| 1. | 20 unique genes were hypothesized according to sequence comparison against current dada deposited in genbank
对以上各基因进行了深入的序列比较。 |
| 2. | In order to more reasonably analyze conservative sites and conservative regions in biological sequences , a new method of biological sequences comparison with constraints on element position is proposed
摘要为了更合理地分析生物序列的保守位点和保守区域，提出并研究了一种对生物序列元素位置进行约束的比较方法。 |
| 3. | Statistics on code bias of alpha - amylase gene of bombyx mori and bombyx mandarina show that little difference exists between them . 3 . sequence comparison of alpha - amylase gene of five insects
五种昆虫的q淀粉酶基因序列的比较分析野桑蚕a淀粉酶基因核苦酸序列与家蚕、草地贪夜蛾（ spodotera户u归rdax玉米螟（ ostrinianubilalison25 ）和果蝇（ dnsophilasubobsc 。 |
| 4. | Sequence comparison indicated that the nucleotide homologies between the ha gene and those from eight other h3 subtype sfv isolates from china are over 95 % , and nucleotide identities between h3 sfv isolates in china and a typical h3 subtype avian influenza virus ( aiv ) strain dkuk1 - 63 are 95 % to 100 % . these might tell us that the ha gene of all h3 subtype sives isolated in china was originally from aiv although the vaccine based on ha do not protect against different subtype of influenza virus , it can provide favorable resistance to infection with antigenic variants within a subtype
通过与其它7株国内siv分离株和6株genebank中的h3流感病毒ha序列比较分析，结果表明分离自我国不同地区的8株h3siv核苷酸序列同源性均在95 %以上，且与禽流感病毒( aiv )经典代表株dkuk - 63序列同源性在95 - 100 %之间，证实我国h3sivha基因来源于禽的流感病毒。 |
| 5. | The blastn results show that gyn - 15 is closely related to a symbiont of anemones , s . californium , and the free - living strain , gymnodinium varians . sequence comparison show that the similarities among each part of the sequences from these three strains are all above 99 % . phylogenetic reconstruction with neighbor - joining ( nj ) method using sequences of variable regions ( v1 + v2 + v3 ) of ssu rdna indicated that gyn - 15 , s . californium and g . varians form a new clade with 100 % bootstrap support
以ssurdna序列中的三个可变区( vz + vz + v3 )和邻接法困eighbor一joiningmethod ， nj法)构建共生甲藻属的系统进化树表明， gyn一巧与5 . cal扣rnium和g . varian :在共生甲藻属内构成一个独立的、自检支持百分率为100 %的子类群( clade ) ，根据这些结果可将gyn一巧初步鉴定为属于共生甲藻属。 |
| 6. | The phylogenetic tree was constructed based on sequence comparison and analysis . the result showed that c strain derived from rabbit spleen tissue , c strain adapted to sk6 cell , shimen virulent strain all belonged to group 1 . 1 , and the prevalent virulent strains belonged to subgroup 2 . 1 or subgroup 2 . 2 . this indicated there were at least two subgroups , which were prevailing in china , and the prevalent virulent strains were diverse far from c . strain vaccine virus
通过序列比较和系统发生关系分析发现： c -株兔组织毒、 c ?株细胞毒和中国50 60年代流行的石门强毒株同属于组群1 ( group1 ) ；近期猪瘟流行毒株均属于组群2 ( group2 )的两个不同的亚组群( subgroup2 . 1和2 . 2 ) ，表明我国目前流行毒株至少有2个亚组群。 |
| 7. | With the strengthening human ’ s impact to the nature ， the earth land surface 1s exderiencing profound change land use land cover change has become one of the most important study areas of global changes urbanization and industrialization are major types of land use change in china today ， which will certainly have a deep effect on the land use structure and food safety in this paper ， multi phases satellite image including corona ， tm ， etm + data which redresent the information of yixing of 1 966 ， 1 984 ， 1 992 and 200 1 ， respectively were dealt with multi - bands composition ， precise rectification ， interpretatlon ma ‘ k establishment ， computer assistant visual interpretation by the methord of multi 。 phase - sequence comparison and integrated technology of rs and gis vetor maps of land use of 1 984 ， 1 992 and 200 1 are attained by interpreting images above . by the data above and the image of corona of 1 966 ， vector maps of expanding towns ot yixing city from 1 966 to 2001 are acquired
城市化、工业化已经成为当前我国土地利用变化主要表现形式，它必将对我国的土地利用结构和粮食安全产生深远的影响。本文借助遥感和gis技术，采用多时期连续对比法对fm , etm + pan等多源卫星遥感影像进行土地利用人机交互解译，获得了高精度的宜兴市1984 、 1992 、 2001年三个时期l ： 5万土地利用图。利用以上各时期的土地利用数据库并结合1966年corona卫星影像资料建立了1966 、 1984 、 1992和2001年四个时期的城镇建设用地数据库。 |
| 8. | 2 . sequence comparison of alpha - amylase gene of bombyx mori and bombyx mandarina the alpha - amylase gene structures of bombyx mori and bombyx mandarina are very similar , both comprised of five exons and four introns , with comparable length . the mean at contents of exons and introns are not much different
家蚕和野桑蚕-淀粉酶基因序列比较分析家蚕和野桑蚕-淀粉酶基因具有相似的基因结构，都包含5个exon和4个intron ，各内含子、外显子长度在家蚕和野桑蚕间较类似，外显子和内含子at的平均值差异不大。 |
| 9. | It was interested that there was an extra six nucleosides insertion between 1647 - 1652nt ( according to the genomic sequence of la sota strain ) , and the sequence were cccccc in f48e9 strain , and tcccac in zj1 strain . in order to test if insertion of this six nucleosides is related with the virulence of nd , two primers were designed to amplify the same fragment of another ten ndv strains . the result of sequence comparison of 16 strains showed that the six nucleoside was absent in lentogenic strain . this suggested that the six nucleosides insertion might have relationship with the ndv virulence . compared with all known sequence of ndv . there was a special sequence ( 5 ' tctctctcctctctcctcc3 " ) in the genomic cdna of ndv f48e9 strain
通过rt - pcr方法扩增获得了另外10个背景清楚毒株的np - p基因间隔区片段，将这些序列与f48e9 、 lasota 、 clone30 、 b1 、 zj1和v4的相应序列进行了比较，结果在参比的16个ndv毒株中在该区段中除了有多个点突变外，个别毒株有碱基插入和缺失，所有以lasota株为代表的弱毒株均无6碱基的插入，而以f48e9株为首的强毒株均有此6碱基的插入，但有一个中等毒力的毒株dp没有6碱基的插入，不过它的基因序列和lasota的几乎相同，对于所克隆到的基因的代表性还有待确定。 |
