Therapeutic rice (Oryza sativa L.): Crop breeding interventions to combat chronic diseases

Kandasamy Vaishnavi; Seshadri Geetha; Paranjothi Mathankumar; Kalipatty Nalliappan Ganesan; Narayanan Manikanda Boopathi; Doraiswamy Uma; Krishnan Anandhi

doi:10.14719/pst.5331

Authors

Kandasamy Vaishnavi Department of Genetics and Plant Breeding, Centre for Plant Breeding and Genetics, Tamil Nadu Agricultural University, Coimbatore 641 003, India https://orcid.org/0009-0008-8501-3383
Seshadri Geetha Department of Pulses, Centre for Plant Breeding and Genetics, Tamil Nadu Agricultural University, Coimbatore 641 003, India https://orcid.org/0000-0002-1403-4741
Paranjothi Mathankumar Indian Institute of Rice Research, Hyderabad 500 030, India https://orcid.org/0000-0002-2658-8995
Kalipatty Nalliappan Ganesan Department of Rice, Centre for Plant Breeding and Genetics, Tamil Nadu Agricultural University, Coimbatore 641 003, India https://orcid.org/0000-0003-1982-7318
Narayanan Manikanda Boopathi Department of Plant Biotechnology, Centre for Plant Molecular Biology and Biotechnology, Tamil Nadu Agricultural University, Coimbatore 641 003, India https://orcid.org/0000-0003-3615-3386
Doraiswamy Uma Centre for Plant Molecular Biology and Bioinformatics, Tamil Nadu Agricultural University, Coimbatore 641 003, India https://orcid.org/0000-0002-9233-4192
Krishnan Anandhi Department of Pulses, Centre for Plant Breeding and Genetics, Tamil Nadu Agricultural University, Coimbatore 641 003, India https://orcid.org/0000-0001-6102-0265

DOI:

https://doi.org/10.14719/pst.5331

Keywords:

rice, therapeutic traits, health benefits, genetic diversity, marker-assisted selection, genomic tools

Abstract

Rice (Oryza sativa L.) serves not only as a dietary staple worldwide but also harbours a rich array of bioactive compounds with therapeutic potential. This review explores various therapeutic traits in rice such as phenolic acids, flavonoids, anthocyanins and proanthocyanidins, elucidating their profound health benefits. These compounds act as antioxidants and are crucial in reducing oxidative stress and the risk of type 2 diabetes, obesity, hypertension, high cholesterol, cardiovascular diseases and certain cancers, thereby offering notable nutraceutical benefits. Enhancing these compounds in rice is advantageous, as it is a staple food. The success of crop improvement programs depends on the availability of genetic diversity. This review extensively discusses the genetic diversity among rice genotypes for therapeutic traits and the potential for enhancing these traits through breeding initiatives. Molecular-based approaches are essential in breeding programs, as they enable accurate identification of genetic markers associated with desirable traits and Quantitative Trait Loci (QTLs), facilitating marker-assisted selection easier. These techniques also help to understand the genetic basis and expression of targeted traits. Advances in molecular markers and genomic tools are explored, with an emphasis on developing rice varieties enriched with health-promoting compounds. Furthermore, genome editing and transgenic technologies are examined for their role in precisely modulating bioactive compound levels. This synthesis offers a comprehensive perspective for breeders aiming to enhance therapeutic traits in rice.

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