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Julin N Maloof

Associate Professor

Plant Biology

2131 Life Sciences Addition
(530) 752-8077

(530) 752-8086


1998 PhD University of California, San Francisco Biochemistry
1989 BA Haverford College Biology

Research Interests:

Light is essential for plant growth. Perhaps as a consequence, plants have an intricate set of photoreceptors and responses that they use to optimize their development and physiology to suit their light environment. We study the ways in which plants have evolved differences in their light perception and responses that allow them to thrive in different environments. We are interested in both the genetic and molecular basis of variation in light response as well as the adaptive consequences. A combination of molecular and quantitative genetics is used in Arabidopsis, Tomato, and Brassica

Department and Center Affiliations:

Department of Plant Biology

Professional Societies:

Genetics Society of America
American Society of Plant Biologists

CBS Graduate Group Affiliations:

Plant Biology  

Specialties / Focus:

Model Plants
Plant Breeding

Plant Biology
Cell and Developmental Biology
Molecular Biology, Biochemistry, and Genomics


Last updated 4/12/2012
Maloof, J. N., and Kenyon, C. (1998). The Hox gene lin-39 is required during C. elegans vulval induction to select the outcome of Ras signaling. Development 125, 181-190.

Maloof, J. N., Whangbo, J., Harris, J. M., Jongeward, G. D., and Kenyon, C. (1999). A Wnt signaling pathway controls hox gene expression and neuroblast migration in C. elegans. Development 126, 37-49.

Maloof, J. N., Borevitz, J. O., Weigel, D., and Chory, J. (2000). Natural variation in phytochrome signaling. Semin Cell Dev Biol 11, 523-530.

Maloof, JN, JO Borevitz, T Dabi, J Lutes, RB Nehring, JL Redfern, GT Trainer, JM Wilson, T Asami, CC Berry, D Weigel, J Chory. 2001. Natural variation in light sensitivity of Arabidopsis thaliana. Nature Genetics. 29:441-446

Friedrichsen, D. M., Nemhauser, J., Muramitsu, T., Maloof, J. N., Alonso, J., Ecker, J. R., Furuya, M., and Chory, J. (2002). Three redundant brassinosteroid early response genes encode putative bHLH transcription factors required for normal growth. Genetics 162, 1445-1456.

Borevitz, JO, JN Maloof, J Lutes, T. Davi, JL Redfern, GT Trainer, JD Werner, T Asami, CC Berry, D Weigel, J Chory. 2002. Quantitative trait loci controlling light and hormone response in two accessions of Arabidopsis thaliana. Genetics. 160:683-69

Nordborg, M, JO Borevitz, J Bergelson, CC Berry, J Chory, J Hagenblad, M Kreitman, JN Maloof, T Noyes, PJ Oefner, EA Stahl, D Weigel. 2002. The extent of linkage disequilibrium in Arabidopsis thaliana. Nature Genetics. 30:190-193

Maloof, J. N. (2003). Genomic approaches to analyzing natural variation in Arabidopsis thaliana. Curr Opin Genet Dev 13, 576-582.

Nemhauser, J.L., Maloof, J.N., and Chory, J. (2003). Building integrated models of plant growth and development. Plant Physiol 132, 436-439.

Maloof, J. N. (2003). QTL for plant growth and morphology. Curr Opin Plant Biol 6, 85-90.

Maloof JN (2004) Plant development: slowing root growth naturally. Curr Biol 14: R395-6.

Wolyn DJ, Borevitz JO, Loudet O, Schwartz C, Maloof J, Ecker JR, Berry CC, Chory J (2004). Light-response quantitative trait loci identified with composite interval and eXtreme array mapping in Arabidopsis thaliana. Genetics 167: 907-17.

Lu L, Lee YR, Pan R, Maloof JN, & Liu B (2005) An internal motor kinesin is associated with the Golgi apparatus and plays a role in trichome morphogenesis in Arabidopsis. Mol Biol Cell 16: 811-23.

Maloof JN (2005) Small but not forgotten. Heredity 96: 1-2.

Nozue K, Maloof JN. (2006) Diurnal regulation of plant growth. Plant Cell Environ 29:396-408

Balasubramanian S, Sureshkumar S, Agrawal M, Michael TP, Wessinger C, Maloof JN, Clark R, Warthmann N, Chory J, Weigel D (2006). The PHYTOCHROME C photoreceptor gene mediates natural variation in flowering and growth responses of Arabidopsis thaliana. Nat Genet 38: 711-5.

Weinig C, Johnston JA, Willis CG, Maloof JN. (2007) Antagonistic multilevel selection on size and architecture in variable density settings. Evolution Int J Org Evolution 61:58-67

Nozue K, Covington MF, Duek PD, Lorrain S, Fankhauser C, Harmer SL, Maloof JN. (2007) Rhythmic growth explained by coincidence between internal and external cues. Nature 448:358-61

Filiault DL, Wessinger CA, Dinneny JR, Lutes J, Borevitz JO, Weigel D, Chory J, & Maloof JN (2008). Amino acid polymorphisms in Arabidopsis phytochrome B cause differential responses to light. Proc Natl Acad Sci U S A 105: 3157-62.

Schwartz C, Balasubramanian S, Warthmann N, Michael TP, Lempe J, Sureshkumar S, Kobayashi Y, Maloof JN, Borevitz JO, Chory J, & Weigel D (2009). Cis-regulatory Changes at FLOWERING LOCUS T Mediate Natural Variation in Flowering Responses of Arabidopsis thaliana. Genetics

Jimenez-Gomez JM, & Maloof JN (2009). Sequence diversity in three tomato species: SNPs, markers, and molecular evolution. BMC Plant Biol 9: 85.

Jiménez-Gómez JM, & Maloof JN (2009). Plant research accelerates along the (bio)informatics superhighway: symposium on plant sensing, response and adaptation to the environment. EMBO Rep 10: 568-72.

Balasubramanian S, Schwartz C, Singh A, Warthmann N, Kim MC, Maloof JN, Loudet O, Trainer GT, Dabi T, Borevitz JO, Chory J, & Weigel D (2009). QTL Mapping in New Arabidopsis thaliana Advanced Intercross-Recombinant Inbred Lines. PLoS ONE 4: e4318.

Jiménez-Gómez JM, Wallace AD, and Maloof JN. Network analysis identifies ELF3 as a QTL for the shade avoidance response in Arabidopsis. PLoS Genet 2010 Sep 9; 6(9).

Brock MT, Dechaine JM, Iniguez-Luy FL, Maloof JN, Stinchcombe JR, and Weinig C. Floral Genetic Architecture: An Examination of QTL Architecture Underlying Floral (Co)Variation Across Environments. Genetics 2010 Sep 13.

Brock MT, Maloof JN, and Weinig C. Genes underlying quantitative variation in ecologically important traits: PIF4 (phytochrome interacting factor 4) is associated with variation in internode length, flowering time, and fruit set in Arabidopsis thaliana. Mol Ecol 2010 Mar; 19(6) 1187-99.

Maloof JN. Recent advances in regulation of flowering. F1000 Biol Rep 2010 Feb 11

Kerwin, R. E., Jimenez-Gomez, J. M., Fulop, D., Harmer, S. L., Maloof, J. N. & Kliebenstein, D. J. Network Quantitative Trait Loci Mapping of Circadian Clock Outputs Identifies Metabolic Pathway-to-Clock Linkages in Arabidopsis. Plant Cell 23, 471-485 (2011).

Holtan, H. E., Bandong, S., Marion, C. M., Adam, L., Tiwari, S., Shen, Y., Maloof, J. N., Maszle, D. R., Ohto, M. A., Preuss, S., Meister, R., Petracek, M., Repetti, P. P., Reuber, T. L., Ratcliffe, O. J. & Khanna, R. BBX32, An Arabidopsis B-box Protein, Functions in Light Signaling by Suppressing HY5-Regulated Gene Expression And Interacting with STH2. Plant Physiol (2011).

Chang, C. S., Maloof, J. N. & Wu, S. H. COP1-mediated degradation of BBX22/LZF1 optimizes seedling development in Arabidopsis. Plant Physiol 156, 228-239 (2011).

Nozue, K., Harmer, S. L. & Maloof, J. N. Genomic Analysis of Circadian Clock-, Light-, and Growth-Correlated Genes Reveals PHYTOCHROME-INTERACTING FACTOR5 as a Modulator of Auxin Signaling in Arabidopsis. Plant Physiol 156, 357-372 (2011).

Stewart, J. L., Maloof, J. N. & Nemhauser, J. L. PIF Genes Mediate the Effect of Sucrose on Seedling Growth Dynamics. PLoS One 6, e19894 (2011).

Kim, K., Shin, J., Lee, S. H., Kweon, H. S., Maloof, J. N. & Choi, G. Phytochromes inhibit hypocotyl negative gravitropism by regulating the development of endodermal amyloplasts through phytochrome-interacting factors. Proc Natl Acad Sci U S A 108, 1729-1734 (2011).

Arana, M. V., Marín-de la Rosa, N., Maloof, J. N., Blázquez, M. A. & Alabadí, D. Circadian oscillation of gibberellin signaling in Arabidopsis. Proc Natl Acad Sci U S A 108, 9292-9297 (2011).

Jiménez-Gómez, J. M., Corwin, J. A., Joseph, B., Maloof, J. N., & Kliebenstein, D. J. (2011). Genomic analysis of QTLs and genes altering natural variation in stochastic noise. PLoS Genetics, 7(9), e1002295. doi:10.1371/journal.pgen.1002295

Chitwood, D. H., Headland, L. R., Filiault, D. L., Kumar, R., Jiménez-Gómez, J. M., Schrager, A. V., Park, D. S., et al. (2012). Native Environment Modulates Leaf Size and Response to Simulated Foliar Shade across Wild Tomato Species. PloS one, 7(1), e29570. doi:10.1371/journal.pone.0029570

Chitwood, D. H., Headland, L. R., Kumar, R., Peng, J., Maloof, J. N., & Sinha, N. R. (2012). The developmental trajectory of leaflet morphology in wild tomato species. PLANT PHYSIOLOGY. doi:10.1104/pp.111.192518

Filiault, D. L., & Maloof, J. N. (2012). A Genome-Wide Association Study Identifies Variants Underlying the Arabidopsis thaliana Shade Avoidance Response. PLoS Genetics, 8(3), e1002589. doi:10.1371/journal.pgen.1002589

Seymour, D. K., Filiault, D. L., Henry, I. M., Monson-Miller, J., Ravi, M., Pang, A., Comai, L., et al. (2012). Rapid creation of Arabidopsis doubled haploid lines for quantitative trait locus mapping. Proceedings of the National Academy of Sciences of the United States of America, 109(11), 4227–4232. doi:10.1073/pnas.1117277109

Laboratory Personnel:

Maloof Lab


BIS 002C Introduction to Biology Winter
PBI 220 Plant Developmental Biology (Alternate years) Winter