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Diversity breeding program on common bean (Phaseolus vulgaris L.) targeting rapid cooking and iron and zinc biofortification

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Title Diversity breeding program on common bean (Phaseolus vulgaris L.) targeting rapid cooking and iron and zinc biofortification
Presented at the third International Tropical Agriculture Conference (TROPAG 2019), Brisbane, Australia, 11–13 November 2019
 
Creator Mukankusi, Clare
Cowling, Wallace A.
Siddique, Kadambot K.M.
Li, Li
Kinghorn, Brian
Rubyogo, Jean-Claude
 
Subject beans
cooking
breeding methods
iron
zinc
frijol
cocción
métodos de mejoramiento genéticos
 
Description Common bean (Phaseolus vulgaris L.) is a major component of agricultural systems and diets of the urban and rural populations of East and Central Africa, providing Fe and Zn essential to the health and well-being of African women and children, and protein essential for the entire household. However, bean consumption is limited by constraints such as long cooking time (CT). Cooking demands large amounts of water, fuel and time. It has negative effects on the environment, livelihoods, security and health. Genetic variability in cooking time is documented. Recent development of new breeding methods based on pedigree and genomic selection together with optimal contribution selection (OCS) offers an opportunity to accelerate breeding for rapid CT and higher Fe and Zn grain content. Genotypic and phenotypic data of an African diversity pool, representing key bean market classes, were used to generate genomic estimated breeding values (GEBVs) for grain yield, CT, Fe and Zn. GEBV’s were weighted to maximise the desired outcome in an economic index. From 161 candidate bean genotypes with GEBVs, 67 were chosen for 80 matings within six major grain market classes. An additional 22 breeder nominated matings were included. The predicted outcomes in the first cycle showed a major improvement in population mean for index (+286.77 US$/ha), 6.2% increase in GY and 7.3% reduction in CT, with an achieved increase in population co-ancestry of 0.0753. A 30% reduction in the mean population CT and improved Fe (15%) and Zn (10%), is expected after 5 cycles of annual recurrent selection.
 
Date 2020
2020-04-14T14:38:02Z
2020-04-14T14:38:02Z
 
Type Conference Paper Abstract
 
Identifier Mukankusi, C.; Cowling, W.A.; Siddique, K.K.M.; Li, L.; Kinghorn, B.; Rubyogo, J.C. (2020) Diversity breeding program on common bean (Phaseolus vulgaris L.) targeting rapid cooking and iron and zinc biofortification. Proceedings 2019 36(1) p. 194 ISSN: 2504-3900
2504-3900
https://hdl.handle.net/10568/107982
https://doi.org/10.3390/proceedings2019036194
 
Language en
 
Rights CC-BY-4.0
Open Access
 
Format p. 194
application/pdf
 
Publisher MDPI