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Torsten Seemann

@torstenseemann

Professor @ University of Melbourne, Australia Microbial bioinformatics, genomics, software, clinical and public health microbiology https://tseemann.github.io

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24.09.2023
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Latest posts by Torsten Seemann @torstenseemann

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Release SeqKit v2.13.0 (10-year-old birthday version) Β· shenwei356/seqkit Changelog SeqKit is 10 years old! SeqKit v2.13.0 - 2026-02-28 seqkit: add support for reading and writing LZ4 compression format. new command: seqkit sample2: improved seqkit sample by @stahiga....

Can't wait to release a 10-year-old birthday version for SeqKit!

- 10 years
- 2 papers, 3500 citations
- 20 contributors
- 40 subcommands
- 880 commits
- 500 issues
- 685.5K Bioconda total downloads

Thank you all, dear contributors and users!
I'll keep maintaining it.

github.com/shenwei356/s...

27.02.2026 13:25 πŸ‘ 123 πŸ” 35 πŸ’¬ 6 πŸ“Œ 1

Joining the All-The-Bacteria project provides an annualised return on investment of 8.9% bacterial genomes.

27.02.2026 07:29 πŸ‘ 17 πŸ” 3 πŸ’¬ 0 πŸ“Œ 1

@wytamma.bsky.social 's WASM tools have transformed my experience of teaching Python to first year undergraduate biologists this year. Since last year, I've been teaching ~400 undergrads how to code (functions, lists, dictionaries, loops) over (one hour intro lecture +) two 2-hour practicals. 1/n

25.02.2026 22:33 πŸ‘ 60 πŸ” 17 πŸ’¬ 3 πŸ“Œ 1
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β€ŽGemini - direct access to Google AI Created with Gemini

I used it to create a microbial bioinformatics G-Funk 90's rap snippet πŸ˜†

gemini.google.com/share/1df0e1...

22.02.2026 00:08 πŸ‘ 9 πŸ” 2 πŸ’¬ 1 πŸ“Œ 0
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It was only a matter of time Google Gemini added music to its image and video offerings... gemini.google.com/app

21.02.2026 23:42 πŸ‘ 1 πŸ” 1 πŸ’¬ 1 πŸ“Œ 0
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Patrick / coffeestains Β· GitLab This package provides an essential feature to LaTeX that has been missing for too long. It adds a coffee stain to your documents. A lot of time can...

A LaTeX package to add coffee strains to your documentsπŸ˜†
framagit.org/Pathe/coffee...

09.02.2026 05:31 πŸ‘ 7 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
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Patrick / coffeestains Β· GitLab This package provides an essential feature to LaTeX that has been missing for too long. It adds a coffee stain to your documents. A lot of time can...

framagit.org/Pathe/coffee...

09.02.2026 05:30 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

πŸƒπŸ”€ Let me shuffle that deck of cards for you!

printf "%s\n" {2,3,4,5,6,7,8,9,10,J,Q,K,A}{β™ ,β™₯,♦,♣} | shuf | xargs -n 9

K♣ 5♣ 6β™  4β™  3♦ J♦ 7♦ 8♣ 9β™ 
2β™  9β™₯ Jβ™₯ 9♣ 10β™  J♣ Qβ™₯ 7β™  Qβ™ 
6β™₯ Aβ™  8β™  10β™₯ Kβ™₯ 10♦ 4♣ A♣ Aβ™₯
5♦ 5β™₯ 6♣ Jβ™  Q♣ A♦ 3♣ 4β™₯ 3β™ 
4♦ 3β™₯ Kβ™  7β™₯ 6♦ 8♦ 7♣ K♦ 8β™₯
9♦ 2β™₯ 5β™  10♣ Q♦ 2♦ 2♣

21.01.2026 06:15 πŸ‘ 14 πŸ” 1 πŸ’¬ 1 πŸ“Œ 0
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Intro to R for Biologists Ever wanted to visualise your own data? You can with R!

"Intro to R for Biologists" – Learn to visualise biological data with R!

Led by Jessica Chung (Melbourne Bioinformatics), this free in-person workshop on 24 February at 21 Bedford St, North Melbourne covers loading data, creating plots with ggplot, and working with RNA-seq data using tidyverse.

20.01.2026 23:02 πŸ‘ 2 πŸ” 1 πŸ’¬ 1 πŸ“Œ 0
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GitHub - ebiggers/libdeflate: Heavily optimized library for DEFLATE/zlib/gzip compression and decompression Heavily optimized library for DEFLATE/zlib/gzip compression and decompression - ebiggers/libdeflate

πŸ—œοΈβš‘ If you use gzip/gunzip a lot in your pipelines, switch to the faster"libdeflate" versions instead! They use modern CPU capabilities to achieve a 2-3x speedup.

libdeflate is in conda, and "libdeflate-gzip" and "libdeflate-gunzip" are drop-in replacements. #unix

github.com/ebiggers/lib...

20.01.2026 01:37 πŸ‘ 71 πŸ” 23 πŸ’¬ 1 πŸ“Œ 0
Pre-compute all possible distance pairs Β· Issue #61 Β· tseemann/snp-dists Conversation: https://bsky.app/profile/darrenmartin.bsky.social/post/3mbbsqml4o22n

Although the idea is cool, for the case of {ATGC} alphabet and match=1 mismatch=0, it would probably slow it down. But I am planning to include support for larger IUPAC alphabet which has more complex scoring, so your method would be more efficient. FIled at github.com/tseemann/snp... - thanks!

03.01.2026 21:08 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

No I don't do that; but it's a very cool approach, esp as the index will fit in cache. I am using multi-threading across rows, and using SIMD vector instructions columns (16 to 32 sites per CPU instruction. I'll make an issue to compare these methods!

03.01.2026 21:02 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

It takes a multiple sequence alignment, usually a set of pseudomolecules from a snp calling pipeline against a reference

31.12.2025 10:47 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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Release Go the distance even faster Β· tseemann/snp-dists Speed major fix to CPU parallelisation - far better scaling -x maxdiff option to short-circuit distant pairs -L option to only calculate the lower triangle of the matrix (2x faster) Features -t ...

πŸ’Ύ snp-dists 1.2.0

Major upgrade to this distance matrix tool - huge performance gains from multithreading (-j), max distance short circuiting (-x) and lower triangle output (-L).

#bioinformatiocs #microbiology #genomics
github.com/tseemann/snp...

31.12.2025 01:58 πŸ‘ 24 πŸ” 7 πŸ’¬ 2 πŸ“Œ 1
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Release Next time I'll try to be FASTA Β· tseemann/any2fasta New features Option -k is keep processing even when some inputs fail option -g to include GBK version suffix option s to strip desc from>id desc in ID lines Support for PDB protein structure forma...

πŸ’Ύ any2fasta 0.8.1 is released!

The FASTA format is now 40 years old (Pearson & Lipman) and any2fasta makes it easy for your scripts and pipelines that accept FASTA to also accept other formats, even if compressed! eg. .gbk.gz

#bioinformatiocs #microbiology #genomcs
github.com/tseemann/any...

30.12.2025 05:16 πŸ‘ 45 πŸ” 15 πŸ’¬ 1 πŸ“Œ 0
GitHub - centre-pathogen-genomics/snippy-ng Contribute to centre-pathogen-genomics/snippy-ng development by creating an account on GitHub.

This is why @wytamma.bsky.social and I have been writing SNIPPY-NG ! It will support short reads, long reads, and assemblies as inputs. You can check it out at github.com/centre-patho...

It's not ready for prime-time yet, but it's useable!

30.12.2025 05:07 πŸ‘ 8 πŸ” 3 πŸ’¬ 1 πŸ“Œ 0

Happy Bioinformatics Xmas!
The annual celebration of the unknown amino acid.
#bioinformatiocs #humour

25.12.2025 00:31 πŸ‘ 10 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Releases Β· tseemann/mlst :id: Scan contig files against PubMLST typing schemes - tseemann/mlst

πŸ’Ύ mlst 2.25.0 has been released!

Fixed a bug that missed alleles in increasingly larger schemes like senterica (thanks @microbiologikat.bsky.social) and updated the databases.
#bioinformatiocs #microbiology #genomics

github.com/tseemann/mls...

22.12.2025 21:15 πŸ‘ 28 πŸ” 12 πŸ’¬ 1 πŸ“Œ 0

There is no such thing as tenure in Australia unfortunately. I still have to find my own salary. I'm hoping my 9th attempt for a NHMRC fellowship will succeed, results in Feb 2026. #australia #academia

22.12.2025 21:11 πŸ‘ 6 πŸ” 0 πŸ’¬ 2 πŸ“Œ 0
Release Heading into the sunset Β· tseemann/prokka The future This is probably the last release of Prokka. I won't be making any code changes except bug fixes. I will update the databases occasionally. I strongly recommend you use Bakta by @oschwen...

πŸ’Ύ Prokka 1.15.6 is released!

This is the last major release of Prokka. But don't be sad, because @oschwengers.bsky.social already has an excellent replacement called Bakta you can migrate to.
#bioinformatics #microbiology #genomics

github.com/tseemann/pro...

15.12.2025 21:09 πŸ‘ 117 πŸ” 60 πŸ’¬ 3 πŸ“Œ 2
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Releases Β· tseemann/shovill βš‘β™ οΈ Assemble bacterial isolate genomes from Illumina paired-end reads - tseemann/shovill

πŸ’Ύ Shovill 1.4.1 has been released!
The best way to de novo assemble microbial genomes from Illumina FASTQ.
Major fixes to the SKESA module, plasmid mode for the Spades module, and more error checking.
#bioinformatiocs #genomics #microbiology
github.com/tseemann/sho...

13.12.2025 21:15 πŸ‘ 69 πŸ” 25 πŸ’¬ 0 πŸ“Œ 2
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Great to visit Melbourne & speak at the Doherty Institute yesterday, hosted by the newly crowned King Professor @torstenseemann.bsky.social . So many great microbial genomics folk out here; today at Monash, seeing @yekwah.bsky.social @kelwyres.bsky.social and co. So much great science+great students

04.12.2025 07:33 πŸ‘ 38 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
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Releases Β· tseemann/abricate :mag_right: :pill: Mass screening of contigs for antimicrobial and virulence genes - tseemann/abricate

πŸ’Ύ ABRicate 1.2.0 has been released!

This 'oversight' lasted 6 years, but with help from @finlaym.bsky.social we got CI working and updated all the databases. #bioconda #conda #bioinformatics #microbiology #genomics

github.com/tseemann/abr...

05.12.2025 23:27 πŸ‘ 48 πŸ” 20 πŸ’¬ 2 πŸ“Œ 0

This poster design was the hard work of @wytamma.bsky.social who is implementing Snippy-NG. You should follow him now - an amazing ECR who produces a lot of very cool stuff.

04.12.2025 01:42 πŸ‘ 15 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0
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It's not just because @torstenseemann.bsky.social is a bioinformatics legend but this may be my favourite #abacbs2025 poster because I'm a #trek tragic πŸ––

26.11.2025 00:34 πŸ‘ 38 πŸ” 10 πŸ’¬ 0 πŸ“Œ 1
Registration and abstract submission for MicroSeq2025 is open. Abstract submission closes August 8, 2025. Participants can register at microseqconference.com. MicroSeq2025 is an online meeting being held on September 3rd and 4th, focused on research being conducted on sequencing data generated from microbiological samples (bacteria, fungi, and viruses). MicroSeq2025 is supported by The Australian Society for Microbiology, the Australasian Virology Society, and Microbial Genomics.

Registration and abstract submission for MicroSeq2025 is open. Abstract submission closes August 8, 2025. Participants can register at microseqconference.com. MicroSeq2025 is an online meeting being held on September 3rd and 4th, focused on research being conducted on sequencing data generated from microbiological samples (bacteria, fungi, and viruses). MicroSeq2025 is supported by The Australian Society for Microbiology, the Australasian Virology Society, and Microbial Genomics.

🚨Abstract submission & registration for #MicroSeq2025 is OPEN! 🚨Get in quick! The first 50 registrations are FREE for PhD students and ECRs who are current ASM members, thanks to @aussocmic.bsky.social.

Head to our website to register now πŸ‘‡
www.microseqconference.com/registration...

21.07.2025 02:16 πŸ‘ 8 πŸ” 13 πŸ’¬ 1 πŸ“Œ 1
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Google Slides has a new "Stock images" option when you "Insert Image" - you get these two options for the search term #bioinfortmics ...

25.06.2025 23:09 πŸ‘ 7 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
Taxonomy Time Machine Explore and compare the history of the NCBI Taxonomy Database. Instantly browse, search, and reconstruct taxonomic lineages at any point in time. Open source, web-based, and API-accessible.

πŸš€ Pushed some updates to taxonomy.onecodex.com

- Example queries to help you get started
- Summary section for easier interpretation
- Perf. improvements

24.05.2025 21:38 πŸ‘ 6 πŸ” 5 πŸ’¬ 0 πŸ“Œ 0
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You might be wondering why we haven't updated outbreak.info for months.

Well, the reason is that GISAID cut our access in January - as they did others. Without telling us.

After a ♾️ back and forth, that is now permanent.

More on that soon - and why GISAID should not be trusted with critical data.

28.05.2025 23:02 πŸ‘ 263 πŸ” 124 πŸ’¬ 3 πŸ“Œ 10

On more than one occasion I've thought of a cool idea for a bioinformatics program only to realize @torstenseemann.bsky.social already wrote it a decade ago.

14.04.2025 04:53 πŸ‘ 8 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0