查询词典 populations

Only the antennal length and wing length indicated two distinct populations when subjected to co-efficient of difierenee(CD》1.28),while other characters indicated one population.

差异系数分析结果表明，仅触角长度和翅长显示此复合体为两个不同的种群(CD》1.28)，而其他特征值表明为同一种群。

It was shown in the populations that the apiculus coloration matched to basal leaf sheath coloration in each plant.

在各个植株上，稃尖颜色和叶鞘颜色的表现完全相同。

RDNA-ITS sequence analysis of 30 populations showed that there is difference among M. incognita, M. hapla, M. arenaria, M. javanica, M. panyuensis, M. zhanjiangensis. and M. hainansis, whereas little rDNA-ITS sequence difference among three normal Meloidogyne species.

通过对30个种群的rDNA-ITS序列分析，发现番禺根结线虫、海南根结线虫、北方根结线虫、湛江根结线虫、南方根结线虫、爪哇根结线虫和花生根结线虫种间的DNA-ITS区碱基序列存在差异，但后3种常见种之间差异小。

In a word, our analyses showed the genetic diversity of Aristida pennata populations was rich and the genetic structure was complicate.

群体遗传分化系数为0.8247，表明有82.47％的遗传变异存在于株丛之间，而只有18.53％的遗传变异存在于株丛内。

Especially, under the condition of desert-expanding and habitant-destroying, the studying on the genetic structure of Aristida pennata populations is very important to understand the population persistence style of the grass in the Desert.

羽毛三芒草遗传结构反映了它克隆繁殖的特性以及对沙漠恶劣环境良好的适应性。

The index (Gst=0.5284) presentes that 52.84% molecular variation existes among subpopulations, 47.16% existes within subpopulations. There are changes of genetic differentiation from 0.0000 to 1.0000. In addition, the gene flow of Aristida pennata populations is 0.4426, which suggests relative limited gene flow may be one of important factor influencing on the genetic structure of the species.

亚种群间的基因分化系数为0.5284，即有52.84％的遗传多样性存在于种群间，有47.16％遗传多样性存在于种群内，各位点的遗传分化程度差别较大(0～1.0000)，其基因流为0.4462，不足以防止漂变引起的种群间的遗传分化。

Using RAPD markers techonolgy analysed the genetic structure of populations and built up the reaction system of SSR markers of Aristida pennata, at the same time, analysed the genetic structure based on SSR markers techonolgy. The research results are as follow:(1) 11 amplifiction random primers were used to detecte 125 loci in 76 samples. The total proportion of polymorphic loci of. Aristida pennata is 96.8%, the average proportion of polymorphic loci of Aristida pennata is 45.3%. The analyses of Shannon diversity index (1,0.5151) and Nei gene diversity index(h, 0.3471) indicate that the gene variation is rich in subpopulations.

Pennata.tirn为研究对象，在阜康，147团及121团周边等7个亚种群采集76个样品，通过RAPD分子标记技术进行亚种群内和种群间的遗传变异分析，并采用SSR技术建立羽毛三芒草的检测技术平台同时进行遗传结构分析，结果表明：(1) 11条RAPD引物检测到76个样品有125个位点，总多态位点百分比为96.8％；亚种群内平均多态位点比为45.3％，香农表型多样性指数(1，0.5151)，Nei's基因多样度指数(h，0.3471)都说明羽毛三芒草种群有较为丰富的遗传变异。

Besides, the genetic differentiation also existed among subpopulations. We deduced that the limited gene flow and breeding type were important factors leading to genetic differentiation. The genetic structure of Aristida pennata populations reflected its characteristics of clone reproduction and the good adaption to the severe environments.

本研究认为羽毛三芒草种群遗传多样性很丰富，遗传结构较为复杂，亚种群间遗传多样性大，亚种群间存在一定遗传分化，基因流和繁育方式是导致种群遗传分化的主要因素。

Genetic diversity of 5 populations of endangered Artocarpus hypargyreus was studied by random amplified polymorphic DNA. The results showed that there was great genetic diversity within A.

利用随机扩增多态DNA分子标记技术对濒危植物白桂木Artocarpus hypargyreus 5个天然种群进行遗传多样性分析。

AIM: To determine the distribution and frequency of functionally important allelic variants in the cytochromes P450 2C19, arylamine N-acetyltransferase 2 (NAT2), and thiopurine S-methyltransferase genes in the Han Chinese population and compare them with those of other ethnic populations.

目的： 了解细胞色素P450(cytochromes P450，CYP)2C19，N-乙酰基转移酶2(arylamine N-acetyltransferase 2，NAT2)和硫嘌呤甲基转移酶(thiopurine S-methyltransferase，TPMT)基因常见的遗传多态性在河南地区汉族人群中的分布及其频率。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。