数字农科院2.0

Biofortification of Cereals and Pulses Using New Breeding Techniques: Current and Future Perspectives

文献类型： 外文期刊

作者： Rahil Shahzad;Shakra Jamil;Shakeel Ahmad;Amina Nisar;Sipper Khan;Zarmaha Amina;Shamsa Kanwal;Hafiz Muhammad Usman Aslam;Rafaqat Ali Gill;Weijun Zhou

作者机构：

关键词： anti-nutrients;conventional breeding;CRISPR-Cas;fertilization;genome editing;malnutrition;micronutrients;transgenic breeding

期刊名称： Frontiers in Nutrition

ISSN： 2296-861X

年卷期： 2021 年 8.0 卷

页码：

收录情况： JCR（2021版）

摘要： Cereals and pulses are consumed as a staple food in low-income countries for the fulfillment of daily dietary requirements and as a source of micronutrients. However, they are failing to offer balanced nutrition due to deficiencies of some essential compounds, macronutrients, and micronutrients, i.e., cereals are deficient in iron, zinc, some essential amino acids, and quality proteins. Meanwhile, the pulses are rich in anti-nutrient compounds that restrict the bioavailability of micronutrients. As a result, the population is suffering from malnutrition and resultantly different diseases, i.e., anemia, beriberi, pellagra, night blindness, rickets, and scurvy are common in the society. These facts highlight the need for the biofortification of cereals and pulses for the provision of balanced diets to masses and reduction of malnutrition. Biofortification of crops may be achieved through conventional approaches or new breeding techniques (NBTs). Conventional approaches for biofortification cover mineral fertilization through foliar or soil application, microbe-mediated enhanced uptake of nutrients, and conventional crossing of plants to obtain the desired combination of genes for balanced nutrient uptake and bioavailability. Whereas, NBTs rely on gene silencing, gene editing, overexpression, and gene transfer from other species for the acquisition of balanced nutritional profiles in mutant plants. Thus, we have highlighted the significance of conventional and NBTs for the biofortification of cereals and pulses. Current and future perspectives and opportunities are also discussed. Further, the regulatory aspects of newly developed biofortified transgenic and/or non-transgenic crop varieties via NBTs are also presented.

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