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Genetic diversity of sugarcane yellow leaf virus in a sugarcane selection plot in Guadeloupe (FWI)

Girard Jean-Claude, Fernandez Emmanuel, Daugrois Jean-Heinrich, Roques Danièle, Roumagnac Philippe, Rott Philippe. 2012. Genetic diversity of sugarcane yellow leaf virus in a sugarcane selection plot in Guadeloupe (FWI). International Sugar Journal, 114 (1358) : pp. 104-108. ISSCT Congress. 27, Veracruz, Mexique, 7 March 2010/11 March 2010.

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Titre espagnol : Diversidad genética del Sugarcane yellow leaf virus en una parcela de selección de caña de azúcar en Guadalupe (FWI) / Titre portugais : Diversidade genética do vírus da folha amarela da cana de açúcar em um lote selecionado em Guadalupe (FWI)

Quartile : Q4, Sujet : AGRONOMY / Quartile : Q4, Sujet : FOOD SCIENCE & TECHNOLOGY

Abstract : The genetic diversity of Sugarcane yellow leaf virus (SCYLV) was investigated in a sugarcane selection plot in Guadeloupe to determine the incidence of the different known virus genotypes (BRA-PER, CUB and REU) in a breeding progeny. Four F1 leaves were randomly collected from each of 154 sugarcane clones and tested for the presence of SCYLV by tissue blot immunoassay (TBIA). The leaf samples were stored at -80°C until total RNA was extracted from SCYLV-infected leaves. The virus genotypes were determined by RT-PCR and primer pairs specific to each virus genotype. Eighty-two percent of the tested leaves were infected by SCYLV and all known virus genotypes occurred in the selection plot. The majority of plants were infected by genotypes CUB or REU, or by a mixture of these two genotypes. This situation was completely different from the situation observed in commercial fields in Guadeloupe where the incidence of SCYLV is much lower and where most plants are infected by genotype REU. The significance of this striking situation will be further investigated.

Mots-clés Agrovoc : Saccharum officinarum, Virus des végétaux, Variation génétique

Mots-clés géographiques Agrovoc : Guadeloupe

Mots-clés complémentaires : Sugarcane yellow leaf virus

Classification Agris : F30 - Plant genetics and breeding
H20 - Plant diseases

Champ stratégique Cirad : Axe 1 (2005-2013) - Intensification écologique

Auteurs et affiliations

  • Girard Jean-Claude, CIRAD-BIOS-UMR BGPI (FRA)
  • Fernandez Emmanuel, CIRAD-BIOS-UMR BGPI (FRA)
  • Daugrois Jean-Heinrich, CIRAD-BIOS-UMR BGPI (GLP)
  • Roques Danièle, CIRAD-BIOS-UMR AGAP (GLP)
  • Roumagnac Philippe, CIRAD-BIOS-UMR BGPI (FRA) ORCID: 0000-0001-5002-6039
  • Rott Philippe, CIRAD-BIOS-UMR BGPI (FRA) ORCID: 0000-0001-6085-6159

Autres liens de la publication

Source : Cirad - Agritrop (https://agritrop.cirad.fr/564161/)

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