Publications des scientifiques de l'IRD

Kam H., Laing M. D., Séré Y., Thiémélé Deless, Ghesquière Alain, Ahmadi N., Ndjiondjop M. N. (2013). Evaluation of a collection of rice landraces from Burkina Faso for resistance or tolerance to Rice yellow mottle virus. Journal of Plant Pathology, 95 (3), p. 485-492. ISSN 1125-4653.

Titre du document
Evaluation of a collection of rice landraces from Burkina Faso for resistance or tolerance to Rice yellow mottle virus
Année de publication
2013
Type de document
Article référencé dans le Web of Science WOS:000327591600004
Auteurs
Kam H., Laing M. D., Séré Y., Thiémélé Deless, Ghesquière Alain, Ahmadi N., Ndjiondjop M. N.
Source
Journal of Plant Pathology, 2013, 95 (3), p. 485-492 ISSN 1125-4653
A collection of accessions of Burkina Faso rice germplasm was evaluated for resistance using four Rice yellow mottle virus (RYMV) isolates: Ng122, Ng144, B27 and BF1. B27, an isolate from Benin was used first, followed by Ng122 and Ng144 (isolates from Niger), and BF1 an aggressive isolate from Burkina Faso was used last to assess the accessions status against RYMV. Fourteen-day-old plantlets were inoculated and symptoms scored fortnightly from 14 to 56 days post inoculation (dpi). Plant height of all accessions was recorded at 49 dpi with isolates Ng122 and Ng144. The Oryza sativa accessions of the collection were highly susceptible except one (BM24), which combined partial resistance and tolerance. Twenty one O. glaberrima accessions out of 48 were found resistant to Ng122 and Ng144. When these 21 accessions were subsequently screened with the aggressive RYMV strain BF1, eight of them displayed a delay in the appearance of RYMV symptoms while two showed resistance. The new sources of resistance identified in this study, could be exploited in breeding to control the spread of RYMV in Africa.
Plan de classement
Sciences du monde végétal [076]
Description Géographique
BURKINA FASO
Localisation
Fonds IRD
Identifiant IRD
PAR00011168
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