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2篇 您的检索式:作者名="Vartika Mathur"
    题名 作者 年代 出处 被引量
1Genetic mutations associated with chemical resistance in the cytochrome P450 genes of invasive and native Bemisia tabaci (Hemiptera: Aleyrodidae) populations in China显示文摘抽象 Bemisia tabaci (Gennadius ) 是种类建筑群,和它的二大多数损坏遗传因子型 B, Q 是全球性分布式的害虫。尽管有增加生物、经济的影响,很少对进化机制被知道与本国的人口赞成他们的比赛。这里,我们在侵略 B, Q 遗传因子型和本国的 Cv 人口的 P450 基因调查了基因变化。与化学抵抗联系的四个变化,支持列伊, Ala-Ser, Ser-Phe 和 Trp 列伊,在 B 和 Q 遗传因子型的细胞色素 P450 CYP6C 和 CYP9F 基因被发现。生物鉴定结果也表明 B 和 Q 遗传因子型有大约 12 47 次更多的抵抗到 acephate, beta-cypermethrin, methomyl,和 5 7 次更多的抵抗到 imidacloprid 杀虫药剂比 Cv 人口。我们的结果为更好理解并且监视侵略、本国的 B 的杀虫剂电阻提供一条分子的途径。在中国的 tabaci 人口。Bao-Li Qiu Li Liu Xiao-Xi Li Vartika Mathur Zhen-Qiang Qin Shun-Xiang Ren 2009Insect Science2009,16,3:9
2Identification of three major Bemisia tabaci biotypes in China based on morphological and DNA polymorphisms显示文摘The sweet potato whitefly, Bemisia tabaci, is a complex species, and many of its biotypes are important agricultural pests. The B and Q biotypes are invasive and coexist with the native Cv biotype on vegetable and ornamental crops in China. In this study, these three bio- types were identified based on their morphological characteristics, RAPD-PCR analysis, and DNA sequences of the COI gene. The ante-rior and posterior wax fringes of the B, Q, and Cv biotypes significantly differed from each other. Based on this morphological characteristic, the three biotypes can easily be distinguished in greenhouses and fields. Genomic DNA RAPD-PCR band patterns also revealed differences between these biotypes using the H16 primer. The B biotype has three bright DNA bands between 250 and 600 bp, the Q biotype only has one bright band at 300 bp, while the Cv biotype has no band between 250 and 500 bp. Both the Cv and Q biotypes have two bright bands at 750 and 1000 bp while the B biotype has only one band at 1000 bp. Based on the COI gene, the genetic identity between B and Cv, B and Q, and Q and CV was 85.8%, 94.7%, and 86.0%, respectively. The MP tree indicated that the phylogenetic relationship between the B and Q biotypes is much closer than that between the B and Cv or the Q and Cv biotypes. The uses of the morphological, RAPD-PCR, and DNA sequencing methods in biotype identification of B. tabaci are discussed.Baoli Qiu Yanping Chen Li Liu Weilu Peng Xiaoxi Li Muhammad Z. Ahmed Vartika Mathur Yuzhou Du Shunxiang Ren 2009Progress in Natural Science:Materials International2009,19,6:5
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