Perception of Advanced Techniques in Conservation and Utilization of Wild Genetic Resources of Rice

Ratnasekera, Disna; Tennakoon, Asanka; Sandamal, Salinda; Wijerathna, Parakkrama

doi:10.1007/978-981-16-7699-4_21

Cited by 1 publication

(1 citation statement)

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“…For the enhancement of zinc content in rice, innovative breeding methods come to the forefront. Ratnasekera et al [18] propose the utilization of the advanced backcross method, particularly for the genetic dissection of wild rice and the development of high-zinc introgression lines. This approach not only efficiently incorporates valuable genetic traits from wild rice but also offers a promising avenue for boosting zinc levels.…”

Section: Biofortification Of Ricementioning

confidence: 99%

Advancing Nutritional Quality through Genomic Approaches for Biofortification in Cereal Crops: A Review

Bhattacharya,

Sathiyabalan,

Amir

2024

Plant Cell Biotech. Mol. Biol.

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Hidden hunger, characterized by micronutrient deficiencies, remains a pervasive challenge in marginalized regions worldwide, where the main source of sustenance is cereal crops. This review study examines how improving the nutritional value of cereal crops through genetic "biofortification" could help fight hidden hunger. It focuses on the biochemical and genetic underpinnings of zinc, iron, and critical amino acid accumulation. While conventional breeding efforts have made significant contributions, the complex genetic nature of mineral content in grains presents challenges. In response, molecular techniques such as CRISPR/Cas genome editing offer promising solutions. The paper underscores the widespread prevalence of iron and zinc deficiencies, affecting over a large population. Children under five and pregnant and lactating women in developing countries are particularly vulnerable. Biofortification, defined as the breeding of staple food crops with elevated micronutrient levels, emerges as a cost-effective and sustainable strategy to improve health in resource-poor households. It discusses the transfer of genes and quantitative trait loci (QTLs) from wild and related species to cultivated wheat, emphasizing the need for marker-assisted selection and genomic selection to accelerate breeding progress. The emergence of CRISPR/Cas genome editing techniques in recent decades has revolutionized the field of plant breeding. The paper highlights the successful application of CRISPR/Cas9 in numerous cereal crops such as rice, wheat, maize and barley, to improve crop yields and nutritional content. It also explores the potential for precise base editing and gene expression modifications. However, challenges such as transformation efficiency, specific promoters, and ethical and regulatory concerns are also mentioned and discussed. In conclusion, genetic biofortification through CRISPR/Cas-mediated genome editing presents a promising avenue for alleviating hidden hunger in cereal-dependent regions.

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Section: Biofortification Of Ricementioning

confidence: 99%