Current Lab Members

Greg Lang

Associate Professor

I was a Ph.D. student with Andrew Murray at Harvard and a post doc with David Botstein at Princeton. I joined the faculty at Lehigh in 2013. My interests comfortably span evolutionary and molecular biology. My lab works mostly on yeast genetics and genomics. Fittingly, I am an instructor for the CSHL Yeast Genetics & Genomics course.
thesis | c.v.

Dimitra Aggeli


During my Ph.D. I studied aspects of the regulation of the actin cytoskeleton in S. cerevisiae in the laboratory of David Amberg at SUNY Upstate Medical University. Before joining the lab, I was a postdoc at Stanford University, where I developed a sequencing-based method for the detection of single nucleotide polymorphisms, under the supervision of Gavin Sherlock and William Greenleaf. I am interested in the allelic interactions during diploid evolution, and the consequences of historical contingency during adaptation.

Han-Ying Jhuang


I’m generally interested in evolutionary biology and biotechnology. During my Ph.D. with Dr. Jun-Yi Leu at Academia Sinica, I studied hybrid nuclear-mitochondrial incompatibilities in yeast. As a postdoc in Dr. Michael Springer’s lab at Harvard, I developed a system for analyzing complex traits from large-scale variant pools. In addition, I studied how the sugar ratio-sensing behavior in yeast is affected by the environment, and I used barcoded yeast to track objects provenance. At Lehigh, I’m enthusiastic in how pathways evolve in related species.

Ryan Vignogna

Graduate Student, Biochemistry

Before joining the Lang lab in 2016, I received my undergraduate degree in Biochemistry and Molecular Biology from DeSales University. I am interested in tackling a central question of evolutionary biology: how reproducible is evolution? My specific interest, and current project, lies in understanding how epistasis shapes evolutionary paths and outcomes.

Artemiza Martinez

Graduate Student, Molecular Biology

I received my Bachelor’s in Biotechnology Engineer from The Autonomous University of Queretaro, Mexico. I conducted my undergraduate dissertation thesis at the International Laboratory for Human Genome Research (LIIGH), which consisted of editing Saccharomycotina yeast genomes utilizing CRISPR-Cas9 for artificially construction of interspecies hybrids. I am passionate about rock climbing; the farther my feet are from the ground the better.

Bobby Schmidt

Graduate Student, Molecular Biology
(joint with Vassie Ware)

I received my Bachelor's in Biological Sciences from Cabrini University in 2017 with a research focus in bacteriophage biology through the SEA-PHAGES program. Before coming to Lehigh, I worked as a lab technician for a medical device company responsible for quality control and environmental testing. I’m interested in understanding the evolution of bacteriophage.

Kaya Harper


Currently, I am an undergraduate student at Lehigh in the college of Arts and Sciences and I am pursuing a degree in Molecular Biology and a minor in Earth and Environmental Science. I learned of Dr. Lang's research from another professor and I find it very interesting. I am looking forward to learning more about yeast evolution and matting pathways. When I am not in the library or Dr. Lang's lab I enjoy spending time outdoors, hiking, and backpacking.

Grace Allen


I am currently in the College of Arts and Sciences at Lehigh University, pursuing a Bachelor's degree in Biology with a minor in Psychology. Post Lehigh I have the hopes of attending Physicians Assistant school. I became a part of the Lang Lab as microbiology is a growing interest of mine. I am excited to gain more hands-on experience in a research lab and intend to further study the mating pathway of yeast. Outside of the lab, I love spending time with my labradoodle Hurley.

Alexis Hampton


I am currently an undergraduate student in the College of Arts and Sciences at Lehigh University, pursing a degree in Biology with a minor in Health, Medicine, and Society. During my time at Lehigh I wanted to take advantage of any and all opportunities that would help influence my future, one of those being research. I found the Lang lab after taking a course centered around genetics and S. cerevisiae. I am always excited to take on new endeavors and challenge myself. Outside of lab, I am very passionate about community service and baking!

Fall 2019
Fall 2018
Fall 2017

Work Study Students

Zhen Lin

Lab Alumni

Sean Buskirk, Postdoc, Currently an Assistant Professor of Biology at West Chester University.
Katie Fisher, Graduate Student, Currently a postdoc in the Hittinger Lab at the Univeristy of Wisconsin, Madison.
Dan Marad, Graduate Student, Currently at Eurofins Lancaster Laboratories.
Ryan Emily Peace, Undergraduate Researcher, Currently a Ph.D. student in Bioengineering at Boston University.
Ali O'Donnell, Undergraduate Researcher
Ken Brill, Undergraduate Researcher, Currently at NYU medical school.
Rebecca Unterborn, Undergraduate Researcher, Currently at Temple medical school.
Jasper Jeffrey, Undergraduate Researcher, Currently a research technician at Rensselaer Polytechnic Institute.
Alecia Rokes, Undergraduate Researcher, Currently a Ph.D. student in Microbiology at Univeristy of Pittsburgh.

Opportunities for Students and Postdocs

We are always looking for talented students and postdocs who are interested in experimental evolution to join the lab. Molecular evolution is by nature interdisciplinary; therefore students from a variety of backgrounds (e.g. evolutionary biology, molecular biology, physics, math, chemistry, computer science, engineering, and systems biology) are all encouraged to apply.
Graduate Students: Graduate students enter the lab through the Graduate Program in the Department of Biological Sciences.
Post Docs: If you are interested in joining the lab, please send an email to describing your research background, along with a current cv, and contact information for three references.
Undergraduate Students: Undergraduates are welcome in the lab. If you are interested please see our work study ad or send an email to