Research Project: Citrus and Date Genetic Resource Conservation and Utilization

Location: National Clonal Germplasm Repository for Citrus

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

Insights into the HLB defense responses in the Australasian citrus species - (Peer Reviewed Journal)

Recently released cultivars enhances California citrus diversity - (Trade Journal)
Siebert Wooldridge, T., Trunnelle, K., Krueger, R., Moreland, B.L., Quijia-Lamina, P., Villalba-Salazar, G., Vidalakis, G., Kahn, T. 2026. Recently released cultivars enhances California citrus diversity. Citrograph. 17 (3).

Diplodia disease - (Peer Reviewed Journal)

Fusarium wilt - (Peer Reviewed Journal)

Black scorch - (Peer Reviewed Journal)

Rapid colorimetric detection of citrus tristeza virus combining portable sample preparation and reverse transcription-loop mediated isothermal amplification - (Peer Reviewed Journal)
Liu, C.W., Bodaghi, S., Keremane, M.L., Kalish, B., Vidalakis, G., Tsutsui, H. 2026. Rapid colorimetric detection of citrus tristeza virus combining portable sample preparation and reverse transcription-loop mediated isothermal amplification. Advances in Sample Preparation. https://doi.org/10.1016/j.slast.2026.100398.

Development and validation of a real-time RT-qPCR assay for the detection of citrus yellow vein clearing virus - (Peer Reviewed Journal)
Osman, F., Bodaghi, S., Krueger, R., Smith, T., Hodzic, E., Mapes, S., Villalba-Salazar, G., Lavagi-Craddock, I., Abrahamian, P., Tian, T., Vidalakis, G. 2026. Development and validation of a real-time RT-qPCR assay for the detection of citrus yellow vein clearing virus. Plant Disease. https://doi.org/10.1094/PDIS-10-25-2122-RE.

Comparative genomics of newly assembled genomes of Phoenix dactylifera L 'Medjool' and 'Deglet Noor' - (Abstract Only)

Updates on the Citrus Genome Database and use of the Breeding Information Management System within citrus breeding programs - (Abstract Only)

Strategies for development of commercially acceptable novel citrus hybrids with durable Huanglongbing resistance - (Abstract Only)

Identification of putative Huanglongbing (HLB) resistance QTLs in Citrus hybrids with Australian Finger lime parentage using SNP-based genotyping and phenotype data - (Abstract Only)

De novo genome assembly of three mandarins (Fallglo, Fortune and Wilking) and their comparative genomic analysis with three wild Australian limes (C. australasica, C. inodora and C. australis) - (Abstract Only)

Comparative genomics of Australian limes and mandarins reveal unique functional groups potentially associated with Huanglongbing resistance - (Abstract Only)

Haplotype analysis of an advanced hybrid population of Citrus australis crossed with Huanglongbing susceptible mandarins to identify recombinants with disease resistance - (Abstract Only)

The National Clean Plant Network, with emphasis on the National Clean Plant Network — Citrus - (Trade Journal)
Krueger, R. 2024. The National Clean Plant Network, with emphasis on the National Clean Plant Network — Citrus. Subtropics newsletter. Fall2024:8-11.

History of citrus classification from Imperial China to the present day - (Abstract Only)

An engineered citrus tristeza virus (T36CA)-based vector induces gene-specific silencing and is graft transmissible to commercial citrus varieties - (Peer Reviewed Journal)
Krueger, R., Chen, A.Y., Zhou, J.S., Liu, S., Xu, H.K., Ng, J.C. 2024. An engineered citrus tristeza virus (T36CA)-based vector induces gene-specific silencing and is graft transmissible to commercial citrus varieties. Phytopathology. 114(11):2453-2462. https://doi.org/10.1094/PHYTO-05-24-0167-R.

Development of a TaqMan assay for the detection of ‘Candidatus Phytoplasma brasiliense’ and assessment by high-resolution melt-curve analysis (HRMA) - (Peer Reviewed Journal)
Lane, J., Bloch, M., Helmick, E.E., Krueger, R., Bahder, B.W. 2024. Development of a TaqMan assay for the detection of ‘Candidatus Phytoplasma brasiliense’ and assessment by high-resolution melt-curve analysis (HRMA). Plant Disease. 108(10):3108-3114. https://doi.org/10.1094/PDIS-04-24-0742-RE.

Chromosome-scale, de novo, phased genome assemblies of three Australian limes: Citrus australasica, C. inodora, and C. glauca - (Peer Reviewed Journal)
Singh, K., Huff, M., Liu, J., Park, J., Rickman, T., Keremane, M.L., Krueger, R., Kunta, M., Roose, M., Dardick, C.D., Staton, M., Ramadugu, C. 2024. Chromosome-scale, de novo, phased genome assemblies of three Australian limes: Citrus australasica, C. inodora, and C. glauca. Plants. 13(11). Article 1460. https://doi.org/10.3390/plants13111460.

Influence of pollination in liquid suspension on the date palm (Phoenix dactylifera L.) Mejhoul cultivar in Mexicali Valley, Mexico - (Peer Reviewed Journal)
Salomon-Torres, R., Acosta-Perez, J., Gutierrez-Pacheco, M., Krueger, R., Ruisanchez-Ortega, Y., Oihabi, A., Abul-Soad, A., Zaid, A. 2024. Influence of pollination in liquid suspension on the date palm (Phoenix dactylifera L.) Mejhoul cultivar in Mexicali Valley, Mexico. Emirates Journal of Food and Agriculture. 36:1-8. https://doi.org/10.3897/ejfa.2024.120425.

Next generation sequencing, and development of a pipeline as a tool for the detection and discovery of citrus pathogens to facilitate safer germplasm exchange - (Peer Reviewed Journal)
Keremane, M.L., Singh, K., Ramadugu, C., Krueger, R., Skaggs, T.H. 2024. Next generation sequencing, and development of a pipeline as a tool for the detection and discovery of citrus pathogens to facilitate safer germplasm exchange. Plants. 13(3). Article 411. https://doi.org/10.3390/plants13030411.

Safety and efficacy of potential herbicides for use in date palm - (Abstract Only)