| Titre |
Genetic Diversity of Rice vampireweed (Rhamphicarpa fistulosa) Populations in Rainfed Lowland Rice in West Africa |
| Auteurs |
ADOUKONOU-SAGBADJA Hubert [2],
|
| Journal: |
Weed Science |
| Catégorie Journal: |
Internationale |
| Impact factor: |
0 |
| Volume Journal: |
64 |
| DOI: |
|
| Resume |
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 (GST¼0.17). The high genetic diversity of rice vampireweed in Benin and Senegal presents a
challenge for the development of resistant rice germplasm. |
| Mots clés |
Facultative parasite, weeds, Benin, Senegal, rice vampireweed |
| Pages |
430 - 440 |
| Fichier |
(PDF) |