Andrew E. Allen is a professor in the Microbial and Environmental Genomics Department. His research focus is related to genome biology, and comparative and functional genomics of eukaryotic marine phytoplankton. Other areas of interest include molecular microbial ecology and metagenomics of eukaryotic marine microbes and bacteria, molecular and genome evolution, chemical and biological oceanography, microbial metabolism, and bioinformatics. Primary areas of interest are based on understanding the molecular basis of carbon (C), nitrogen (N), and iron (Fe) assimilation and metabolism in marine phytoplankton populations as well as the evolution and ecological relevance of molecular and regulatory and signaling/sensing mechanisms that mediate acclimation responses to nutrient and abiotic stress and control biotic interactions. Various ongoing physiological and functional genomics based wet-lab, computational, metagenomic, and metatranscriptomic research projects are centered on addressing hypotheses related to controls on the diversity and activity of marine microorganisms.

Prior to joining JCVI, Dr. Allen was a postdoctoral fellow at the École Normale Supérieure in Paris, France and at Princeton University in the labs of Chris Bowler and Bess Ward where he worked on phytoplankton genomics. He received his PhD in Ecology from the University of Georgia under the direction of Marc Frischer and Peter Verity where he studied the molecular basis of nitrogen assimilation in marine bacteria. Dr. Allen earned his bachelor's degree in Biology and English from Vassar College.

Ariel Rabines
Research Associate III
Anne Schulberg
Laboratory Assistant
Hong Zheng, MS
Research Associate IV
Diatoms Have Found a Way to Pirate Bacterial Iron Sources
Domoic Acid Decoded: Scientists Discover Genetic Basis for How Harmful Algal Blooms Become Toxic
12-Sep-2025
Press Release

Unveiling the secrets of an adaptable, ubiquitous ocean algae

Its DNA gives it broad range and critical importance in the current and future health of our oceans

19-Sep-2024
Press Release

Scientists discover molecular predictors of toxic algal blooms that pose health risk, ecological and economic harm

Genes in the algae Pseudo-nitzschia genus have been identified that act as a warning beacon for a dangerous neurotoxin

21-May-2024
Collaborator Release

Phytoplankton Genetically Sequenced at Sea for the First Time

Viking’s Initiative with UC San Diego’s Scripps Institution of Oceanography and J. Craig Venter Institute Aims to Provide Better Understanding of the “World’s Lungs”

10-Nov-2023
Press Release

Coastal upwelling regions threatened by increased ocean acidification

Increased acidification shown to limit iron availability, a critical element for the survival of phytoplankton, the foundation of the oceanic food web

04-May-2022
Collaborator Release

Scientists announce comprehensive regional diagnostic of microbial ocean life using DNA testing

Large-scale ‘metabarcoding’ methods could revolutionize how society understands forces that drive seafood supply, planet’s ability to remove greenhouse gases

26-Jul-2021
Press Release

Climate change and iron availability may drastically alter algae blooms in the Southern Ocean, trapping vast nutrients

Shifts in diatom population may have profound effects on global nutrient distribution and carbon cycling

18-Mar-2021
Press Release

Scientists map how iron, a critical mineral for survival, is processed by algae, a cornerstone of the ocean food web

Nearly forty proteins identified in the intracellular process, helping to build a conceptual overview of how iron is allocated within diatom cells

27-Sep-2018
Press Release

Domoic Acid Decoded: Scientists Discover Genetic Basis for How Harmful Algal Blooms Become Toxic

Research into gene function in microalgae helps determine how toxins are made in oceanic harmful algal blooms

16-Jul-2018
Media Advisory

Research Schooner Tara in San Diego Calls for Innovative Citizen Science and Oceanography 2.0

For in-depth evaluation of ocean health, biodiversity, and evolution