Author

Yexuan Song

Simon Fraser UniversityORCID 0009-0004-8316-4293Unclaimed ORCID profile · follow to get notified of new preprints

Biology Disciplines

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Evolutionary Biology· 1 Genetics· 1 Microbiology· 1

Signature Assays, Organisms & Methods

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Approach:statistical model· 3 Research Focus:phylogenetics / evolution· 2 Organism:virus· 2 Approach:deep learning· 1 Assay:whole-genome sequencing· 1

Frequent Co-Authors

Caroline ColijniD· 3 shared Ailene MacPhersoniD· 2 shared Barney I. PotteriD· 1 shared Benjamin SobkowiakiD· 1 shared Isabel RancuiD· 1 shared Ivan Gill· 1 shared Melanie H. ChitwoodiD· 1 shared Nelly CiobanuiD· 1 shared

Activity by Year

2024-2026 · peak 1/yr

Co-Author Collaboration Network

10 top collaborators · 31 mutual co-author links

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3 shared papersMicrobiology

Caroline ColijnORCID

Mutual co-authors in cluster

Author profile →

3 papers

Recent·Most cited

The global phylogeography of rapidly expanding multidrug resistant Ural lineage 4.2 Mycobacterium tuberculosis

Melanie H. Chitwood, Isabel Rancu, Yexuan Song, Barney I. Potter, Yi Ting Chew, Nelly Ciobanu, Valeriu Crudu, Caroline Colijn, Ted Cohen, Benjamin Sobkowiak

The paper identifies a rapidly expanding multidrug-resistant M. tuberculosis clade originating from Russia and circulating in Moldova, posing a threat to MDR-TB control.

Nature Communications · Mar 31, 2026Peer-reviewedMicrobiology

Sampling Aware Ancestral State Inference

Yexuan Song, Ivan Gill, Ailene MacPherson, Caroline Colijn

This study introduces SAASI, a method that improves ancestral state inference by accounting for sampling bias, and demonstrates its effectiveness in reconstructing H5N1 virus transmission in the US.

bioRxiv · May 20, 2025 · PreprintEvolutionary Biology

The distribution of clade size in a coalescent diversification model

Yexuan Song, Caroline Colijn, Ailene MacPherson

The paper derives a closed-form expression for clade size distribution under the Kingman coalescent model and extends it to time-varying niche numbers.

bioRxiv · Nov 3, 2024 · PreprintGenetics