Seed Biotechnology Center
Seed Biotechnology Center
Seed Biotechnology Center
University of California
Seed Biotechnology Center

Scientific Publications

Peer-reviewed journal articles




Huo, H., Wei, S. and Bradford, K.J. (2016) DELAY OF GERMINATION1 (DOG1) regulates both seed dormancy and flowering time through microRNA pathways. PNAS 10.1073

Berman J, Zhu C, Pérez-Massot E, Arjó G, Zorrilla-López U, Masip G, Banakar R, Sanahuja G, Farré G, Miralpeix B, Bai C, Vamvaka E, Sabalza M, Twyman R, Bassié L, Capell T, Christou P (2013) Can the world afford to ignore biotechnology solutions that address food insecurity? Plant Molecular Biology 83: 5-19

Bewley, J.D., Bradford, K.J., Hilhorst, H.W.M., and Nonogaki, H. 2013. Seeds: Physiology of Development, Germination and Dormancy (2013). Third Edition. (New York: Springer).

Paterson, A. H., …Ashrafi, H., Van Deynze, A., et al. 2012. Repeated polyploidization of Gossypium genomes and the evolution of spinnable cotton fibres.  Nature 492:423-428.

Hill, T.A., Ashrafi, H., Reyes-Chin-Wo, S., Yao, J., Stoffel, K., Trucio, M-J., Kozik., A., Michelmore, R.W. and Van Deynze, A. 2013.Characterization of Capsicum annuum Genetic Diversity and Population Structure Based on Parallel Polymorphism Discovery with a 30K Unigene Pepper GeneChip. PLoS ONE 8:1-16.

Huo, H., Dahal, P., Kunusoth, K., McCallum, C.M. and Bradford, K.J. 2013. Expression of 9-cis-EPOXYCAROTENOID DIOXYGENASE4 Is Essential for Thermoinhibition of Lettuce Seed Germination but Not for Seed Development or Stress Tolerance. Plant Cell.

Paterson, A.H,…Van Deynze, A., et al. 2012. Repeated polyploidization of Gossypium genomes and the evolution of spinnable cotton fibres. Nature 492:423-427

Sim, S.-C., G. Durstewitz, J. Plieske, R. Wieseke, M.W. Ganal, A. Van Deynze, J.P. Hamilton, C.R. Buell, M. Causse, S. Wijeratne, and D.M. Francis. 2012. Development of a Large SNP Genotyping Array and Generation of High-Density Genetic Maps in Tomato. PLoS ONE 7:e40563.

Merk, H.L., Yarnes, S.C., Van Deynze, A., Tong, N., Menda, N., Mueller, L.A., Mutschler, M.A., Lowen, S.A., Myers, J.R. and Francis, D.M. 2012. Trait Diversity and Potential for Selection Indices Based on Variation Among Regionally Adapted Processing Tomato Germplasm. Journal of the American Society for Horticultural Sciences 137(6):427-437.

Boddy, L.G., Bradford, K.J. and Fischer, A.J. 2012. Population-based threshold models describe weed germination and emergence patterns across varying temperature, moisture and oxygen conditions. Journal of Applied Ecology 49:1225-1236.

Hamilton J.P., Sim S.C., Stoffel K., Van Deynze A., Buell C.R. et al. 2012. Single Nucleotide Polymorphism Discovery in Cultivated Tomato via Sequencing by Synthesis. The Plant Genome 5(1):17-29.

Yu, J.Z., Kohel, R.J., Fang, D.D., Cho, J., Van Deynze, A., Ulloa, M., Hoffman, S.M., Pepper, A.E., Stelly, D.E., Jenkins, J.N., Saha, S., Kumpatla, S.P., Shah, W.V. Hugie, M.R. and Percy, R.G. 2012. A High-Density Simple Sequence Repeat and Single Nucleotide Polymorphism Genetic Map of the Tetraploid Cotton Genome. G3: Genes|Genomes|Genetics 2:43-58.

Stoffel, K., van Leeuwen, H., Kozik, A., Caldwell, D., Ashrafi, H. et al. 2012. Development and application of a 6.5 million feature affymetrix genechip(R) for massively parallel discovery of single position polymorphisms in lettuce (Lactuca spp.)BMC Genomics13(1):185.

Argyris, J., Truco, M.J., Ochoa, O., McHale, L., Dahal, P., Van Deynze, A., Michelmore, R.W. and Bradford, K.J. 2011. A gene encoding an abscisic acid biosynthetic enzyme (LsNCED4) collocates with the high temperature germination locus Htg6.1 in lettuce (Lactuca sp.). Theoretical and Applied Genetics. 122:95-108.

Hagler, J.R., Mueller, S., Teuber, L.R., Van Deynze, A. and Martin, J. 2011. A mark-capture method for tracking foraging honey bees originating from multiple apiary locations. Journal of Insect Science 143:1-14.

Hagler, J.R., Mueller, S., Teuber, L.R., Matchley, S.A. and Van Deynze, A. 2011. Honey bee foraging range in alfalfa seed production fields. Journal of Insect Science 144:1-13.

Hamilton, J., Hansey C., Whitty, B.R., Stoffel, K.M., Massa, A.N., Van Deynze, A., De Jong, W., Douches, D.S. and Buell, C.R. 2011. Single nucleotide polymorphism discovery in elite North American potato germplasm: BMC Genomics 12:302.

Iorizzo, M., Senalik, D., Grzebelus, D., Bowman, M., Cavagnaro, P.F., Matvienko, M., Ashrafi, H., Van Deynze, A. and Simon, P.S. 2011.De novo assembly and characterization of the carrot transcriptome reveals novel genes, new markers, and genetic diversity. BMC Genomics12:389.

Pluskota, W.E., Bradford, K.J. and Nonogaki H. 2011. Tissue printing methods for localization of RNA and proteins that control seed dormancy and germination. In A.R. Kermode ed, Seed Dormancy: Methods and Protocols, Methods in Molecular Biology. 773:329-339.

Rivero, R.M., Gimeno, J., Van Deynze, A.E., Walia, H. and Blumwald, E. 2011. Enhanced cytokinin synthesis in tobacco plants expressing PSARK::IPT prevents the degradation of photosynthetic protein complexes during drought. Plant Cell Physiology 51:1929-41.

Robbins, M.D., Sim, S.C., Yang, W., Van Deynze, A., van der Knaap, E., Joobeur, T. and Francis, D.E. 2011. Mapping and linkage disequilibrium analysis with a genome-wide collection of SNPs that detect polymorphism in cultivated tomato. Journal of Experimental Botony 62:1831-45.

Schwember, A.R. and Bradford, K.J. 2011. Oxygen interacts with priming, moisture content and temperature to affect the longevity of lettuce and onion seeds. Seed Science Research 21:175-185.

Sim, S.C., Robbins, M.D., Van Deynze, A., Michel, A.P. and Francis, D.M. 2011. Population structure and genetic differentiation associated with breeding history and selection in tomato (Solanum lycopersicum L.). Heredity 106:927-35.

Van Deynze, A.E., Hutmacher, R.E. and Bradford, K.J.2011. Gene flow between Gossypium hirsutum and G. barbadense is asymmetric. Crop Science 51:298-305.

J.P., Hansey, C. N., Whitty, B. R., Stoffel, K., Massa, A. N., Van Deynze, A., De Jong, W. S., Douches, D. S. and Buell, C. R. 2011. Single nucleotide polymorphism discovery in elite north american potato germplasm. BMC Genomics 12:302

Schwember, A.R., and Bradford, K.J. 2011. Oxygen interacts with priming, moisture content and temperature to affect the longevity of lettuce and onion seeds. Seed Science Research 21: 175-185.

Repinski, S.L., Hayes, K.N., Miller, J.K., Trexler, C.J., Bliss, F.A. 2011. Plant Breeding Graduate Education: Opinions about Critical Knowledge, Experience and Skill Requirements from Public and Private Stakeholders Worldwide. Crop Science51, 2325-36.

Miller, J.K., Repinski, S.L., Hayes, K.N., Bliss, F.A., Trexler, C.J. 2011. Designing Graduate-Level Plant Breeding Curriculum: A Delphi Study of Private Sector Stakeholder Opinion. Journal of Natural Resources & Life Science Education. 40, 82-90.

Bradford, K.J. & Harada, J.J. 2010. Special Issue: Translational Seed Biology: From Model Systems to Crop Improvement. Plant Science 179:6

Miller, J.K., Herman, E.M., Jahn, M. & Bradford, K.J. 2010. Strategic research, education and policy goals for seed science and crop improvement. Plant Science 179:645-652.

Miller, J.K. & Bradford, K.J. 2010. The regulatory bottleneck for biotech specialty crops. Nature Biotechnology 28: 1012-1014.

Schwember, A.R. & Bradford, K.J. 2010. A genetic locus and gene expression patterns associated with the priming effect on lettuce seed germination at elevated temperatures. Plant Molecular Biology 73: 105-118.

Schwember, A.R. and Bradford, K.J. 2010. Quantitative trait loci associated with longevity of lettuce seeds under conventional and controlled deterioration storage conditions. J. Exp. Bot.: 61: 4423-4436.

Van Deynze, A.E., Stoffel, K., Lee, M., Wilkins, T. A., Kozik, A., Cantrell, R., Yu, J. Z., Kohel, R. J., and Stelly, D. M. 2009. Sampling nucleotide diversity in cotton. BMC Plant Biology 9:125.

Van Deynze, A.E., Fitzpatrick, S., Hammon, R., McCaslin, M.H., Putnam, D.H., Teuber, L.R., and Undersander, D.J. 2008. Gene Flow in Alfalfa: Biology, Mitigation, and Potential Impact on Production. Council for Agricultural Science and Technology. 
         See Alfalfa Gene Flow in Alfalfa – CAST Press Release

Chen, Z.J., ... Van Deynze, A.E., et al. 2007. Toward sequencing cotton (Gossypium) genomes. Plant Physiology 145: 1303-1310.

Gealy, D. 2007. Implications of Gene Flow in the Scale-up and Commercial Use of Biotechnology-derived Crops: Economic and Policy Considerations. Council for Agricultural Science and Technology.

Van Deynze, A.E., Douches, D., De Jong, W., and Francis, D. 2007. Summary of Solanaceae Coordinating Meetings. In ISHS Acta Horticulturae 745. VI International Solanaceae Conference: Genomics Meets Biodiversity.

Van Deynze, A.E., Stoffel, K., Buell, R.C., Kozik, A., Liu, J., van der Knaap, E., and Francis, D. 2007. Diversity in conserved genes in tomato. BMC Genomics 8: 465

Van Deynze, A.E. and Stoffel, K. 2006. High throughput DNA extraction from seeds. Seed Science and Technology 34, 741-745.
         For more information go to: Problem Solving

Bradford, K.J., Van Deynze, A.E., Gutterson, N., Parrott, W., Strauss, S. 2005. Regulating transgenic crops sensibly: lessons from plant breeding, biotechnology and genomics Nature Biotechnology 23: 439-444.
       Letters: Wilson, A., Shubert, D. et al. 2005. Nature Biotechnology.
       Response: Bradford, K.J., 2005. Nature Biotechnology.

Van Deynze, A.E.. Sundstrom, F.J. and Bradford K.J. 2005. Pollen-Mediated Gene Flow in California Cotton Depends on Pollinator Activity. Crop Science, Volume 45, 1567-1570.

Workshop on Biotechnology for Horticultural Crops. 2004. California Agriculture. California Agriculture: April 2004 (Vol. 58, No. 2)

Bradford, K.J. and Alston, J.M. 2004. Horticultural Biotechnology: Challenges for Commercial Development. Chronica Horticulturea: A Publication of the International Society for Horticulture Science. 44:4-8.

Extension & Outreach Publications

Agricultural Biotechnology in California (ABC) Series. This is a series of outreach publications on a variety of topics of including co-existance and agricultural biotechnologies.

Bradford, K. J. 2006. Methods to Maintain Genetic Purity of Seed Stocks.  Agricultural Biotechnology in California Series. Publication 8189.

Van Deynze, A., Bradford, K., and Eenennaam, A. 2004. Crop Biotechnology- Feeds for Livestock.  Agricultural Biotechnology in California Series. Publication 8145. Supplemental information.

Van Deynze, A., Putnam, D., Orloff, S., Lanini, T., Canevari, M., Vargas, R., Hembree, K., Mueller, S., and  Tueber, L. 2004. Roundup Ready Alfalfa: An Emerging Technology. Agricultural Biotechnology in California Series. Publication 8153.  

Sundstrom, F.J., Williams, J., Van Deynze, A., and Bradford, K. 2002. Identity Preservation of Agricultural Commodities. Agricultural Biotechnology in California Series. Publication 8077.

Suslow, T., Thomas, B., and Bradford, K. 2002. Biotechnology Provides New Tools for Plant Breeding. Agricultural Biotechnology in California Series. Publication 8043.

Thomas, B., Van Deynze, A., and Bradford, K. 2002. Production of Therapeutic Proteins in Plants. Agricultural Biotechnology in California Series. Publication 8078.

Voss, R., Murray, M., Bradford, K., Maryberry, K., and Miller, I. 1999. Onion Seed Production in California. Agricultural Biotechnology in California Series. Publication 8008.

Murray, M., Hartz, T., and Bradford, K. 1997. Cucurbit Seed Production in California.


The Science of Gene Flow (PDF) in Agriculture and its Role in Co-existence Proceedings, 2011.

SBC - 10 years of service, education and research 1999-2009 (PDF). 2009.

100 Years of Breeding (PDF). 2008.

Van Deynze, A.E., Martins, J., Bradford, K.J., 2007. An Analysis of Transgenic Field Trials in the United States. Seed Biotechnology Center. See Trial Slides for additional information.

Essays & Editorials

Fraser, R.L. 2010. Changes in Academic Seed Research. Growing Magazine.

Tennison, R.I. September 2010. A Dying Breed. Seed World.

Tennison, R.I. September 2010. A Career with a Growing Future. Seed World.

Van Deyze, A. December 2009. Plant Breeding Education is a Group Effort. Seed World

Drotleff, L. 2007. Cultivating New Breeders. Greenhouse Grower Magazine.

Fehr, S. An Endangered Species Germination Magazine - A special edition for the International Seed Federation. Also published in the May 2006 edition and in the Seed World June 2007 issue.

Van Deynze, A.E. 2006. Seed Biotechnology Center provides input on international biotechnology regulations. SeedQuest.

Van Deynze, A.E, and Bradford, K.J. 2006. Academic training of plant breeders no longer meets demand. Seed World 144: 20-21.

Bradford, K.J. June 2005. Biotech Seed Traceability & Labeling: Hindrance or Asset to Marketing & Trade? Seed World 16-22.


Comments for consideration and review of biotech regulatory system, by Kent Bradford

USDA Biotech Regulatory Services Docket No. APHIS-2007-2044- comments supporting the deregulation of Round-up Ready Alfalfa


Bradford, K.J. (2010) Review of Genetically Modified Plants: Assessing Safety and Managing Risk by G.T.Tzotzos, G.P.Head, R.Hull, Field Crops Research 118: 36-307.

Bradford, K.J. and Nonogaki, H. ed. 2007. Seed Development, Dormancy and Germination. Blackwell Scientific Publishers, Oxford, UK.


Webmaster Email: