Recent advances in miRNAs mediated agronomical advantageous traits improvement in rice.
Chandra T, Gangola S, Jaiswal S, Iquebal MA
Crop Improvement
Rice is the staple food for half the world's population, and these molecular tools could soon produce varieties that survive hotter, drier growing seasons while still filling your bowl.
Inside every plant cell, tiny molecules called microRNAs act like volume knobs, turning genes up or down to control how the plant grows, fights disease, or handles stress. Researchers have now mapped out how these molecular switches work in rice, showing they can be targeted using modern gene-editing tools to make rice tougher, more nutritious, and more productive. This could lead to rice varieties better suited to a changing climate without sacrificing the yield farmers depend on.
Key Findings
miRNAs regulate agronomic traits across three key domains in rice: biotic stress resistance (diseases/pests), abiotic stress tolerance (drought, heat, salinity), and yield/quality traits.
miRNAs show potential as cross-kingdom communicators, meaning rice plants may use them to 'talk' to pathogens or other organisms — opening doors to novel, non-chemical crop protection strategies.
With global population projected to exceed 10 billion people, the review positions miRNA-assisted breeding and genome editing as a viable path to a 'next green revolution' in rice production.
chevron_right Technical Summary
Scientists have reviewed how tiny genetic switches called microRNAs (miRNAs) can be used to engineer rice plants with better yields, stronger disease resistance, and improved ability to withstand drought and other climate stresses — all without the usual trade-offs that come with traditional crop breeding.
Abstract Preview
A central enigma in crop improvement lies in introducing beneficial traits without fitness trade-offs. Rice, the cornerstone of global food security, demands multifaceted genetic innovation to sust...
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Rice is a cereal grain and in its domesticated form is the staple food of over half of the world's population, particularly in Asia and Africa. Rice is the seed of the grass species Oryza sativa —or, much less commonly, Oryza glaberrima. Asian rice was domesticated in China some 13,500 to 8,200 y...