查询词典 clade

Alternatively,有性生殖 may allow for the ' ratcheting ' of evolutionary speed as one clade competes with another for a limited resource .

或者，有性生殖可能象'棘轮'那样控制了进化发展的速度，因为一个进化枝会和另一个竞争有限的资源。

Pig represents an evolutionary clade distinct from primates or rodents, and thus, provides considerable power in the analysis of human genomic sequences.

由于家猪在进化上和灵长类及啮齿类动物均存在差异，有关家猪基因组序列的研究将为解析人类基因组序列提供重要的信息。

Savolainen thought that there were at least six founders existing in the origin center, because clade A structure was too complicated to decide how many founders were contained in it.

另外，在Savolainen等人的研究中，由于支系A的结构非常复杂，因而无法判断其中包含了几个建群者，所以在他们的结论中只是笼统地给出，现代家犬的起源—线粒体DNA的研究起源中心的母系建群者不少于6个。

PCR with Family special primers was carried out to identify Family of PspA, and Clade of PspA was identified by means of bioinformatics according to the sequencing results.

通过家族专属引物PCR的方法鉴定这5种荚膜血清型肺炎球菌的PspA蛋白所属家族，并进一步根据基因测序结果通过生物信息学方法鉴定了所属支系。

Phylogenetic tree analysis based on the amino acid sequences showed that Hprt of swamp eel and zebrafish was in one clade.

基于该基因氨基酸序列构建了进化树，显示与斑马鱼Hprt基因更同源。

The Piwi clade is found in all animals examined so far, and its presence is tightly correlated with the emergence of specialized germ cells. Most animals separate germline and somatic cells early in development and restrict Piwi expression specifically to germ cells.

Piwi蛋白迄今为止被发现存在于所有动物中，它的存在与专门的生殖细胞紧密相关，大多数动物在发育的早期开始了不同组织和体细胞的分离和分化，并且对于生殖细胞的Piwi蛋白的表达进行特别的限制。

All populations from east China were grouped into a single Clade, sister to the one comprising all populations from Southwest China.

以粉花绣线菊及其相关类群为例，从种群遗传学角度论述了东亚物理环境异质区的客观实在性及其生物学效应。

Hierarchical cluster analysis indicated that Ga, As, In and Tl were of the same clade, indicating that Ga, As, In and Tl were discharged from an identical origin.

阶层式群聚分析指出元素金家、砷、铟与钛是相同的分枝，意指元素金家、砷、铟与钛来自相同的来源。

The Sichuan, Baojing and Shimen populations composed core clade, and then gathered with the southern and northern populations, respectively, based on the UPGMA analysis.

基于遗传距离的UPGMA聚类中，位于华西的四川居群和中南的保靖和石门居群组成核心分支，再分别与向南和向北的居群聚合。

In Genus Culter, genetic distance within species is obviously lower than that between species. And in the phylogenetic trees, all individuals of each species formed a clade. Then the conculsion was that mitochondrial CO1 gene was a good marker in Culter DNA barcoding. The conclusion was the same when the research group turned to Subfamily Cultrinae.

对鲌属物种的DNA条形码研究而言，其种间遗传距离显著地大于种内遗传距离，并且同一物种的不同个体均形成高支持率的单系，说明在鲌属类群中线粒体CO1基因是一个有效的DNA条形码标准基因。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐