Quantitative trait loci associated with drought stress tolerance in wheat primed with zinc oxide nanoparticles at seed germination and seedling stages.
Mahmoud MRI, Sallam A, Karam MA, Moursi YS
Crop Improvement
PubMedWheat is in the bread, pasta, and cereal you eat every day, and droughts are becoming more frequent — so finding ways to grow drought-tough wheat could help keep grocery prices stable and food on shelves.
Scientists soaked wheat seeds in a solution containing tiny zinc particles before planting them, then watched how the plants grew under drought conditions. The treated seeds sprouted better and grew stronger even when water was scarce. The team also pinpointed the exact spots in the wheat's DNA that control drought survival, which breeders can now use to develop tougher wheat varieties faster.
Key Findings
Zinc oxide nanoparticle seed priming significantly improved germination and seedling establishment under drought stress simulated with 18% PEG solution.
QTL mapping across 3,567 SNP markers identified 12 genetic regions linked to 22 drought-related traits, with 30 candidate genes annotated for stress-response functions.
From 65 wheat lines tested, the 10 most drought-tolerant genotypes were identified using a multi-trait selection index, providing ready-to-use breeding material.
chevron_right Technical Summary
Researchers found that coating wheat seeds with zinc oxide nanoparticles before planting helped the plants survive drought conditions better, and identified specific genetic regions responsible for drought tolerance — paving the way for breeding more resilient wheat varieties.
Abstract Preview
Wheat is a major global staple crop, yet its productivity and nutritional quality are increasingly threatened by drought, raising serious food security concerns. Nanotechnology, particularly zinc o...
open_in_new Read full abstract on PubMedAbstract copyright held by the original publisher.
Species Mentioned
Was this useful?
Chloroplast Genome Editing Eliminates Gluten Immunogenicity in Triticum aestivum
It could mean that people with celiac disease — roughly 1 in 100 worldwide — may one day safely eat bread made from real wheat, without sacrificing the taste...
Wheat is a group of wild and domesticated grasses of the genus Triticum. As cereals, they are cultivated for their grains, which are staple foods around the world. Well-known wheat species and hybrids include the most widely grown common wheat, spelt, durum, emmer, einkorn, and Khorasan or Kamut....