Rasmus Kirkegaard
@kirk3gaard.bsky.social
๐ค 470
๐ฅ 255
๐ 99
Staff scientist having fun with DNA seq and bioinformatics at
#AlbertsenLAB
pinned post!
Want
@nanoporetech.com
data for benchmarking microbe related stuff? Check our data for pure cultures,
@zymoresearch.bsky.social
mocks and metagenomes (
github.com/Kirk3gaard/M...
). Basecalled reads with methylation is in
@enasequence.bsky.social
. Eventually the pod5s might go there as well.
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GitHub - Kirk3gaard/MicroBench: Overview of our data for microbial genomic benchmarking
Overview of our data for microbial genomic benchmarking - Kirk3gaard/MicroBench
https://github.com/Kirk3gaard/MicroBench
10 months ago
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Anyone gotten their hands on something crazy? Nvidia B200 or B300?
add a skeleton here at some point
about 9 hours ago
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Alex Loy
24 days ago
๐ข 20 postdoctoral positions (full-time, 4 years) for outstanding female scientists ๐ฉโ๐ฌ ๐ฌ
@univie.ac.at
The E-STEEM programme call opens January 7th, 2026 and closes March 3rd, 2026.
careers.univie.ac.at/en/postdoc/e...
I participate as a host...
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https://careers.univie.ac.at/en/postdoc/e-steem
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The
@nanoporetech.com
๐ forgot the wrapping paper ๐๐
30 days ago
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One flowcell from
@nanoporetech.com
yielded 260 Gbp ๐๐๐คฏ๐ฉ
about 1 month ago
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Imagine sequencing the DNA of an entire country. Many colleagues have worked for years to sequence the DNA of soil and sediment samples covering Denmark to characterise the Danish microbial diversity ๐งฌ๐๐๐คฏ
add a skeleton here at some point
about 1 month ago
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Steven Robbins
about 2 months ago
Metagenomics colleagues! I'm looking for studies where both Illumina and ONT sequencing were performed on the same samples from soil, human, ruminent, and other sample types for comparison. Bonus if those studies include PacBio data. Please help and share!
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Dan Portik
2 months ago
Revio is a great product - it dramatically increased throughput over Sequel II (3x more data per cell, 12x more data per fully loaded run) and dropped the cost substantially. It's been the most successful instrument launch for the company, and now PacBio sequencing is at an all time high.
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Beating our previous record by a wide margin I asked myself "Are
@nanoporetech.com
flowcells getting better?" ๐๐ฉ๐งฌ Let's find out! I created a form where you can register your yields so we can get a better overview.
github.com/Kirk3gaard/O...
add a skeleton here at some point
2 months ago
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Did not expect to see disk space become an issue but after a disk clean up and restart I ended up with 243 and 244 gbp for these two
@nanoporetech.com
flowcells ๐๐๐งฌ ๐๐ฉ๐๐ฉ๐๐ฉ
2 months ago
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After a day with almost 30 participants in the lab for our hands on
@nanoporetech.com
metagenomics course it is a blessing to see ๐ฉ๐ฉ๐ฉ๐ฉ๐ฉ๐ฉ๐ฉ๐ฉ๐ฉ
2 months ago
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Albert Vilella, PhD.
2 months ago
@kirk3gaard.bsky.social
, not recently active on Bluesky, on the 'tech bro' backing of Oxford
@nanoporetech.com
. We kind of already have a
#techbro
backing ONT,
#LarryEllis
who is one of the main investors and has put a ton of money into Oxford's EIT.
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A. Murat Eren (Meren)
3 months ago
Please share this with anyone who may be interested in a post-doc in Germany:
jobs.awi.de/Vacancies/20...
This is quite an exciting opportunity to push the boundaries of what is known regarding the molecular basis of the formation and demise of photosymbiotic relationships in marine habitats.
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Anyone else seeing
@nanoporetech.com
flowcells starting to "die" exactly around 72 hours? Could this be voltage control not being optimised for longer durations?
3 months ago
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Roland Hatzenpichler
3 months ago
Preprint: Comparing BONCAT and MAR. Pro tips: don't buy the ClickIT kit, it's 25x overpriced as compared to buying individual chemicals by themselves (see my 2015 protocol chapter) and making reagents fresh gives superior results. And yes, only use picolyl dyes, my lab has been doing so since 2018.
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How I like my
@nanoporetech.com
runs ๐ฉ๐๐ฉ๐๐งฌ
3 months ago
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Ian Marshall
3 months ago
I'm recruiting a postdoc to figure out how aerobic methanotrophic bacteria oxidise methane in anoxic freshwater sediment environments:
international.au.dk/about/profil...
Come to Aarhus University in Denmark and work on this 2-year project funded by
@villumfonden.bsky.social
!
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Postdoctoral position on methanotrophic bacteria - Vacancy at Aarhus University
Vacancy at Department of Biology - Microbiology, Aarhus University
https://international.au.dk/about/profile/vacant-positions/job/postdoctoral-position-on-methanotrophic-bacteria
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You load one
@nanoporetech.com
flowcell and it almost ruins your day ๐ฉ๐ฉ๐ฉ. You load six more and they look stunning ๐ฉ๐๐ฉ๐๐๐ฉ
3 months ago
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Kathi Kitzinger
3 months ago
Still 10 days left to apply! ๐ฆ ๐งช๐ฉโ๐๐ฌ Come work with my team in beautiful Vienna!
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Wouter De Coster
3 months ago
208Gb and can't tell you because it was for a customer
@timdepooter.bsky.social
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Tim De Pooter
3 months ago
High yields are nice, but I think more important is highlighting the current robustness of the PromethION platform. In 2 weeks we processed 48 FC's resulting in 7.4Tb of data. That's over 150GB per FC on average. We definitely need to start thinking about mutliplexing.
@nanoporetech.com
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Teppo Hiltunen
3 months ago
Professor (full) or Associate Professor (tenure track) in Microbial Genetics of Health (U. Turku Finland). Competitive starting package included! Please share.
duunitori.fi/tyopaikat/ty...
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Professor or Associate professor (Tenure Track/Full) in Microbial Genetics of Health - Turun yliopisto - Tyรถpaikat - Duunitori
Avoin tyรถpaikka: Professor or Associate professor (Tenure Track/Full) in Microbial Genetics of Health - Turun yliopisto, Turku. Duunitorilla lisรคksi yli 30 000 muuta avointa tyรถpaikkaa. Lue lisรครค nyt!
https://duunitori.fi/tyopaikat/tyo/professor-or-associate-professor-tenure-trackfull-in-microbial-genetics-of-health-stsur-19627560
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Rasmus Kirkegaard
3 months ago
193-200Gbp without any washing step (sewer biofilms & soil enrichments) โ๏ธ๐
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Alex Crits-Christoph
3 months ago
Wow! I am very much against this. The deep value of GenBank is in it being a public domain database with 0 limitations on use. The norm that when we publish, we share the sequencing data supporting its claims *with 0 limitations on use* is so important for open science. I hope it doesn't change!
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What is your highest yield on a
@nanoporetech.com
flowcell? And what was the sample type?
3 months ago
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Steven Robbins
5 months ago
Ahh, have you seen this one? To me, this is the crown jewel of long read metagenomics at the moment? Gives some guidelines on how deep you need to sequence soil to get decent MAG recovery.
www.nature.com/articles/s41...
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Genome-resolved long-read sequencing expands known microbial diversity across terrestrial habitats - Nature Microbiology
Nanopore sequencing of Danish soils and sediments yields genomes from over 15,000 microbial species, expanding the phylogenetic diversity of prokaryotes by 8%.
https://www.nature.com/articles/s41564-025-02062-z
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Have not done much
@nanoporetech.com
sequencing lately but this looks pretty ๐ฉ๐ฉ๐ฉ๐ฉ๐ฉ๐ฉ
#MFDExtreme
7 months ago
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Gotta catch em all! A little late night sampling for the MFD Extreme project. What microbes call this sand their home?
7 months ago
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Beautiful evening for sampling. Microbes live in so many funky places and I finally got the chance to hunt them in locations that were not wastewater treatment plants ๐๐ฆ ๐งฌ๐ฉ๐ฐ
#MFDExtreme
7 months ago
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Kathi Kitzinger
7 months ago
Slowly it's sinking in ๐ Very excited about my new role as
#Assistant
#Professor
@univie.ac.at
@cemess.bsky.social
! ๐ฆ ๐ฉโ๐๐ฌ It's great to be part of this fantastic team of friends and colleagues! ๐งช
#Microsky
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A. Murat Eren (Meren)
7 months ago
We have a new 3-year postdoc position in our group at the
@hifmb.de
to study plasmids and plasmids systems of the marine environment to survey their utility in microbial responses to environmental change. Please see the official job ad here, and spread the word:
jobs.awi.de/Vacancies/20...
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PostDoc in ecology and evolution of plasmids in polar waters at HIFMB (f/d/m)
Layout AWI HIPP extern, englisch
https://jobs.awi.de/Vacancies/2002/Description/2
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Can we please get Dorado 1.0.0+ in
@nanoporetech.com
minknow ASAP? 4090 also jumps quite a bit and is getting closer to support a full P2S with live sup ๐
7 months ago
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Got a chance to take the
@nanoporetech.com
hyp(er accuracy) model for a spin. Pretty decent improvement in read quality ๐ but expect to spend quite some more GPU hours ๐ (Reads were mapped with minimap2 and identity scores from nanoplot were used for phred score calculations)
7 months ago
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Alexander Price
7 months ago
With all that is happening it is very exciting to see the Price Lab's very first, in-house, Oxford Nanopore direct RNA seq running! Not bad for a ~3 year expired flow cell!
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Wandering while wondering if this sample cup will hold a story exciting enough for
@isme-microbes.bsky.social
conference in New Zealand next year ๐ฆ
7 months ago
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Ryan Wick
8 months ago
I tested myloasm on a 50x Klebsiella isolate, and it was very fast - only took about 1 minute to complete (on my Macbook).
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Alex Crits-Christoph
7 months ago
Promising toolkit for binning and visualizing assembly graphs. The assembly graph is an underutilized source of binning information IMO
gbintk.readthedocs.io/en/latest/
add a skeleton here at some point
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Jim Shaw
8 months ago
It seems we can assemble (reasonably simple populations) of co-existing strains with ONT data now. We assembled 6 single-contig Prevotella copri genomes of > 97% ANI for one metagenome. 4 of them were circular. (The largest metaFlye P. copri contig was 13.4% complete)
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Jim Shaw
8 months ago
Announcing myloasm, a new long-read (ONT R10/PacBio) metagenome assembler that I've been working on during my postdoc in the Heng Li lab (
@lh3lh3.bsky.social
).
myloasm-docs.github.io
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myloasm - metagenomic assembly with (noisy) long reads
https://myloasm-docs.github.io/
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Ryan Wick
8 months ago
Most of the remaining errors are homopolymer-length errors, e.g. the genome had Gร11 but the assembly had Gร10. The rest are mostly 1-bp substitutions and indels. Often these occur at similar motifs within a genome.
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Ryan Wick
8 months ago
New blog post! In it, I benchmark the new version of Dorado from
@nanoporetech.com
, which comes with new DNA basecalling models. Short version: big accuracy gains for hac, small improvements for sup. Check it out for the full results:
rrwick.github.io/2025/05/27/d...
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Dorado v1.0.0 and the v5.2.0 basecalling models
a blog for miscellaneous bioinformatics stuff
https://rrwick.github.io/2025/05/27/dorado-v1.html
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Steven Robbins
8 months ago
Short-read metagenomic sequencing cannot recover genomes from many abundant marine prokaryotes due to high strain heterogeneity and platform-inherent GC bias (likely viruses, too), but Nanopore long reads can address this. A results thread on our recent preprint ๐งต.
add a skeleton here at some point
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Steven Robbins
8 months ago
In addition to anti-GC and strain bias, certain taxa show systematically underestimated completeness via CheckM1 and 2, so historically much more likely to get erroneously thrown away in fragmented Illumina MAGsโa third reason for the existence of Ghost Taxa. A sub-sub-thread ๐งต.
add a skeleton here at some point
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ARTIC Network
8 months ago
ARTIC 2 is here!
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Steven Robbins
8 months ago
Very excited to present the Great Barrier Reef Microbial Genomes Database (GBR-MGD), a comprehensive DB of 1000s of high-quality prokaryote, virus, plasmid, and chromosome-level eukaryote MAGs using Nanopore long reads. Subthreads incoming. Please share widely. ๐
www.biorxiv.org/content/10.1...
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The planktonic microbiome of the Great Barrier Reef
Large genome databases have markedly improved our understanding of marine microorganisms. Although these resources have focused on prokaryotes, genomes from many dominant marine lineages, such as Pela...
https://www.biorxiv.org/content/10.1101/2025.05.13.653689v1.full-text
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Daan Speth
8 months ago
Come join us in Vienna september 8-11 for a great conference on all things microbial Nitrogen cycle abstract deadline is June 15th!
add a skeleton here at some point
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Adam Phillippy
8 months ago
The human pangenome continues to grow and improve! Release 2 is here! Click through for the details, but this is a pretty amazing dataset including not just the phased assemblies, but PacBio HiFi, ONT Ultralong, Dovetail/Illumina Hi-C, PacBio Kinnex, and Illumina WGS for all samples
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"they only exist in computers so far" ๐คฃ๐คฃ๐คฃ I do not trust microbes exist unless I can see them without a microscope ๐คฃ๐คฃ๐คฃ
add a skeleton here at some point
8 months ago
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Alex Crits-Christoph
8 months ago
Here's another comparison for you: "On average, 36.4% of reads mapped back assemblies, and for some samples this mapping was as high as 64.7%" from
www.nature.com/articles/s41...
(range for all samples in Table S1)
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Mediterranean grassland soil CโN compound turnover is dependent on rainfall and depth, and is mediated by genomically divergent microorganisms - Nature Microbiology
Using metagenomics and proteomics on Mediterranean grassland soil samples resulted in the recovery of 793 metagenome-assembled genomes and provided insights into microbial activity in this environment...
https://www.nature.com/articles/s41564-019-0449-y
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Robin Rohwer
8 months ago
What percent reads mapped to MAGs is "good" for soil or sediment samples? is lower than water samples OK/expected due to more complex communities? ๐ ๐ฅ๏ธ๐งฌ microbiome, metagenomics
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The Banfield Lab
9 months ago
Genomes from long-read metagenomic assemblies contain rampant errors, highlighting the pressing need for stricter evaluation methods in long-read assembly algorithms. Read more in our paper with the Eren group.
@floriantrigodet.bsky.social
@merenbey.bsky.social
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