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Marker-assisted breeding of Musa balbisiana genitors devoid of infectious endogenous Banana streak virus sequences

Marker-assisted breeding of Musa balbisiana genitors devoid of infectious endogenous Banana streak virus sequences. Umber Marie, Pichaut Jean-Philippe, Farinas Benoît, Laboureau Nathalie, Janzac Bérenger, Plaisir Kaïssa, Pressat Gersende, Baurens Franc-Christophe, Chabannes Matthieu, Duroy Pierre-Olivier, Guiougou Chantal, Delos Jean-Marie Eric, Jenny Christophe, Iskra Caruana Marie-Line, Salmon Frédéric, Teycheney Pierre-Yves. 2016. Molecular Breeding, 36 (6), 11 p.
http://dx.doi.org/10.1007/s11032-016-0493-8

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Article de revue ; Article de recherche ; Article de revue à facteur d'impact

Quartile : Q1, Sujet : HORTICULTURE / Quartile : Q1, Sujet : AGRONOMY / Quartile : Q2, Sujet : PLANT SCIENCES / Quartile : Q3, Sujet : GENETICS & HEREDITY

Résumé : Breeding new interspecific banana hybrid varieties relies on the use of Musa acuminata and M. balbisiana parents. Unfortunately, infectious alleles of endogenous Banana streak virus (eBSV) sequences are present in the genome of Musa balbisiana genitors. Upon activation by biotic and abiotic stresses, these infectious eBSVs lead to spontaneous infections by several species of Banana streak virus in interspecific hybrids harboring both Musa acuminata and M. balbisiana genomes. Here we provide evidence that seedy M. balbisiana diploids display diverse eBSV allelic combinations and that some eBSVs differ structurally from those previously reported. We also show that segregation of infectious and non-infectious eBSV alleles can be achieved in seedy M. balbisiana diploids through self-pollination or chromosome doubling of haploid lines. We report on the successful breeding of M. balbisiana diploid genitors devoid of all infectious eBSV alleles following self-pollination and on the potential of breeding additional M. balbisiana diploid genitors free of infectious eBSVs by crossing parents displaying complementary eBSV patterns. Our work paves the way to the safe use of M. balbisiana genitors for breeding banana interspecific hybrid varieties with no risk of activation of infectious eBSVs. (Résumé d'auteur)

Mots-clés Agrovoc : Musa balbisiana, Musa acuminata, Virus des végétaux, Amélioration des plantes, Gène, Allèle, Marqueur génétique, Biologie moléculaire, Hybridation interspécifique

Mots-clés géographiques Agrovoc : Guadeloupe

Mots-clés complémentaires : Banana streak virus, Endovirus

Classification Agris : F30 - Génétique et amélioration des plantes
H20 - Maladies des plantes

Axe stratégique Cirad : Axe 1 (2014-2018) - Agriculture écologiquement intensive

Auteurs et affiliations

  • Umber Marie, INRA (GLP)
  • Pichaut Jean-Philippe, Vilmorin (FRA)
  • Farinas Benoît
  • Laboureau Nathalie, CIRAD-BIOS-UMR BGPI (FRA)
  • Janzac Bérenger
  • Plaisir Kaïssa, CIRAD-BIOS-UMR AGAP (GLP)
  • Pressat Gersende, CIRAD-BIOS-UMR AGAP (GLP)
  • Baurens Franc-Christophe, CIRAD-BIOS-UMR AGAP (FRA)
  • Chabannes Matthieu, CIRAD-BIOS-UMR BGPI (FRA)
  • Duroy Pierre-Olivier, UNIL (CHE)
  • Guiougou Chantal, CIRAD-BIOS-UMR AGAP (GLP)
  • Delos Jean-Marie Eric, CIRAD-BIOS-UMR AGAP (GLP)
  • Jenny Christophe, CIRAD-BIOS-UMR AGAP (FRA)
  • Iskra Caruana Marie-Line, CIRAD-BIOS-UMR BGPI (FRA)
  • Salmon Frédéric, CIRAD-BIOS-UMR AGAP (GLP)
  • Teycheney Pierre-Yves, CIRAD-BIOS-UMR AGAP (GLP)

Source : Cirad-Agritrop

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