Logo

Principal Investigator

JL Weissman (they/she)

Assistant Professor, Department of Ecology & Evolution and the Institute for Advanced Computational Science (IACS)

Email: jackie.weissman@stonybrook.edu

Bluesky: @jlw-ecoevo.bsky.social

Google Scholar

CV

Bio: Jackie Lee “JL” Weissman (they/she) is an Assistant Professor at Stony Brook University starting Fall 2024. Her research examines how microbes survive and thrive across diverse environments. She develops new tools to infer what microbes are doing and can do from DNA sequences captured directly from the environment (“metagenomes”), aiming to improve the representation of microbially-mediated biogeochemical cycles in global climate models. She also has a special interest in using a combination of comparative genomics, population genetics, and mathematical models to understand the ancient and ongoing battle between microbes and their viruses. She believes all students, with supportive training and mentorship, can become highly-capable computational biologists, and loves to show students how a little coding can go a long way.

Previously, JL served as the inaugural Director for Proposal Development at the City College of New York, where they managed large, interdisciplinary efforts to bring center-level funding to the college and trained early-career researchers in grantmaking. They maintain research affiliations in biology at CCNY and the University of Southern California and have taught at The Cooper Union School of Art. Before returning to New York, they were faculty at Chapman University, where they ran a computational biology research lab, taught, and developed initiatives to improve mentorship at the college level.

Postdoctoral Researchers

Alexandra Walling (they/them)

Email: alexandra.walling@stonybrook.edu

CV

Bio: Alexandra (they/them) earned their B.S. in Biology at California State University, Monterey Bay before joining the American Museum of Natural History first as a Helen Fellow and then as a PhD student through the Richard Gilder Graduate School. Their research at AMNH has included comparative questions in prokaryotic and viral evolution. Their PhD work used comparative genomic and phylogenetic techniques to untangle how horizontal gene transfer and secondary loss shaped the evolution of photosynthesis in Erythrobacteraceae, a family of Alphaproteobacteria which show a scattered distribution of a gene cluster encoding photosynthesis. Alexandra’s first postdoc at the University of Rhode Island was spent focusing on the problem of how we can filter large genomic datasets to increase signal and reduce noise by developing tools to predict which genomic loci have the most utility for downstream phylogenetic analysis. They used extensive simulations and compared machine learning models for phylogenetic utility determination.

Alexandra is broadly interested in using a wide range of computational tools to answer questions related to microbial evolution and ecology, particularly how horizontal gene transfer among populations of bacteria may drive bacterial evolution in response to biogeochemical cycling. Alexandra also enjoys teaching and mentoring undergraduate and graduate students just starting out in evolutionary and computational biology. When not working, Alexandra enjoys exploring the great outdoors with their former laboratory beagle, Darwin.

Graduate Students

We are recruiting! See the join us page for details.

Undergraduates

Jesse Natarajan (she/her)

Bio: Jesse is a Computer Science major and Biology/Chemistry minor at Stony Brook University. In the lab, she is interested in using and developing computational methods to study genomic data, specifically predicting microbial growth rates using short genomic sequences.


Past Mentees

Chapman University

University of Southern California

University of Maryland College Park