A/Professor Alexie Papanicolaou combines molecular biology and computational science to protect Australia's agricultural systems and natural environments from emerging threats in our changing climate. At the intersection of cutting-edge genomics and environmental challenges, Alexie works as a genome bioinformatician studying species that shape our ecosystems and economy. His research portfolio spans the vibrant Heliconius butterflies of Central America, the notorious cotton bollworm moth Helicoverpa armigera that costs Australian agriculture millions annually, invasive fruit flies threatening our biosecurity, and the iconic eucalyptus trees that define our landscape.

Alexie's central research question drives practical outcomes: how do organisms perceive their changing world and how do they adapt to it? This work sits at the critical junction where biosecurity, climate adaptation, and evolutionary biology meet—addressing challenges that directly impact Australia's food security and biodiversity.

This work addresses questions fundamental to Australia's future:

• Which agricultural pests will emerge as threats? How will native species adapt to climate change?
• What molecular tools can we develop to predict and manage these challenges?

Alexie's research provides the scientific foundation for evidence-based policies protecting both agricultural productivity and biodiversity in an uncertain environmental future.

Alexie joined the Hawkesbury Institute for the Environment in 2015 bringing with him a foundation of international experience spanning CSIRO, the University of Exeter, and PhD research at Germany's prestigious Max Planck Institute for Chemical Ecology and his formative scientifc education at the University of Edinburgh where he worked in the group of Brian Charlesworth under the supervision of Peter Andolfatto (currently University of Toronto) and Doris Bachtrog (currently Berkeley). His career reflects a deliberate progression from fundamental research to mission-directed solutions for real environmental challenges.

Alexie's work today operates across three key areas. He leads evolutionary genomics investigations that reveal how species respond to environmental pressures. His genomic and geospatial data analysis uncovers patterns invisible to traditional approaches. Meanwhile, his software engineering develops new bioinformatics tools that accelerate discovery across the scientific community.

His contributions to international genome consortia demonstrate the collaborative nature of modern science. As leader of the i5k working group on Manual Curation, Alexie ensures genomic data meets the highest standards of accuracy. His co-authorship of widely-used platforms including Trinity RNA-Seq and Just Annotate My Genome reflects his commitment to building tools that serve the broader research community.

Current projects centre on gene expression experiments that dissect the molecular mechanisms underlying adaptive traits. By studying how genes switch on and off in response to environmental challenges, Alexie's team identifies the genetic toolkit organisms use to survive and thrive in changing conditions. 

Beyond research, Alexie champions the next generation of scientists through postgraduate education in computer science and bioinformatics. He advocates for community-driven data curation, recognising that scientific progress increasingly depends on collaborative approaches to managing and interpreting vast genomic datasets.