People
Megan Martik
Assistant Professor
Megan received her B.S. in Biological Sciences at Carnegie Mellon University in Pittsburgh, PA. As an undergrad, Megan became interested in gene regulation and evolutionary developmental biology in the lab of Dr. Veronica Hinman. She then completed her PhD under the mentorship of Dr. Dave McClay at Duke University where she studied the transcriptional control of morphogenetic processes. After her PhD work, Megan began studying gene regulatory network control of neural crest development and evolution at Caltech in Dr. Marianne Bronner's lab. Megan is fascinated by the regulatory logic dictating complex processes such as cell differentiation, evolution, and regeneration. In her spare time, she likes to travel, SCUBA dive, spend time with family and friends, and hang with her dog, Little Edie.
Email: martik [at] berkeley [dot] edu
Twitter: @MeganMartikPhD
Lara Busby
Postdoctoral Researcher
Lara received her B.A. in Natural Sciences (2017), and PhD in Developmental Biology (2023) from the University of Cambridge (UK). Her PhD work focused on the regulation of developmental timing, using experimental embryology to test the contribution of intrinsic and extrinsic timers to Hox gene expression and cell migration in primary body axis development. In the Martik lab, she is using a zoo of animal models to understand the evolution and development of ectomesenchymal identity acquisition in the cranial neural crest. Outside of the lab, Lara enjoys cooking, birdwatching and exploring the bay!
Brad Hansen
Postdoctoral Researcher
Brad received his B.S. in Environmental Sciences (2016) from the University of Vermont, and PhD in Toxicology (2025) from the University of Washington. His PhD research focused on the postnatal development of the testis and how intercellular signaling defines the spermatogonial niche. In the Martik lab, Brad will research the role of neural crest-derived cells during cardiac development and regeneration using organoids and zebrafish and broadly investigate how fate decisions are controlled to make regeneration possible. Outside of the lab, Brad is an avid backpacker/flyfisher and is excited to explore the Bay Area.
Alex Haugan
Graduate Student
Alex received her B.S in cell and developmental biology from the University of Washington in Seattle, Washington. As an undergraduate Alex became passionate about the processes of development and regeneration through the studies of both glial reprogramming in the retina and human stem cell-derived organoids in Dr. Tom Reh's laboratory. Now as a graduate student in the Martik Lab, Alex studies cardiac regeneration and the unique contribution of neural crest cells to this process. Alex is passionate about scientific mentorship, equity and justice in science, and transgender rights. Outside of lab Alex loves to bake, travel, and talk all things television and books.
Xylina Rusit
Graduate Student
Xylina graduated from UC Davis in 2019 with a B.S. in Biochemistry and Molecular Biology and a minor in Evolutionary Anthropology. Wanting to combine her scientific passions, she sought to ask evolutionary questions in the context of molecular biology. In the Martik Lab, she now studies the evolution and development of the cardiac neural crest with the assistance of the mighty sea lamprey (Petromyzon marinus), a basal vertebrate, and the elegant and divergently evolved Mexican cavefish (Astyanax mexicanus). You may encounter a wild Xylina getting boba/coffee or thrifting around downtown Berkeley.
Simon Chau
Graduate Student
Simon graduated from California State University, Long Beach with a B.S. in Molecular Cell Biology and Physiology and a minor in Chemistry. At CSULB he investigated the role of hypoxia during photostimulated ovarian regression in Siberian hamsters with Dr. Kelly Young. The cycle of regression and regeneration in seasonally reproducing species served as his first step into the scientific realm of development and regeneration. In the Martik lab, Simon studies cardiac regeneration and the role that neural crest cells and intercellular signals play in this phenomenon. Simon enjoys embarking upon culinary adventures, science fiction and fantasy games/books, and the feeling after a run when it's all over.
Vincent Pham
Graduate Student
Vincent holds a B.S. in Neuroscience from Brown and an M.S. in Biology from Tufts. He is
interested in the use of self-organizing organoids to recapitulate developmental events unique
to humans and to model complex tissue architecture. His early research experiences focused on
regulators of cell death and proliferation (Bowen lab, Brown) and on cytoskeletal proteins that
direct changes in cell structure and function (Sever lab, MGH). Following these experiences, he
shifted focus from general cell processes to neurodevelopment. In the lab of Mriganka Sur
(MIT), he used cerebral organoids and iPSCs/ESCs to look at deficits in the migration of
immature neurons and the abnormal expansion of neural progenitors in Rett Syndrome. He
then moved to Vienna, Austria to continue his cerebral organoid work as a Fulbright scholar in
the lab of Juergen Knoblich (IMBA). There, he studied the development of the corpus callosum
and as well as the polarization of the neuroepithelium in early brain development. Currently, as
a co-advised graduate student in the Martik lab and the Hockemeyer lab, he is modeling the
contribution of neural crest cells to heart development and their response to heart injury in
cardioids (heart organoids).
Rekha Dhillon-Richardson
Graduate Student
Rekha received her B.S. in Biochemistry from Brown University in 2021. At Brown, her undergraduate lab work in the Plavicki laboratory focused on studying the impact of the ubiquitous environmental toxicant, PFOS, on neurodevelopment and immune response to brain injury in embryonic zebrafish. In July 2021, she began the next stage of her scientific career at the University of California, Berkeley, as a post-baccalaureate researcher in Dr. Megan Martik’s laboratory. Now as a graduate student in the Martik lab, Rekha is excited to continue her research working to uncover the gene regulatory networks controlling the differentiation of the cardiac neural crest into specialized cardiac derivatives. Outside of the lab, Rekha enjoys going on hikes with her dog Penny, spending time with friends, and doing crafts.
Dorra Jedoui
Graduate Student
Dorra received a B.S. in Biology and an M.S. in Computer Science from Stanford University. During her time at Stanford, her research focused on using single-cell studies to investigate the developmental biology of pediatric B-cell Acute Lymphoblastic Leukemia to inform patient outcomes with Dr. Kara Davis. In the Martik lab, Dorra is studying the regulatory networks governing the differentiation of the neural crest into the sympathetic nervous system. She is using the knowledge of the normal process of development to understand tumorigenesis in the context of neuroblastoma. Outside of the lab, Dorra enjoys going on walks, baking and studying sufism.
Hannah Van Mullem
Lab Technician
Hannah received her B.A. in Molecular and Cell Biology from the University of California, Berkeley in 2023. She is continuing research started during her Honors Thesis project, working on understanding the evolution of axial regionalization and regulatory complexification of the neural crest across vertebrates, including the humble sea lamprey. She hopes to continue studying genetics and development in graduate school, after her time in the Martik Lab. In her free time, she enjoys reading fantasy and science fiction novels, cooking, and buying yet another houseplant.
Luke Lyons
Lab Technician
Luke received his B.A in Molecular and Cell Biology and English from UC Berkeley in 2023. He became interested in heart regeneration and neural crest development as an undergraduate researcher in the Martik lab, completing an honors thesis on the contribution of neural crest-derived cardiomyocytes during cardiac regeneration. As a lab tech, Luke continues to investigate neural crest-derived cells during heart regeneration as well as the gene regulatory landscape dictating the differentiation of the sympathetic nervous system. Outside of lab, Luke enjoys spending time with friends, listening to music, and going to bookstores and cafes.
David John Lin
Undergraduate
David is an undergraduate at UC Berkeley, majoring in Molecular and Cell Biology. In the Martik Lab, he is exploring molecular and gene regulatory networks involved in the evolution of axial gene regulation in the sea lamprey neural crest. He is fascinated by developmental biology and the interplay between morphological adaptation and disease, hoping to apply this experience in his future as a physician. In his free time, he enjoys adventuring outdoors, playing piano and guitar, and spending intentional time with his community.
Colin Rushing
Undergraduate
Manahil Rehman
Undergraduate
Manahil is an undergraduate at UC Berkeley, majoring in Bioengineering. In the Martik Lab, she is exploring gene regulatory networks responsible for the identity and differentiation of cardiac neural crest cells. She hopes to continue researching cardiac development through an MD/PhD following her undergraduate studies. Outside of the lab, she enjoys hiking, running, and trying new food spots.
Aidan Turng
Undergraduate
Little Edie
Our least productive lab member
You?!
The Martik lab is an inclusive, supportive group and is actively recruiting motivated, curious, and creative scientists at all levels. Please reach out if you're interested in joining the team!