种质遗传

objectiveto keep the stability of issr_pcr and reliability of genetic diversity, sibship analysis and source assessing for aconitum carmichael dexb.

目的保证乌头issr-pcr的稳定性、提高对乌头遗传多样性，亲缘关系分析、种质鉴定的可靠性。

It is important to learn origin, evolution, spread of adzuki bean through research genetic diversity of adzuki bean germplasm resources.

研究野生小豆种质资源遗传多样性对了解小豆的起源、演化和传播途径具有重要价值。

Establishing a core collection of adzuki bean can simplify management and enhance utilization of genetic resources in adzuki bean research programmes.

构建小豆核心种质，不但能简化管理，而且可以提高遗传资源在小豆改良中的利用效率。

Allopolyploid played an important role in crop genetic and germplasm enhancement.

异源多倍体在作物遗传改良和种质创新中发挥着重要的作用。

The genetic diversity of 26 chestnut cultivars grown in Shandong was evaluated through 29 pairs of SSR primers. The aim was to reveal their genetic diversity and to exploit and make use of the germplasm of Castanea. mollissima.

利用29对SSR引物对26份山东主栽板栗品种进行遗传多样性分析，以了解山东板栗的遗传多样性分布情况，为种质资源的利用和开发提供依据。

So understanding the genetic diversity of Picea crassfolia is of significance to protect the germplasm resources and breeding work in the future.

因此了解青海云杉的遗传多样性对其种质资源的保护以及今后的遗传育种工作具有重大的指导意义。

The ISSR fingerprinting of 18 Japanese plum cultivars and 12 plum species or variety were established by using optimum system with primer 5"-9T-3"and 5"-9C-3", respectively. The identification rate of plum cultivars and species or variety was 100%. The effects of five important components on reaction of SSR were studied with Prunus salicina cv. Meilili. The results showed that the optimum concentration of five important components i.e. Tag DNA polymerase, Mg +, single primer, template DNA and dNTPs in 25 μL reaction system of SSR were 1.5u, 2.0mM, 0.8 μ M, 30~40ng and 0.16~0.24mM, respectively. The dendrograms of these cultivars was contructed according the Jaccard coefficient of similarity.

利用该优化体系，以5′-_9T-3′为引物，构建了中国李18个品种的ISSR指纹图谱，该引物可将这些品种完全区别开来；以5′-_9C-3′为引物，构建了李属6类种质资源的ISSR指纹图谱，该引物区分率为100％。4、中国李品种适宜的SSR反应分析体系是：25μL SSR反应体系中，Taq DNA聚合酶、Mg~(2+)、每个引物、模板DNA和dNTPs等5种成分的适宜浓度分别是：1.5u、2.0mmol·L~(-1)、0.8μmol·L~(-1)、30～40ng和0.16～0.24mmol·L~(-1)。5、采用RAPD、ISSR和SSR等三种分子标记技术对中国李品种资源54份和2个欧洲李品种进行了遗传多样性分析，并以品种间的遗传相似系数构建了Jaccard聚类树状图。

According to the principle of cladistics analysis, 16 main appearance characteristics were proceeded the numeric value coding , getting the multi-state numeric value coding matrix.

群体结构及遗传多样性的研究与保护对桑树种质资源的利用具有十分重要的作用。分子标记技术为研究植物种群间、个体间的遗传变异提供了有力的手段。

Gene diversity level of landraces at every locus was higher than that of the released cultivars.

各个位点上群体间分化系数均较小，表明三个省份的遗传多样性分化程度较低，三省份种质的遗传基础较为狭窄。

The genetic diversity of 76 waxy barley landraces from different region of China was assessed by SSR markers,and cluster analysis was done based on genetic similarity coefficient.

利用SSR标记对来自中国不同省市的76份糯大麦种质的遗传多样性进行分析，并以遗传相似系数为基础进行聚类分析。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。