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ARS Home » Pacific West Area » Parlier, California » San Joaquin Valley Agricultural Sciences Center » Crop Diseases, Pests and Genetics Research » Research » Research Project #445292
Research Project: Breeding Prunus and Vitis to Improve Disease Resistance, Fruit Quality, and Climate Change Adaptation

Location: Crop Diseases, Pests and Genetics Research

Publications (Clicking on the reprint icon Reprint Icon will take you to the publication reprint.)

Grape section of the Register of New Fruit and Nut Cultivars List 53 Reprint Icon - (Book / Chapter)
Teh, S., Nelson, L.D., Worthington, M., Owens, C., Rojas Salgado, A., Riaz, S., Karp, D. 2026. Grape section of the Register of New Fruit and Nut Cultivars List 53. HortScience. 61(8):1776-1823. https://doi.org/10.21273/HORTSCI19596-26.

Re-birth of the USDA-ARS citrus breeding program in California - (Trade Journal)
Krugner, R., Riaz, S., Wallis, C.M. 2026. Re-birth of the USDA-ARS citrus breeding program in California. Citrograph. available: www.citrusresearch.org

Haplotype graph analysis of PdR1 uncovers resistance diversity to Pierce’s disease in Vitis arizonica and its hybrids Reprint Icon - (Peer Reviewed Journal)
Massonnet, M., Zaccheo, M., Cochetel, N., Figuerora-Balderas, R., Riaz, S., Cantu, D. 2026. Haplotype graph analysis of PdR1 uncovers resistance diversity to Pierce’s disease in Vitis arizonica and its hybrids. G3: Genes, Genomes, Genetics. 16(7). Article jkag115. https://doi.org/10.1093/g3journal/jkag115.

‘USDA-ARS Parpareil’: A new self-compatible almond suitable for the Nonpareil marketing group Reprint Icon - (Peer Reviewed Journal)
Ledbetter, C., Riaz, S., Krugner, R. 2026. ‘USDA-ARS Parpareil’: A new self-compatible almond suitable for the Nonpareil marketing group. HortScience. 61(3):608-609. https://doi.org/10.21273/HORTSCI19212-26.

‘USDA-ARS Murray Muscat’: A new raisin grape variety Reprint Icon - (Peer Reviewed Journal)
Riaz, S., Krugner, R. 2026. ‘USDA-ARS Murray Muscat’: A new raisin grape variety. HortScience. 61(3):580-581. https://doi.org/10.21273/HORTSCI19211-25.

Natural DOV raisin and virus-resistant grape breeding - (Proceedings)
Riaz, S., Ordonez Aquino, B.J., Dashner, Z.S. 2026. Natural DOV raisin and virus-resistant grape breeding. Meeting Abstract. Presented at the San Joaquin Valley Symposium, January 9, 2026 Parlier, CA.

Dissection of the Ren6 and Ren7 powdery mildew resistance loci in Vitis piasezkii DVIT2027 using phased parental–progeny genomes and intraspecific locus graph reconstruction Reprint Icon - (Peer Reviewed Journal)
Massonnet, M., Figueroa-Balderas, R., Cochetel, N., Riaz, S., Pap, D., Walker, M.A., Cantu, D. 2025. Dissection of the Ren6 and Ren7 powdery mildew resistance loci in Vitis piasezkii DVIT2027 using phased parental–progeny genomes and intraspecific locus graph reconstruction. G3: Genes, Genomes, Genetics. 15(12). Article jkaf250. https://doi.org/10.1093/g3journal/jkaf250.

Murray muscat - (Germplasm Registration)
Riaz, S. 2025. Murray muscat. USDA, Agricultural Research Service, Cultivar Release. Available:

Global genetic diversity and population structure of grapevine powdery mildew - (Abstract Only)
Ordonez Aquino, B.J., Mahaffee, W.F., Cadle Davidson, L.E., Dashner, Z.S., Walker, A., Riaz, S. 2025. Global genetic diversity and population structure of grapevine powdery mildew. American Journal of Enology and Viticulture. Presented at the American society of Enology and Viticulture, June 16-19, 2025, Monterey, CA.