遗传性状

Furthermore, the experiences of artificial breeding and farming showed that different geographical populations of Meretrix clam are also substantially different in growth rate and the ratio of shell weight to soft-body one.

由于我国海岸线漫长、地形复杂，因长期地理隔离和生境不同，导致不同海域的文蛤在壳表形态和颜色、花纹图案等外观特征上均存在显著差异；另外，从多年的养殖实践中也发现，我国文蛤不同地理群体在生长速度、壳肉重比率等重要经济性状上也存在着显著差异，而这些性状的稳定性差异必然依赖于其分子遗传结构的变异。

When the oppositifolious character is in different genetic background, the process and efficiency of orientational selection is different.

通过F4代的26个转育的对生自交系进行对生性状的连续10代定向选择，以及三种不同的组配方式（对生×互生、对生×对生、互生×互生）对对生率的影响的研究，结果表明：连续定向选择是获得稳定对生系是一种有效的技术途径，对生性状在不同的遗传背景下，其定向选择的进程和效率是不同的。

181 seedlings of 8 strawberry cross combinations were used to study the inheritance trend of main fruit quantitive characters.

对8个草莓杂交组合F-1的181个株系的果实主要数量性状进行了测定和统计分析，研究和探讨了草莓果实主要数量性状的遗传倾向。

The leaf area, single leaf fresh weight, flavone content and lactone content in good variety were 2.04, 2.71, 2.05 and 2.17 times of those in common variety respectively. There were no obvious difference between the female and staminiferous plants in leaf output character, flavone content and lactone content, which proved that there were hereditary change among the gingko variety in leaf output character, flavone content and lactune content.

较好品种的叶面积、叶重、叶黄酮、内酯含量分别是较弱品种的2.04、2.71、2.05和2.17倍；雌雄株间叶产量性状、黄酮含量、内酯含量无差异，证明银杏品种或类型间叶产量性状、黄酮、内酯含量均存在遗传变异，这种变异与雌雄株无关。

The polymorphisms of chicken heart type fatty acid binding protein gene and extracellular fatty acid binding protein gene were detected by PCR-SSCP method with different pairs of primers among 228 chickens from 8 populations (including 5 pure lines and 3 crossbreds developed by Sichuan Animal Science Academy and Dahen Poultry Breeding Company).

本试验以四川省畜牧科学研究院和大恒家禽育种有限公司共同培育的优质肉鸡(共240只)为研究对象，对H-FABP基因和EX-FABP基因的PCR-SSCP遗传多样性进行了研究，同时结合测定的生产资料，分析不同基因型与屠宰性状和肉质性状的相关性。

The experiment was conducted to analyze and evaluate the agronomic trait of germplasm resources and genetic diversity of hardein from 50 barleys by 8 agronomic trait and acidic poly acrylamide gel electrophoresis.

为给新疆大麦种质资源的开发利用和今后新疆大麦高产优质新品种的选育提供依据，根据大麦的8个农艺性状表现，采用酸性聚丙烯酰胺凝胶电泳对国内外50份大麦种质资源的农艺性状和醇溶蛋白的遗传多样性进行了分析评价。

Based on brief introduction of nutritional components,development,and genetic control of endosperm,it is reviewed on a serial of novel mutations,such as the waxy,dull,misty,sugary,shrunk,floury,low amylose,high amylose, low paste viscosity,high resistant starch,low glutelin content,protein body absent,high iron,low phytic acid endosperms and gene locations of the related mutated characters.

本文在简要介绍胚乳的发育、组成及品质性状遗传的基础上，综述了与淀粉、蛋白质和微营养相关的系列胚乳突变及相关性状的基因定位。胚乳突变主要包括糯性、暗色、云雾状、糖质、皱缩、粉质米、低直链淀粉、高直链淀粉、低粘滞性、高抗性淀粉、低水溶性蛋白、蛋白体缺失、高赖氨酸、高铁、低植酸等方面。

A referencing flock comprsing eight paternal half-sib families totaling 374 individuals from Liangshan semi-fine wool sheep was utilised to analyze the allele frequency, polymorphism information content and heterozygosity of nine microsatellite from 2~ chromosome of sheep genome.And the research based on the daughter design to locate the putative QTL affecting wool traits was carried out in the linkage framework-mapping of 2~ chromosome.

本研究利用凉山半细毛羊的8个父系半同胞家系共374个个体，分析了绵羊基因组2号染色体上9个微卫星标记的等位基因频率、多态信息含量和群体杂合度，利用已构建的凉山半细毛羊2号染色体遗传连锁框架图谱，采用女儿设计对影响凉山半细毛羊8个羊毛性状的数量性状位点进行了定位研究。

This thesis with lie to lead to acquire through the agriculture rod bacteria of turn the gene paddy rice T0 and a seeds in order to experiment the material, the adoption PCR examination and Southerns are miscellaneous to hand over the examination to combine together of method, pass the examination conversion plant posterity in the HPT( the Hygromycin phosphotransferase) gene, study the outside source gene in turn the gene paddy rice posterity of separation circumstance and heredity stability;Pass the influence to a form of form of the conversion plant carries on statistics to learn the analysis, studying the outside source gene to the conversion the sex form of plant.

本论文以通过农杆菌介导获得的转基因水稻T0和T1代种子为试验材料，采用PCR检测和Southern杂交检测相结合的方法，通过检测转化植株后代中HPT基因，研究外源基因在转基因水稻后代中的分离情况和遗传稳定性；通过对转化植株的表型性状进行统计学分析，研究外源基因对转化植株的性状的影响。

While among genetic indexes of samaras, obvious differences existed in repetition, heredity variance, selection difference, selection response, selection intensity and heredity gain.

对高产胶优良无性系各遗传参数进行分析表明，杜仲果实各形态性状和生长结果性状均具有较高的重复力。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。