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Transmission Comparisons of Cucumber Mosaic Virus Subgroup I and II Isolates by Different Aphid Species

文献类型： 外文期刊

作者： Tian, Zhaofeng 1 ; Liu, Weicheng 1 ; Luo, Chen 1 ; Li, Yongdan 2 ; Liu, Ting 1 ;

作者机构： 1.Beijing Acad Agr & Forestry Sci, Inst Plant & Environm Protect, Beijing 100097, Peoples R China

2.China Agr Univ, Coll Agr, Dept Entomol, Beijing 100193, Peoples R China

关键词： Cucumber mosaic virus;subgroup isolates;aphid transmission;epidemiology;China

期刊名称：JOURNAL OF PHYTOPATHOLOGY （ 影响因子：1.789； 五年影响因子：1.574 ）

ISSN：

年卷期：

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收录情况： SCI

摘要： To investigate the transmission differences between Cucumber mosaic virus (CMV) subgroup isolates, we carried out a comparative study with five aphid species Myzus persicae, Aphis gossypii, Lipaphis erysimi, Aphis craccivora and Megoura viciae in laboratory and field experiments to evaluate spread of CMV Subgroup I NX and subgroup II AG isolates in tobacco. Both NX and AG varied in transmission efficiency by the five aphids, and our transmission results revealed important differences in transmission efficiency of two isolates by Myzus persicae and Aphis gossypii. In contrast, significant transmission differences were not detected with Lipaphis erysimi, Aphis craccivora or Megoura viciae. Interestingly, the overall transmission efficiencies of the two different subgroup strains were almost equal when field transmissions were tested with mixed populations of the five aphid species. Our results together with our previously reported experiments on competition of CMV subgroup isolates in tobacco suggest that variations in aphid vector populations contribute substantially to the epidemic potential of CMV subgroup isolates.

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