一种基于手动芯片点样仪的快捷高效的转基因植物PCR-dot-blot鉴定法

本论文报道一种快捷高效的PCR—dot—blot新方法．该方法利用手动芯片点样仪将微量PCR产物（约100pgDNA）点样,并采用North2 South Biotin Random Prime DNA Labeling and Detection Kit（PIERCE）完成快速斑点杂交．通过鉴定转基因烟草证明这种方法是可行而有效的．这种新方法节省材料,效率极高,特别适合大批量鉴定转基因植物．     

转基因产品的检测方法

基因工程技术的飞速发展使转基因生物正在向产业化发展,而有效管理转基因产品的前提是对产品进行转基因成分的准确检测,本文简要介绍了转基因产品的发展概况以及转基因产品的检测研究现状。gus基因可测定外源基因的表达部位,因而被认为是首选的报告基因;PCR扩增方法快速简便;Southern杂交特异性强,可以检测外源基因的整合情况,是当前鉴定转基因产品的权威方法;Western杂交结果与性状表现有直接关系。     

二花脸猪染色体的G－带、C－带研究

以二花脸猪为材料，采用外周血淋巴细胞短期培养及Ｇ—带、Ｃ—带技术对其体细胞染色体进行分带研究．结果表明，不同细胞在Ｇ—带带型上呈现出带纹宽窄和染色深浅的变化，但每一对同源染色体及Ｘ、Ｙ性染色体都有其特殊的Ｇ—带核型；而Ｃ—带带型呈现出异形性；本文同时还分析了Ｃ—带异形性对品种鉴别的意义     

转基因植物药物的开发研究评述

基因工程的完善与发展为利用转基因植物作为生物反应器来开发与生物转基因植物药物提供了可靠的技术基础，目前已利用转基因植物作为反应器生产出了多种转基因植物药物，其中包括多种药品和疫苗，已有的转基因植物药物的临床实验及国内外的应用表明转基因植物药物安全是可靠的，随着表达效率和遗传稳定性的不断提高，转基因植物药物的开发研究将会在21世纪得到更大的发展。     

太湖猪淋巴细胞和小鼠骨髓瘤细胞杂交细胞的建立

以我国优良猪种小梅山（属太湖猪种）的脾淋巴细胞和小鼠骨髓瘤细胞（ＳＰ２／０）作亲本，经聚乙二醇（ＰＥＧ）促融，ＨＡＴ培养基选择培养，先后得到２５株杂种细胞，并对杂种细胞进行染色体分析和同工酶电泳等研究。结果显示，杂种细胞系含有全部小鼠骨髓瘤细胞染色体，而猪染色体丢失迅速，仅保留猪的４号、５号、７￣１０号、１２号、１３号、１５号和１７号等部分染色体，杂种细胞内能检测到全部小鼠同工酶活性，但仅能检测到     

生物工程与现代农业

介绍了世界农业面临的形势与任务，论述了生物工程技术在农业领域应用研究进展，并对我国未来农业发展进行了展望，提出了建议。     

速眠新Ⅱ与戊巴比妥钠对实验用白香猪麻醉效果的观察

目的观察速眠新Ⅱ对实验用白香猪的麻醉效果。方法将30头成年实验用白香猪随机分为三个组,A组为速眠新Ⅱ组,B组和C组为速眠新Ⅱ和戊巴比妥钠不同比例复合麻醉组。观察诱导期、维持期、苏醒期,监测动物体温、呼吸频率和心率。结果A、B、C三个组的诱导期分别为(11.4±7.85)min(、122.7±42.82)min和(47.8±46.04)min;维持期(5.7±2.51)min(、104.4±27.68)min和(85.9±92.64)min;苏醒期分别为(4.7±2.83)min(、122.8±19.5)min和(102.1±59.62)min。三组动物体温从给药开始至苏醒在总体上均呈下降趋势;三组动物的呼吸频率均表现为给药后10 min至90 min缓慢升高、在苏醒期略下降的规律性变化;三组动物心率从给药开始至苏醒均在持续下降。结论实验用白香猪对速眠新Ⅱ的耐受高,单纯使用速眠新Ⅱ和与戊巴比妥钠复合使用能获得满意的麻醉深度。     

转APX基因烟草抗旱能力研究

用毛白杨中克隆得到的抗坏血酸过氧化物酶(APX)基因,构建植物表达载体pBI121-APX,将pBI121-APX载体用农杆菌介导法转化烟草,成功得到转基因烟.PCR、PCR-Southern的结果表明,APX基因已经成功的整合到转基因烟草基因组中.干旱实验结果表明,与对照相比较,转基因烟草表现出较强的抗旱性.     

Review and prospect of transgenic rice research

Rice is one of the most important crops as the staple food for more than half of the world＇s population. Rice improvement has achieved remarkable success in the past half-century, with the yield doubled in most parts of the world and even tripled in certain regions, which has contributed greatly to food security globally. Rapid population growth and economic development pose a constantly increased food requirement. However, rice yield has been hovering in the past decade, which is mainly caused by the absence of novel breeding technologies, reduction of genetic diversity of rice cultivars, and serious yield loss due to increasingly severe occurrences of insects, diseases, and abiotic stresses. To address these challenges, Chinese scientists proposed a novel rice breeding goal of developing Green Super Rice to improve rice varieties and realize the sustainable development of agriculture, by focusing on the following 5 classes of traits： insect and disease resistance, drought-tolerance, nutrient-use effi- ciency, quality and yield potential. As a modern breeding approach, transgenic strategy will play an important role in realizing the goal of Green Super Rice. Presently, many transgenic studies of rice have been conducted, and most of target traits are consistent with the goal of Green Super Rice. In this paper, we firstly review technical advances of rice transformation, and then outline the main progress in transgenic rice research with respect to the most important traits： insect and disease-resistance, drought-tolerance, nutrient-use efficiency, quality, yield potential and herbicide-tolerance. The prospects of developing transgenic rice are also discussed.