polymorphic site中文什么意思

例句与用法

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1. the data was analyzed with three softwares : tfpga popgene32 and amova155 which are tools for molecular analysis . the percentage of polymorphic sites at species level was 86.93 %, and they were 83 % 68 % and 80 % at population level . nei " s gene diversity index was 0
   但长叶榧还保留了较高的遗传多样性：物种水平的nei氏基因多样度指数达到0.2479，shannon信息指数也达到了0.3807，而其物种水平的多态位点百分率高达86.93。
2. the result showed that 79 polymorphic sites forming 9 haplotypes were found within the 381bp region in d-loop; two types of sequences were discovered in d-loop region of amur tiger, short sequence that is highly homologous to other species, and long sequence that contains a 22bp insertion
   )个单倍型；d-loop区中存在着两种序列：一是与其他物种同源性很高的“正常序列”，称为“短序列”；二是带有22bp的插入片断的“非正常序列”，称为“长序列”。
3. 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。
4. 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。
5. using these ssr markers and hmw-gs markers, we detected the polymorphism of 111 lines selected randomly from 131 lines of ril-8 . a marker genetic linkage map with 18 chromosomes and 51 polymorphic sites covered 1296.7 cm of wheat genome was carried out using mapmarker / exp 3.0
   利用上述标记，对随机选择的ril-8群体的111个系进行了分析，采用mapmarkerexp分析软件，绘制了一张共包括18条染色体(不含1a、3a、7d)、51个位点的分子标记连锁遗传图谱，总长1296.7cm。