Rights statement: This is the peer reviewed version of the following article: Xu, P., Rice, A., Li, T., Wang, J., Yang, X., Yuan, H., Graham, R.I. and Wilson, K. (2022), Partiti-like viruses from African armyworm increase larval and pupal mortality of a novel host: the Egyptian cotton leafworm. Pest Management Science https://doi.org/10.1002/ps.6771 which has been published in final form at https://onlinelibrary.wiley.com/doi/10.1002/ps.6771 This article may be used for non-commercial purposes in accordance With Wiley Terms and Conditions for self-archiving.
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Final published version
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
}
TY - JOUR
T1 - Partiti-like viruses from African armyworm increase larval and pupal mortality of a novel host
T2 - the Egyptian cotton leafworm
AU - Xu, Pengjun
AU - Rice, Annabel
AU - Li, Tong
AU - Wang, Jie
AU - Yang, Xianming
AU - Yuan, He
AU - Graham, Robert I
AU - Wilson, Kenneth
N1 - This is the peer reviewed version of the following article: Xu, P., Rice, A., Li, T., Wang, J., Yang, X., Yuan, H., Graham, R.I. and Wilson, K. (2022), Partiti-like viruses from African armyworm increase larval and pupal mortality of a novel host: the Egyptian cotton leafworm. Pest Management Science https://doi.org/10.1002/ps.6771 which has been published in final form at https://onlinelibrary.wiley.com/doi/10.1002/ps.6771 This article may be used for non-commercial purposes in accordance With Wiley Terms and Conditions for self-archiving.
PY - 2022/4/30
Y1 - 2022/4/30
N2 - The general principle of using microbes from one species to manage a different pest species has a clear precedent in the large-scale release of mosquitoes carrying a Wolbachia bacterium derived from Drosophila flies. New technologies will facilitate the discovery of microbes that can be used in a similar way. Previously, we found three novel partiti-like viruses in the African armyworm (Spodoptera exempta). To investigate further the utility and consistency of host shift of insect viruses as a potential pest management tool, we tested the interaction between the partiti-like viruses and another novel host, the Egyptian cotton leafworm (Spodoptera littoralis). We found that all three partiti-like viruses appeared to be harmful to the novel host S. littoralis, by causing increased larval and pupal mortality. No effect was observed on host fecundity, and partiti-like virus infection did not impact host susceptibility when challenged with another pathogen, the baculovirus SpliNPV. Transcriptome analysis of partiti-like virus-infected and noninfected S. littoralis indicated that the viruses could impact host gene-expression profiles of S. littoralis, but they impact different pathways to the two other Spodoptera species through effects on pathways related to immunity (Jak-STAT/Toll and Imd) and reproduction (insulin signaling/insect hormones). Taken together with the previous findings in the novel host S. frugiperda, these results indicate a parasitic relationship between the partiti-like viruses and novel insect hosts, suggesting a possible use and novel pest management strategy through the artificial host shift of novel viruses. [Abstract copyright: © 2021 Society of Chemical Industry.]
AB - The general principle of using microbes from one species to manage a different pest species has a clear precedent in the large-scale release of mosquitoes carrying a Wolbachia bacterium derived from Drosophila flies. New technologies will facilitate the discovery of microbes that can be used in a similar way. Previously, we found three novel partiti-like viruses in the African armyworm (Spodoptera exempta). To investigate further the utility and consistency of host shift of insect viruses as a potential pest management tool, we tested the interaction between the partiti-like viruses and another novel host, the Egyptian cotton leafworm (Spodoptera littoralis). We found that all three partiti-like viruses appeared to be harmful to the novel host S. littoralis, by causing increased larval and pupal mortality. No effect was observed on host fecundity, and partiti-like virus infection did not impact host susceptibility when challenged with another pathogen, the baculovirus SpliNPV. Transcriptome analysis of partiti-like virus-infected and noninfected S. littoralis indicated that the viruses could impact host gene-expression profiles of S. littoralis, but they impact different pathways to the two other Spodoptera species through effects on pathways related to immunity (Jak-STAT/Toll and Imd) and reproduction (insulin signaling/insect hormones). Taken together with the previous findings in the novel host S. frugiperda, these results indicate a parasitic relationship between the partiti-like viruses and novel insect hosts, suggesting a possible use and novel pest management strategy through the artificial host shift of novel viruses. [Abstract copyright: © 2021 Society of Chemical Industry.]
KW - transcriptome
KW - partiti-like viruses
KW - Spodoptera littoralis
KW - host shift
KW - fitness
U2 - 10.1002/ps.6771
DO - 10.1002/ps.6771
M3 - Journal article
C2 - 34965003
VL - 78
SP - 1529
EP - 1537
JO - Pest Management Science
JF - Pest Management Science
SN - 1526-498X
IS - 4
ER -