查询词典 sequence

This study was to identify a novel HLA-DRB 1 allele in Chinese population by nucleotide sequence analysis.

本研究验证一个新的HLA等位基因DRB1*1462的核苷酸序列。

Macaca mulatta in the Taihang Mountain ; mandibles ; sequence of teeth ; allometry analysis

太行山猕猴；下颌骨；齿序；异速生长分析

During the postgenomics era the information about genomic sequence and gene functions provides a new foundation for evolutionary biology and ecology As the first whole-genome sequenced plant Arabidopsis thaliana and its wild relatives have played a critical role in understanding the evolution of genomics and speciation Both A halleri and A lyrata are closely related to the model species A thaliana A halleri ssp gemmifera occurs in northeastern China Japan and Taiwan; while its sister A halleri ssp halleri is mainly distributed in Europe Geographical barriers such as Tienshan Mountain Range isolate these intraspecific sisters Likewise A lyrata ssp kamchatica and ssp lyrata occur in East Asia and North America respectively Such distribution patterns seem to be consistent with allopartic speciation The comparison between ancestral and extant polymorphism by multilocus can be informative about the population genetics of speciation In this study we collected and analyzed DNA sequences of 98 genes from four wild relatives of A thaliana A halleri ssp gemmifera A halleri ssp halleri A lyrata ssp kamchatica and A lyrata ssp lyrata The ancestral states of these four species were compared to each other in terms of level of genetic variation However the ancestral species at the time of speciation were substantially more polymorphic than the extant geographical populations The observations are not fully compatible with speciation by strict allopatry At some species pairs parapatric speciation seems more reasonable in speciation of Arabidopsis The 98 gene sequences are also used for the congruence test between gene genealogy and species phylogeny Only 28 genes support the species phylogeny but there are 23 genes supports another major genealogy { lyrata} thaliana Based on the phylogenetic position change of A lyrata ssp kamchatica and Ks value for each species pair suggested the recent directional gene flow between A halleri ssp gemmifera and A lyrata ssp kamchatica

阿拉伯芥是第一个完成基因体定序的开花植物，其基因体资讯提供植物学研究的重要依据；在解析阿拉伯芥属物种的亲缘关系以及种化机制等重要的演化议题时，阿拉伯芥近缘的野生物种自然成了不可或缺的关键；跟阿拉伯芥近缘的物种包括A halleri及A lyrata，其中A halleri ssp gemmifera主要分布於中国东北、日本以及台湾，与近缘的A halleri ssp halleri其分布於欧洲隔著天山及大陆的障蔽，而A lyrata ssp kamchatica主要分布於东北亚及台湾，与分布於北美五大湖的A lyrata ssp lyrata被北极圈所分隔，这样的分布模式暗示异域种化的可能。藉由多基因分析比较祖先物种与现生物种遗传歧异度的相关可提供讯息探讨种化时期的族群遗传结构，本研究针对A halleri ssp gemmifera、A halleri ssp halleri及A lyrata ssp kamchatica、A lyrata ssp lyrata四个物种，两对互为亚种的姊妹群，以阿拉伯芥为外群进行研究，在四个物种完成98个同源基因的分子序列，利用套装软体MCMCcoal来估算祖先物种的遗传变异，亦估算现生物种的核苷酸歧异度，观察到？多物种配对中祖先物种遗传多型性大於现生物种DNA歧异度，显示异域种化模型并无法完全解释阿拉伯芥属物种的种化模式，在某些物种配对间邻域种化模式应比异域种化更为可能；在基因树与物种树的比较，98个基因片段的亲缘模式只有28个是与已知物种树一致的，有23个基因其树状图支持{ lyrata} thaliana的型式，藉由kamchatica位置的变化以及估算各物种配对间的平均同义置换率，推测在A halleri ssp gemmifera与A lyrata ssp kamchatica间具有近代的单方向基因交流。

These DNA sequence changes might contribute to the rapid evolution of the newly formed allopolyploid and allow the divergent genomes to act in harmony.

杂种后代DNA序列的这种变化可能有利于新形成异源多倍体小麦的快速进化、遗传协调和遗传稳定性。

By means of classification, generalization and comparison, the paper makes a deep exploration into the formation, parts of speech of disyllables and creation of allotropy in order to unveil some characteristics of disyllables concerning formation, meaning, parts of speech and word sequence.

本论文运用分类、归纳、比较等方法，对并列复合词的生成方式和词性，特别是对同素词的产生作了深入细致的研究，揭示晋代并列复合词在构词、词义、词性以及词序上的一些特点。

On top of that, In this design , the hardware connection and software program of the Phase Sequence allotter are design and elucidation respectively.

此外，本次设计还分别对相序分配的硬件接线和软件程序部分做了设计和说明。

After a while the action director allusively told me that they misunderstood my meaning. They thought that I wanted the action sequence to have me falling down; hence they placed the wire that way.

过了一会，武术指导婉转地跟我说，他们误会了我的意思，听错了这个动作是往下跌，故此放了一半安全钢线。

The conceptions of spectral and module of almost periodic sequence in Banach space are introduced,which are similar to those of almost periodic function in Banach space.

引入了Banach空间中与概周期函数类似的概周期序列谱与模的概念，并证明了概周期序列的谱与模有与概周期函数谱与模一样的性质。

Zhang proposed pseudo almost periodic function and pseudo almost periodic function sequence.

张传义教授提出了伪概周期函数和伪概周期序列。

A sequence of 8 bits enough to represent one character of ''.'alphanumeric'.

一个可处理为独立信息单元的八位序列（足以代表一个字母数字''。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。