Research Project: Conservation, Management and Distribution of Citrus and Date Genetic Resources and Associated Information

Location: National Clonal Germplasm Repository for Citrus

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

Phytoplasma diseases of palms in the USA - (Experiment Station)
Krueger, R., Bahder, B. 2024. Phytoplasma diseases of palms in the USA. Subtropics newsletter (25)12-19. https://ceventura.ucanr.edu/newsletters/Topics_in_Subtropics100493.pdf

Recent advances in date palm water management - (Trade Journal)
Montazar, A., Krueger, R. 2023. Recent advances in date palm water management. Progressive Crop Consultant. 8:8-12.

Analyzing Huanglongbing-resistant pummelo from India. - (Abstract Only)

New pathogen testing tools for safe movement of citrus germplasm in the Huanglongbing (HLB) era - (Abstract Only)

Multiplex qPCR detection of ‘Candidatus Liberibacter spp.’ and Spiroplasma citri - (Abstract Only)

Analysis of r-genes in Australian limes in comparison to commercial citrus cultivars - (Abstract Only)

Navigating the genetic bottleneck of HLB: exploring the genomes of Australian limes for development of disease resistance - (Abstract Only)

Pan-genome, evolutionary genomics and identification of a super-regulatory gene for fruit taste in the orange subfamily Aurantioideae - (Peer Reviewed Journal)
Huang, Y., He, J., Xu, Y., Zheng, W., Wang, S., Chen, P., Jiang, X., Liu, Z., Wang, L., Wang, X., Liu, S., Lu, Z., Liu, Z., Yu, H., Zhang, Y., Yue, J., Gai, J., Zhou, X., Long, C., Zeng, X., Guo, Y., Zhang, W., Xie, Z., Li, C., Larkin, R.M., Ma, Z., Jiao, W., Zhang, F., Krueger, R., Smith, M., Ming, R., Dweng, X., Xu, Q. 2023. Pan-genome, evolutionary genomics and identification of a super-regulatory gene for fruit taste in the orange subfamily Aurantioideae. Nature Genetics. https://doi.org/10.1038/s41588-023-01516-6.

Policies, regulations, and production of viroid-free clean propagative plant materials for sustainable agriculture - (Book / Chapter)
Lavagi-Craddock, I., Harper, S., Krueger, R., Vidalakis, G. 2023. Policies, regulations, and production of viroid-free clean propagative plant materials for sustainable agriculture. Elsevier. https://doi.org/10.1016/B978-0-323-99688-4.00023-7.

Date Palm - (Book / Chapter)
Al-Khayri, J.M., Jain, S.M., Johnson, D.V., Krueger, R. 2023. Date Palm. Oxfordshire, UK: CAB International. 648 p. https://doi.org/10.1079/9781800620209.0001.

Bioenergy value of seed waste from the Mexican date (Phoenix dactylifera L.) industry - (Peer Reviewed Journal)
Garcia-Gonzalez, C., Salomón-Torres, R., Montero-Alpírez, G., Valdez-Salas, B., Coronado-Ortega, M., Curiel-Alvarez, M., Ayala-Bautista, J., Krueger, R., Pérez-Sánchez, A., Torres-Ramos, R., Samaniego-Sandoval, L. 2022. Bioenergy value of seed waste from the Mexican date (Phoenix dactylifera L.) industry. Biotechnologie, Agronomie, Société et Envrionnement. 26(4):241-251. https://doi.org/10.25518/1780-4507.20026.

In memorium: Chet Roistacher - (Trade Journal)
Krueger, R., Bash, J., Vidalakis, G. 2023. In memorium: Chet Roistacher. Citrograph. 14(1):20-21.

Evaluation of pollen production of common male date palms grown in the mexicali valley, Mexico - (Peer Reviewed Journal)
Salomon-Torres, R., Ortiz-Uribe, N., Krueger, R., Garcia-Vazquez, J., Cohen, Y., Wright, G.C., Samaniego-Sandoval, L. 2022. Evaluation of pollen production of common male date palms grown in the mexicali valley, Mexico. Agriculture. https://doi.org/10.3390/agriculture10020045.

Introduction: The date palm legacy - (Book / Chapter)
Krueger, R., Al-Khayri, J., Jain, S.M., Johnson, D.V. 2023. Introduction: The date palm legacy. In: Al-Khayri, J.M., Jain, S.M., Johson, D.V., Krueger, R.R. Date Palm. Oxfordshire, UK: CAB International. p. 1-21. https://doi.org/10.1079/9781800620209.0001.

Analysis of ‘Marrakesh limetta’ (Citrus x limon var. limetta (Risso) Ollitrault, Curk & R.Krueger) horticultural history and relationships with limes and lemons - (Peer Reviewed Journal)
Rivera, D., Bermudez, A., Obon, C., Alcaraz, F., Rios, S., Sanchez-Balibera, J., Krueger, R. 2021. Analysis of ‘Marrakesh limetta’ (Citrus x limon var. limetta (Risso) Ollitrault, Curk & R.Krueger) horticultural history and relationships with limes and lemons. Scientia Horticulturae. 293. Article 110688. https://doi.org/10.1016/j.scienta.2021.110688.

An improved reference gene for detection of “Candidatus Liberibacter asiaticus” associated with citrus huanglongbing by qPCR and digital droplet PCR assays - (Peer Reviewed Journal)
Keremane, M.L., McCollum, T.G., Roose, M.L., Lee, R.F., Ramadugu, C. 2021. An improved reference gene for detection of “Candidatus Liberibacter asiaticus” associated with citrus huanglongbing by qPCR and digital droplet PCR assays. Plants. 10(10). Article 2111. https://doi.org/10.3390/plants10102111.

Date Palm Pollen: Features, Production, Extraction and Pollination Methods - (Peer Reviewed Journal)
Salomon-Torres, R., Krueger, R., Garcia-Vazquez, J., Villa-Angulo, R., Villa-Angulo, C., Ruiz-Ortiz, N., Samaniego-Sandoval, L. 2021. Date Palm Pollen: Features, Production, Extraction and Pollination Methods. Agronomy. 11(3). Article 504. https://doi.org/10.3390/agronomy11030504.

Use of young plants for biological indexing of graft transmissible pathogens of citrus - (Peer Reviewed Journal)
Lee, R., Keremane, M.L., Ramadugu, C. 2021. Use of young plants for biological indexing of graft transmissible pathogens of citrus. Crop Protection Journal. 143. Article 105524. https://doi.org/10.1016/j.cropro.2020.105524.

Study and detection of citrus viroids in woody hosts - (Book / Chapter)
Krueger, R., Vidalakis, G. 2021. Study and detection of citrus viroids in woody hosts. In: Rao, A.L.N., Lavagi-Craddock, I., Vidalakis, G., editors. Viroids. Methods in Molecular Biology, Volume 2316. New York, NY: Humana Press. p. 3-21. https://doi.org/10.1007/978-1-0716-1464-8_1.

Determination of actual evapotranspiration and crop coeffients of California date palms using the residual of energy balance approach - (Peer Reviewed Journal)
Montazar, A., Krueger, R., Corwin, D.L., Pourreza, A., Little, C., Rios, S., Snyder, R.L. 2020. Determination of actual evapotranspiration and crop coeffients of California date palms using the residual of energy balance approach. Water. 12(8). Article 2253. https://www.mdpi.com/2073-4441/12/8/2253.

Effect of four pollinating sources on nutritional properties if ‘Medjool’ date (Phoenix dactylifera L.) seeds - (Peer Reviewed Journal)
Salomon-Torres, R., Sol-Uribe, J., Valdez-Salas, B., Garcia-Gonzalez, C., Krueger, R., Hernandez-Balbuena, D., Norzagaray-Plascenci, S., Garcia-Vazquez, J., Ortiz-Uribe, N. 2020. Effect of four pollinating sources on nutritional properties if ‘Medjool’ date (Phoenix dactylifera L.) seeds. Agriculture 2020, 10 (45). https://doi.org/10.3390/agriculture10020045.

Date Palm Biology and Utilization - (Book / Chapter)
Krueger R.R. 2021. Date palm (Phoenix dactylifera L.) biology and utilization. In: Al-Khayri J.M., Jain S.M., Johnson D.V., editors. The Date Palm Genome, Vol. 1. Compendium of Plant Genomes. Springer, Cham. p. 3-28. https://doi.org/10.1007/978-3-030-73746-7_1_1.

Genome-wide association mapping of date palm fruit traits - (Peer Reviewed Journal)
Hazzouri, K.M., Gros-Balthazard, M., Flowers, J.M., Copetti, D., Lemansour, A., Lebrun, M., Masmoudi, K., Ferrand, S., Dhar, M.I., Fresquez, S., Roas, U., Zhang, J., Talag, J., Lee, S., Kudrna, D., Powell, R.F., Leitch, I.J., Krueger, R., Wing, R., Amiri, K.M., Purugganan, M.D. 2019. Genome-wide association mapping of date palm fruit traits. Nature Communications. https://doi.org/10.1038/s41467-019-12604-9.

Metabolome and microbiome signatures in the roots of citrus affected by Huanglongbing - (Peer Reviewed Journal)
Padhi, E.M., Maharaj, N., Lin, S., Mishchuk, D.O., Chin, E., Godfrey, K., Foster, E., Polek, M., Leveau, J.H., Slupsky, C. 2019. Metabolome and microbiome signatures in the roots of citrus affected by Huanglongbing. Phytopathology, 109 (12). https://doi.org/10.1094/PHYTO-03-19-0103-R.

Novel subpopulations in date palm (Phoenix dactylifera) identified by population-wide organellar genome sequencing - (Peer Reviewed Journal)
Mahamoud, Y.A., Mathew, L.S., Torres, M.F., Younuskunju, S., Krueger, R., Suhre, K., Malek, J. 2019. Novel subpopulations in date palm (Phoenix dactylifera) identified by population-wide organellar genome sequencing. BMC Genomics. 20:498. https://doi.org/10.1186/s12864-019-5834-7.

The so-called “leaf fleck” virus diseases of citrus - (Trade Journal)
Krueger, R. 2019. The so-called “leaf fleck” virus diseases of citrus. Subtropics newsletter. 19 Spring pages 5-11.

Nutritional Assessment, Phytochemical Composition and Antioxidant Analysis of the Pulp and Seed of Medjool Date Grown in Me´xico - (Peer Reviewed Journal)
Salomon-Torres, R., Ortiz-Uribe, N., Valdez-Salas, B., Rosas-Gonzalez, N., Garcia-Gonzalez, C., Chavez, D., Cordova-Guerreo, I., Diaz-Rubio, L., Haro-Vazquez, M., Mijangos-Montiel, J., Morales-Maza, A., Mahadevan, P., Krueger, R. 2019. Nutritional Assessment, Phytochemical Composition and Antioxidant Analysis of the Pulp and Seed of Medjool Date Grown in Me´xico. PeerJ. 7. Article e6821. https://doi.org/10.7717/peerj.6821.

Date palm status and perspective in Mexico - (Peer Reviewed Journal)
Ortiz-Uribe, N., Salmon-Torres, R., Krueger, R. 2019. Date palm status and perspective in Mexico. Agriculture. 9(3):46. https://doi.org/10.3390/agriculture9030046.

In-grove spatio-temporal spread of citrus huanglongbing and its psyllid vector in relation to rain - (Peer Reviewed Journal)
Shimwela, M.M., Halbert, S.E., Keremane, M.L., Mears, P., Singer, B.H., Lee, W.S., Jones, J.B., Ploetz, R.C., Van Bruggen, A.H. 2019. In-grove spatio-temporal spread of citrus huanglongbing and its psyllid vector in relation to rain. Journal of Phytopathology. 109(3):418-427. https://doi.org/10.1094/PHYTO-03-18-0089-R.

Phoenix phylogency, genetic diversity, distribution and population structure characterized in a world collection of date palm (Phoenix dactylifera) and its wild relatives - (Peer Reviewed Journal)
Chaludavi, S.R., Young, P., Thompson, K., Barhi, B.A., Gajera, B., Naryanan, S., Krueger, R., Bennetzen, J.L. 2018. Phoenix phylogency, genetic diversity, distribution and population structure characterized in a world collection of date palm (Phoenix dactylifera) and its wild relatives. Plant Diversity. https://doi.org/10.1016/j.pld.2018.11.005.