表明为过氧化物体APX。

According to the analysis of the variation expectation value, species differentiation time in the CH4 sub-region phylogenetic tree, we found that Chinese sturgeon and the theoretical common ancestor of the other five sturgeon form the first bifurcation of the tree, while, among the five left, Amur sturgeon and Huso sturgeon, Russian sturgeon and Siberian sturgeon, Siberian sturgeon, Sterlte itself form another three bifurcations respectively.

通过对CH4区序列氨基酸变异期望值，物种分化时间及物种间系统进化树等参数的分析，将克隆的5种鲟鱼IgH恒定区序列与已发表的西伯利亚鲟同源序列比对后发现：西伯利亚鲟与俄罗斯鲟、施氏鲟与欧鳇、小体鲟各构成一个分支，并与中华鲟相对。

Based on CLUSTALX (1. 8) multiple sequence alignment, a gene tree dendrogram of Isatis was constructed.

在排序基础上构建了中国菘蓝属植物基因树系图，从分子水平上探讨了该属植物类群的系统演化关系。

There were 31 lumbar isthmic spondylolisthesis cases were treated by granule cancellous bone grafting and vertebral pedicle screw fixation. All of 31 cases were evaluated by standard of Hou Shu-xun and fusion rate after operation.

采用松质骨颗粒椎间植骨、峡部及后外侧植骨加椎弓根钉系统复位固定治疗峡部裂性腰椎滑脱症31例，术后采用侯树勋等制定的疗效评定标准及融合率来评价临床疗效。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失