Research Focus
My work integrates microbiome ecology, host–microbe interactions, and environmental genomics to understand how microbial communities shape and respond to ecological and evolutionary processes.
🌿 Land use shapes bacterial communities in streams and riparian zones
J. Sadeghi, S. Nolan, P. Voyer, et al.
PLOS One (2026)
→ Examines how environmental gradients influence microbial community composition.
🧬Gut microbiome and gene transcription interactions in Chinook salmon
J. Sadeghi, F. Zaib, D.D. Heath
Heredity (2024)
→ Reveals links between host genetic architecture and microbiome-driven gene expression.
🌊 Aquatic bacterial community connectivity and hydrological flow
J. Sadeghi, C.J. Venney, S. Wright, et al.
Environments (2024)
→ Shows how hydrological processes shape microbial diversity and connectivity across ecosystems.
🧬 Regulation of host gene expression by gastrointestinal microbiota in Chinook salmon
J. Sadeghi, S.R. Chaganti, D.D. Heath
Molecular Ecology (2023)
→ Demonstrates how gut microbiota influence host gene expression, linking microbial composition to host regulatory processes.
🐟 Host species and habitat shape fish-associated microbiomes
J. Sadeghi, S.R. Chaganti, T.B. Johnson, D.D. Heath
Microbiome (2023)
→ Demonstrates phylosymbiosis and environmental effects on microbial community structure.
🌊 Functional gene transcription in freshwater lake metatranscriptomes
J. Sadeghi, A.H. Shahraki, S.R. Chaganti, D.D. Heath
Environmental Research (2023)
→ Links microbial gene expression to ecosystem function and environmental change.
🌍 Abiotic and microbial drivers of freshwater bacterial communities
J. Sadeghi, S.R. Chaganti, A.H. Shahraki, D.D. Heath
Science of the Total Environment (2021)
→ Identifies environmental and microbial factors shaping aquatic bacterial communities.