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1.The support vector classification(SVC),as a novel approach,was employed to discriminate between high and low activitiesof ethofenprox analogous based on the molecular descriptors,which were physicochemical parameters including two Hammett constants(σ_A and σ_B),two molar refractivities(M_A and M_B)and the sum of hydrophobic parameters(Ⅱ)of substituents A and B respectively.
将支持向量机分类方法用于醚菊酯类似物构效关系的研究,所用分子描述符为物理化学参数,包括该类化合物的两个取代基的Hammett 常数σ_A、σ_B,摩尔折射M_A、M_B,疏水值之和П。收藏指正
2.Moreover, the whole sequences of the two Wx genes (Wx~ a and Wx~ b ) of nonglutinous rice reported by others were also aligned, and another two pairs of dominant STS molecular markers were designed to discriminate Wx~ a from Wx~ b based on the special site between the two genotypes. Then, corresponding rice genotypes were identified by the established new markers.
同时在前人公布的非糯性水稻蜡质基因的不同类型(Wxa和Wxb)的全序列比对分析的基础上,选取了两种基因型特定的差异位点,设计了两个基于PCR扩增反应用于特异识别这两种Wx基因的显性STS分子标记,并用新建立的标记对相应的水稻基因型进行了检测.收藏指正
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