查询词典 phylogenetic development

This study is the first attempt to combine gene sequences with morphological characters to provide a phylogenetic reconstruction of the subfamily Euphorinae (Hymenoptera: Braconidae).

本研究选取优茧蜂亚科Euphorinae（膜翅目Hymenoptera：茧蜂科Braconidae）的8族19属23种作为内群，茧蜂其它6个亚科的8属8种作外群，首次结合同源核糖体28S rDNA D2基因序列片段和41个形态学特征对该亚科进行了系统发育学研究。

In this paper, the cloning, expression and phylogenetic analysis of AmphiSDHD and AmphiS27 from the gut cDNA library of amphioxus Branchiostoma becheri tisingtauense are carried out.AmphiSDHD, encoding the cytochrome b small subunit in mitochondrial succinate-ubiquinone oxidoreductase, was isolated from the gut cDNA library of amphioxus Branchiostoma belcheri tsingtauense.

本文从青岛文昌鱼(Branchiostoma belcheri tsingtaunese)肠cDNA文库中，分离得到克隆L095和094，经鉴定它们分别编码文昌鱼线粒体琥珀酸-泛醌氧化还原酶中细胞色素b的小亚基和核糖体蛋白S27(AmphiS27)。

The results demonstrated that MC1R gene of bird was relatively conserved. The results of phylogenetic analysis showed that consanguinity relations between mule duck, anas platyrhynchos and branta bernicla, anser caerulescens, anser canagica were close.The status of them were confirmed on zoologyl by means of molecular method.

可见禽类的MC1R 基因编码区序列具有高度的保守性；系统进化分析表明，半番鸭、北京鸭与雪雁、黑雁、皇雁亲缘关系相近，从分子角度验证了它们在动物学分类上的地位。

The intergeneric phylogenetic trees of water lilies showed that Nelumbo and Ceratophyllum form a sister group, but with relatively high sequence divergence, supporting that place the two genera into two distinct families; and Brasenia and Cabomba form a sister group, with relatively low sequence divergence, supporting that the two genera were placed the same family Cabombaceae.

结果表明：莲属与金鱼藻属构成姐妹群，但序列分歧度较大，支持将两个属独立成科的观点；莼菜属与水盾草属构成姐妹群，且序列分歧度较小，支持现有的莼菜科处理。

The polymorphic profile could reflect the polymorphism of the taxa and related taxa. RAPD can provide some molecular proof for Bryaceae's phylogeny. There is no need to study deeply on Phylogenetic relationships of Bryaceae.

可见RAPD可以为真藓科Bryaceae植物的系统发育研究提供分子证据，真藓科Bryaceae植物的系统发育关系有待进一步研究。

The placement of Pohlia, the status of Rhodobryum genera and the phylogenetic relationship of several generas within Bryaceae are conflictive. In this study, the optimum random amplified polymorphic DNA reaction system for Bryaceae was built, then the RAPD profile of Bryaceae was construct.

在真藓科Bryaceae中，丝瓜藓属Pohlia的位置、大叶藓属Rhodobryum属的地位和真藓科Bryaceae内几个属的系统排列关系一直存在争议。

The result from phylogenetic trees created respectively by MP, NJ and UPGMA indicates that Bryaceae and Bryum are not monophyletic. The definition of some groups of Bryaceae and Bryum is doubtful in traditional classification based on morphological data. The analyses approves that Pohlia is more closely related to Mniaceae than Bryaceae, which supports placement of Pohlia in Mniaceae from Bryaceae based on DNA sequence data.

系统发育分析的结果显示：丝瓜藓属Pohlia更接近于提灯藓科Mniaceae而远离真藓科Bryaceae的类群，支持Cox等分子序列证据将丝瓜藓属Pohlia放在提灯藓科Mniaceae的安排；大叶藓属Rhodobryum与真藓属Bryum作为姊妹群存在，不支持Ochi将其作为真藓属Bryum内一个亚属的安排。

Bryozoa is an important group of metazoan animals which has received relatively little attention regarding their origin, phylogenetic relationship with other metazoan phyla and its internal phylogeny.

苔藓动物是后生动物中的一个重要类群。然而，和其它主要后生动物类群相比，长期以来对它的系统学研究却相对滞后。其起源、系统发生地位以及与其它后生动物门类之间、其内部各高级分类群间的谱系发生关系一直存在争议。

According to the phylogenetic analyses, the homologous genes of Buxus belong to their expected clades, showing a position near the base of core eudicots.

另外，根据谱系分析的结果，鉴定出的黄杨花部基因分别属於ABCE 同的基因系群内，位於真双子植物之中。

Parvifolia was 642bp by cloning PCR production and sequencing, and its phylogenetic information might facilitate to provide the direct molecular evidence to clarify its origion and evolution for Buxus sinica var. parvifolia.

珍珠黄杨ITS片段克隆测序后获得的序列长度为642bp，其系统学信息将为珍珠黄杨的起源进化提供有力的分子水平证据。

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。