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United States Department of Agriculture

Agricultural Research Service

Related Topics

Robert R Krueger
National Clonal Germplasm Repository for Citrus & Dates
Horticulturist

Phone: (951) 827-4399
Fax: (951) 827-4398
1060 MARTIN LUTHER KING BLVD
RIVERSIDE, CA, 92521

Projects
Management and Characterization of Citrus and Date Genetic Resources and Associated Information
Appropriated (D)
  Accession Number: 424578
Identifying Genetic Relationships among Citrus and Citrus Relatives Using Molecular Markers
Specific Cooperative Agreement (S)
  Accession Number: 424871
Acquisition and Evaluation of Citrus and Citrus Relatives in the Citrus Variety Collection
Specific Cooperative Agreement (S)
  Accession Number: 424472

Publications (Clicking on the reprint icon Reprint Icon will take you to the publication reprint.)
Past and future of a century old Citrus Tristeza Virus collection: A California citrus germplasm tale - (Peer Reviewed Journal)
Wang, J., Bozan, O., Kwon, S., Rucker, T., Yokomi, R.K., Lee, R.F., Folimonova, S., Greer, G., Krueger, R., Bash, J., Vidalakis, G. 2013. Past and future of a century old Citrus Tristeza Virus collection: A California citrus germplasm tale . Frontiers in Microbiology. 4:366. DOI: 10.3389/fmicb.2013.00366.
Cryopreservation of citrus in the USDA-ARS national plant germplasm system collection - (Abstract Only)
Bonnart, R.M., Shepherd, A., Lee, R.F., Krueger, R., Volk, G.M. 2013. Cryopreservation of citrus in the USDA-ARS national plant germplasm system collection. Meeting Abstract. 2nd International Symposium on Plant Cryopreservation. p.62.
Past and future of a century old Citrus Tristeza virus collection: A California citrus germplasm tale - (Abstract Only)
Wang, J., Orhan, B., Kwon, S., Rucker, T., Yokomi, R.K., Lee, R.F., Folimonova, S.Y., Greer, G., Krueger, R., Bash, J., Vidalakis, G. 2013. Past and future of a century old Citrus Tristeza virus collection: A California citrus germplasm tale. Frontiers in Microbiology. Available:http://www.dx.doi.org/10.3389/fmicb.2013.00366.
Cryopreservation of citrus for long-term conservation - (Abstract Only)
Volk, G.M., Bonnart, R.M., Shepherd, A., Krueger, R., Lee, R.F. 2012. Cryopreservation of citrus for long-term conservation. XII International Citrus Congress, November 18 - 23, 2012, Valencia , Spain. Meeting Abstract. Paper No. S01O02.
Field ID guide to citrus relative hosts of Asian citrus psyllid & Huanglongbing - (Book / Chapter)
Siebert, T., Krueger, R., Karp, D., Kahn, T. 2013. In: Polek, M., Batkin, T. (eds.). Field ID guide to citrus relative hosts of Asian citrus psyllid & Huanglongbing. Visalia, CA: Citrus Research Board. p. 1-62.
Conservation of US citrus collections using cryopreservation - (Abstract Only)
Volk, G.M., Bonnart, R.M., Krueger, R., Lee, R.F. 2012. Conservation of US citrus collections using cryopreservation. Meeting Abstract. Available: http://ashs.org/abstracts/m/abstracts12/abstract_id_10287.html.
Cryopreservation of Citrus shoot tips using micrografting for recovery - (Peer Reviewed Journal)
Volk, G.M., Bonnart, R.M., Krueger, R., Lee, R.F. 2012. Cryopreservation of Citrus shoot tips using micrografting for recovery. CryoLetters. 33(6):418-426.
De novo genome sequencing and comparative genomics of the date palm Phoenix dactylifera) - (Peer Reviewed Journal)
Al-Dous, E.K., George, B., Ai-Mahmoud, M.E., Al-Jaber, M.Y., Wang, H., Salameh, Y.M., Al-Azwani, E.K., Chaludavi, S., Pontaroli, A.C., Debarry, J., Arondel, V., Ohlrogge, J., Saie, I.J., Bennetzen, J.L., Krueger, R., Malek, J.A. 2011. De novo genome sequencing and comparative genomics of the date palm Phoenix dactylifera). Nature Biotechnology. 29:521-527.
Background and initial evaluations of recently introduced cultivars distributed by the Citrus Clonal Protection Program - (Trade Journal)
Siebert, T.J., Vidalakis, G., Krueger, R., Bash, J., Kahn, T. 2011. Background and initial evaluations of recently introduced cultivars distributed by the Citrus Clonal Protection Program. Citrograph. 2(5):28-35.
Good Bud, Bad Bud - (Proceedings)
Krueger, R., Lovatt, C.J. 2011. Good Bud, Bad Bud. Society of Citrus Nurserymen International Congress. CD.
Date Palm Germplasm - (Book / Chapter)
Krueger, R. 2011. Date Palm Germplasm. In: Jain, S.M., Al-Khayri, J. M., Johnson, D. V., editors. Date Palm Biotechnology. 1st Edition. New York, NY: Springer. p. 313-336.
Coconut, date and oil palm genomics - (Book / Chapter)
Meerow, A.W., Krueger, R., Singh, R., Ti, L.L., Ithnin, M., Li, L.O. 2012. Coconut, date and oil palm genomics. In: Schnell, R.J, Priyadarsham, P.M., editors. Genomics of Tree Crops. New York, NY: Springer. p. 299-351.
Recent Advances in Aurantioideae Taxonomy - (Proceedings) - (31-Oct-10)
Citrus quarantine, sanitary and certification programs in the USA. Prevention of introduction and distribution of citrus diseases - (Trade Journal)
Vidalakis, G., Dagraca, J., Dixon, W., Ferrin, D., Kesinger, M., Krueger, R., Lee, R.F., Olive, J., Polek, M., Sieburth, P., Williams, L., Wright, G. 2010. Citrus quarantine, sanitary and certification programs in the USA. Prevention of introduction and distribution of citrus diseases. 1. Citrus quarantine and introduction process. Citrograph. 1(3):26-35. 2. Highlights of new California citrus nursery regulations. Citrograph. 1(4):27-39.
Cryopreservation and Cryotherapy of Citrus Cultivars - (Abstract Only)
Volk, G.M., Krueger, R., Lee, R.F. 2010. Cryopreservation and Cryotherapy of Citrus Cultivars. Meeting Abstract National Citrus Research Coordination Symposium, Denver, Colorado, June 16-18, 2010.
Environmental, Physiological, and Cultural Injuries and Genetic Disorders - (Book / Chapter) - (01-May-10)
Register of new fruit and nut cultivars list 45 - (Peer Reviewed Journal)
Bowman, K.D., McCollum, T.G., Stover, E.W., Kahn, T.L., Roose, M.L., Krueger, R.R., Wright, G.C. 2010. Citrus. In: J.R. Clarke and C.E. Finn, eds. Register of new fruit and nut cultivars list 45. HortScience. 45:716-756.
Descriptions of new varieties recently distributed from the Citrus Clonal Protection Program - (Trade Journal)
Siebert, T., Krueger, R., Kahn, T.L., Bash, J.A., Vidalakis, G. 2010. Descriptions of new varieties recently distributed from the Citrus Clonal Protection Program. Citrograph. 1(2):20-26.
What phylogeny and gene genealogy analyses reveal about homoplasy in citrus microsatellite alleles Reprint Icon - (Peer Reviewed Journal)
Barkley, N.L., Krueger, R., Federici, C.T., Roose, M.L. 2009. What phylogeny and gene genealogy analyses reveal about homoplasy in citrus microsatellite alleles. Plant Systematics and Evolution. 282:71-86.
Phytosanitary Status of California Citrus - (Proceedings) - (01-Oct-08)
Relationships Between Oases and Germplasm Collections - (Proceedings) - (16-Jul-08)
Nuevas Variedades y Patrones de Citricos/New Citrus Varieties and Rootstocks - (Proceedings)
Krueger, R. 2008. Nuevas Variedades y Patrones de Citricos/New Citrus Varieties and Rootstocks. Memorias, XII Simposio Internacional de Citricultura.
Stubborn Disease of Citrus in California - (Popular Publication)
Rangel, B., Krueger, R. 2007. Stubborn Disease of Citrus in California, Subtropics newsletter. 5(4):2-5, 2007, Trade Publication.p
The Date Palm (Phoenix Dactylifera L.); Overview of Biology, Uses, Varieties, and Genetics - (Peer Reviewed Journal)
Chao, C.T., Krueger, R. 2007. The date palm (phoenix dactylifera l.); overview of biology, uses, varieties, and genetics. HortScience 42:1077-1082.
Fruit and Nut Genebanks in the US National Plant Germplasm System - (Popular Publication)
Postman, J.D., Hummer, K.E., Stover, E.W., Krueger, R., Forsline, P.L., Grauke, L.J., Zee, F.T., Ayala Silva, T., Irish, B.M. 2007. Fruit and Nut Genebanks in the US National Plant Germplasm System. Pomona.
Fruit and Nut Genebanks in the Us National Plant Germplasm System - (Peer Reviewed Journal)
Postman, J.D., Hummer, K.E., Stover, E.W., Krueger, R., Forsline, P.L., Grauke, L.J., Zee, F.T., Ayala Silva, T., Irish, B.M. 2006. Fruit and nut genebanks in the us national plant germplasm system. HortScience. 41(5):1188-1194.
Assessing Genetic Diversity and Population Structure in a Citrus Germplasm Collection Utilizing Simple Sequence Repeat Markers (Ssrs) - (Peer Reviewed Journal)
Barkley, N.L., Roose, M.L., Krueger, R., Frederici, C.T. 2006. Assessing genetic diversity and population structure in a citrus germplasm collection utilizing simple sequence repeat markers (ssrs). Theoretical and Applied Genetics. 112:1519-1531.
History and Current Status of Date Palm (Phoenix Dactylifera L.) Research in the Usa - (Proceedings)
Krueger, R. 2007. History and current status of date palm (phoenix dactylifera l.) research in the usa. Acta Horticulturae.
Nutritional Dynamics of Date Palm (Phoenix Dactylifera L.) - (Proceedings)
Krueger, R. 2007. Nutritional dynamics of date palm (phoenix dactylifera l.). Acta Horticulturae.
Date Palm - (Book / Chapter)
Chao, C.T., Krueger, R. 2007. Date palm. Encyclopedia of Fruits and Nuts. Edited by J. Janick. Pages 138-151
Management of Citrus Germplasm/manejo DE Germoplasma - (Proceedings)
Krueger, R. 2005. Management of citrus germplasm/manejo de germoplasma. Memorias, IX Simposio Internacional de Citricultura: Sanidad y.
Obtaining New Citrus Varieties/obstencion DE Nuevas Variedades DE Citricos - (Proceedings)
Krueger, R. 2005. Obtaining new citrus varieties/obstencion de nuevas variedades de citricos. Memorias, IX Simposio Internacional de Citricultura: Sanidad y.
Dweet Mottle Virus and Citrus Leaf Blotch Virus - (Popular Publication)
Krueger, R., Lee, R.F., Bash, J.A. 2005. Dweet mottle virus and citrus leaf blotch virus. Subtropics Newsletter V3 No. 1, Pages 7-9.
Dweet Mottle Virus and Citrus Leaf Blotch Virus in California - (Other)
Krueger, R., Bash, J.A., Rangel, B., Lee, R.F. 2005. Dweet mottle virus and citrus leaf virus in california. International Organization of Citrus Virologists Newsletter.
Phytosanitary Status of California Citrus - (Abstract Only)
Krueger, R., Bash, J., Lee, R.F. 2007. Phytosanitary status of california citrus. International Organization of Citrus Virologists Abstracts, Page 102.
Current Research on Spiroplasma Citri in California - (Abstract Only)
Rangel, B., Krueger, R., Lee, R.F. 2007. Current research on spiroplasma citri in california. International Organization of Citrus Virologists Abstracts, Page 88.
Stubborn: Genetic Diversity of Spiroplasma Citri in California - (Proceedings)
Krueger, R. 2007. Stubborn: Genetic Diversity of Spiroplasma Citri in California. International Society of Citriculture Proceedings 806-809
Diversity and Phylogenetic Relationships of the Citrus Varieties Collection - (Proceedings)
Barkley, N.A., Roose, M.L., Krueger, R. 2007. Diversity and Phylogenetic Relationships of the Citrus Varieties Collection. International Society of Citriculture Proceedings 178-182
Cooperation in the Conservation of Citrus Genetic Resources: Riverside, California - (Proceedings)
Kahn, T.L., Bier, O.J., Semancik, J.S., Bash, J.A., Roose, M.L., Krueger, R. 2007. Cooperation in the Conservation of Citrus Genetic Resources: Riverside, California. International Society of Citriculture Proceedings 174-177.
Genetic Analysis of Egyptian Date (Phoenix Dactylifera L.) Accessions Using Aflp Markers - (Peer Reviewed Journal)
El-Assar, A.M., Krueger, R., Devanand, P.S., Chao, C.T. 2005. Genetic analysis of egyptian date (phoenix dactylifera l.) accessions using aflp markers. Genetic Resources and Crop Evolution.
Use of Molecular Markers in the Management of Citrus Germplasm Resources - (Peer Reviewed Journal)
Krueger, R., Roose, M.L. 2003. Use of molecular markers in the management of citrus germplasm resources. Journal of the American Society for Horticultural Science. 128:827-837.
Citrus Germplasm Resources and Their Uses - (Book / Chapter)
Krueger, R., Navarro, L. 2007. Citrus germplasm resources and their uses. Book Chapter. Pp 45-140: Khan IA (ed) Citrus Genetics, Breeding and Biotechnology. Published by CABI
Bioflavonoid Profile of Exotic Citrus Species - (Proceedings)
Botero-Omary, M., Krueger, R., Li, Y. 2004. Bioflavonoid profile of exotic citrus species. Acta Horticulturae 629: 449-455
Stubborn: Genetic Diversity of Spiroplasma Citri in California - (Abstract Only)
Rangel, B., Krueger, R. 2004. Stubborn: genetic diversity of spiroplasma citri in california. International Society of Citriculture Abstracts, p. 95
Diversity and Phylogenetic Relationships of the Citrus Variety Collection - (Abstract Only)
Barkley, N.A., Roose, M.L., Krueger, R. 2004. Diversity and phylogenetic relationships of the citrus variety collection. International Society of Citriculture Abstracts, 10th International Congress, p. 83
Cooperation in the Conservation of Citrus Genetic Resources: Riverside, California - (Abstract Only)
Kahn, T.L., Bier, O.J., Roose, M.L., Semancik, J.S., Bash, J.A., Krueger, R. 2004. Cooperation in the conservation of citrus genetic resources: riverside, california. International Society of Citriculture Abstracts, 10th International Congress, p. 83
Genetic Analyses of Date Palms (Phoenix Dactylifera L.) from Egypt Using Fluorescent - Aflp Markers - (Abstract Only)
El-Assar, A.M., Krueger, R., Devanand, P.S., Chao, T.C. 2003. Genetic analyses of date palms (Phoenix dactylifera l.) from Egypt using fluorescent - aflp markers. Hortscience. 38:734.
Drought Tolerance of 27 Citrus Rootstocks Growing in a Nursery - (Abstract Only)
Curti-Diaz, S., Guerra-Hernandez, C., Maza-Lopez, I., Loredo-Salazar, R., Sanchez-Gonzalez, A., Krueger, R. 2004. Drought tolerance of 27 citrus rootstocks growing in a nursery. International Society of Citriculture Abstracts. p145.
Flooding Tolerance of 25 Citrus Rootstocks Growing in a Nursery - (Abstract Only)
Curti-Diaz, S., Maza-Lopez, I., Guerra-Hernandez, C., Loredo-Salazar, R., Sanchez-Gonzalez, A., Krueger, R. 2004. Flooding tolerance of 25 citrus rootstocks growing in a nursery. International Society of Citriculture Abstracts. p43.
Fruit: Citrus Fruit - (Book / Chapter)
KRUEGER, R. FRUIT: CITRUS FRUIT. BOOK CHAPTER. 2003.
Fruit: Dates - (Book / Chapter)
KRUEGER, R. FRUIT: DATES. BOOK CHAPTER. 2003.
Bioflavonoid Profile in Exotic Citrus Species - (Abstract Only)
BOTERO OMARY, M., KRUEGER, R., LI, Y., DAVID, P. BIOFLAVONOID PROFILE IN EXOTIC CITRUS SPECIES. ABSTRACT OF INTERNATIONAL HORTICULTURAL CONGRESS. 2002.
National Clonal Germplasm Repository for Citrus and Dates: Brown Citrus Aphid in Yucatan, Mexico - (Other)
KRUEGER, R. NATIONAL CLONAL GERMPLASM REPOSITORY FOR CITRUS AND DATES: BROWN CITRUS APHID IN YUCATAN, MEXICO. INTERNATIONAL ORGANIZATION OF CITRUS VIROLOGISTS NEWSLETTER. 2001.
The Clementine Mandarin - (Trade Journal)
GUMPF, D.J., KRUEGER, R., BASH, J.A. THE CLEMENTINE MANDARIN. CALIFORNIA CITRUS MUTUAL JOURNAL. 2001.
The California Citrus Certification Program Supports the Industry - (Proceedings)
KRUEGER, R. THE CALIFORNIA CITRUS CERTIFICATION PROGRAM SUPPORTS THE INDUSTRY. SOCIETY OF CITRUS NURSERYMEN INTERNATIONAL CONGRESS. 2001.
Date Palm Germplasm: Overview and Utilization in the Usa - (Proceedings)
KRUEGER, R. DATE PALM GERMPLASM: OVERVIEW AND UTILIZATION IN THE USA. PROCEEDINGS INTERNATIONAL CONFERENCE ON DATE PALMS. 2001.
Shoot-Tip Micro-Grafting for Rescue Or Therapy of Field-Grown Citrus Germplasm Accessions - (Proceedings)
KRUEGER, R., BALLANCE, P.M., KAHN, T.L., BIER, O.J., GUMPF, D.J., BASH, J.A. SHOOT-TIP MICRO-GRAFTING FOR RESCUE OR THERAPY OF FIELD-GROWN CITRUS GERMPLASM ACCESSIONS. INTERNATIONAL SOCIETY OF CITRICULTURE PROCEEDINGS. 2003.
Use of Molecular Markers in Management of Citrus Germplasm Resources - (Proceedings)
KRUEGER, R., GULSEN, O., ROOSE, M.L. USE OF MOLECULAR MARKERS IN MANAGEMENT OF CITRUS GERMPLASM RESOURCES. INTERNATIONAL SOCIETY OF CITRICULTURE PROCEEDINGS. 2003.
Assessing Genetic Diversity in Citrus by Utilizing Molecular Markers - (Proceedings)
BARKLEY, N.A., ROOSE, M.L., KRUEGER, R. ASSESSING GENETIC DIVERSITY IN CITRUS BY UTILIZING MOLECULAR MARKERS. INTERNATIONAL SOCIETY OF CITRICULTURE PROCEEDINGS. 2003.
The Uc Riverside Citrus Variety Collection: Cornerstone of the California Citrus Genetic Resources Conservation and Utilization System - (Proceedings)
KAHN, T.L., BIER, O.J., ROOSE, M., KRUEGER, R., GUMPF, D.J. THE UC RIVERSIDE CITRUS VARIETY COLLECTION: CORNERSTONE OF THE CALIFORNIA CITRUS GENETIC RESOURCES CONSERVATION AND UTILIZATION SYSTEM. INTERNATIONAL SOCIETY OF CITRICULTURE PROCEEDINGS. 2003.
Use of Molecular Markers in Management of Citrus Germplasm Resources - (Abstract Only)
KRUEGER, R., GULSEN, O., ROOSE, M.L. USE OF MOLECULAR MARKERS IN MANAGEMENT OF CITRUS GERMPLASM RESOURCES. INTERNATIONAL SOCIETY OF CITRICULTURE ABSTRACTS. 2000.
Shoot-Tip Micrografting for Rescue Or Therapy of Field-Grown Citrus Germplasm Accessions - (Abstract Only)
KRUEGER, R., KAHN, T.L., GUMPF, D.J., BALLANCE, P.M., BIER, O.J., BASH, J.A. SHOOT-TIP MICROGRAFTING FOR RESCUE OR THERAPY OF FIELD-GROWN CITRUS GERMLASM ACCESSIONS. INTERNATIONAL SOCIETY OF CITRICULTURE ABSTRACTS. 2000.
The Uc Riverside Citrus Variety Collection, Cornerstone of the California Citrus Genetic Resources Conservation and Utilization System - (Abstract Only)
KAHN, T.L., BIER, O.J., KRUEGER, R., ROOSE, M.L., GUMPF, D.J. THE UC RIVERSIDE CITRUS VARIETY COLLECTION, CORNERSTONE OF THE CALIFORNIA CITRUS GENETIC RESOURCES CONSERVATION AND UTILIZATION SYSTEM. INTERNATIONAL SOCIETY OF CITRICULTURE ABSTRACTS. 2000.
Assessing the Genetic Diversity of Citrus by Utilizing Molecular Markers - (Abstract Only)
BARKLEY, N., ROOSE, M., KRUEGER, R. ASSESSING THE GENETIC DIVERSITY OF CITRUS BY UTILIZING MOLECULAR MARKERS. INTERNATIONAL SOCIETY OF CITRICULTURE ABSTRACTS. 2000.
Citrus Genetic Resources in California: Analysis and Recommendations for Long-Term Conservation - (Other)
KAHN, T.L., KRUEGER, R., GUMPF, D.J., ROOSE, M.L., ARPAIA, M., BATKIN, T.A., BASH, J.A., BIER, O.J., CLEGG, M.T., COCKERHAM, S.T. CITRUS GENETIC RESOURCES IN CALIFORNIA: ANALYSIS AND RECOMMENDATIONS FOR LONG-TERM CONSERVATION. REPORT OF THE CITRUS GENETIC RESOURCES ASSESSMENT TASK FORCE. 2001.
National Clonal Repository at Riverside, California, Protects and Provides Unique Citrus and Date Palm Collection - (Popular Publication)
KRUEGER, R. NATIONAL CLONAL REPOSITORY AT RIVERSIDE, CALIFORNIA, PROTECTS AND PROVIDES UNIQUE CITRUS AND DATE PALM COLLECTION. DIVERSITY PLANT GENETIC RESOURCES JOURNAL. 1999.
Phylogenic Relationships among Selected Citrus Germplasm Accessions Revealed by Inter-Simple Seqence Repeat (Issr) Markers - (Peer Reviewed Journal)
FANG, D., KRUEGER, R., ROOSE, M.L. PHYLOGENIC RELATIONSHIPS AMONG SELECTED CITRUS GERMPLASM ACCESSIONS REVEALED BY INTER-SIMPLE SEQENCE REPEAT (ISSR) MARKERS. JOURNAL OF AMERICAN SOCIETY OF HORTICULTURAL SCIENCES. 1998.
Citrus Germplasm Characterisation by Phenotype and Moecular Markers - (Proceedings)
GMITTER, F.G., KRUEGER, R., ROOSE, M.L. CITRUS GERMPLASM CHARACTERISATION BY PHENOTYPE AND MOECULAR MARKERS. CITRUS GERMPLASM CONSERVATION WORKSHOP PROCEEDINGS. 1999.
The California Citrus Certification Program - (Proceedings)
Krueger, R. 2000. The california citrus certification program. Society of Citrus Nurserymen, 5th International Congress, pp. 303-305
Fingerprinting Trifoliate Orange Germplasm Accessions with Isozymes, Rflps, and Inter-Simple Sequence Repeat Markers - (Peer Reviewed Journal)
FANG, D., ROOSE, M.L., KRUEGER, R., FEDERICI, C.T. FINGERPRINTING TRIFOLIATE ORANGE GERMPLASM ACCESSIONS WITH ISOZYMES, RFLPS,AND INTER-SIMPLE SEQUENCE REPEAT MARKERS. JOURNAL OF THEORETICAL AND APPLIED GENETICS. 1997.
Date - (Book / Chapter)
KRUEGER, R. DATE. BOOK CHAPTER. 1997.
An Estimation of the Annual Cost to Maintain a Citrus Germplasm Repository - (Proceedings)
KRUEGER, R. AN ESTIMATION OF THE ANNUAL COST TO MAINTAIN A CITRUS GERMPLASM REPOSITORY. INTERNATIONAL SOCIETY OF CITRICULTURE PROCEEDINGS. 1998.
Mystique of the Date Palm Links Old and New Worlds - (Popular Publication)
KRUEGER, R. MYSTIQUE OF THE DATE PALM LINKS OLD AND NEW WORLDS. DIVERSITY PLANT GENETIC RESOURCES JOURNAL. 1995.
ARS News Articles
Last Modified: 12/19/2014