CROP BIOTECH UPDATE
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A weekly summary of world developments in agri-biotech for developing countries, produced by the Global Knowledge Center on Crop Biotechnology, International Service for the Acquisition of Agri-biotech Applications SEAsiaCenter (ISAAA)
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June 3, 2026

In This Week’s Issue:

News

New Breeding Technologies
• Rothamsted Research Drills First Precision-Bred Crop in Historic Field Trial
• Wheat Gene Discovery Boosts Iron Accumulation for Better Nutrition



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NEWS
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New Breeding Technologies
ROTHAMSTED RESEARCH DRILLS FIRST PRECISION-BRED CROP IN HISTORIC FIELD TRIAL

Rothamsted Research has officially sown the UK's first crop under a new Precision Bred Organism (PBO) Release Notice, marking a major milestone for agricultural biotechnology. The proof-of-concept field trial has sown the oilseed crop Camelina sativa, to evaluate the real-world performance of gene-edited varieties. This historic planting is the first to be registered under the framework established by the Genetic Technology (Precision Breeding) Act 2023 and the subsequent 2025 regulations.

The research team, led by Dr. Smita Kurup and Dr. Mollie Langdon, used CRISPR-Cas9 gene editing technology to precisely target genes that regulate cell division in the outer layers of the plant's ovule. By tweaking these specific genetic pathways, scientists aim to increase the overall size of the developing ovules, which in turn should yield larger seeds with enhanced oil content. Crucially, the resulting deletions and insertions mirror genetic variations that could otherwise occur naturally or through traditional cross-breeding methods.

As the trial progresses through the current season, researchers hope to translate their findings from Camelina to oilseed rape, a cornerstone crop for UK vegetable oil production. If the field results mirror the team's laboratory success, the technique could eventually be adopted by commercial growers to significantly boost domestic oilseed yields. Project leaders emphasized that field trials like this are a vital bridge to understanding how precision breeding can practically support farmers in developing more sustainable, high-yielding crops for the future.

For details, read the article on the Rothamsted Research website.

Experts from Henan Agricultural University in China have identified a key wheat gene that helps regulate iron uptake and storage. The study focuses on the transcription factor TaPIL1, which plays a central role in activating iron-related responses in wheat plants. Their study is a breakthrough that could support efforts to breed more nutritious wheat varieties and address iron deficiency anemia.

The researchers found that the expression level of TaPIL1 increases when the plant is exposed to iron deficiency treatment. In their study, the findings showed that the TaPIL1-5D overexpressed (OE) plant lines accumulated more iron content in the root, shoot, and white flour from the grain compared with the wild-type (WT) plants. They also found that Fe storage-related genes, such as NRAMP3 and Fer1, had higher expression levels in OE lines than in WT.

The study revealed that the seedlings and grains of wheat varieties carrying the elite of TaPIL1-5B showed higher expression of the TaNRAMP3 and TaFer1 genes and increased iron content compared with non-elite haplotype wheat varieties. Overall, the findings indicate that the TaPIL1–TaNRAMP3/TaFer1 module plays a key role in iron accumulation in wheat and could be used in future wheat breeding programs to enhance iron content.

For more information, read the study from SSRN.