Author

Fiona Brennan

Teagasc - The Irish Agriculture and Food Development AuthorityORCID 0000-0002-2949-6180Unclaimed ORCID profile · follow to get notified of new preprints

Biology Disciplines

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Bioinformatics· 3 Microbiology· 2 Plant Biology· 1

Signature Assays, Organisms & Methods

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Organism:E. coli· 3 Approach:experimental assay· 3 Approach:statistical model· 3 Assay:whole-genome sequencing· 3 Assay:metagenomics· 2 Research Focus:variant calling· 2 Organism:bacteria (other)· 1 Research Focus:cell type annotation· 1

Frequent Co-Authors

Ashleigh HolmesiD· 3 shared Florence AbramiD· 3 shared Leighton PritchardiD· 3 shared Nicholas R. WatersiD· 3 shared Fiona WalshiD· 2 shared Aoife M. DuffiD· 1 shared Ben NolaniD· 1 shared C. M. Burgess· 1 shared

Activity by Year

2018-2026 · peak 2/yr

Co-Author Collaboration Network

10 top collaborators · 13 mutual co-author links

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3 shared papersBioinformatics

Ashleigh HolmesORCID

Mutual co-authors in cluster

Author profile →

6 papers

Recent·Most cited

A Novel Plasmid-Encoded Mobile Colistin Resistance Gene mcr-13.1 Detected in Escherichia coli Isolated from Grassland.

Marwa Alawi, Thị Thùy, Fiona Brennan, Catherine M. Burgess, Fiona Walsh

The paper identifies a novel mcr-13.1 gene in E. coli from grassland, showing its presence on an IncFIB plasmid and its resistance to colistin.

bioRxiv · Jul 21, 2026 · PreprintMicrobiology

Evaluation of combined root exudate and rhizosphere microbiota sampling approaches to elucidate plant-soil-microbe interaction

Carmen Escudero-Martinez, Eithne Y. Browne, Henning Schwalm, Michael Santangeli, M Brown, Lawrie K. Brown, D M Roberts, Aoife M. Duff, Jenny Morris, Pete E. Hedley, Peter Thorpe, James Abbott, Fiona Brennan, Davide Bulgarelli, Timothy George, Eva Oburger

The paper evaluates sampling methods for root exudates and rhizosphere microbiota in barley, finding comparable microbiota and exudation patterns across approaches.

New Phytologist · Apr 19, 2026Peer-reviewedPlant Biology

Genomic analysis of antimicrobial resistant Escherichia coli isolated from manure and manured agricultural grasslands

Ciara Tyrrell, C. M. Burgess, Fiona Brennan, D. Münzenmaier, David Drissner, R. J. Leigh, Fiona Walsh

This study identifies AMR E. coli in agricultural grasslands and manure, revealing genomic adaptations and resistance mechanisms.

npj Antimicrobials and Resistance · Feb 3, 2025Peer-reviewedMicrobiology

Mining underutilized whole-genome sequencing projects to improve 16S rRNA databases

Ben Nolan, Florence Abram, Fiona Brennan, Ashleigh Holmes, Vincent O’Flaherty, Leighton Pritchard, Nicholas R. Waters

The paper improves 16S rRNA databases by reassembling whole-genome sequencing data to generate high-quality sequences, enhancing taxonomic classification accuracy.

bioRxiv · Jan 1, 2021 · PreprintBioinformatics

Easily phylotyping E. coli via the EzClermont web app and command-line tool.

Nicholas R. Waters, Florence Abram, Fiona Brennan, Ashleigh Holmes, Leighton Pritchard

The paper implements an in silico Clermont PCR method for E. coli phylotyping as a web app and command-line tool.

Access Microbiology · Jun 19, 2020Peer-reviewedBioinformatics

riboSeed: leveraging prokaryotic genomic architecture to assemble across ribosomal regions

Nicholas R. Waters, Florence Abram, Fiona Brennan, Ashleigh Holmes, Leighton Pritchard

riboSeed improves bacterial genome assembly by leveraging conserved ribosomal operon flanking regions to bridge contigs and aid genome closure.

Nucleic Acids Research · Mar 12, 2018Peer-reviewedBioinformatics