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Cassava mosaic disease (CMD) is the most-important disease of cassava (Manihot esculenta) in Africa, and is a potential threat to Latin American (LA) cassava production. Although this viral disease is still unknown in LA, its vector – the whitefly – has recently been found. The disease is best co...


Akano, A.O.Dixon, Alfred G.O.Mba, CBarrera Sabogal, EFregene, Martin A.[Genetic mapping of a dominant gene conferring resistance to cassava mosaic disease]Genetic mapping of a dominant gene conferring resistance to cassava mosaic disease

The gene pools for breeding cassava (Manihot esculenta Crantz) in Africa currently contain only a fraction of the existing genetic variation found in Latin America where the crop originates. Our research aimed to broaden the genetic base in Africa by introducing Latin American (LA) germplasm. The...


Okogbenin, EmmanuelPorto, M.C.M.Egesi, Chiedozie N.Mba, CEspinosa, E.Santos Melendez, LGOspina, C.Marin, JABarrera Sabogal, EGutiérrez A., Janeth PatriciaEkanayake, I.J.Iglesias, C.A.Fregene, Martin A.[Marker-assisted introgression of resistance to cassava mosaic disease into Latin American germplasm for the genetic improvement of cassava in Africa]Marker-assisted introgression of resistance to cassava mosaic disease into Latin American germplasm for the genetic improvement of cassava in Africa
Álvarez, E.Hurtado López, PXFregene, Martin A.Llano Rodríguez, Germán Alberto[Detection of SRR markers associated with resistance to cassava (Manihot esculenta Crantz) Bacterial Blight (CBB) in Colombia]Detection of SRR markers associated with resistance to cassava (Manihot esculenta Crantz) Bacterial Blight (CBB) in Colombia
Kullaya, A.Mtunda, KMasumba, EAKulembeka, H.P.Ferguson, Morag E.Ospina, C.Hurtado López, PXGutiérrez A., Janeth PatriciaBarrera Sabogal, EMarín, J.A.Castro, C.Morillo, AAlzate Gutiérrez, A.M.Morante, NCeballos, H.Tohme, Joseph M.Fregene, Martin A.[Molecular marker-assisted selection (MAS) for improvement of local cassava germplasm in Tanzania for pest and disease resistance]Molecular marker-assisted selection (MAS) for improvement of local cassava germplasm in Tanzania for pest and disease resistance
Bellotti, Anthony C.Fregene, Martin A.Carabalí Muñoz, A.Montoya Lerma, JBurbano Melo, MAlves, A.A.Farias, A.R.N.Tohme, Joseph M.[Wild Manihot species as a source for resistance to artropod pests of cassava]Wild Manihot species as a source for resistance to artropod pests of cassava
Fregene, Martin A.Morante, NSánchez, T.Marin, JAOspina, C.Barrera Sabogal, EGutiérrez A., Janeth PatriciaGuerrero, JMBellotti, Anthony C.Santos Melendez, LGAlzate Gutiérrez, A.M.Moreno, SCeballos, H.[Molecular markers for introgression of useful traits from wild manihot relatives of cassava, marker-assisted selection (MAS) of disease and root quality traits]Molecular markers for introgression of useful traits from wild manihot relatives of cassava, marker-assisted selection (MAS) of disease and root quality traits
Moreno Cabrera, MITomkins, JOkogbenin, EmmanuelFregene, Martin A.[Positional cloning of CMD2 the gene that confers high level of resistance to the cassava mosaic disease (CMD)]Positional cloning of CMD2 the gene that confers high level of resistance to the cassava mosaic disease (CMD)

A study was conducted to determine the extent of genetic diversity among African cassava (Manihot esculenta Crantz) accessions resistant to the cassava mosaic virus disease (CMD), using simple sequence repeat (SSR) markers. The accessions included a breeding stock (clone 58308), five improved lin...


Lokko, YDixon, Alfred G.O.Offei, SDanquah, E.Y.Fregene, Martin A.[Assessment of genetic diversity among African cassava Manihot esculenta Crantz accessions resistant to the cassava mosaic virus disease using SSR markers]Assessment of genetic diversity among African cassava Manihot esculenta Crantz accessions resistant to the cassava mosaic virus disease using SSR markers

Se evaluó la resistencia de los padres y las progenies de la familia de yuca K (M Nga 2 x CM 2177-2), a Phytophthora tropicalis. Además de los parentales se inocularon raíces frescas de 69 individuos de la familia K. Con la evaluación fenotípica y con base en las mapas moleculares de M Nga 2 (Mad...


Loke, John BernardÁlvarez, E.Vallejo Cabrera, Franco AlirioMarin, JFregene, Martin A.Rivera, SLlano Rodríguez, Germán AlbertoPineda López, Benjamín[Análisis de QTLS de la resistencia a pudrición de raíz causada por Phytophthora tropicalis en una población segregante de yuca (Manihot esculenta Crantz)]Análisis de QTLS de la resistencia a pudrición de raíz causada por Phytophthora tropicalis en una población segregante de yuca (Manihot esculenta Crantz)

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