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Article Dans Une Revue Agronomy for Sustainable Development Année : 2005

Virulence diversity among branched broomrape (O. ramosa L.) populations in France

Hocine Benharrat
  • Fonction : Auteur
Christian Boulet
  • Fonction : Auteur
Catherine Theodet
  • Fonction : Auteur
Patrick Thalouarn
  • Fonction : Auteur

Résumé

In France, the obligate root parasite O. ramosa L. (broomrape) causes significant decreases in yields in several crops such as Brassica napus L., Cannabis sativa L. and Nicotiana tabacum L. Over the past few years, the broad distribution and the continuous expansion of this parasitic plant have been pointed out. The diversity of its host plants and the increase in its locations in France led us to investigate the virulence of some O. ramosa populations against their potential host plants. Significant variation in their aggressiveness was observed. These results are therefore consistent with the existence of at least two O. ramosa pathovars throughout populations scattered in France. A study by PCR of inter-simple sequence repeat (ISSR) of these two populations allowed us to characterize each of them by specific molecular markers.
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Dates et versions

hal-00886275 , version 1 (11-05-2020)

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  • HAL Id : hal-00886275 , version 1

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Hocine Benharrat, Christian Boulet, Catherine Theodet, Patrick Thalouarn. Virulence diversity among branched broomrape (O. ramosa L.) populations in France. Agronomy for Sustainable Development, 2005, 25 (1), pp.123-128. ⟨hal-00886275⟩
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