Rice (Oryza sativa) breeding strategies for grain biofortification

Abstract

Biofortification is a process in which plant species are improved in order to raise the nutritional content of the product consumed. The following are some of the main techniques that can be introduced in plant breeding programs in order to improve the nutritional quality of the food to be produced. The rice breeding for higher Fe and Zn content in grain, rice breeding for higher β-carotene content in the grain, rice breeding for higher folate content in the grain, techniques used for plant transformation, transformation via protoplasts, transformation via bioballistics (or biolistic), transformation via Agrobacterium tumefaciens, identification and in vitro selection of transformed tissues, concepts of gene expression and regulation, protein expression, proteomics, mutant study, patch-clamp, were studied. It is necessary to verify the occurrence of variability among the rice genotypes for the Fe, Zn and B complex vitamins; therefore, it will be possible to select these materials within breeding programs. The simple selection of these superior genotypes in relation to nutritional quality, even though by means of conventional breeding techniques, can bring benefits to rice consumption by the human population.

Loading of zinc and iron in grains of different wheat genotypes in the calcareous and floodplain soils of Bangladesh

“…Genetic biofortification is in conjunction with an agronomic strategy increasing the prospect of developing new cultivars that are more effective at accumulating minerals in the edible section [ 36 ]. For the immediate less costly approach of increase, Zn in grain is agronomic means which can meet up the present malnutrition situation [ 37 ].…”

Genetic analysis of zinc rich landraces for yield, quality and nutritional traits in rice (Oryza sativa L.)

“…Zinc bio-fortification is a promising strategy to address micronutrient malnutrition and also enhance the levels of nutrient contents in staple food crops. The success of biofortification, however, relies on the existence of diversity of the target traits along with yield (Mingotte et al, 2018). Screening of rice genotypes for grain zinc content is, therefore, the initial step in the plant breeding programme for the development of high yielding rice varieties along with high grain zinc content (Chandu et al, 2020).…”

Inducing Variability in Rice for Enriched Iron and Zinc Content through In vitro Culture

“…While somaclonal variation induces variability for Fe and Zn content could be used to develop Fe and Zn enriched rice cultivars. Fe and Zn contents can be increased more than 50% and milling as well as cooking loss can be checked to 3 -5% by selecting from somaclonal variations (Fablo et al 2018).…”