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Genetic diversity of rice vampireweed (Rhamphicarpa fistulosa) populations in rainfed lowland rice in West Africa

Zossou Norliette, Adoukonèou-Sagbadja Hubert, Foncéka Daniel, Baba-Moussa Lamine, Sall Mbaye Ndoye, Ahanchede Adam, Sinsin Brice A.. 2016. Genetic diversity of rice vampireweed (Rhamphicarpa fistulosa) populations in rainfed lowland rice in West Africa. Weed Science, 64 (3) : pp. 430-440.

Journal article ; Article de recherche ; Article de revue à facteur d'impact
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Quartile : Q1, Sujet : AGRONOMY / Quartile : Q2, Sujet : PLANT SCIENCES

Abstract : Rice vampireweed belongs to the Orobanchaceae and is found in Africa and Australia. It is a hemiparasitic weed of lowland rice genotypes and causes losses of 40 to 100% of rice grain yield. Our study addressed the genetic diversity of rice vampireweed in Benin and Senegal. The specific objectives of this research were to study the genetic diversity of rice vampireweed accessions in Benin and Senegal and the relationship between the different genotypes of rice vampireweed through agroecological areas. To achieve these objectives, the genetic diversity of rice vampireweed accessions using the AFLP technique was studied. Based on our results, dendrogram classification has distinguished four different genetic groups. The populations of Benin and Senegal are genetically diverse. Substantial genetic differentiation (GST) exists among agroecological areas within Benin and Senegal (GST = 0.17). The high genetic diversity of rice vampireweed in Benin and Senegal presents a challenge for the development of resistant rice germplasm. (Résumé d'auteur)

Mots-clés Agrovoc : Plante parasite, Oryza sativa, Riz pluvial, Mauvaise herbe, Orobanchaceae, Variation génétique, Génétique des populations, Agroécosystème, Amélioration des plantes

Mots-clés géographiques Agrovoc : Afrique occidentale, Bénin, Sénégal

Mots-clés complémentaires : Rhamphicarpa fistulosa

Classification Agris : H60 - Weeds
F30 - Plant genetics and breeding

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

Auteurs et affiliations

  • Zossou Norliette, UAC (BEN)
  • Adoukonèou-Sagbadja Hubert, UAC (BEN)
  • Foncéka Daniel, CIRAD-BIOS-UMR AGAP (SEN)
  • Baba-Moussa Lamine, UAC (BEN)
  • Sall Mbaye Ndoye, CERAAS (SEN)
  • Ahanchede Adam, UAC (BEN)
  • Sinsin Brice A., UAC (BEN)

Source : Cirad-Agritrop (https://agritrop.cirad.fr/583212/)

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