Author

D. A. Walsh

Listed by name: these papers carry no ORCID for this author, so different people with the same name may be mixed together.

Biology Disciplines

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Microbiology· 6 Ecology· 3

Signature Assays, Organisms & Methods

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Assay:metagenomics· 9 Research Focus:ecology & biodiversity· 6 Approach:statistical model· 5 Approach:experimental assay· 4 Research Focus:benchmarking· 2 Research Focus:host-pathogen & immune response· 2 Organism:bacteria (other)· 1 Research Focus:clustering· 1

Frequent Co-Authors

R. Garner· 3 shared S. Kraemer· 3 shared V. E. Onana· 3 shared Y. Huot· 3 shared I. Gregory-Eaves· 2 shared S. A. Kraemer· 2 shared A. Buchan· 1 shared A. G. Bravo· 1 shared

Activity by Year

2019-2023 · peak 4/yr

Co-Author Collaboration Network

10 top collaborators · 15 mutual co-author links

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3 shared papersEcology

R. Garner

Mutual co-authors in cluster

Author profile →

9 papers

Recent·Most cited

Multiplexed Amplicon Sequencing Reveals High Sequence Diversity of Antibiotic Resistance Genes in Quebec Sewers

C. Gibson, S. A. Kraemer, N. Klimova, L. Vanderweyen, N. Klai, E. Diaz Mendoza, B. Guo, D. A. Walsh, D. Frigon

This study uses multiplexed amplicon sequencing to detect sequence variants of antibiotic resistance genes in Quebec sewers, revealing high diversity and varying public health risks.

bioRxiv · Mar 6, 2023 · PreprintMicrobiology

Degradation pathways for organic matter of terrestrial origin are widespread and expressed in Arctic Ocean microbiomes

T. Grevesse, V. E. Onana, C. Gueguen, D. A. Walsh

This study identifies widespread aromatic compound degradation pathways in Arctic Ocean microbiomes, highlighting their role in processing terrestrial organic matter.

bioRxiv · Aug 13, 2022Microbiology

A genome catalogue of lake bacteria across watershed land use gradients at a continental scale

R. Garner, S. Kraemer, V. E. Onana, M. Fradette, M.-P. Varin, Y. Huot, D. A. Walsh

The paper constructs a continental-scale MAG catalogue of lake bacteria, revealing how trophic state and land use influence microbial diversity.

bioRxiv · Aug 12, 2022 · PreprintMicrobiology

Protist diversity and metabolic strategy in freshwater lakes are shaped by trophic state and watershed land use at a continental scale

R. Garner, S. A. Kraemer, V. E. Onana, Y. Huot, I. Gregory-Eaves, D. A. Walsh

This study examines protist diversity in freshwater lakes across Canada, finding that trophic state and watershed land use significantly influence protist communities and diversity.

bioRxiv · Apr 4, 2022Ecology

A consensus protocol for the recovery of mercury methylation genes from metagenomes

E. Capo, B. D. Peterson, M. Kim, D. S. Jones, S. G. Acinas, M. Amyot, S. Bertilsson, E. Bjorn, M. Buck, C. Cosio, D. Elias, C. Gilmour, M. Goni, B. Gu, H. Lin, , C. M. Gionfriddo

The paper presents a standardized protocol and bioinformatic pipeline for detecting and quantifying mercury methylation genes (hgcAB) in metagenomes, showing comparable efficiency between single and co-assembly approaches.

bioRxiv · Mar 14, 2022Microbiology

Comparative analysis of zooplankton diversity in freshwaters: What can we gain from metagenomic analysis?

M.-E. Monchamp, D. A. Walsh, R. Garner, S. Kraemer, B. E. Beisner, M. E. Cristescu, I. Gregory-Eaves

This study assesses zooplankton diversity in freshwater lakes using metagenomics and compares results with morphological data, finding significant correlation but methodological differences.

bioRxiv · Oct 27, 2021Ecology

A metagenomic-based stufy of two sites from the Barbadian reef system

M. T. Hallett, S. Simpson, V. Bettauer, A. Ramachandran, S. Kramer, S. Mahon, M. Medina, Y. Valles, V. Dumeaux, H. Valles, D. A. Walsh

The paper analyzes the microbiome of two Barbadian coral reef sites using metagenomic sequencing to compare microbial community composition in relation to environmental factors.

bioRxiv · Jan 2, 2021Microbiology

Ecology of inorganic sulfur auxiliary metabolism in widespread bacteriophages

K. Kieft, Z. Zhou, R. E. Anderson, A. Buchan, B. J. Campbell, S. Hallam, M. Hess, M. B. Sullivan, D. A. Walsh, S. Roux, K. Anantharaman

The paper identifies 227 auxiliary metabolic genes in 191 phages from twelve environments, showing their role in sulfur and thiosulfate oxidation and ecological impact on biogeochemistry.

bioRxiv · Aug 24, 2020Microbiology

A large-scale assessment of lake bacterial communities reveals pervasive impacts of human activities

S. Kraemer, N. B. da Costa, B. J. Shapiro, Y. Huot, D. A. Walsh

This study assesses the impact of human activities on bacterial communities in 220 lakes across Eastern Canada, finding widespread changes in richness, composition, and network structure.

bioRxiv · Nov 20, 2019 · PreprintEcology