查询词典 genetic

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。

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。

Based on thecluster analysis and PCA,the 23 germplasm materials investigated may be divided intotwo groups,most of genetic variation was within group.There was a certain relationshipbetween genetic distance and geographic distance among Arrhenatherum elatius L. in theresearch.

基于ISSR标记的UPGMA聚类分析与主成分分析表明，23份高燕麦草种质材料能按照采集地点的不同分为两大组，组间遗传距离的差异是导致供试材料整体遗传差异较大的主要因素，而组内材料间亲缘关系较近，地理距离与高燕麦草的遗传距离有一定关系。

In order to meet national requirements for conserving and researching biodiversity and realize construction goals on sharing flatform for genetic resources of wild artiodactyla and perissodactyla animals in the West of China at home and abroad, by analyzing existing data and investigating on the spot, genetic resources of wild artiodactyla and perissodactyla animals in the West of China and Web database were specially researched at three aspects as follows.

西野生偶奇蹄目动物遗传资源研究通过系统分析现有文献资料和实地调查研究，对西部野生偶奇蹄目动物遗传资源编目、种和亚种分类及濒危等级，种群动态预测与生物地理分布，濒危动态估算和濒危动物模型建立，保护利用模式及保护级别提案等遗传资源层面尚存在的数据信息混乱、缺乏或空白的领域进行了重点研究。

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。

The results indicate that the method of ERIC-PCR is more rapid and reliable than RAPD, and may substitute for RAPD in research related to the genetic identification and genetic diversity in Auricularia.

研究结果表明ERIC-PCR是一种比RAPD更快捷可靠的分子标记方法，可以替代RAPD应用于木耳属的遗传多样性及遗传分类的研究。

The near isogenic lines containing the S5n allele from different original WCVs . and genetic background from japonica variety Balilla were crossed with 20 indica-japonica varieties representing different ecotypes, the results indicated that genetic effect of S5n from different wide compatibility varieties was not completely same, and that the compatibility power and compatibility spectrum of near isogenic lines carrying S5n from different donors were different.

以不同来源的广亲和品种为供体、以粳稻品种Balilla为受体的近等基因系与不同籼粳测验种测交结果表明，不同起源的广亲和基因S_5~n对杂种育性的遗传效应是不完全相同的，亲和力和亲和谱都存在差异。

Genetic variation was evaluated using phenotypic traits and RAPD markers in 8 natural populations of Betula luminifera from Fujian Province, China. The relationship between genetic variation and environmental factors was also examined.

采用表型性状测定结合RAPD标记，研究福建境内8个光皮桦野生种群的遗传变异，探讨遗传变异与环境因子间的相关性。

From above, fine genetic resources of asexual reproduction had been found from commercial and bivoltine genetic races.

因此，在我国二化性蚕品种中可获得雌蚕无性繁殖系培育所需的优良种质资源。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。