Zinc-Biofortified Rice: A Sustainable Food-Based Product for Fighting Zinc Malnutrition

Calayugan, Mark Ian C.; Swamy, B. P. Mallikarjuna; Nha, Chau Thanh; Palanog, Alvin D.; Biswas, P.; Descalsota-Empleo, Gwen Iris; Min, Yin; Inabangan-Asilo, Mary Ann

doi:10.1007/978-3-030-66530-2_13

Cited by 15 publications

(24 citation statements)

References 112 publications

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“…The major impediment is linkage drag during introgression that compromises yield (Majumder et al, 2019). Despite the existence of synergism between iron and zinc in rice grain, only zinc "biofortification" has gained more traction and several varieties are already released in Asia (Calayugan et al, 2021). The success of zinc "biofortification" came from the use of aus germplasm in conventional breeding programs.…”

Section: Genetic Variability Of Zinc and Iron Concentration In Ricementioning

confidence: 99%

Genetic bio-fortification of cereals from a plant breeding perspective

Tumbare¹,

Maphosa²

2023

J. Plant Breed. Crop Sci.

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Genetic "biofortification" presents an opportunity to provide sustainable and cost effective solution to the perennial problem of 'hidden hunger' prevalent in most marginalized regions of the world. Diets in households across many developing countries typically consist of high calorie crops which are mostly cereals with limited diversified food. Production of cereal crops with elevated quantities of micronutrients needed by the human body is thus imperative. This review outlines "biofortification" of cereal crops with emphasis on existing genetic variability, genetic and molecular basis for essential amino acids, zinc and iron accumulation in crops. Key issues emerging are that in most crops there is scope to undertake conventional improvement given the sufficient variability influenced by additive genes or associated with polymorphic molecular markers. Availability of high potential noncommercialized genetically modified cereals points to prohibitive legislative frameworks and the need to adopt other tools such as gene editing, mutation breeding not subject to stiff restrictions. Furthermore, given the output nature of "biofortification" traits there is need to integrate this genetic enhancement in a pipeline breeding approach which integrates breeding objectives so that communities and processors can access these peculiar traits in every new improved variety.

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Section: Genetic Variability Of Zinc and Iron Concentration In Ricementioning

confidence: 99%

Genetic bio-fortification of cereals from a plant breeding perspective

Tumbare¹,

Maphosa²

2023

J. Plant Breed. Crop Sci.

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Section: Release Using Bangladesh As An Examplementioning

confidence: 99%

“…The release of biofortified rice varieties is another recent trend in Bangladesh (Calayugan et al, 2021). BRRI has released seven high zinc rice varieties under the HarvestPlus initiative (BRRI dhan 62, BRRI dhan 64, BRRI dhan 72, BRRI dhan 74, BRRI dhan 84, BRRI dhan 100 and BRRI dhan 102; BRRI, 2020; Calayugan et al, 2021; http://www.brri.gov.bd/). BRRI dhan100 contains nearly 26 mg of zinc where popular rice varieties usually contain 15-16 mg/kg zinc and it has a high yield potential of nearly 7.7 tonnes per hectare.…”

Section: Release Using Bangladesh As An Examplementioning

confidence: 99%

“…), submergence tolerance (Swarna-Sub1, Samba Mahsuri-Sub1, IR64-Sub1 and CR-1009-Sub1) and salt tolerance (CSR 43, CSR 46, CSR49, CSR52, etc. ), with high protein (CR Dhan 310) and high zinc (DRR Dhan45 and Chhattisgarh Zinc Rice-1; Calayugan et al, 2021). Several other countries also released Sub1 rice varieties, such as IR64-Sub1 in the Philippines, Ciherang-Sub1 in Indonesia and Nepal and FARO 66 and 67 in Nigeria.…”

Section: Release Using Bangladesh As An Examplementioning

confidence: 99%

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Trends in rice research: 2030 and beyond

Rahman

Zhang

2022

Food and Energy Security

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Rice production and research have met unprecedented challenges in recent years. Yield and total production have plateaued for many years in some major producing rice‐producing countries while the demand from populations in poverty is ever increasing. For example, more than 100 million additional people became extremely poor, mostly from Asia and sub‐Saharan Africa in 2020 alone. Rice is not only the calorie source for half of the global population but also the key staple food for the world's poorest and undernourished people living in Asia and Africa. In this review, we have analysed the trends in rice research in the past three decades, particularly on the mega‐projects that attempted to revolutionize rice yield, sustainability and quality of both Asian (Oryza sativa) and African (O. glaberrima) rice, with their impact on rice cultivation. We have also analysed the trends in population growth, rice cultivation, production, price and consumption along with their projections for 2030 and beyond. Furthermore, we have analysed recent trends in variety release using Bangladesh as an example. Finally, we have identified the future challenges and priorities of rice research.

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“…QTL mapping provides information for identification of genomic regions associated with targeted traits of interest (Zn) by combining genetic information with phenotypic data [ 24 ]. Several QTLs with moderate to high phenotypic variance were reported for grain Zn on all 12 chromosomes of rice [ 25 ]. Recent studies on QTL mapping for mineral elements in rice using bi-parental and multi-parental mapping populations have identified multiple loci and demonstrated the genetic complexity of grain micronutrient traits [ 26 ].…”

Section: Introductionmentioning

confidence: 99%

Identification of Genomic Regions Associated with High Grain Zn Content in Polished Rice Using Genotyping-by-Sequencing (GBS)

Uttam

Suman

Jaldhani

et al. 2022

Plants

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Globally, micronutrient (iron and zinc) enriched rice has been a sustainable and cost-effective solution to overcome malnutrition or hidden hunger. Understanding the genetic basis and identifying the genomic regions for grain zinc (Zn) across diverse genetic backgrounds is an important step to develop biofortified rice varieties. In this case, an RIL population (306 RILs) obtained from a cross between the high-yielding rice variety MTU1010 and the high-zinc rice variety Ranbir Basmati was utilized to pinpoint the genomic region(s) and QTL(s) responsible for grain zinc (Zn) content. A total of 2746 SNP markers spanning a genetic distance of 2445 cM were employed for quantitative trait loci (QTL) analysis, which resulted in the identification of 47 QTLs for mineral (Zn and Fe) and agronomic traits with 3.5–36.0% phenotypic variance explained (PVE) over the seasons. On Chr02, consistent QTLs for grain Zn polished (qZnPR.2.1) and Zn brown (qZnBR.2.2) were identified. On Chr09, two additional reliable QTLs for grain Zn brown (qZnBR.9.1 and qZnBR.9.2) were identified. The major-effect QTLs identified in this study were associated with few key genes related to Zn and Fe transporter activity. The genomic regions, candidate genes, and molecular markers associated with these major QTLs will be useful for genomic-assisted breeding for developing Zn-biofortified varieties.

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Zinc-Biofortified Rice: A Sustainable Food-Based Product for Fighting Zinc Malnutrition

Cited by 15 publications

References 112 publications

Genetic bio-fortification of cereals from a plant breeding perspective

Genetic bio-fortification of cereals from a plant breeding perspective

Trends in rice research: 2030 and beyond

Identification of Genomic Regions Associated with High Grain Zn Content in Polished Rice Using Genotyping-by-Sequencing (GBS)

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