HAL will be down for maintenance from Friday, June 10 at 4pm through Monday, June 13 at 9am. More information
Skip to Main content Skip to Navigation
Journal articles

Synergy between an emerging monopartite begomovirus and a DNA-B component

Abstract : In recent decades, a legion of monopartite begomoviruses transmitted by the whitefly Bemisia tabaci has emerged as serious threats to vegetable crops in Africa. Recent studies in Burkina Faso (West Africa) reported the predominance of pepper yellow vein Mali virus (PepYVMLV) and its frequent association with a previously unknown DNA-B component. To understand the role of this DNA-B component in the emergence of PepYVMLV, we assessed biological traits related to virulence, virus accumulation, location in the tissue and transmission. We demonstrate that the DNA-B component is not required for systemic movement and symptom development of PepYVMLV (non-strict association), but that its association produces more severe symptoms including growth arrest and plant death. The increased virulence is associated with a higher viral DNA accumulation in plant tissues, an increase in the number of contaminated nuclei of the phloem parenchyma and in the transmission rate by B. tabaci. Our results suggest that the association of a DNA-B component with the otherwise monopartite PepYVMLV is a key factor of its emergence.
Complete list of metadata

Contributor : Hal Sorbonne Université Gestionnaire Connect in order to contact the contributor
Submitted on : Wednesday, January 19, 2022 - 1:33:54 PM
Last modification on : Saturday, May 21, 2022 - 3:51:53 AM
Long-term archiving on: : Wednesday, April 20, 2022 - 6:39:37 PM


Publication funded by an institution


Distributed under a Creative Commons Attribution 4.0 International License



Alassane Ouattara, Fidèle Tiendrébéogo, Nathalie Becker, Cica Urbino, Gaël Thébaud, et al.. Synergy between an emerging monopartite begomovirus and a DNA-B component. Scientific Reports, Nature Publishing Group, 2022, 12, pp.695. ⟨10.1038/s41598-021-03957-7⟩. ⟨hal-03534330⟩



Record views


Files downloads