neighbor-joining中文什么意思

近邻结合法

邻近结合法

• neighbor:    n. 1.邻人,邻居；邻近的人；邻国 ...
• joining:    n. 连接，结合；接缝。 joini ...
• neighbor to neighbor:    邻里结对互助

例句与用法

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1. The data matrix for the 37 taxon contained 553 variable sites ( 57 . 6 % ) , of which 336 were phylogenetically informative . the phylogenetic relationships were inferred using the neighbor - joining and maximum - parsimony methods . in mp method , the heuristic search generated two single most parmonious tree
   双盖藏属diplazium 、菜蔽属c公刀ipteris 、短肠蔗属allantodia和肠获属diplaziopsis构成单系起源，在两种系统树中分别得到98 % ( mp )和100 % ( nj )的支持率。
2. The obtained haplotypes are compared , aligned and analyzed by dna sequence analysis software package dnastar , dnasp , mega , to calculated residue composition , polymorphic sites and genetic distance , to consider the types and rates of residus substitution and to create neighbor - joining ( nj ) phylogenetic trees and determine phylogeny of the classification taxa involved in the research . 5
   5 、盲榕科昆虫cytb基因序列分析方法和分析结果直接反映着被试分类单元的遗传物质的差异和遗传本质，是最为客观的系统分类依据，所以可应用于盲峙科的种类的鉴别、种群的分析、种上类群的划分以及科级阶元水平系统发育关系的确定。
3. The percentage of polymorphic sites , degree of genetic polymorphism and genetic distance were compared and the phylogenetic tree was constructed by neighbor - joining method . the partial mitochondrial 16s rrna gene was amplified by polymerase chain reaction ( pcr ) and the pcr products were directly sequenced after purified . these sequences , together with the homologous sequences of another trichiuridae species lepidopus caudatus obtained from genbank were used to analyze nucleotide difference and to establish a upgma phylogenetic tree by means of biological informatics
   汝us价ay1830 )各12个个体进行rapd分析，对比多态位点比例、遗传多态度以及遗传距离，并构建neighbor - join吨系统树;通过pcr扩增出线粒体165rrna基因，纯化后直接测序，利用生物信息学方法进行序列分析和核昔酸变异比较，结合ge红bar止中大西洋叉尾带鱼( lepid (护脚caud玫tuseuphrasen1788 )同源序列构建u甲cm叭系统树。
4. Aligned with cytochrome b sequences from 29 siluriforms in japan , korea , russia , africa , north america and south america retrieved from genbank , and selected astyanax mexicanus , phenacogrammus interruptus , cyprinus carpio and oncorhynchus mykiss as outgroups , which are belonging to characiformes , cypriniformes and salmoniformes , respectively . we constructed a matrix of 65 dma sequences . the kimura ' s two - parameter distances were calculated and molecular phylogenetic trees were constructed by using the maximum parsimony ( mp ) , maximum likelihood ( ml ) and neighbor - joining ( nj ) methods
   所得序列与从genbank下载的分布于非洲、北美洲和南美洲等地的鲇形目鱼类同一基因序列进行排序，并选用脂鲤目( characiformes )的墨西哥丽脂鲤( astyanaxmexicanus ) 、断线脂鲤( phenacogrammusinterruptus ) ，鲤形目( cypriniformes )的鲤( cyprinuscarpio )以及鲑形目( salmoniformes )大麻哈鱼属的oncorhynchusmykiss作外类群。
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。