Barton Lab


Current lab members


Dr. Nidhi Sharma, Ph.D.

nidhis at carnegiescience dot edu

Nidhi received her Ph.D. from the University of Texas in Austin. 

Nidhi is currently working on understanding the early events in the establishment of the leaf primordium.  In particular she would like to understand how KNOX gene expression is extinguished in the young leaf primordium.





Dr. Tie Liu, Ph.D.

tieliu at carnegiescience dot edu

Tie received his Ph.D. from Yale University.

Tie is working to define and understand the ad/abaxial regulatory network in Arabidopsis.  He has identified transcription factors that act downstream of the HD-ZIPIII and KANADI master regulators.  These "middlemen" transcription factors appear to control subprograms of ad/abaxial development.  Tie is especially interested in those that are responsible for establishing the shoot apical meristem at the apical pole of the embryo.  His work has also shed light on factors downstream of both drought signaling and the ad/abaxial regulatory network.  These factors are potential players in a novel ABA signaling pathway used in vegetative tissues.



Dr. Sam Hokin, Ph.D.

hokin at carnegiescience dot edu

Sam received his Ph.D. in Physics from MIT.

Sam works on modeling transcription factor regulatory networks.  Sam also is responsible for analyzing high throughput sequence data to define additional components of the ad/abaxial regulatory network.






Franklin Talavera-Rauh

ftalaver at carnegiescience dot edu

Franklin received his B.S. from the University of California at Santa Barbara.

Franklin is working to understand the connection between SHOOT MERISTEMLESS - a transcription factor that is required for the establishment and maintenance of new shoot apical meristems in the plant - and genes involved in stress responses.






Adam Longhurst

adam12 at carnegiescience dot edu

Adam received his B.S. from the University of California at Santa Cruz.

Adam's work has established a novel vegetative pathway through which ABA regulates growth.  Targeting this pathway may yield new drought resistant genes.  He has also been head mentor for summer interns.  He will leave shortly to take a position in a yeast genetics lab at UCSF.  We will miss him.







Lance Cabalona

lance dot cabalona at sjsu dot edu

(Also in Evans' lab)

Lance is an undergraduate student in Nutritional and Food Sciences at San Diego State University. 

Lance has assisted research in several areas.  He was a big help to Enrico Magnani when he was in the lab and is a coauthor on a manuscript under review as a result of that work.  Most recently he has undertaken a mutagenesis to identify new ABA resistance genes that act specifically in vegetative stages.  He also assists with maize genetics.




Former lab members


Nicole Newell

Niki is currently a graduate student in the Biomedical Sciences Program at Florida State University.







Graham Newell

Graham is currently a graduate student in Economics at Florida State University.







Dr. Enrico Magnani, Ph.D.

Enrico is currently a research scientist at INRA in Versailles, France where he works on seed development and maturation.







Dr. Brenda Reinhart, Ph.D.

Brenda is currently a staff scientist at UniversitätsSpital Zürich where she works on neuroimmunology and multiple sclerosis.