Molecular characterization and prevalence of two capulaviruses: Alfalfa leaf curl virus from France and Euphorbia caput-medusae latent virus from South Africa

Bernardo Pauline, Muhire Brejnev, François Sarah, Deshoux Maëlle, Hartnady Penelope, Farkas Kata, Kraberger Simona, Filloux Denis, Fernandez Emmanuel, Galzi Serge, Ferdinand Romain, Granier Martine, Marais Armelle, Monge Blasco Pablo, Candresse Thierry, Escriu Fernando, Varsani Arvind, Harkins Gordon William, Martin Darren Patrick, Roumagnac Philippe. 2016. Molecular characterization and prevalence of two capulaviruses: Alfalfa leaf curl virus from France and Euphorbia caput-medusae latent virus from South Africa. Virology, 493 : 142-153.

Url - jeu de données - Entrepôt autre : http://www.ncbi.nlm.nih.gov/nuccore/?term=KT214350

Quartile : Q2, Sujet : VIROLOGY

Note générale : Jeux de données enregistrés dans la base GenBank (liens pas encore actifs). Full genomes of: Alfalfa leaf curl virus (KT214350-KT214375); Euphorbia caput-medusae latent virus (KT214376-KT214388). V3 ORF and part of the cp ORF of Alfalfa leaf curl virus (KT214391-KT214427). C3 ORF and part of the C1 ORF of Euphorbia caput-medusae latent virus (KT964062-KT964084).

Résumé : Little is known about the prevalence, diversity, evolutionary processes, genomic structures and population dynamics of viruses in the divergent geminivirus lineage known as the capulaviruses. We determined and analyzed full genome sequences of 13 Euphorbia caput-medusae latent virus (EcmLV) and 26 Alfalfa leaf curl virus (ALCV) isolates, and partial genome sequences of 23 EcmLV and 37 ALCV isolates. While EcmLV was asymptomatic in uncultivated southern African Euphorbia caput-medusae, severe alfalfa disease symptoms were associated with ALCV in southern France. The prevalence of both viruses exceeded 10% in their respective hosts. Besides using patterns of detectable negative selection to identify ORFs that are probably functionally expressed, we show that ALCV and EcmLV both display evidence of inter-species recombination and biologically functional genomic secondary structures. Finally, we show that whereas the EcmLV populations likely experience restricted geographical dispersion, ALCV is probably freely moving across the French Mediterranean region.

Mots-clés géographiques Agrovoc : France, Afrique du Sud

Classification Agris : H20 - Maladies des plantes

Champ stratégique Cirad : Axe 4 (2014-2018) - Santé des animaux et des plantes

Auteurs et affiliations

• Bernardo Pauline, Montpellier SupAgro (FRA)
• Muhire Brejnev, UCT (ZAF)
• François Sarah, INRA (FRA)
• Deshoux Maëlle
• Hartnady Penelope, UCT (ZAF)
• Farkas Kata, University of Canterbury (NZL)
• Kraberger Simona, University of Canterbury (NZL)
• Filloux Denis, CIRAD-BIOS-UMR BGPI (FRA)
• Fernandez Emmanuel, CIRAD-BIOS-UMR BGPI (FRA)
• Galzi Serge, CIRAD-BIOS-UMR BGPI (FRA)
• Ferdinand Romain, CIRAD-BIOS-UMR BGPI (FRA)
• Granier Martine, CIRAD-BIOS-UMR BGPI (FRA)
• Marais Armelle, INRA (FRA)
• Monge Blasco Pablo, CITA [Centro de Investigacion y Tecnologia Agroalimentaria] (ESP)
• Candresse Thierry, INRA (FRA)
• Escriu Fernando, CITA [Centro de Investigacion y Tecnologia Agroalimentaria] (ESP)
• Varsani Arvind, UCT (ZAF)
• Harkins Gordon William, University of the Western Cape (ZAF)
• Martin Darren Patrick, Montpellier SupAgro (FRA)
• Roumagnac Philippe, CIRAD-BIOS-UMR BGPI (ZAF) ORCID: 0000-0001-5002-6039

Source : Cirad-Agritrop (https://agritrop.cirad.fr/580193/)

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