
New Source of Powdery Mildew Resistance Found in Wild Wheat
April 15, 2020Jiangxi Normal University scientists characterized the interaction between powdery mildew fungus (Blumeria graminis f. sp. tritici) and wild wheat (Triticum urartu) at the microscopic level and searched for possible sources of resistance to the fungal infection in the wild wheat. The results of their investigation are published in The Crop Journal.
Researcher Fukai Zhao and team tested 227 accessions of the wild wheat to test their reaction to the fungus. This led to the discovery of a previously unidentified powdery mildew resistance in the collection. The study also led to more information about Pm60, a powdery mildew resistance gene that has at least three functional variants, Pm60, Pm60a, and Pm60b. Through marker-assisted screen targeting, a non-functional version of Pm60a, designated as Pm60a′, was found. When the sequence of Pm60a′ and Pm60a were compared, it revealed that they differed in 58 nucleotide substitutions and one 3-nucleotide deletion. Based on the sequence variations, the researchers developed two molecular markers to differentiate the functional Pm60a allele from the non-functional Pm60a′.
The findings can be used by other researchers in finding more powdery mildew resistance genes that can be used in breeding powdery mildew resistant wheat.
Read more findings in The Crop Journal.
You might also like:
- CRISPR-Mediated Modification of TaEDR1 Homologs Enhances Powdery Mildew Resistance in Wheat
- Genes to Fight Powdery Mildew in Barley Identified
- Transgenic Pm3e Wheat Show High Resistance to Powdery Mildew
The Crop Biotech Update is a weekly newsletter of ISAAA, a not-for-profit organization. The CBU is distributed for free to over 23,000 subscribers worldwide to inform them about the key developments in biosciences, especially in agricultural biotechnology. Your support will help us in our mission to feed the world with knowledge. You can help by donating as little as $10.
-
See more articles:
-
COVID-19 Alerts
- Researchers in Spain Use Biotech to Produce SARS-CoV-2 Vaccine in Plants
-
News from Around the World
- International Research Team Discovers Gene to Develop Fusarium Head Blight Resistant Wheat
- Five Countries Produce More than 90% of Biotech Crops Worldwide
- FSANZ Says New GM Soybeans Safe, Invites Public for Comments
- Rothamsted Research Makes Breakthrough in Fight Against Weeds
- Plant-based Tuna Rolls Out for Sushi Lovers
-
Research Highlights
- New Source of Powdery Mildew Resistance Found in Wild Wheat
- Vitamin E-enriched Sweet Corn Developed
-
Plant Breeding Innovations
- Gene Editing Could Yield Herbicide Tolerant, Non-GM Soybeans
- Cas-CLOVER, an Alternative to CRISPR-Cas9
-
Read the latest: - Crop Biotech Update (January 25, 2023)
- Genome Editing Supplement (January 18, 2023)
- Gene Drive Supplement (January 25, 2023)
-
Subscribe to CBU: - Share
- Tweet