Publication: Genetic variation and biological activity of two closely related alphabaculoviruses during serial passage in permissive and semi-permissive heterologous hosts
| dc.contributor.author | Belda García, Isabel María | |
| dc.contributor.author | Beperet Arive, Inés | |
| dc.contributor.author | Williams, Trevor | |
| dc.contributor.author | Caballero Murillo, Primitivo | |
| dc.contributor.department | Institute for Multidisciplinary Research in Applied Biology - IMAB | en |
| dc.date.accessioned | 2020-02-18T13:10:03Z | |
| dc.date.available | 2020-02-18T13:10:03Z | |
| dc.date.issued | 2019 | |
| dc.description.abstract | Phylogenetic analyses suggest that Mamestra brassicae multiple nucleopolyhedrovirus (MbMNPV) and Helicoverpa armigera multiple nucleopolyhedrovirus (HearMNPV) may be strains of the same virus species. Most of the studies comparing their biological activities have been performed in their homologous hosts. A comparison of host range and stability in alternative hosts was performed. The host range of these viruses was compared using high concentrations of inoculum to inoculate second instars of six species of Lepidoptera. One semi-permissive host (Spodoptera littoralis) and one permissive host (S. exigua) were then selected and used to perform six serial passages involving a concentration corresponding to the ~25% lethal concentration for both viruses. Restriction endonuclease analysis showed fragment length polymorphisms in every hostvirus system studied. In S. littoralis, serial passage of MbMNPV resulted in decreased pathogenicity and an increase in speed-of-kill, whereas no significant changes were detected for HearMNPV with respect to the initial inoculum. In contrast, both viruses showed a similar trend in S. exigua. These results highlight the low genetic diversity and a high phenotypic stability of HearMNPV with respect to the original inoculum after six successive passages in both insect hosts. This study concludes that host-baculovirus interactions during serial passage are complex and the process of adaptation to a novel semi-permissive host is far from predictable. | en |
| dc.description.sponsorship | This research was funded by project AGL2014-57752-C2-1-R (Ministerio Español de Economía, Industria y Competitividad). I.M.B. received a studentship from Ministerio Español de Economía, Industria y Competitividad. I.B. received a Torres Quevedo postdoctoral fellowship from Ministerio de Ciencia, Innovación y Universidades. | en |
| dc.format.extent | 19 p. | |
| dc.format.mimetype | application/pdf | en |
| dc.identifier.doi | 10.3390/v11070660 | |
| dc.identifier.issn | 1999-4915 | |
| dc.identifier.uri | https://academica-e.unavarra.es/handle/2454/36273 | |
| dc.language.iso | eng | en |
| dc.publisher | MDPI | en |
| dc.relation.ispartof | Viruses, 2019, 11 (7), 660 | en |
| dc.relation.projectID | info:eu-repo/grantAgreement/MINECO//AGL2014-57752-C2-1-R/ES/ | en |
| dc.relation.publisherversion | https://doi.org/10.3390/v11070660 | |
| dc.rights | © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license. | en |
| dc.rights.accessRights | info:eu-repo/semantics/openAccess | |
| dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | |
| dc.subject | Host range | en |
| dc.subject | Spodoptera littoralis | en |
| dc.subject | Spodoptera exigua | en |
| dc.subject | Genetic stability | en |
| dc.subject | Insecticidal characteristics | en |
| dc.title | Genetic variation and biological activity of two closely related alphabaculoviruses during serial passage in permissive and semi-permissive heterologous hosts | en |
| dc.type | info:eu-repo/semantics/article | |
| dc.type.version | Versión publicada / Argitaratu den bertsioa | es |
| dc.type.version | info:eu-repo/semantics/publishedVersion | en |
| dspace.entity.type | Publication | |
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