查询词典 polymorphism

Y type HMW GS ; Genetic polymorphism ; Common wheat ; Spelt wheat ; Triticum compactum

y型高分子量谷蛋白亚基；遗传多态性；普通小麦；斯卑尔脱小麦；密穗小麦

A special PCR primer was used to investigate polymorphism of y type high molecular weight glutenin subunit genes in common wheat, spelt wheat and Triticum compactum.

采用PCR方法对普通小麦、斯卑尔脱小麦及密穗小麦在Glu A1、Glu B1和Glu D1位点上 y型高分子量谷蛋白亚基基因的多态性进行了分析。

The levels of drought tolerance and nucleotide polymorphism at CBF4 locus in a worldwide sample of 17 core accessions of Arabidopsis thaliana were examined. The results showed that different accessions had quite difference in adaptation to drought stress.

以生长于不同生态气候条件下的17个拟南芥核心生态型为材料，分析了它们的相对抗旱性和抗旱转录因子CBF4 基因的单核苷酸多态性。

Methods The mutations in blood corpuscle mitochondrial DNA T2DM without consanguinity and controls were determined by polymerase chain reaction-restriction fragment length polymorphism.

采用聚合酶链反应-限制性片段长度多态性法对无血缘关系的糖尿病患者及正常对照个体的血细胞线粒体DNA进行突变分析。

Polymorphism was detected for exon 3 of BMP4 gene in four sheep breeds. For exon 3, three genotypes were detected in four sheep breeds. In Small Tail Han, Chinese Merino, Corriedale and South African Mutton Merino sheep, frequency of genotype AA was 0.017, 0.216, 0.115, 0.429, frequency of genotype AB was 0.102, 0.317, 0.269, 0.500, frequency of genotype BB was 0.881, 0.467, 0.616, 0.071, respectively. Sequencing revealed one singlenucleotide mutation C→A at 305 bp of exon 3 of BMP4 gene in genotype BB in comparison to genotype AA, and this mutation resulted in an amino acid change of alanine→aspartic acid.

对于外显子3的引物，在4个绵羊品种中都检测到3种基因型；统计结果表明：小尾寒羊、中国美利奴绵羊、考力代绵羊、南非肉用美利奴绵羊AA基因型频率分别为0.017、0.216、0.115、0.429，AB基因型频率分别为0.102、0.317、0.269、0.500，BB基因型频率分别为0.881、0.467、0.616、0.071；测序结果表明：BB型和AA型相比在BMP4基因外显子3第305位碱基处发生C→A的突变，该突变导致氨基酸由丙氨酸改变为天冬氨酸；BB型小尾寒羊平均产羔数分别比AB型和AA型多0.61只（P.05）和1.01只（P.05）。

By using the Neighbor-joining method, a dendrogram was obtained based on genetic distances. The bootstrap values were evaluated for each crunode of the dendrogram by means of bootstrap test. The results showed that the mean heterozygosity of the whole native egg-typing duck breeds population was lower than those of native chicken breeds and goose breeds, suggesting that the genetic diversity in those duck breeds population is relativly rare and should be strengthened. The rank of the heterozygosity was consistent with that of the polymorphism information content. The results of the genetic distances between them indicated that the differentiation occurred long time ago. In the dendrogram, Weishan pocked, Youxian pocked, Huainan pocked, Guangxi pocked and Jingjiang pocked were classified into one goup, Chaohuand Enshi pocked were the second group, Liancheng white, Putian black, Jinding, Shanma, Sansui and Shaoxing were the flnra grong.

结果表明：我国所有蛋鸭品种全部群体的平均杂合度较低，其遗传多样性相对贫乏，各保种场要加强多样性的保护；各品种的平均多态信息含量的高低与群体平均杂合度的顺序完全一致；遗传距离的计算说明了13个品种的遗传距离较远，分化时间较长；13个地方蛋鸭品种被聚类为3个类，微山麻鸭、攸县麻鸭、淮南麻鸭、广西小麻鸭、荆江麻鸭聚为一类；巢湖鸭和恩施麻鸭聚为一类；福建省的鸭种连城白鸭、莆田黑鸭、金定鸭、山麻鸭与三穗鸭、绍兴鸭聚为一类。

ROSA A,CUESTA MJ, FATJó VM,et al.The Val66Met polymorphism of the brainderived neurotrophic factor gene is associated with risk for psychosis:Evidence from a familybased association study.

许多动物研究表明，BDNF通过前脑胆碱能神经系统［8］、调节突触传递易化长时程增强效应（longterm potentiation，LTP）［9］对学习记忆发挥作用。

Methods The deletion and mutations of exon5, 8 of FHIT gene were detected in 10 cutis primary T cell lymphoma samples tissues by polymerase chain reaction and single-strand conformation polymorphism methods.

用PCR-SS-CP法检测了10例原发性皮肤T细胞淋巴瘤患者皮损FHIT基因外显子5和8的缺失和突变状况，10例健康皮肤组织做对照。

The overall estimation of the MHC polymorphism in the Chinese alligator population was higher than those in mammals and in cyprinid fish.

分析了取自安徽宣城野生种群、安徽省扬子鳄繁殖研究中心和浙江长兴养殖种群的14条扬子鳄MHCⅡ类B基因第3外元的多态性。

Human cytochrome P450 enzymes have been studied entensively about their polymorphism in recent years.

近年来，对细胞色素P450氧化酶与药物氧化代谢多态性的关系进行了研究。

The two-acre Dunbar Community Garden in Little Rock has served as a model for several years.

几年来，坐落于小石城，占地两英亩的邓巴社区菜园树立了一个标杆。

Jerry points to the jacket hanging in the bathroom. It's ruined, and unwearable What?

杰瑞指着洗手间里挂着的夹克，毁了，不能穿了）什么？