Kosuke Takada
@kosuke-takada.bsky.social
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Postdoc in Eddie’s lab @ USYD | Virology | Evolution
reposted by
Kosuke Takada
Nature
5 days ago
Nature research paper: Assessing phylogenetic confidence at pandemic scales
go.nature.com/3WZMsaV
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Assessing phylogenetic confidence at pandemic scales - Nature
A method using subtree pruning and regrafting-based tree assessment (SPRTA), which considers evolutionary relationships between lineages, enhances interpretability of phylogenetic analyses such as those of SARS-CoV-2 variants.
https://go.nature.com/3WZMsaV
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We’ve identified a highly divergent betacoronavirus from South American bat that encodes a functional furin cleavage site. Another fascinating reminder of how diverse coronavirus evolution is in wildlife reservoirs.
#Virology
#VirusEvolution
#Bats
#Coronavirus
www.biorxiv.org/content/10.1...
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A divergent betacoronavirus with a functional furin cleavage site in South American bats
Bats are natural reservoirs for a wide range of RNA viruses. Members of the genus Betacoronavirus, including Severe Acute Respiratory Syndrome virus 2 (SARS-CoV-2) and Middle East Respiratory Syndrome...
https://www.biorxiv.org/content/10.1101/2025.10.24.684489v1
15 days ago
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reposted by
Kosuke Takada
Jon Mifsud
3 months ago
There’s been a bunch of new approaches looking at deep viral evolutionary history. We’ve put together a mini review highlighting some recent advancements in structural phylogenetics and time-dependent rate models and what they could do for the field 🦠 🔗
journals.asm.org/doi/full/10....
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Recent advances in the inference of deep viral evolutionary history | Journal of Virology
Phylogenetic studies examining the origins, emergence, and spread of viruses have arguably been one of the most active and successful areas of evolutionary biology and form the bedrock of the flourishing field of genomic epidemiology. This, in part, reflects the ability of viruses, particularly those with RNA genomes, to evolve at rates much greater than their cellular counterparts (1). The rapid rate at which viruses evolve and accumulate mutations enables evolutionary signals to be identified through comparative genomics at short timescales relevant for outbreak investigation and response. The integration of phylogenetics and epidemiology, known as phylodynamics, has become a vital tool in response to numerous viral outbreaks, epidemics, and pandemics, including Ebola (2), Zika (3), and, more recently, COVID-19 (4) and mpox (5).
https://journals.asm.org/doi/full/10.1128/jvi.00292-25
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reposted by
Kosuke Takada
Erin Harvey
5 months ago
I’m so excited to finally have this work published. Fantastic work from
@julienmelade.bsky.social
culturing a virus identified through metagenomic virus discovery methods
add a skeleton here at some point
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Luthfi did great work on H1N1pdm influenza viruses (isolate strains in 2016–2019)—proud to support his research!
www.nature.com/articles/s44...
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Characterization of A(H1N1)pdm09 influenza viruses isolated between 2016 and 2019 - npj Viruses
npj Viruses - Characterization of A(H1N1)pdm09 influenza viruses isolated between 2016 and 2019
https://www.nature.com/articles/s44298-025-00126-9
6 months ago
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reposted by
Kosuke Takada
Michelle Wille
6 months ago
Excellent, epic review of HPAI H5N1! 👉
www.nature.com/articles/s41...
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reposted by
Kosuke Takada
Michelle Wille
6 months ago
Rhys and I found some weird influenza B viruses in fish a few years ago. For 2, the HA's bind a2,3 sialic acid ("bird type receptor"). The Siamese algae eater virus NA has a highly conserved structure and active site. No cross-reactive antibodies in human sera. 👉
biorxiv.org/content/10.1...
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reposted by
Kosuke Takada
Eddie Holmes
7 months ago
Recombination between positive-sense and negative-sense RNA viruses:
journals.plos.org/plospathogen...
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A positive-sense single-stranded RNA virus acquired a negative-sense open reading frame through recombination
Author summary The discovery of brine shrimp virga-like virus 1 (BSVV1) challenges the conventional view that positive- and negative-sense RNA viruses are evolutionarily independent. Through genomic a...
https://journals.plos.org/plospathogens/article?id=10.1371/journal.ppat.1013015
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【My first achievement at Eddie Lab in 2025】 “Genome sizes of animal RNA viruses reflect phylogenetic constraints”
doi.org/10.1093/ve/v...
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Genome sizes of animal RNA viruses reflect phylogenetic constraints
Abstract. Animal genomes are characterized by extensive variation in size. RNA viruses similarly exhibit substantial genomic diversity, with genome lengths
https://doi.org/10.1093/ve/veaf005
9 months ago
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【My Key Achievements in 2024】 “Influenza B viruses are more susceptible to high temperatures than influenza A viruses”
doi.org/10.1038/s442...
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Influenza B viruses are more susceptible to high temperatures than influenza A viruses - npj Viruses
npj Viruses - Influenza B viruses are more susceptible to high temperatures than influenza A viruses
https://doi.org/10.1038/s44298-024-00077-7
9 months ago
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【My Key Achievements in 2024】 “Metagenomic analysis of the gut microbiota of hooded cranes (Grus monacha) on the Izumi plain in Japan.”
doi.org/10.1002/2211...
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FEBS Press
We analyzed metagenomic sequencing data obtained from fecal samples of hooded cranes and wild ducks that winter on the Izumi Plain in Japan. Various organisms were identified in each sample, and thei...
https://doi.org/10.1002/2211-5463.13881
9 months ago
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【My Key Achievements in 2024】 “Genes involved in the limited spread of SARS-CoV-2 in the lower respiratory airways of hamsters may be associated with adaptive evolution.”
doi.org/10.1128/jvi....
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Genes involved in the limited spread of SARS-CoV-2 in the lower respiratory airways of hamsters may be associated with adaptive evolution | Journal of Virology
The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) Omicron variant has spread worldwide since its emergence in late 2021, and its sub-lineages are established in human society. Compared ...
https://doi.org/10.1128/jvi.01784-23
9 months ago
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reposted by
Kosuke Takada
Michelle Wille
10 months ago
chimeric RdRps with PB1 genes from the 1918/1957/1968 pandemic IAVs in H2N1 LPAI backgrounds: 🔻 polymerase activity, virulence, and altered lung pathology vs native LPAI PB1 w 🔺 pathogenicity and polymerase activity in cells and mice. 👉
www.science.org/doi/full/10....
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