种质

This paper deals with in vitro conservation of germplasm of Calamus egregius Burret.

本文对短叶省藤种质的离体培养保存进行了探索性研究。

In order to direct the construction of plant germplasms by elucidating the relatives among plants at the level of gene, CYP86MF gene analogues from 11 species of 6 genera in Cuciferae were respectively obtained by PCR strategy using gene specific primers designed from conserved regions of CYP86MF gene reported. Sequence comparisonindicated that the similarities among the genes at nucleotide level were over 80%, and the similarities at amino acid level remained above 70%. The differences between the genes at nucleotide and amino acid level between species were 1.0%~ 5.7% and 2.6%~ 7.3% respectively, while those between genera 5.6%~ 22.5% and 7.3%~ 31.2%, respectively. Phylogenetic analysis showed that Brassica was closely related to Raphanus, followed by Rorippa Scop, Arabidopsis Heynh, Capsella Medic orderly, most distantly related to Orychophrogmus.

为了从分子水平阐明十字花科植物间的亲缘进化关系，给植物种质资源的创建提供理论依据，试验根据课题组已报道的CYP86MF基因编码的氨基酸保守区域设计特异引物，运用PCR技术分别从十字花科6个属11个物种中分离克隆到了CYP86MF基因的同源序列，经比较分析，结果表明：这些同源序列的相似性达80%以上，所推导的氨基酸序列相似性达70%以上，且两者种间差异分别为1.0%~ 5.7%和2.6%~ 7.3%，属间差异分别是5.6%~ 22.5%和7.3%~ 31.2%；由氨基酸序列构建的分子系统树可知，在亲缘进化关系上芸薹属与萝卜属较近，其他依次为蔊菜属、拟南芥属、荠菜属，而与诸葛菜属最远。

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。

Based on the survey and preexisting data, this paper deals with with the distributions, the characteristic of vertical distribution and horizontal distribution and habitat of Chimonanthus germplasm in China.

根据对中国蜡梅属种质资源的调查，结合已有资料，重点阐述了中国蜡梅属植物的地理分布、水平和垂直分布特点及其生境特点。

Somaclonal variation of red-seed watermelon (Citrullus lanatus ssp. vulgaris var. megalasperrnus Lin et Chao) was used in selecting in vitro of the germplasm resources resistant to Fusarium wilt under the stress of Fusarium acid.

以籽用西瓜中信1号红籽瓜不定芽为筛选材料，利用镰刀菌酸(Fusarium acid， FA)为胁迫剂，进行红籽瓜抗枯萎病无性系变异体离体筛选技术和红籽瓜种质资源抗病性鉴定的研究。

Objective: To detemine the genetic diversity of Coptis chinensis . Method: 32 germplasmic resources of C.

中文摘要：目的：进行黄连 Coptis chinensis 种质资源的遗传多样性研究。

According to the analysis of the main nutrition contents in 70 Cucurbita moschata,the average coefficient of variation was 31.70%.

通过对70份中国南瓜种质材料的主要营养品质的分析得出，各品质性状在不同材料之间表现出了不同程度的多样性，平均变异系数为31.70％。

In this study,70 genotypes of Cucurbita moschata collected from different agro-ecological zones of China were analyzed for genetic diversity,based on the morphological and RAPD markers.

本研究利用形态学标记和RAPD分子标记同时对70份来自我国不同地区的中国南瓜种质进行遗传多样性和亲缘关系分析。在所观察的56个有差异的农艺性状中，变异系数从6.60%~262.22%，平均变异系数为37.50%。

A total of 56 agronomic traits were measured, 31 quantitative and 25 qualitative,for assessing genetic diversity of 70 Cucurbita Moschata germplasm.

对农艺性状的遗传多样性参数统计分析结果显示，所观察的56个(包括31个数量性状和25个质量性状)在不同种质间均有差异的农艺性状中，变异系数从6.60％到262.22％，平均变异系数为37.50％。

Cynodon dactylon perennial grass, distributoing widely in the world, with abundant variation, was an important turfgrass germplasm resource.

狗牙根为多年生草本植物，世界上分布极广，具有丰富的遗传变异，是宝贵的草坪草种质资源。

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％。