Abstract
Cassava (Manihot esculenta Crantz) is the predominant staple food in Sub-Saharan Africa (SSA) and an industrial crop in South East Asia. Despite focused breeding efforts for increased yield, resistance, and nutritional value, cassava breeding has not advanced at the same rapidity as other staple crops. In the present study, metabolomic techniques were implemented to characterize the chemotypes of selected cassava accessions and assess potential resources for the breeding program. The metabolite data analyzed was applied to describe the biochemical diversity available in the panel, identifying South American accessions as the most diverse. Genotypes with distinct phenotypic traits showed a representative metabolite profile and could be clearly identified, even if the phenotypic trait was a root characteristic, e.g., high amylose content.
Highlights
IntroductionCassava (Manihot esculenta Crantz) is a woody perennial shrub with edible storage roots (further referred to as roots) which provide a major source of calories for many populations, especially those in Sub-Saharan Africa.[1] Cassava plants are able to grow on marginal soils and provide feasible yields under drought and other stresses.[2] Breeding for cassava varieties with improved yield and biotic and abiotic resistance, and more recently biofortification has been ongoing since 1937.3 Despite these attempts to deliver new improved varieties, progress has been limited in comparison to other global staple crops
Cassava (Manihot esculenta Crantz) is a woody perennial shrub with edible storage roots which provide a major source of calories for many populations, especially those in Sub-Saharan Africa.[1]
The metabolite composition of various cassava varieties (Table 1) was analyzed with three different platforms in order to provide a comprehensive range of metabolites
Summary
Cassava (Manihot esculenta Crantz) is a woody perennial shrub with edible storage roots (further referred to as roots) which provide a major source of calories for many populations, especially those in Sub-Saharan Africa.[1] Cassava plants are able to grow on marginal soils and provide feasible yields under drought and other stresses.[2] Breeding for cassava varieties with improved yield and biotic and abiotic resistance, and more recently biofortification has been ongoing since 1937.3 Despite these attempts to deliver new improved varieties, progress has been limited in comparison to other global staple crops. Improvements in one trait often adversely affect other traits, for example, higher yield has been shown to decrease protein content and high carotenoid to lower starch content, the most important bioproduct of the crop.[5,6]
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