An aphid-transmitted polerovirus is mutualistic with its insect vector by accelerating population growth in both winged and wingless individuals

Yingjie Liu, Pengjun Xu, Huijie Dai, Fei Wang, Hao Zong, Hailin Yang, Lifang Wang, Robert I. Graham, Xiufang Wang, Yonghui Zhang, Guangwei Ren, Yonghao Dong

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Abstract

The occurrence and increased dispersion of plant viruses and insect vectors are serious global threat to the production of agricultural crops. Facing novel pathogenic plant viruses, the ability to accurately identify plant virus species, and understand the interaction between plant viruses, host plants and their insect vectors would provide an important basis for formulating effective plant virus control measures. In this study, we explored the transmission mechanism, pathogenic symptoms, host range and the interactions between virus and aphid vectors of a novel polero virus from Nicotianatabacum, named Tobacco yellow virus (TYV). The results indicate that TYV can be transmitted by Myzus persicae in a persistent manner, and cause yellowing and shrinking of tobacco leaves. TYV can successfully infect a total of 9 plant species belonging to 3 families. The effect of TYV-infected tobacco plants on M. persicae behavior and life characteristics was found to be stage-dependent. TYV can directly and indirectly manipulate the performance and life history traits of M. persicae vectors to promote their own transmission. These results provide a certain theoretical basis for the possibility of control strategies of the virus, and the in-depth exploration of the interaction among plant virus, vector aphid and host plants.
Original languageEnglish
Article number2321151
Number of pages10
JournalJournal of Plant Interactions
Volume19
Issue number1
Early online date11 Mar 2024
DOIs
Publication statusFirst published - 11 Mar 2024

Keywords

  • Plant Science
  • Tobacco
  • tobacco yellow virus
  • Myzus persicae
  • Selection behaviour
  • life characteristics
  • Tobacco yellow virus
  • tobacco
  • selection behavior

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