查询词典 phylogenetic development

Multiple sequence alignment and phylogenetic analysis of CVX-NTU and other completely sequenced potexviruses demonstrated that CVX-NTU has a close relationship with potexviruses infecting plants in the family Cactaceae.

将CVX-NTU病毒分离株各个ORF与其它已知序列的同属病毒作胺基酸序列比对及类缘分析，结果显示感染仙人掌科的potexvirus都属同一个分群中，显示彼此的类缘关系较密切。

Therefore, NTU isolate is considered as a new CVX isolate and thus designated as CVX-NTU. Multiple sequence alignment and phylogenetic analysis of CVX-NTU and other completely sequenced potexviruses demonstrated that CVX-NTU has a close relationship with potexviruses infecting plants in the family Cactaceae.

当完成NTU全长度核酸序列的解序工作后，将NTU的各个基因转译成胺基酸序列，与已发表的CVX-Hu胺基酸序列作比对，发现两者的RdRP与CP相同度分别达85%和86%，故认定为一新发现之CVX分离株，并取名为CVX-NTU。

In this study, the spore germination of Lasiosphaera fenzlii and Calvatia gigantea were studied,the optimum fermented conditions were investigated.The anti-inflammation and antibacterial were carried out using the fermentative products. The results were as follows: Molecular identification techniques using DNA showed that samples collected are Lasiosphaera fenzlii and Calvatia gigantean.Using analysis of Internal transcribed sequence and construct phylogenetic trees,results showede that Lasiosphaera fenzlii and Calvatia gigantean have close relationship.

本研究以大秃马勃Calvatia gigantea和脱皮马勃Lasiosphaera fenzlii为研究材料，进行了马勃孢子的萌发条件研究，并以大秃马勃Calvatia gigantea菌种为研究材料，进行了优化培养和发酵液药理实验的初步研究，结果如下：采用DNA分子鉴定技术对采集的样品进行了分子鉴定，结果为大秃马勃Calvatia gigantea和脱皮马勃Lasiosphaera fenzlii。

The phylogenetic relationships of Calycanthaceae were investigated by means of molecular systematics, which was based on three DNA sequences from three genomes, including chloroplast DNA trnL-F, nuclear 18S ribosomal DNA, and mitochondrial matR gene.

本文选取来自于三个基因组—核基因组、线粒体基因组和叶绿体基因组的3个DNA序列片段，对蜡梅科的系统发育进行重建，主要探讨了蜡梅科的系统位置和属间系统演化关系。

The phylogenetic relationship of raptors and nighthawks were estimated by mitochondrial rRNA gene sequences in this study by comparing the partial basepair fragments of 12S rRNA and 16S rRNA genes among 5 species of Falcoiformes, 3 species of Strigiformes and 1 species of Caprimulgiformes sequenced in this experement, together with the homologous segments of mtDNA in other 17 species of birds downloaded from GenBank.

本文测定5种隼形目鸟类、3种鸮形目鸟类和1种夜鹰目鸟类的部分线粒体12S rRNA基因和16S rRNA基因，结合从GenBank下载的17种鸟类同源基因进行系统进化研究。

In order to direct the construction of plant germplasms by elucidating the relatives among plants at the level of gene, CYP86MF gene analogues from 11 species of 6 genera in Cuciferae were respectively obtained by PCR strategy using gene specific primers designed from conserved regions of CYP86MF gene reported. Sequence comparisonindicated that the similarities among the genes at nucleotide level were over 80%, and the similarities at amino acid level remained above 70%. The differences between the genes at nucleotide and amino acid level between species were 1.0%~ 5.7% and 2.6%~ 7.3% respectively, while those between genera 5.6%~ 22.5% and 7.3%~ 31.2%, respectively. Phylogenetic analysis showed that Brassica was closely related to Raphanus, followed by Rorippa Scop, Arabidopsis Heynh, Capsella Medic orderly, most distantly related to Orychophrogmus.

为了从分子水平阐明十字花科植物间的亲缘进化关系，给植物种质资源的创建提供理论依据，试验根据课题组已报道的CYP86MF基因编码的氨基酸保守区域设计特异引物，运用PCR技术分别从十字花科6个属11个物种中分离克隆到了CYP86MF基因的同源序列，经比较分析，结果表明：这些同源序列的相似性达80%以上，所推导的氨基酸序列相似性达70%以上，且两者种间差异分别为1.0%~ 5.7%和2.6%~ 7.3%，属间差异分别是5.6%~ 22.5%和7.3%~ 31.2%；由氨基酸序列构建的分子系统树可知，在亲缘进化关系上芸薹属与萝卜属较近，其他依次为蔊菜属、拟南芥属、荠菜属，而与诸葛菜属最远。

KDa. Phylogenetic tree analysis showed that the putative rice OsCAS had a high amino acid identity (99%) to maize β-caryophyllene synthase, whereas a low amino acid identity (51%) to those in other plants including Arabodopsis, Artemisia and cucumber.

系统进化树分析表明，水稻OsCAS基因编码蛋白的氨基酸序列与同为单子叶植物玉米的β-石竹烯合成酶氨基酸序列同源性达99%，而与其他植物的同源性仅51%。

By using the traditional taxonomic methods, electronic microscope examination, 18S rDNA, ITS sequences and phylogenetic analysis, an endophytic fungus HCCB1621 isolated from the cephalotaxus sinensi was identified as Trichoderma viride Pers.ex Fr. Its anti-tumor activities were studied as well.

利用传统分类学方法、电子显微镜观察、18S rDNA和ITS序列的测定以及系统发育分析对一株分离自粗榧抗肿瘤活性内生真菌HCCB1621进行分类鉴定，并对其产物抗肿瘤活性进行了初步研究。

The result of analyzing the base content revealed that only the sequences from Buxus bobinieri have GC bias, especially at the third base of codes, and the GC content is more than 70%. All of molecular phylogenetic trees, based on the Beyesian, MP, and NJ methods, consisted of three major clades. Four sequences from Ceratophyllum demersum were grouped into a monophyletic clade (subfamily Ⅱ). Two sequences out of Trochodendron aralioides nested in subfamily Ⅲ. Another three sequences from Kingdonia uniflora interspersed among different subclades of subfamily Ⅰ.

用贝叶斯法、最大简约法和邻接法构建的CHS基因的分子系统树均由3个主要分支构成，其中一个分支由来自金鱼藻的4个序列聚在一起构成了subfamily Ⅱ，来自昆栏树的2个序列聚在一起网接于subfamily Ⅲ中；来自独叶草的3个序列分散于同一亚家族(subfamily Ⅰ)的不同分支中；而多数种的序列分散在相距较远的两个分支中，构成了两个主要的亚家族subfamily Ⅰ、subfamily Ⅲ。

Further comparison with other Chamaecyparis species, especially C. obtusa, is required in order to understand the phylogenetic relationship between C. formosensis and C. taiwanensis.

红桧与台湾扁柏间之亲源关系，仍有待与其它扁柏属植物，特别是日本扁柏比较后才能明确了解。

A historical region of southwest France between the Pyrenees and the Garonne River. The duchy of Aquitaine was joined with France after the marriage of Eleanor of Aquitaine to King Louis VII in1137, but its possession was disputed after her subsequent marriage to Henry II of England.

阿基坦法国西南部一个历史地区，位于比利牛斯山和加隆河之间，在1137年阿基坦的埃莉诺与国王路易斯七世结婚之后阿基坦公国加入法国，但当她再嫁英国亨利二世后，其归属权便受到争议

There are moments when I look at the smiling , happy faces of my expectant staff and wonder how they will cope when confronted by an outraged housemaster along with an unrepentant and recalcitrant bleached blond teenager in 18 years ' time .

有时候，我看着那些满怀期待的员工微笑，幸福的脸，想着当他们遇到一位愤怒的宿舍管理员和一位不知悔改，叛逆，而且将头发染成白色的18岁少年时，他们会如何处理。