查询词典 phylogenetic

The nucleotide sequence from the coding region of the F gene between nucleotides 1 and 374 was compared by phylogenetic analysis. Total 76 NDV strains from ND outbreaks in China between 1979 and 2005 were analyzed.

表明我国目前NDV 基因型以Ⅶ型为主，还有I、Ⅱ、Ⅵ、Ⅷ和Ⅸ存在， 2004 年黑龙江省的NDV 主要流行毒株为VIIe 型，鸽源NDV 为基因VI 型，与近年来全国NDV 的流行趋势相似。

The fragment of F gene covering cleavage site region was amplified by RT-PCR, cloned and compared. Basing on published sequences of representative NDV strains, a phylogenetic tree was constructed to analyse their variation relation.

第二部分：NDV Sddy-02株F基因的克隆与序列分析本试验设计了一对特异性引物，应用RT-PCR技术扩增出NDV Sddy-02株F基因含裂解位点区363bp片段，同时进行克隆和序列测定分析。

Based on the above research, The situation and level of insecticides resistance in the German cockroach, relationship between activity of P450s and resistance, cloning and identification cytochrome P450 CYP4 genes, phylogenetic relations of insect P450 and the role of CYP4 genes in insecticides resistance of the German cockroach were clarified. The methods to analysising early diagnostics of resistant colony was established.

通过上述研究工作，基本上阐明了德国小蠊的抗药性水平、抗药性的产生和发展、抗性群体的早期诊断、多功能氧化酶系的环氧化活力与抗药性的关系、德国小蠊CYP4基因的克隆和核心序列分析、昆虫P450基因的同源性及进化、CYP4基因在德国小蠊抗药性中的作用等几个方面的内容，并建立了抗药性的早期诊断技术。

Phylogenetic trees for the CXCR4 gene sequences constructed by using maximum parsimony, maximum likelihood and distance method are similar except branch pattern within the New World Monkey lineage.

通过对基于最简约法、最大似然法、距离法构建的CXCR4基因树的比较分析表明，利用Gamma距离法重建灵长类CXCR4基因树的准确性可能更高。

Results the first segment of vertebral artery track in the osseofibrous sheath; the outside diameters at the middle point of this artery segment were 3.63±0.85mm and 3.12±0.74mm in male but 3.03±0.53mm and 2.98±0.84mm in female.the lengths of this artery segment were 61.20±6.80mm and 61.60±5.30mm in male but 59.70±5.80mm and 58.30±8.10mm in female.

结果 椎动脉横突段走行在骨纤维鞘内，中点外径男性左侧为(3.63±0.85)mm、右侧为(3.12±0.74)mm，全长左侧为(61.20±6.80)mm 、右侧为(61.60±5.30)mm；中点外径女性左侧为(3.03±0.53)mm 、右侧为(2.98±0.84)mm；全长左侧为(59.70±5.80)mm 、右侧为(58.30±8.10)mm。

The researches of isoline-generation method for urban logistics distribution probe into the combination of the GIS isolines and the urban distribution system.

本文对城区物流配送中的等值线生成方法的研究为同类研究提供了借鉴，并且对系统的构建提供了方法上的支持。