Ph.D. Candidate · Carnegie Mellon University

Rajee Ganesan

Computational Biology, Comparative Genomics & Neuroscience  ·  Pittsburgh, PA

I'm a fifth-year Ph.D. candidate in the Pfenning Neurogenomics Lab at Carnegie Mellon University. My research focuses on the molecular and genomic basis of vocal learning and social behaviors — using comparative genomics, machine learning, and epigenomics to understand how enhancer evolution drives the convergent emergence of these complex traits across vertebrates.

I also have extensive experience in science education and teaching. When I'm not in the lab, I'm probably watching baseball, hiking, or listening to music.

Selected Research Projects

Enhancer evolution and the convergent emergence of vocal learning

2022 – Present

Pfenning Neurogenomics Lab, CMU Department of Biological Sciences

Vocal learning — the ability to imitate sounds through social exposure — has evolved independently in multiple vertebrate lineages, each developing a specialized forebrain sensorimotor circuit. Using machine learning, comparative genomics, and ATAC-seq data across 280+ vertebrate genomes, I identify and characterize enhancers whose activity patterns are uniquely conserved in vocal learners, linking genetic sequence variation to circuit-level neural function and behavior.

Cis-regulatory synteny conservation across the Vertebrate Genomes Project

2023 – Present

Pfenning Lab / VGP Consortium

As part of the Vertebrate Genomes Project consortium, I developed pipelines to assess enhancer–gene synteny conservation across ~577 vertebrate genomes using HAL-format liftover and large-scale SLURM HPC workflows. This work characterizes the evolutionary retention of regulatory architecture across vertebrate lineages, with a focus on interneuron-associated enhancers in the motor cortex.

Genetic risk architecture of Crohn's disease

2019 – 2022

Furey Lab, UNC Department of Medicine

Applied allelic imbalance analysis and statistical modeling to ATAC-seq data from patient colonic tissue to identify sites of differential chromatin accessibility linked to Crohn's disease risk loci. Identified 2,000+ sites of allelic imbalance, with 8 overlapping established GWAS loci including NOD2 and DNMT3A. Work completed as Honors Thesis; published in Nature Communications.

Selected Publications

Published

Under Review & In Preparation

Teaching Experience

Mentorship

Mentorship has been a consistent thread across my research training. I've worked closely with students at the undergraduate, Master's, and doctoral levels, guiding independent projects, providing technical training in computational biology, and supporting scientific writing and presentation. My approach is grounded in the same framework I bring to teaching: moving students from structured exposure to independent application to articulation of their own ideas. I am less interested in producing students who can execute a workflow than in developing researchers who understand why a given approach exists, when it is appropriate, and where it breaks down. All six students I've formally mentored have gone on to PhD or MD programs, including one thesis recognized with the Best Honors Thesis award in the CMU School of Computer Science. For more about my approach to teaching and learning, see my teaching philosophy.

Recognitions

Awards

Best Poster — CMU Department of Computational Biology Retreat 2026
Travel Conference Award — CMU Mellon College of Sciences 2026
Margaret Carver Award — CMU Department of Biology 2025
Exemplary Teaching Assistant — NIH/FAES 2025
Carolina Research Scholar — UNC Chapel Hill 2019–2022

Selected Presentations

Talk
Specialized enhancer activity associated with convergent evolution of vocal learning
Evolution Conference, Cleveland, OH  ·  June 2026
Talk
Specialized enhancer activity associated with convergent evolution of vocal learning
Genes Brain and Behavior Conference, Pittsburgh, PA  ·  June 2026
Poster
Specialized enhancer activity associated with convergent evolution of vocal learning
Society for Neuroscience, San Diego, CA  ·  October 2025
Poster
Specialized enhancer activity associated with convergent evolution of vocal learning
Vertebrate Genome Conference, New York City, NY  ·  October 2025

Leadership & Communication

Science Columnist & Opinion Editor — UNC Daily Tar Heel 2019–2022
Data Analyst — UNC Division I Baseball 2019–2020
Research Ambassador & Mentor — UNC Office of Undergraduate Research 2021–2022