The underlying theme of my research is to further the understanding of phenotypic variation and its impact on ecological, environmental and evolutionary performance.  This research has had two different focuses: one examines the effects of anthropogenic stressors in natural populations and the second explores evolutionary genomics.  This research uses transcriptome ananlyses to quantify gene expression and relates the variation in gene expression to development, physiology and environmental stress. My laboratory combines these quantitative measures with high resolution Population Genomics to discern changes most likely evolving by natural selection. This research seeks to enhances our understanding of the genetics creating adaptive phenotypic differences and, importantly, adds a stronger quantitative and statistical analysis to evolutionary biology.

My academic interests are to understand the basic properties of adaptation (e.g., the importance of standing genetic variation, are many of loci involved in adaptation, are there conserved pathways to resolve specific selective pressures, etc.).  Knowing this information provides insights into human health and diseases and how organisms will respond to global climate change.  Two important aspects of studying adaptation include research and teaching.  Both are valuable, and both require time and intellectual investment. 


Xiao Du

Ph.D Candidate, Marine Biology and Ecology.


I am interested in examining the effects of chronic anthropogenic pollution on the oxidative phosphorylation pathway (OxPhos) function and gene expression in hepatocytes.

Tara Z. Baris

Ph.D Candidate, Marine Biology and Ecology.


I am interested in understanding the evolution of the oxidative phosphorylation (OxPhos) pathway in the mitochondria. 

Dominique Neitzel Wagner

Ph.D Candidate, Marine Biology and Ecology.


I am interested in the effects of a variable environments on the variation in gene expression in Fundulus heteroclitus. 


Tammy LaBerge, Ph.D.

Visiting Scientist

Alumna - Class of 2007


I am currently investigating the effects of hypoxia on genome wide genetic variation in the teleost fish Fundulus heteroclitus.

Rocio Perez Portela, Ph.D.

Post-Doctoral Scientist


I am intersted in a variety of topics such as: Conservation genetics and connectivity, Applying Next Generation Sequencing (NGS) to assess the effect of human impacts on marine species, Genetics of introduced species, Taxonomy, systematics, cryptic speciation and phylogeny of marine invertebrate, among others. My current projects investigates population genomics in coral reefs- adaptation of corals to deep waters


Keenan Berry 

Sc.B. Student of Marine Science and Biology.



Rachel Weinstein

Sc.B. Student of Marine Science and Biology.


Ryan Gober 

Sc.B. Student of Marine Science and Biology.



Kurt Staz-Gery

Sc.B. Student of Marine Science and Biology.



Kathryn Erceg

Sc.B. Student of Marine Science and Biology.



LAB ALUMNI - Laboratory of Marine Genomics at the University of Miami

Principal Investigators: Dr. Marjorie Oleksiak & Dr. Douglas Crawford

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Updated: 2016