New insights into phylogenetic diversity of maize yellow mosaic virus revealed by viral sequences from Togo
Abstract
Maize yellow mosaic virus (MaYMV) (Polerovirus MAYMV, Solemoviridae) is an emerging virus with a global distribution in maize and other cereals. Transmitted by aphids in a circulative, non-propagative manner, MaYMV forms icosahedral particles and possesses a positive-sense, single-stranded RNA genome. Three distinct phylogenetic groups of MaYMV have been described in Asia, East Africa and America. In this study, 19 genomes from Togo and Burkina Faso were sequenced using Virion-Associated Nucleic Acid-Based Metagenomics (VANA) combined with classical RT-PCR to constitute the first dataset of West African MaYMV genomic sequences. Phylogenetic analyses of global dataset of 92 genomic sequences revealed two sub-lineages within the African strain. We also identified 11 recombinant MaYMV genomes involving intra- and inter-continental exchanges. A comparative analysis of non-recombinant sequences was conducted and identified 19 molecular signatures in proteins P0, P1, P4 and P5. Notably, residue K/R 253 in P5 was lineage-specific and is located near conserved polero- and luteovirus residues known to be involved in aphid interactions, suggesting a potential role in viral transmission.
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BibTeX
@article{palanga2026insights,
title = {{New insights into phylogenetic diversity of maize yellow mosaic virus revealed by viral sequences from Togo}},
author = {Essowé Palanga and Agnès Pinel-Galzi and Denis Filloux and Adeline Pinault and Kossi Essotina Kpemoua and Essohouna Ali and Charlotte Julian and Damien Richard and Nils Poulicard and Philippe Roumagnac and Eugénie Hebrard},
journal = {Virus Research},
year = {2026},
month = oct,
doi = {10.1016/j.virusres.2026.199804},
url = {https://hal.science/hal-05796355v1},
note = {CC BY-NC-ND 4.0},
}
RIS
TY - JOUR
TI - New insights into phylogenetic diversity of maize yellow mosaic virus revealed by viral sequences from Togo
AU - Essowé Palanga
AU - Agnès Pinel-Galzi
AU - Denis Filloux
AU - Adeline Pinault
AU - Kossi Essotina Kpemoua
AU - Essohouna Ali
AU - Charlotte Julian
AU - Damien Richard
AU - Nils Poulicard
AU - Philippe Roumagnac
AU - Eugénie Hebrard
PY - 2026
DA - 2026/10/13
JO - Virus Research
DO - 10.1016/j.virusres.2026.199804
UR - https://hal.science/hal-05796355v1
AB - Maize yellow mosaic virus (MaYMV) (Polerovirus MAYMV, Solemoviridae) is an emerging virus with a global distribution in maize and other cereals. Transmitted by aphids in a circulative, non-propagative manner, MaYMV forms icosahedral particles and possesses a positive-sense, single-stranded RNA genome. Three distinct phylogenetic groups of MaYMV have been described in Asia, East Africa and America. In this study, 19 genomes from Togo and Burkina Faso were sequenced using Virion-Associated Nucleic Acid-Based Metagenomics (VANA) combined with classical RT-PCR to constitute the first dataset of West African MaYMV genomic sequences. Phylogenetic analyses of global dataset of 92 genomic sequences revealed two sub-lineages within the African strain. We also identified 11 recombinant MaYMV genomes involving intra- and inter-continental exchanges. A comparative analysis of non-recombinant sequences was conducted and identified 19 molecular signatures in proteins P0, P1, P4 and P5. Notably, residue K/R 253 in P5 was lineage-specific and is located near conserved polero- and luteovirus residues known to be involved in aphid interactions, suggesting a potential role in viral transmission.
SN - 0168-1702
ER -