Chloroplast DNA (cp) and nuclear ribosomal DNA (rDNA) variation was investigated in 45 accessions of cultivated and wild Manihot species. Ten independent mutations, 8 point mutations and 2 length mutations were identified, using eight restriction enzymes and 12 heterologous cpDNA probes from mung...
Fregene, Martin A.
,
Vargas, J.
,
Ikea, J.
,
Angel, F.
,
Thome, J.
,
Asiedu, Robert
,
Akoroda, M.O.
,
Roca, W.
,
[Variability of chloroplast DNA and nuclear ribosomal DNA in cassava (Manihot esculenta Crantz) and its wild relatives]
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Variability of chloroplast DNA and nuclear ribosomal DNA in cassava (Manihot esculenta Crantz) and its wild relatives
Stable as well as adaptable genotypes of high-yielding cassava cultivars, should be developed and made available to farmers, to ensure increases in cassava production in a target region or country in sub-Saharan Africa. As farmer-to-farmer contact is the primary means of diffusion of new crop var...
Dixon, A.
,
Asiedu, Robert
,
Hahn, S.K.
,
[Genotypic stability and adaptability: analytical methods and implications for cassava breeding for low input agriculture]
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Genotypic stability and adaptability: analytical methods and implications for cassava breeding for low input agriculture
Multilocational trials were conducted in several agroecological zones in West Africa to assess the magnitude of genotype x environment (G x E) interaction and to identify stable varieties which could be used in breeding programs in the region. The reaction of the varieties to major cassava diseas...
Otoo, J.
,
Dixon, A.
,
Asiedu, Robert
,
Okeke, J.E.
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Maroya, N.
,
Tougnon, K.
,
Okoli, O.
,
Tetteh, J.P.
,
Hahn, S.K.
,
[Genotype environment interaction studies with cassava]
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Genotype environment interaction studies with cassava
Background
Maize yield potential is rarely maximized in sub-Saharan Africa (SSA) due to the devastating effects of drought stress and Striga hermonthica parasitism. This study was conducted to determine the gains in grain yield and associated changes in an early-maturing yellow bi-parental maize ...
Badu-Apraku, B.
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Talabi, A.O.
,
Fakorede, M.A.B.
,
Fasanmade, Y.
,
Gedil, M.
,
Magorokosho, C.
,
Asiedu, Robert
,
[Yield gains and associated changes in an early yellow bi-parental maize population following genomic selection for Striga resistance and drought tolerance]
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Yield gains and associated changes in an early yellow bi-parental maize population following genomic selection for Striga resistance and drought tolerance