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Open AccessArticle

A Comparison of the Vertical Transmission of High- and Low-Virulence Nucleopolyhedrovirus Strains in Lymantria Dispar L.

1
Laboratory of Ecological Physiology, Institute of Systematics and Ecology of Animals SB RAS, Frunze str. 11, Novosibirsk 630091, Russia
2
Reshetnev Siberian State University of Science and Technology, Krasnoiarskii rabochii av. 31, Krasnoyarsk 630091, Russia
*
Authors to whom correspondence should be addressed.
Insects 2020, 11(7), 455; https://doi.org/10.3390/insects11070455
Received: 26 June 2020 / Revised: 17 July 2020 / Accepted: 18 July 2020 / Published: 20 July 2020
(This article belongs to the Special Issue Biological Control and Insect Pathology)
Baculoviruses can persist in insect host organisms after infection and may be vertically transmitted to the next generation, in which they may be reactivated. The goal of the present study was to compare the efficiency of the vertical transmission of high- and low-virulence strains and the subsequent reactivation of Lymantria dispar multiple nucleopolyhedrovirus (LdMNPV) in the offspring of Lymantria dispar L. adults who survived after viral infection. As a result of parental infection, the fecundity of survived females, pupae weight, and fertility were significantly different compared to the untreated insects. However, differences in these parameters between high- and low-virulence strains were not observed. The prevalence of virus strains in the offspring measured by quantitative polymerase chain reaction also did not differ. When the larvae reached the fourth instar, they were starved to activate the vertically transmitted virus. The frequency of virus activation in the experiment was not dependent on the virulence of the virus strains. These results are helpful for understanding the strategy of virus survival in nature and for the selection of the most effective strains with transgenerational effects in the years following pest treatment. View Full-Text
Keywords: Lymantria dispar; baculovirus; vertical transmission; covert infection; reactivation Lymantria dispar; baculovirus; vertical transmission; covert infection; reactivation
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MDPI and ACS Style

Akhanaev, Y.B.; Belousova, I.A.; Lebedeva, D.A.; Pavlushin, S.V.; Martemyanov, V.V. A Comparison of the Vertical Transmission of High- and Low-Virulence Nucleopolyhedrovirus Strains in Lymantria Dispar L. Insects 2020, 11, 455. https://doi.org/10.3390/insects11070455

AMA Style

Akhanaev YB, Belousova IA, Lebedeva DA, Pavlushin SV, Martemyanov VV. A Comparison of the Vertical Transmission of High- and Low-Virulence Nucleopolyhedrovirus Strains in Lymantria Dispar L. Insects. 2020; 11(7):455. https://doi.org/10.3390/insects11070455

Chicago/Turabian Style

Akhanaev, Yuriy B.; Belousova, Irina A.; Lebedeva, Darya A.; Pavlushin, Sergey V.; Martemyanov, Vyacheslav V. 2020. "A Comparison of the Vertical Transmission of High- and Low-Virulence Nucleopolyhedrovirus Strains in Lymantria Dispar L." Insects 11, no. 7: 455. https://doi.org/10.3390/insects11070455

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