遗传特性

The results suggested that the hypovir-ulence - associated genetic elements existed in the cells of isolate Ep- 1PN unequally, andsome cells were shortage of the hypovirulence- associated genetic elements.1572 sexual progenies of isolate Ep- 1PN were obtained through single- ascospore -isolation from seven apothecia.

本文对核盘菌Ep-1PN菌株的弱毒特性及其相关特性的遗传特点进行了分析，并评估了Ep-1PN菌株及其弱毒因子防治菌核病的生防潜能，现将结果报道如下

Inthis work, by using the boundary element method and the joint theory, thewhole machine structure is equivalently modeled by beam elements and spring elements,the corresponding whole machine static model is constructed and the basic propertyparameters of the unit surface of the joints are introduced. The analysis software of thewhole machine static feature is worked out. The optimal design method based on thegenetic algorithm is proposed with the whole machine structure of multiple variablerestrains the optimal design software is developed as well.

本文运用边界元方法和结合部理论，将机床整结构用梁单元和弹簧单元进行等效，并建立相应的整机静力学模型，引入了结合面基础特性参数；编制了相应的整机静态特性解析软件；然后针对多变量约束的机床整机结构提出了用遗传算法进行优化设计的方法，并且编制了相应的优化计算软件。

The improved line persist the main agronomic trait and combining ability of 93-11, show wide spectrum to Xoo strains and enhanced resistance to BB and stem borer. Thus, this line has good prospect in future practical use.

这一遗传改良材料在农艺性状和配合力等方面基本保持了93-11及其杂交组合的主要特征特性，拓宽和增强了其对白叶枯病的抗谱和抗病能力，增加了93-11作为恢复系所配杂交水稻的抗螟虫特性，具有较好的应用前景。

Enterobacter aerogenes was irradiated by He-Ne laser to optimize the laser mutagenesis condition, and to test the heredity, aciduric and hydrogen-producing potential of the mutant. An aciduric mutant with steady hydrogen-producing capability, which was able to grow at acidic pH of 3.0, was obtained. Its capability of hydrogen production was measured in the batch culture experiment.

闻建平，陈宇，刘铭辉(天津大学化工学院生物工程系，天津300072)摘要：运用He—Ne激光辐照产气肠杆菌，对激光诱变参数进行优化，考察了突变株的遗传稳定性、耐酸性和产氢特性结果筛选到一株遗传性状稳定的高产氢突变株，具有良好的耐酸性，在pH值3.0 时仍能生长。

In the present paper,the inheritance,morphological and anatomical char-acters,physiological and biochemical characteristics,the shoot and leaf growinghabit of the curly dwarf mutant "Zha′ai 76"from Malus baecata,and the re-productive charateristic of"Pingyi Tiancha"an apomictic type of Malus hupe-hensis,are systematically studied.

本文对山定子皱叶矮生型突变系&扎矮76&的遗传、形态、解剖、生理生化、枝叶生长等特性和苹果属无融合生殖类型平邑甜茶的生殖特性进行了系统研究，并探索了通过两种资源的杂交选育种子繁殖的苹果矮化砧品种的可能性，获得以下结果

In this study, nine aspects had been carried out, which included the condition optimization of inducing silkworm asexual reproduction; the effective technique of obtaining unfertilized eggs from virginal moth; the investigation of asexual reproductive genetic resources on bivoltine silkworm races; the creating of bivoltine female asexual reproductive lines; the genetic effect analysis of silkworm asexual reproductive character; the eggs protein study on different female lines; growing and developing comparison between asexual reproductive line and its sexual parent; RAPD study on asexual reproductive character; the utilization of asexual reproductive lines.

本论文主要研究内容包括：家蚕无性繁殖诱导条件的优化；从家蚕处女蛾获取未受精卵的实用技术研究；二化性家蚕品种无性繁殖特性的遗传资源调查；二化性雌蚕无性繁殖系的构建；家蚕无性繁殖性状的遗传效应分析；家蚕无性繁殖品种的蛋白质研究；家蚕无性繁殖品种与其两性亲本生长发育对比研究；控制家蚕无性繁殖性状的基因的RAPD分子标记探索以及家蚕无性繁殖系的利用研究等九个方面，取得的主要结果如下

There was no cross resistance between chlorate and MBC in G. zeae. Therefore, the nit can be used as gnetic marker for study the genetics of MBC resisance in homothallic fungus G.

因此，可用nit作为遗传标记，研究具同宗配合特性的玉蜀黍赤霉对多菌灵的抗药性在有性重组过程中的遗传与变异。

According to cytology, biology, oil chemical characteristic and castor-oil plant's physical and chemical properties, it surveys both domestic and international research on the progress and development of castor-oil plant hereditary improvement, hybrid vigour utilization and comprehensive utilization.

研究立足于蓖麻遗传多样性及其植物质能的综合利用潜势，根据蓖麻雌雄同株的细胞学、生物学和油脂化学特性和毒蛋白的物化性质，综述国内外有关蓖麻生物学、遗传育种、杂种优势及综合利用的进展与研发前景。

Stamped into the very fiber of the Senate, within its genetic code, was the same contest between power and principle that characterized America as a whole, a lasting expression of that great debate among a few brilliant, flawed men that had concluded with the creation of a form of government unique in its genius—yet blind to the whip and the chain.

参议院的本质特性，存在于它的&遗传密码&中，即是，从整体上描述了美国特性的，在权力和原则之间相同的斗争，是少数才华横溢的但有瑕疵的人的绝妙的争论的一个持久的表达方式，这些人用他们独一无二的才智创造出了一种政府运作形式（但却忽视了监督和约束的力量）。

The selective behaviour, fitness, cause formation and population differentation of the cotton aphid''s host biotype were studied on this project. The results showed that the cotton and cumbrits biotype aphid were existed in natural population in Nanjing .

本项目研究了南京地区棉蚜对寄主的选择与适应性、寄主专化型的成因、寄主专化型蚜在DNA水平上的多态性及棉蚜迁飞特性的种群分化、迁飞型种群的遗传响应与杂交遗传。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。