Research Project: Breeding Prunus and Vitis Scions for Improved Fruit Quality and Durable Pest Resistance

Location: Crop Diseases, Pests and Genetics Research

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

Genetic mapping of Pierce’s disease resistance in Germplasm collected from the Southwestern US and Mexico - (Peer Reviewed Journal)

Multigenic resistance to Xylella fastidiosa in wild grapes (Vitis sps.) and its implications within a changing climate - (Peer Reviewed Journal)
Morales-Cruz, A., Aguirre-Liguori, J., Massonnet, M., Minio, A., Zaccheo, M., Cochetel, N., Walker, A., Riaz, S., Zhou, Y., Cantu, D., Gaut, B.S. 2023. Multigenic resistance to Xylella fastidiosa in wild grapes (Vitis sps.) and its implications within a changing climate. Communications Biology. 6. Article 580. https://doi.org/10.1038/s42003-023-04938-4.

Adaptive and maladaptive introgression in grapevine domestication - (Peer Reviewed Journal)
Xiao, H., Liu, Z., Wang, N., Long, Q., Cao, S., Huang, G., Liu, W., Peng, Y., Riaz, S., Walker, M.A., Gaut, B.S., Zhou, Y. 2023. Adaptive and maladaptive introgression in grapevine domestication. Proceedings of the National Academy of Sciences (PNAS). 120(24). Article e2222041120. https://doi.org/10.1073/pnas.2222041120.

Past, present and future of Grape Breeding Program at the San Joaquin Valley Ag Center in Parlier, CA - (Trade Journal)
Riaz, S. 2023. Past, present and future of Grape Breeding Program at the San Joaquin Valley Ag Center in Parlier, CA. Grape & Wine Magazine. 1(2).

The grape powdery mildew resistance loci Ren2, Ren3, Ren4D, Ren4U, Run1, Run1.2b, Run2.1, and Run2.2 activate different transcriptional responses to Erysiphe necator - (Peer Reviewed Journal)
Massonnet, M., Riaz, S., Pap, D., Figueroa-Balderas, R., Walker, M.A., Cantu, D. 2022. The grape powdery mildew resistance loci Ren2, Ren3, Ren4D, Ren4U, Run1, Run1.2b, Run2.1, and Run2.2 activate different transcriptional responses to Erysiphe necator. Frontiers in Plant Science. 13. Article 1096862. https://doi.org/10.3389/fpls.2022.1096862.

Genetic characterization of Pierce’s disease resistance in a Vitis arizonica/monticola wild grapevine - (Peer Reviewed Journal)
Huerta-Acosta, K., Riaz, S., Tenscher, A., Walker, M.A. 2022. Genetic characterization of Pierce’s disease resistance in a Vitis arizonica/monticola wild grapevine. American Journal of Enology and Viticulture. 74(1). Article 0740003. https://doi.org/10.5344/ajev.2022.22021.

Molecular and functional characterization of two RGA type genes in the PdR1b locus for Pierce’s disease resistance in Vitis arizonica/ candicans - (Peer Reviewed Journal)
Aguero, C.B., Riaz, S., Tenscher, A.C., Bistue, C., Walker, M.A. 2022. Molecular and functional characterization of two RGA type genes in the PdR1b locus for Pierce’s disease resistance in Vitis arizonica/ candicans. Plant Cell Tissue and Organ Culture. 151:497-510. https://doi.org/10.1007/s11240-022-02366-6.

Haplotype-resolved powdery mildew resistance loci reveal the impact of heterozygous structural variation on NLR genes in Muscadinia rotundifolia - (Peer Reviewed Journal)
Massonnet, M., Vondras, A.M., Cochetel, N., Riaz, S., Pap, D., Minio, A., Figueroa-Balderas, R., Walker, M.A., Cantu, D. 2022. Haplotype-resolved powdery mildew resistance loci reveal the impact of heterozygous structural variation on NLR genes in Muscadinia rotundifolia. G3, Genes/Genomes/Genetics. 12(8). Article jkac148. https://doi.org/10.1093/g3journal/jkac148.

Rotting grapes don't improve with age: cluster rot disease complexes, management, and future prospects - (Peer Reviewed Journal)
Crandall, S., Spychalla, J., Crouch, U., Acevedo, F., Naegele, R.P., Miles, T. 2022. Rotting grapes don't improve with age: cluster rot disease complexes, management, and future prospects. Plant Disease. 106(8):2013-2025. https://doi.org/10.1094/PDIS-04-21-0695-FE.

'Yorizane': A new self-compatible almond cultivar suitable for California production - (Peer Reviewed Journal)
Ledbetter, C.A. 2021. 'Yorizane': A new self-compatible almond cultivar suitable for California production. HortScience. 56(9):1142-1143. https://doi.org/10.21273/HORTSCI16066-21.

Grape powdery mildew spray programs affect non-target fungi populations differentially in California vineyards - (Abstract Only)

A diagnostic guide for Phytophthora capsici infecting vegetable crops - (Other)
Parada-Rojas, C., Granke, L., Naegele, R.P., Hansen, Z., Hausbeck, M., Kousik, C.S., Mcgrath, M., Smart, C., Quesada-Ocampo, L. 2021. A diagnostic guide for Phytophthora capsici infecting vegetable crops. Plant Disease. Available: https://doi.org/10.1094/PHP-02-21-0027-FI.

Population genetic analyses of Botrytis cinerea isolates from Michigan vineyards using a high-throughput marker system approach - (Peer Reviewed Journal)
Naegele, R.P., Abdelsamad, N.A., Alzohairy, S., Saito, S., Delong, J.A., Miles, T. 2021. Population genetic analyses of Botrytis cinerea isolates from Michigan vineyards using a high-throughput marker system approach. Frontiers in Microbiology. 12:660874. https://doi.org/10.3389/fmicb.2021.660874.

Phytophthora root rot resistance and its correlation with fruit rot resistance in Capsicum annuum - (Peer Reviewed Journal)
Naegele, R.P., Hausbeck, M. 2020. Phytophthora root rot resistance and its correlation with fruit rot resistance in Capsicum annuum. HortScience. 55(12):1931-1937. https://doi.org/10.21273/HORTSCI15362-20.

Fungicide resistance profiles of Botrytis cinerea isolates from Michigan vineyards and development of a TaqMan assay for detection of fenhexamid resistance - (Peer Reviewed Journal)
Alzohairy, S., Gillet, J., Saito, S., Naegele, R.P., Xiao, C., Miles, T. 2021. Fungicide resistance profiles of Botrytis cinerea isolates from Michigan vineyards and development of a TaqMan assay for detection of fenhexamid resistance. Plant Disease. 105(2):285-294. https://doi.org/10.1094/PDIS-05-20-1087-RE.

Getting the perfect cluster shape: defining traits and developing DNA markers - (Trade Journal)
Naegele, R.P., Clark, M., Martinson, T. 2020. Getting the perfect cluster shape: defining traits and developing DNA markers. American Vineyard. 29(6):22-25.

Genetic structure of a worldwide germplasm collection of Prunus armeniaca L. reveals three major diffusion routes for the varieties issued from the species’ centre of origin - (Peer Reviewed Journal)
Bourguiba, H., Scotti, I., Sauvage, C., Zhebentvaeva, T., Ledbetter, C.A., Krska, B., Remay, A., D'Onofrio, C., Iketani, H., Christen, D., Krichen, L., Trifi-Farah, N., Liu, W., Roch, G., Audergon, J. 2020. Genetic structure of a worldwide germplasm collection of Prunus armeniaca L. reveals three major diffusion routes for the varieties issued from the species’ centre of origin. Frontiers in Plant Science. https://doi.org/10.3389/fpls.2020.00638.

Register of new fruit and nut varieties list 50 - (Literature Review)
Ledbetter, C.A. 2020. Register of new fruit and nut varieties list 50. HortScience. 55(7)1164-1201. https://doi.org/10.21273/HORTSCI50register-20.

Update on USDA table grape breeding efforts in the San Joaquin Valley - (Proceedings)
Ledbetter, C.A. 2020. Update on USDA table grape breeding efforts in the San Joaquin Valley. Meeting Proceedings for 2020 Table Grape Seminar, Feb 27, 2020, Visalia, CA.

Identification of vitis cultivars, rootstocks and species expressing resistance to a Planococcus mealybug - (Peer Reviewed Journal)
Naegele, R.P., Daane, K.M., Cousins, P. 2020. Identification of vitis cultivars, rootstocks and species expressing resistance to a Planococcus mealybug. Insects. 11(2):86. https://doi.org/10.3390/insects11020086.

Population genetics and fungicide resistance of Botrytis cinerea on Vitis and Prunus spp. in California - (Peer Reviewed Journal)
Naegele, R.P., Delong, J.A., Saito, S., Xiao, C. 2020. Population genetics and fungicide resistance of Botrytis cinerea on Vitis and Prunus spp. in California. Phytopathology. 110(3):694-702. https://doi.org/10.1094/PHYTO-09-19-0362-R.

Genotypic diversity among Botrytis Cinerea isolates from California - (Abstract Only)
Delong, J.A., Saito, S., Xiao, C., Naegele, R.P. 2019. Genotypic diversity among Botrytis Cinerea isolates from California. Phytopathology. 109(10):171.

Advances in breeding of Cucumber and Watermelon - (Book / Chapter)

‘Solbrio’ table grape - (Peer Reviewed Journal)
Ledbetter, C.A. 2019. ‘Solbrio’ table grape. HortScience. 54(10):1864-1865. https://doi.org/10.21273/HORTSCI14311-19.

Cucurbits - (Book / Chapter)

The genetic dissection of the natural dry-on-vine (NDOV) trait in grapevine - (Proceedings)
Fresnedo Ramirez, J., Lee, S.A., Ledbetter, C.A. 2019. The genetic dissection of the natural dry-on-vine (NDOV) trait in grapevine. Acta Horticulturae. 1248:409-416.

Geographic distribution of isolate virulence in Xylella fastidiosa collected from grape in California and its effect on host resistance - (Proceedings)
Naegele, R.P., De La Fuente, L., Almeida, R. 2018. Geographic distribution of isolate virulence in Xylella fastidiosa collected from grape in California and its effect on host resistance. CDFA Pierce's Disease Control Program Research Symposium. p. 62.