种系

中国人vonHippel-Lindau综合征种系突变研究

Germ line mutations in Chinese kindreds with von Hippel-Lindau syndrome

事实上，在早期嵌合体的研究，实验结果表明，畸胎瘤细胞能够形成种系，并最终发育成成年小鼠。

Indeed , in early chimera studies , it was demonstrated that teratocarcinoma cells are able to contribute to the germ line , ultimately giving rise to adult mice .

结果表明该EG细胞系具有多能性，是否可以进入种系有待进一步验证。

This experiment shows this EG cell line is pluripotent , germline transmission remains to be confirmed .

在每个单独的根样中检测到2-7个AMF种系型。

Two to seven AMF phylotypes were detected from each individual plant sample .

这暗示伴随着鱼类的辐射式进化历程，可能发生了种系特异性的βactin的丢失。

The results that suggest lineage-specific β - actin loss might happen in the radical evolution of teleost fishes .

我们推测种系变异可促进MPN易感及表型多向性。

We hypothesized that germline variation contributes to MPN predisposition and phenotypic pleiotropy .

结论：建立了能实现种系传递的C57BL/6J小鼠胚胎干细胞系，该系的ES细胞可用于今后制备转基因动物和基因敲除动物。

Conclussion : We have obtained C57BL / 6J ES cell lines with a potential germ-line contribution , which can be applied to generate transgenic and gene knock-out mice .

【目的】PCR法扩增与测定白纹伊蚊和致倦库蚊的细胞内共生菌Wolbachia16SRRNA序列，分析其种系发生关系及传播方式。

Objective To amplify and analyze the Wolbachia 16S rRNA sequences from Aedes albopictus and Culex pipiens quinquefasciatus , and to analyze their phylogenetic relationship . I is presented . relation .

杂草稻又名杂草型稻或杂草种系，在美国又被称作红米（redrice），它广泛分布于温带、热带地区，甚至一些没有野生稻存在的地区，如美国、欧洲等地。

Weedy rice , which is also called red rice in USA , occurs in all the major rice growing areas in the tropics , even in the areas where no wild relatives of rice occur , such as the USA and Europe .

而种系嵌合体的获得是实现ES细胞途径的决定步骤，低的种系嵌合率则是制约ES细胞应用的关键。

The obtain of germline chimeras is the key of putting ES cells into practice , but the germline chimeric rate is low , which hampers the use of ES cells .

结果：2003~2005年6月共分离到乙型流感病毒22株，血清学鉴定结果除2株为Victoria系的毒株以外，其余20株均为Yamagata种系。

Results : 22 influenza B viruses were obtained from 2003 to June 2005 , including 2 of Victoria-lineage and 20 of Yamagata-lineage .

对阳性标本，采用RT-PCR扩增出SARS-CoV的M、N、S基因并测序，S基因序列和种系发生分析提示，该病毒与从广东省果子狸中分离到的SARS毒株最接近。

M , N and S genes were amplified by reverse transcriptase polymerase chain reaction ( RT-PCR ) from the positive samples . Sequencing results showed that they were SARS-CoV gene segments , and most closely matched SARS-CoV gene sequences were isolated from civet cats in Guangdong Province .

在此基础上，将J19株NSP4和NSP5的蛋白序列与其他轮状病毒蛋白序列进行比较分析和种系进化分析。

Ammo acid sequence comparison and phylogenetic analysis of NSP4 and NSP5 of J19 were made with the known proteins of other rotaviruses .

这里我们通过TMP-UV的方法，完成了国内第一个线虫基因突变库的构建，并在此基础上筛选出了第一个缺失突变的线虫种系sec-10突变体。

Here , we obtained the first C. elegans mutant library in China , and isolated a C-terminal truncated mutation of sec-10 by screening this library .

以上结果表明，在从低等脊椎动物到高等脊椎动物的进化过程中nov基因的表达也从低级中枢向高级中枢扩展，提示该基因的表达与脑的种系发育、脑功能的分化平行相关。

Our results indicated that nov gene is very conservative during the evolution of brain from lower vertebrate fish to higher vertebrate mammals , and the expression of nov gene coincided with the development and structure and function differentiation of brain .

但是药学实验的结果却能够推论出sec-10基因突变种系的突触后膜上受体过度敏感，我们推测是由于突触后膜上离子型受体以外的其他类型受体受到了影响。

However , the drug assay deduced the postsynaptic receptors are hypersensitive , which indicates some other kinds of receptors other than the ionotropic receptors are affected in sec-10 mutant .

其活化的CTL在20∶1效靶比时对抗原来源细胞株自身的杀伤率达75%以上，对同系细胞株的杀伤活性为35%-45%，对其它种系肿瘤细胞仅有微弱杀伤力（P<0.01）。

The killing activity of CTL at 20 ∶ 1 ratio of effective cells to target cells was more than 75 % to tumor cells , 35 % - 45 % to homologous cell line and weaker to other germ cell line ( P < 0.01 ) .

不同种系大鼠肺血管代谢功能的研究

Studies on Metabolic Function of Pulmonary Vessels in Rats of Different Strains

陆地棉半野生种系的细胞学研究

Cytological studies on semi - wild races of Gossypium hirsutum

基于核糖体基因分析的中华血吸虫分子种系发生研究

Study on Molecular Phylogeny of Schistosoma sinensium Based on Nuclear Ribosomal DNA

河南栽培植物野生种系及保护与利用研究

Study on the Wild Plant Resource in Henan and its Exploitation and Protection

不同种系大鼠小肠移植模型的建立及意义

Comparison and Significance of Various Rat Intestinal Transplantation Models

不同种系慢性缺氧大鼠肺血管反应性的研究

Study of reactivity of pulmonary vessel on chronic hypoxic rats in different strains

胚胎干细胞及种系嵌合体的研究进展

The Advance of Embryonic Stem Cells and Germline Chimeras

并未构成一个单系类群。本文还利用分支关系分析和讨论了真正柑桔果树群的种系发生关系。

The phylogenetic relationship of the true citrus trees is analysed and discussed .

河南省禽类隐孢子虫种类鉴定及分子种系发育关系研究

Research on Identification and Molecular Phylogenetic Characterization of Cryptosporidium from Poultry in Henan Province

辽河流域古代居民的种系构成及相关问题

Ethnic Composition of the Ancient Inhabitants in the Liaohe River Valley and Related Problems

在胚胎发育时期，原始生殖细胞形成并迁移至生殖腺，形成种系囊。

Mammalian primordial germ cells form and migrate to the gonad during embryonic development .

比炎症导致的融合细胞数目增加更复杂的是跨种系实验。

Even more intriguing than the inflammation-induced increase in numbers was a cross-species experiment .

一种系在颚下的帽子。

A hat tied under the chin .