Evaluation of resistance to cassava mosaic disease in selected African cassava cultivars using combined molecular and greenhouse grafting tools()

Cassava mosaic disease (CMD) threatens cassava (Manihot esculenta) production in Africa. A total of 24 selected cultivars were screened against CMD using combined molecular and greenhouse grafting tools. Disease severity was recorded for 10 weeks after inoculation and the molecular markers associate...

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Detalles Bibliográficos
Autores principales: Houngue, Jerome Anani, Zandjanakou-Tachin, Martine, Ngalle, Hermine Bille, Pita, Justin S., Cacaï, Gilles Habib Todjro, Ngatat, Sergine E., Bell, Joseph Martin, Ahanhanzo, Corneille
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Academic Press 2019
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6472601/
https://www.ncbi.nlm.nih.gov/pubmed/31007373
http://dx.doi.org/10.1016/j.pmpp.2018.07.003
Descripción
Sumario:Cassava mosaic disease (CMD) threatens cassava (Manihot esculenta) production in Africa. A total of 24 selected cultivars were screened against CMD using combined molecular and greenhouse grafting tools. Disease severity was recorded for 10 weeks after inoculation and the molecular markers associated with CMD2 were detected by PCR. CMD severity significantly differed (P < 0.0001) among cultivars. Twelve cultivars were morphologically resistant and eight of these possessed CMD2 and four did not. These results suggest that there are several CMD-resistant cassava cultivars that could be recommended for on-farm production and for conservation and breeding programs.

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