Cassava genetic resources and their utilizationfor breeding of the crop

Nagib M.A. Nassar
Published December 20, 2007
Genet. Mol. Res. 6 (4): 1151-1168 (2007)

About the authors
Nagib M.A. Nassar

Corresponding author
N.M.A. Nassar


Wild cassava relatives are perennials and vary in growth pattern from nearly acaulescent subshrubs to small trees. They have been used as a source of useful characters such as high protein content, apomixis, resistance to mealybug and mosaic disease, and tolerance to drought. Indigenous clones are a potential source of β-carotene and lycopene. Apomixis genes have been transferred to the crop successfully through interspecific hybridization, and apomictic clones arising from these hybrids are now being grown at the Universidade de Brasília. Interspecific hybrids produced earlier were polyploidized and had their fertility restored. Different useful types of chimera were also produced.

Key words: Apomixis, Drought, Protein, Amino acids

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