查询词典 amphioxus

However, some recent studies demonstrated that urochordate sea squirt is the sister group of vertebrates instead of cephalochordates.In order to further elucidate the relationship in cephalochordates,urochordates and vertebrates and therefore,it is very essential for carting through transcriptome-wide analysis of amphioxusand comparating with sea Urchin and sea squirt.In addition,it would also provide an important foundation for further annotating and assembling of the forthcomingly publicized amphioxus genome.

近来分子系统学的研究结果对文昌鱼的进化地位提出了挑战，因此本论文在文昌鱼基因组计划尚未完成之前，对文昌鱼EST序列的转录组比较分析以及EST数据库分析平台的建立，为更进一步地注释文昌鱼的基因功能、揭示其进化地位以及比较基因组学的研究都具有十分重要的理论与实践意义。

Of Adult amphioxus, GnRH2ir nerve cells located in the dorsal of telencephalon front tip ×260

成年文昌鱼头部纵切面，可见GnRH2ir 细胞在端脑背面后部，靠近中脑处，腹面有GnRH2ir 神经纤维

It is commonly accepted that amphioxus in both Bohai Sea and Japanese waters belong to Branchiostoma belcheri tsingtauense, a subspecies of B.belcheri, according to the previous survey on the morphological characteristics.

该文测定了厦门海域和青岛海域的文昌鱼mtDNA COI和Cyt b基因的部分序列，并与日本产的文昌鱼以及产于大西洋的几种文昌鱼进行了比较。

The effects of antisense oligodeoxynucleotides of LIM class homeobox gene Bblim in Amphioxus(Branchiostoma belcheri tsingtauense) on embryonic development were studied.

研究了青岛文昌鱼LIM类同源框基因Bblim反义寡核苷酸对文昌鱼胚胎发育的影响。

In this paper, the myogenic bHLH gene, AmphiMDF, expressed in the embryos of amphioxus (Branchiostoma belcheri tsingtaunese), has been cloned by the methods of degenerative PCR and RACE.

本文利用简并性PCR和RACE等方法克隆了青岛文昌鱼(B.belcheritsingtaunese)胚胎发育过程中表达的生肌bHLH基因，AmphiMDF。

In this paper, the complete cDNA and deduced amino acid sequences of the ribosomal proteins S23 (AmphiS23) and L35 (AmphiL35) have been identified from amphioxus Branchiostoma belcheri tsingtauense gut cDNA library.

本文从青岛文昌鱼(Branchiostoma belcheri tsingtauense)消化道cDNA文库中得到两个cDNA克隆，鉴定后确定它们分别编码文昌鱼核糖体蛋白S23和L35的基因，命名为AmphiS23和AmphiL35。

The third amphioxus cDNA, AmphiS19, encoding the ribosomal protein S19, was isolated from the gut cDNA library of Branchiostoma belcheri tsingtaunese.

在进化树中，C型溶菌酶和I型溶菌酶更接近一些，而G型溶菌酶位于C型和I型溶菌酶的基部。

Moreover,it was demonstrated that the threesubstances,E,DE and DA,increased dramatically and quickly after LPS treatment.Also,it was revealed that the changes of three substances were more quickly than thechanges of the above mentioned APPs during the same LPS treatment.Thesesuggested that the three substances existed as neurotransmitter.The presence and thechange of the CAs in amphioxus after treated with LPS indicated the evolutionaryexistence of CAs and acute phase response in the protochordate lineage.

第四，我们用高效液相色谱法(High Performance Liquid Chromatography，HPLC)，探讨了LPS感染文昌鱼儿茶酚胺类神经递质的变化，优化了同时测定文昌鱼体液中NE、E和DA三种CAs的HPLC方法，并首次发现，文昌鱼体液中同时存在NE、E、和DA三种CAs物质，其中，E在文昌鱼中首次报道，这三种物质在LPS感染文昌鱼后浓度升高非常明显，与同期的APPs相比变化更为迅速，也体现了神经递质的主导作用，文昌鱼的CAs系统也具有了类似脊椎动物CAs系统的功能，可以初步判断CAs系统的进化源头由脊椎动物可推回到头索类。

In this study, the genomic structure and regulatory elements of ApoD from 10 representive species including protozoan, invertebrate, protochordate and vertebrate were analyzed and compared. The genomic structure of ApoD is less conserved in organisms from protostome to deuterostome invertebrates, while it is highly conserved among chordates including amphioxus and verebrates. All four conserved cysteine residues are present in amino acid sequence of deuterostome ApoDs, while there are only two cysteine residues in amino acid sequence of protostomes ApoD. Structure divergence between protostome and deuterostome ApoD proteins suggests their function difference. The majority of regulatory elements are present in nearly all organism ApoD genes ranging from unicellular protozoan to mammals, suggesting that ApoD plays a very fundamental role, and possesses a conserved regulatory mechanism. However, there also exist some specific regulatory elements, which are present only in certain species and may perform some special roles.ApoD mRNA expression in murine NIH/3T3 fibroblasts exposed to various stresses such as as hydrogen peroxide and UV light shows dose-dependent increase. And a fly homolog of ApoD, Glial Lazarillo, whose overexpression results in increased resistance to hyperoxia as well as a extension of lifespan under normoxia and resistance to starvation without altering lipid or protein content.

本文首先从生物信息学角度对分属于原生动物、无脊椎动物、头索动物和脊椎动物类群的10种动物ApoD的基因结构及调控区的调控元件进行分析及比较，发现：(1)ApoD基因外显子-内含子结构从原生动物草履虫到原口动物再到后口动物海胆的进化过程中不保守，但在分析的几种脊椎动物中相当保守；(2)文昌鱼ApoD基因扮演从无脊椎动物到脊椎动物承上启下的角色，可能代表了脊椎动物ApoD基因原型；(3)四个半胱氨酸保守位点在后口动物中都存在，而在原口动物中只存在两个，原口、后口动物ApoD蛋白一级结构上的差异反映蛋白功能上可能也存在一定差别；(4)调控区大多数主要调控元件为不同动物共有，说明ApoD主要功能及其表达调控在进化中相当保守；(5)ApoD基因个别调控元件是随着物种进化而出现并开始发挥相关作用，如SF-1；还有一些调控元件在进化过程中还没有发现其规律，这说明ApoD某些功能和基因表达调控模式可能因物种不同而存在一定的差异。

Immunocytochemical localization were investigated for the first time in the gonads, brain vesicle and nerve tube of Amphioxus using polyclonal antibodies against 17 b -estradiol, testosterone and progesterone receptors.

首次用雌二醇、睾酮和孕酮受体的多克隆抗体在文昌鱼性腺、脑泡和神经管中进行免疫细胞化学定位研究。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐