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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
agricultural and biological sciences
Characterisation of resistance to branched broomrape, Phelipanche ramosa, in winter oilseed rape
Crop Protection, Volume 42, Year 2012
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Description
Over the past decade, Phelipanche ramosa, a weedy parasitic plant (broomrape), has been increasingly infesting winter oilseed rape (WOSR) fields in France. Elite WOSR lines have shown different responses in P. ramosa infested fields, suggesting that genetic variability might be available for breeding programmes targeting broomrape resistance. Ten WOSR genotypes selected for their contrasting response in field experiments were analysed using mini-rhizotron and greenhouse co-culture experiments to determine the components of resistance to broomrape. Partial resistance was revealed at three developmental stages of the parasitic plant. First, at the germination stage, parasite attachment to the roots of some WOSR lines was limited and associated with a low rate of parasite seed germination. This mechanism of parasite avoidance could nevertheless be suppressed under high infestation in mini-rhizotron and greenhouse conditions. Second, at the root attachment stage, limited parasite attachment was observed in mini-rhizotron conditions under low and high infestation, and in greenhouse conditions. Third, after successful parasite attachment, some WOSR genotypes retarded and even disturbed the growth of tubercles, minimising and delaying parasite emergence from the soil. Although the exact mechanisms limiting parasite attachment and tubercle development require further investigation, our findings suggest that, by cumulating various resistance traits in new genotypes to enhance effectiveness and potential durability of resistance, breeding could be a promising control strategy in WOSR. © 2012 Elsevier Ltd.
Authors & Co-Authors
Gauthier, Mathieu
France, Nantes
Unité en Sciences Biologiques et Biotechnologies
Véronési, Christophe
France, Nantes
Unité en Sciences Biologiques et Biotechnologies
El-Halmouch, Yasser
Egypt, Damanhour
Faculty of Science
Leflon, Martine
France, Thiverval-grignon
Centre Technique Interprofessionnel Des Oléagineux et du Chanvre Cetiom
Jestin, Christophe
France, Thiverval-grignon
Centre Technique Interprofessionnel Des Oléagineux et du Chanvre Cetiom
Labalette, Françoise
France, Paris
Organisation Nationale Interprofessionnelle Des Graines et Fruits Oléagineux Onidol
Simier, Philippe
France, Nantes
Unité en Sciences Biologiques et Biotechnologies
Delourme, Régine
France, Le Rheu
Centre Inrae Bretagne-normandie
Delavault, Philippe M.
France, Nantes
Unité en Sciences Biologiques et Biotechnologies
Statistics
Citations: 20
Authors: 9
Affiliations: 5
Identifiers
Doi:
10.1016/j.cropro.2012.07.002
ISSN:
02612194
Research Areas
Genetics And Genomics
Violence And Injury