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ARS Home » Pacific West Area » Corvallis, Oregon » National Clonal Germplasm Repository » Research » Publications at this Location » Publication #365614

Research Project: Management of Temperate-Adapted Fruit, Nut, and Specialty Crop Genetic Resources and Associated Information

Location: National Clonal Germplasm Repository

Title: Identifying variation in red raspberry MLO genes thought to provide resistance to powdery mildew

Author
item Zurn, Jason
item MEIERS, RUTH - Wageningen University
item WARD, JUDD - Driscoll'S
item Finn, Chad
item DOSSETT, MICHAEL - British Columbia Blueberry Council
item Bassil, Nahla

Submitted to: Acta Horticulturae
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 8/9/2019
Publication Date: 7/1/2020
Citation: Zurn, J.D., Meiers, R.C., Ward, J., Finn, C.E., Dossett, M., Bassil, N.V. 2020. Identifying variation in red raspberry MLO genes thought to provide resistance to powdery mildew. Acta Horticulturae. 1277:25-32. https://doi.org/10.17660/ActaHortic.2020.1277.4.
DOI: https://doi.org/10.17660/ActaHortic.2020.1277.4

Interpretive Summary: MLO genes have been shown to provide resistance to powdery mildew pathogens in many plant speces. Powdery mildew has not been well studied in red raspberries and is becoming more of a problem. MLO genes were sequenced in 95 red raspberry varieties from the USDA-ARS National Clonal Germplasm Repository. Two candidate genes thought to provide resistance were identified. In these genes, 22 DNA sequence variations were observed that could indicate the presence of resisistance. Additional work is needed to determine if any of the genes provide resistance.

Technical Abstract: MLO genes have been shown to provide resistance to powdery mildew pathogens in many plant speces. Powdery mildew has not been well studied in red raspberries and is becoming more of a problem. MLO genes were sequenced in 95 red raspberry varieties from the USDA-ARS National Clonal Germplasm Repository. Two candidate genes thought to provide resistance were identified. In these genes, 22 DNA sequence variations were observed that could indicate the presence of resisistance. Additional work is needed to determine if any of the genes provide resistance.