序列性

Chapter 5 and 6 are concentrated on the fundamental problem how to con-struct finite-dimensional and infinite-dimensional Liouville integrable Hamiltonsystem.Starting from two isospectral problems,Tu's scheme is applied to gen-erate the corresponding CKdV hierarohy and coupled Burgers hievachy,andthey are shown to be Liouville integrable Hamilton systems.Two spectral prob-lems,which contain three and four potentials respectively,are also studied byTu's scheme.Two new Liouville integrable Hamilton hierarchy are estab-lished.A new general approach using Lenard's gradient sequence is presentedto obtain Lax integrable hierarchy and their zero curvature representation,andsome examples are given.The nonlinearization procedure is applied to theeigenvalue problem of coupled Burgerrs hierarchy.It is shown that underBargmann constraint,the spatial part of the Lax pairs is nonlimearized to be afinite-dimensional Liouville completeiy integrable Hamilton system.

第五、六章研究如何从一个谱问题出发构造可积发展方程族及其零曲率表示、Hamilton结构和判断Liouville可积性：通过对二类具有2个位势的等谱问题直接研究，利用屠格式生成了耦合KdV族和耦合Burgers族，并证明它们均为Liouville可积的广义Hamilton方程族；而通过分别具有3个和4个位势的等谱问题，遵循屠格式构造了二族新的Liouville可积的广义Hamilton方程族；给出了利用Lenard梯度递推序列产生发展方程族及其零曲率表示的一种方法，作为应用，讨论了CKdV族，BPT族及耦合Burgers族的产生及其零曲率表示；应用非线性化技巧，证明了在Bargmann约束下，耦合Burgers族的Lax组可被线性化为Liou-ville完全可积的Hamilton系统。

The species have the highly homogenous sequence in the ITS, while the numbers of the different bases is from 94 to 100 in pairwise comparison with the genus Lepidium. So the outgroup, Lepidium, is appropriate in our study.

与外类群相比，菘蓝属属内分类群的序列间具有更高的同源性，菘蓝属各类群与独行菜属外类群的遗传距离均很大，碱基差异在94～100个，说明本实验以独行菜属植物作外类群是合适的。

The GA20 oxidase in Zoysiagrass shared 55%-73% homology with wheat, barley, Oryza sativa and Lolium perenne.

与小麦、大麦和水稻中的GA20氧化酶基因的核苷酸序列有55％-73％的同源性。

A comparison of the homologous DNA-sequences of our 6 species (belonging to 4 genera of the family Lycosidae) to 2 relative Chinese species of Lycusidae from GenBanlc is depicted based on analysis of the 12S rDNA in this paper.

将自测的我国蜘蛛目狼蛛科4属6个种和从互联网GenBank中检索到相关物种的线粒体基因组12S rDNA的序列进行同源性比较，计算核苷酸使用频率。

These results demonstrated that BmCPV,DsCPV and LdCPV were homologous as classfied in the same electropheres type I,and that this RT\|PCR assay could be used for early,rapid,sensitive and specific detection of DsPCV infection in the natural population of the pine moth,due to the apparent different feeding habits of Bombyx mori,Dendrolimus ssp.and Lymantria dispar larva each other and the no infection of BmCPV and LdCPV to Dendrolimus ssp.

由于松毛虫与家蚕、舞毒蛾相互之间食性不同，而且BmCPV和LdCPV对松毛虫无感染性，即在松毛虫体内不会有BmCPV病毒和LdCPV病毒的感染，因此该结果一方面从分子水平上证实了DsCPV与BmCPV、LdCPV存在基因同源性，同时也表明了依据BmCPV的基因序列设计引物对DsCPV基因组核酸建立的RT-PCR扩增体系，可以作为松毛虫种群中DsCPV的一种敏感、特异、早期、快速的检测手段。

According to one conserved sequences of phage GIL01 from Bacillus thuringiensis,a pair of primers was designed.With overnight cultivations of 35 B.t standard strains and one fermentative strain MZ1 as templates,PCR results showed that 16 strains,which may be lysogenic strains,produced the product with the size about 750 bp as anticipated.

根据苏云金杆菌(Bacillus thuringiensis， B.t)溶原性噬菌体GIL01(GenBank Accession Number： AJ536703)的同源序列设计一对引物，用35株B.t标准菌株和生产菌株MZ1(血清型H3a3b)的过夜培养物作模板，结果有16株菌株包括MZ1能扩增出大小约为750 bp的预期产物，推测这16株菌为溶原菌。

The DNA sequences around the transposon inserted site were also amplified by inverse PCR and sequenced. Multisequence alignments showed that the mutated genes were highly similar to the malonyl coenzyme A transacylaseg gene, lipopeptide synthetase B gene and sensor histidine kinase gene, respectively.

反向PCR克隆转座插入位点周边序列及测序结果表明，转座突变的基因与编码脂肽类化合物合成和调控相关的malonyl coenzyme A transacylase、lipopeptide synthetase B和sensor histidine kinase蛋白基因具有高度同源性。

Support for an expanded family concept of Malvaceae within a recircumscribed order Malvales: a combined analysis of plastid atpB and rbcL DNA sequences.

另外，在DNA序列简约性分析中，某些分支会出现错误，这种情况至少在趋异比较大的类群中出现，而且没有其他信息可以帮助得知这些错误究竟出在何处[11， 47]。

In general, overall nucleotide sequence identity between two distinct viruses are less than 89%, and strains of virus must have sequence identity greater than 89%, so VA2 is a distinct begomoviruses. In accordance with the revised proposal for naming geminiviruses, we propose to name VA2 as Malvastrum yellow vein virus.

根据&双生病毒科病毒全基因组核苷酸序列同源性小于89％，往往定名为不同病毒；大于89％，则认为是同一病毒的不同株系&这一原则，VA2为双生病毒的一种新种，根据病毒分类委员会命名原则，我们将该病毒命名为赛葵黄脉病毒，英文名为Malvastrum yellow vein virus，简称MYVV。

The partial fragments shared the highest nucleotide sequence identity(90%-93%) with the previously reported Malvastrum leaf curl Guangdong virus.

这些DNA片段与已报道的广东赛葵曲叶病毒(Malvastrum leaf curl Guangdong virus，MLCuGdV)的核苷酸序列同源性高达90%~93%。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。