Nutritionally Enhanced Staple Food Crops

Dwivedi, S L and Sahrawat, K L and Rai, K N and Blair, M W and Andersson, M S and Pfeiffer, W (2012) Nutritionally Enhanced Staple Food Crops. In: Plant Breeding Reviews. Wiley & Sons, Inc, pp. 169-292. ISBN 9781118358566

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Crop biofortification is a sustainable and cost-effective strategy to address malnutrition in developing countries. This review synthesizes the progress toward developing seed micronutrient-dense cereals and legumes cultivars by exploiting natural genetic variation using conventional breeding and/or transgenic technology, and discusses the associated issues to strengthen crop biofortification research and development. Some major QTL for seed iron and zinc, seed phosphorus, and seed phytate in common bean, rice,J;md wheat have been mapped. An iron reductase QTL associated with seed-iron ~QTL is found in common bean where the genes coding for candidate enzymes involved in phytic acid synthesis have also been mapped. Candidate genes for Ipa co segregate with mutant phenotypes identified in rice and soybean. The Gpe-B1 locus in wild emmer wheat accelerates senescence and increases nutrient remobilization from leaves to developing seeds, and another gene named TtNAM-B1 affecting these traits has been cloned. Seed iron-dense common bean and rice in Latin America; seed iron-dense common bean in eastern and southern Africa;.....

Item Type: Book Section
Uncontrolled Keywords: nutritionally enhanced staple food crops; crop biofortification, sustainable/cost-effective in malnutrition; biomarkers for assessing nutritional status; mining germplasm for natural variation for seed iron, zinc, phytate; natural genetic variation, for seed mineral-dense cultivars
Subjects: Others > Food Legumes
Others > Agriculture-Farming, Production, Technology, Economics
Depositing User: Mr Sanat Kumar Behera
Date Deposited: 25 Oct 2012 14:29
Last Modified: 04 Jul 2013 08:23
Acknowledgement: Appreciation is expressed to the staff of ICRISAT library for their efforts in conducting literature searches and arranging for reprints; to Kevin Pixley, the University of Wisconsin, ,Madison, USA and CIMMYT, Mexico for critically going through the provitamin A section of the manuscript; and to Jules Janick and the anonymous reviewers for making useful suggestions on improving the manuscript. Funding support from HarvestPlus is acknowledged as is the support and encouragement from William Dar (Director General, ICRISAT).
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