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Genetic Fortification of Rice to Address Hidden Hunger: Progress and Prospects

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Biofortification of Staple Crops

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Abstract

Micronutrient malnutrition or hidden hunger is affecting more than 2 billion people globally. The nutrient deficiency is recognised as a major challenge in achieving the United Nation’s Sustainable Development Goals. Biofortification aims at enhancing the micronutrient status of the staple foods through genetic means. Breeding for improved varieties having nutrient enriched grains is a targeted, sustainable and cost-effective approach to alleviate the hidden hunger. Currently, rice is identified as the choice crop for biofortification as it feeds more than half of the global population. This chapter provides a comprehensive review on the progress and prospects of biofortification in rice, with specific emphasis on Fe, Zn and pro-vitamin A carotenoids. Globally, significant progress has been made in surveying the rice germplasm for the micronutrients, and identified several QTLs governing their accumulation, uptake, translocation and storage in the rice grain. However, relatively less progress have been made in molecular breeding of rice towards nutrient enrichment. Recent advancements such as genetic engineering and genome editing provide future promise in the biofortification programmes. Bio-availability rather than quantity should be considered as the determining factor for nutrient enrichment. A holistic approach is required to include stable donors for future varietal development, targeting rice biofortification and consequent alleviation of hidden hunger.

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Authors and Affiliations

  1. Division of Genetics, Indian Agricultural Research Institute, New Delhi, India

    Haritha Bollinedi, A. K. Singh, K. K. Vinod, S. Gopala Krishnan, Prem Chand Gyani, P. K. Bhowmick, M. Nagarajan & R. K. Ellur

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  1. Haritha Bollinedi
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  2. A. K. Singh
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  3. K. K. Vinod
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  4. S. Gopala Krishnan
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  5. Prem Chand Gyani
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  6. P. K. Bhowmick
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  7. M. Nagarajan
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  1. International Center for Agricultural Research in the Dry Areas, Rabat, Morocco

    Shiv Kumar

  2. Division of Genetics, ICAR-Indian Agricultural Research Institute, New Delhi, India

    Harsh Kumar Dikshit

  3. Division of Genetics, ICAR-Indian Agricultural Research Institute, New Delhi, India

    Gyan Prakash Mishra

  4. Amity Institute of Organic Agriculture, Amity University, Noida, Uttar Pradesh, India

    Akanksha Singh

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Bollinedi, H. et al. (2022). Genetic Fortification of Rice to Address Hidden Hunger: Progress and Prospects. In: Kumar, S., Dikshit, H.K., Mishra, G.P., Singh, A. (eds) Biofortification of Staple Crops. Springer, Singapore. https://doi.org/10.1007/978-981-16-3280-8_3

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