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This results gave a clearly outlook of the genetic relationship and genetic diversity level among Amygdalus plants germplasm.

这个结果也表明了扁桃属植物种质资源的演化关系和遗传多样性水平。

The genetic variation among the natural populations of ginkgo revealed by Nei"s analysis , Shannon"s information index analysis and analysis of Molecular Variance ISSR :Gst=0.1955,(= 0.1903,φST= 17.63%;RAPD:Gst=0.2882,= 0.2949,φST=36.69% was greater than other kinds of anemophilous plants. The genetic differentiation among populations might be caused by human selective pressures and barriers of geography.

3Neis遗传多样性分析、香农信息指数分析和AMOVA分析所揭示的银杏居群遗传分化水平ISSR ：Gst=0.1955，= 0.1903，φST= 17.63%；RAPD：Gst=0.2882，= 0.2949，φST=36.69%，高于一般风媒植物，可能是地理阻隔和人为选择造成的。

The shortcomings and the essentials of genetic algorithm are discussed. A novel genetic algorithm is proposed whose population is dynamic and whose crossover is anisomerous.

在分析实数编码遗传算法各操作步骤的实质和不足的基础上，提出了以提高算法柔性为目的、以动态种群和不对称交叉为主要特点的新型遗传算法。

The percents of RAPD amplified polymorphic loci for Lanceolaria grayana and Anodonta fluminea are lower than 40%;the intra-population Shannon's genetic diversity index is 0.1891 and intra-population genetic distance is 0.0708, and they are the lowest in all populations.

涨渡湖、宿鸭湖、都阳湖的褶纹冠蚌3个地理种群的多态座位百分率为622%~70.9%，Sh~on遗传多样性指数为0.3596~ 0.4041，种群内的遗传距离为0.1 540~0.1%9，3个种群之间的遗传距离为0.1931~ 0.2389，涨渡湖与宿鸭湖的种群之间有较近的亲缘关系。

The percents of RAPD amplified polymorphic loci for Lanceolaria grayana and Anodonta fluminea are lower than 40%; the intra-population Shannons genetic diversity index is 0.1891 and intra-population genetic distance is 0.0708, and they are the lowest in all populations.

涨渡湖、宿鸭湖、都阳湖的褶纹冠蚌3个地理种群的多态座位百分率为622%~70.9%，Sh~on遗传多样性指数为0.3596~0.4041，种群内的遗传距离为0.1 540~0.1%9，3个种群之间的遗传距离为0.1931~0.2389，涨渡湖与宿鸭湖的种群之间有较近的亲缘关系。4。

Molecular genetic data were used to investigate population genetic structure and differentiation of Pelophylax nigromaculata (Anura: Ranidae).

用分子遗传数据研究了黑斑侧褶蛙种群的遗传结构和分化。

Molecular genetic data were used to investigate population genetic structure and differentiantion of Pelophylax nigroaculata (Anura: Ranidae).

用分子遗传数据研究了黑斑侧褶蛙Pelophylax nigromaculata(Anura： Ranidae)种群的遗传结构和分化。

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。

Chimborazo and Cotopaxi, took me by the hand.

越过琴博腊索山和科托帕克西山。

This car is in a good condition.

这辆车的状况很好。