查询词典 genetic

This conclusion provides an explanazation for the genetic connection between granitoids and gold deposits. It shakes the traditional but still prevalent viewpoint of taking a close spatial relation between granitoid and gold deposits as a genetic connection.

这一认识为花岗岩与金矿的成因关系提供了一种解释，动摇了目前流行的把金矿与花岗岩密切的空间联系当作成因关系的传统认识。

A genetic epidemiologic case-control study including 407 pedigrees(249 cabes and 158 controls)was car-ried out to estimate the segregation ratio and the hereditability(h￣2)of esophageal cancer by using the methodof Li-Mantel-Gart and Falconer,respectively,and to compare the genetic epidemiologic features from theother cancers.

本文通过遗传流行病学病例对照研究，对淮安407个家系（249个先证病例，158个对照），应用Li－Mantel－Gart和Falconer方法分别进行了分离比、遗传度估算及比较流行病学研究。

Comparing the genetic diversity of Coreius heterodon with that of other fishes, the experiment revealed that the genetic diversity of Coreius heterodon in the lower reach of the Yangtze River was a little lower.

通过与其他鱼类的遗传多样性的研究结果比较可初步判断，长江下游铜鱼群体的遗传多样性较低。

Study on the genetic characteristic of improved lines which can broad temperate maize genetic basis, found new heterotic patterns, resolve the back and force situation, overcome the obstacle of high and super- high yield breeding, provide the technique guarantee for the sustainable development of Chinese maize production.

对改良系进行遗传研究，拓宽温带玉米的遗传基础，构建新的杂种优势模式，这将解决我国玉米育种徘徊不前的局面，克服玉米高产超高产育种的障碍，为我国玉米生产的可持续发展提供技术保障。

There was great diversity index among genetic trait of 50 barley. The anomic trait used as tested materials was analyzed by cluster. Cluster analysis showed that 50 barley could be classified into 5 groups at the level of GD 3.28; The 50 barleys were analyzed by A-PAGE to study genetic diversity of hordein.

各农艺性状的遗传多样性指数都较大，具有丰富的遗传多样性；对供试材料的农艺性状进行聚类分析，50份大麦材料在遗传距离3.28时可被聚为5大类。

Vallisneria spinulosa maintained high levels of genetic variation both at the species and at the population level. Partitioning of genetic diversity revealed a surprisingly low population differentiation as compared to other hydrophilous angiosperms.

利用等位酶和开发的微卫星标记研究了刺苦草在长江中下流域的遗传多样性和遗传结构，研究结果表明，刺苦草在居群水平和种水平都具有高的遗传多样性；居群间遗传分化程度非常小；居群间历史上存在长距离基因流。

RAPD ; Castanopsis hystrix ; genetic distance ; genetic diversity

RAPD技术；红锥；遗传距离；遗传多样性

Our molecular phylogenetic trees constructed by UPMGA and NJ methods were in general consistent with that based on biochemical,immunogenetic and cellular genetic markers except for differences in some populations.It was inferred from this study that all pig populations examined could be temporary classified into one breed,however,the population genetic character of Taihe Guanchao and Wanan Spotted pig populations should be further evaluated.

各类群的UPMGA和NJ聚类分析结果与采用生化、免疫和细胞遗传标记分析的结论不尽相同，在此基础上，结合现行分类方法，认为各受试猪群可暂时归并为赣中南花猪类型，但对泰和冠朝猪和万安花猪的品种归属性应作进一步分析。

The result ofpairwise Fst and Neutrality tests revealed significant genetic differentiation amongfour populations,and evolution of mtDNA COI gene incompliance with the Neutralitytheory.The genetic distance was the biggest between HEB and JXL,and was thesmallest between SDT and JXL among the 4 populations.

遗传多样性研究采用了线粒体DNA COI基因序列、RAPD和PCR-RFLP三种分子标记研究大猿叶甲4个地理种群的遗传结构和群体遗传多样性。1、对长约335bp的mtDNA COI片段进行序列分析，在4个群体64个个体中，共发现37个单倍型，总变异位点35个，多态位点29个，含量(63.68％)大于含量(36.32％)。4个地理种群的核苷酸多样性指数分别为，0.082、0.035、0.099、0.186。

The analysis revealed that the intervarietal genetic relationships of several varieties was related to their pedgree of the parent and most of the varieties had a narrow genetic base.

聚类分析表明，30个棉花品种可分为3组，品种间的遗传关系与品种自身的系谱有关，大多数品种的遗传基础比较狭窄。

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。