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Transmission Comparisons of Cucumber Mosaic Virus Subgroup I and II Isolates by Different Aphid Species
Author(s) -
Tian Zhaofeng,
Liu Weicheng,
Luo Chen,
Li Yongdan,
Liu Ting
Publication year - 2012
Publication title -
journal of phytopathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 60
eISSN - 1439-0434
pISSN - 0931-1785
DOI - 10.1111/j.1439-0434.2012.01906.x
Subject(s) - lipaphis erysimi , biology , myzus persicae , aphid , aphis craccivora , cucumber mosaic virus , aphis gossypii , cucumovirus , aphis , virology , veterinary medicine , aphididae , botany , homoptera , virus , plant virus , pest analysis , medicine
To investigate the transmission differences between Cucumber mosaic viru s (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 go s sypii. 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.