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Posts by Matthew Croxen

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1/ πŸš€ Exciting news: we’ve just released the first Nextclade dataset for Enterovirus D68 (EV-D68), developed in collaboration with the European Non-Polio Enterovirus Network (ENPEN).

πŸ‘‰πŸ» Check out the dataset on Nextclade! clades.nextstrain.org?dataset-name...

#EVD68 #Enterovirus #OpenData

5 months ago 54 16 1 3

My sense is to maybe check out canu. I don't know how well any polisher would be with a ploidy > 1 though.

7 months ago 1 0 1 0

Would think flye with long-read and polish using short-read with pypolca. Granted I don't know how complex your genome is, but I've had good success with 8 chr fungi (albeit haploid).

7 months ago 1 0 1 0
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Amplicon sequencing of pasteurized retail dairy enables genomic surveillance of H5N1 avian influenza virus in United States cattle Highly pathogenic avian influenza (HPAI) viruses with H5 hemagglutinin (HA) genes (clade 2.3.4.4b) are causing an ongoing panzootic in wild birds. Circulation of these viruses is associated with spill...

New in @plosone.org : Amplicon sequencing of pasteurized retail dairy reveals H5N1 avian influenza virus in U.S. cattle milk. Tiled-amplicon NGS achieved >90% genome coverage from pasteurized milk samples, enabling genomic surveillance of H5N1 spillover in cattle. journals.plos.org/plosone/arti...

10 months ago 29 12 2 0
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Black Microbiologists Association Moving Microbiology Forward

It’s Black Inclusion Week this week. If you are a Black microbiologist we would recommend connecting with the Black Microbiologists Association. They are working hard to increase visibility and facilitate connections: blackinmicrobiology.org #BlackInMicro #BIW2025

11 months ago 21 18 0 2

T7 is short enough that they can be designed at the 5' end of an oligo

11 months ago 1 0 0 0

I think it's a good idea, otherwise you are liking driving overexpression of downstream genes, or their antisense RNA (which may prevent translation). Or could mess up plasmid stability if it's replication is based on RNA like ColE1

11 months ago 1 0 0 0
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T7 terminator or rrnB T1T2 I used to use frequently

11 months ago 1 0 1 0

Are these optimized promoter sequences for strong constitutive expression? Perhaps you don't need as much product made, and can use a less efficient sequence?

Conversely clone into a lower copy number plasmid?

Transcriptional terminators may help.

11 months ago 1 0 1 0
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The Mycobacterium tuberculosis complex pangenome is small and shaped by sub-lineage-specific regions of difference The Mycobacterium tuberculosis complex (MTBC) is a group of bacteria causing tuberculosis (TB) in humans and animals. Understanding MTBC genetic diversity is crucial for insights into its adaptation a...

A new version of our Mtb pangenome preprint is out! Expanded analysis of the full pangenome data and answering all those questions the reviewers asked for ;). Great working with
@mabi-behruznia.bsky.social @danwhiley.bsky.social @blackpassiflora.bsky.social and others
www.biorxiv.org/content/10.1...

1 year ago 10 3 0 1
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The Matthew effect in science funding | PNAS A classic thesis is that scientific achievement exhibits a “Matthew effect”: Scientists who have previously been successful are more likely to succ...

Mathew effect

β€œβ€¦early funding success introduces a growing rift, with winners just above the funding threshold accumulating more than twice as much research funding (€180,000) during the following eight years as nonwinners just below it.”

www.pnas.org/doi/10.1073/...

1 year ago 5 4 1 0
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Global genomic epidemiology of bla GES-5 carbapenemase-associated integrons. Published #OpenAccess and fee-free in #MGen using a #PublishAndRead agreement: https://doi.org/10.1099/mgen.0.001312

1 year ago 1 3 0 0
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Home A tool for generating consensus long-read assemblies for bacterial genomes - rrwick/Autocycler

New year, new assemblies!
I'm excited to announce Autocycler, my new tool for consensus assembly of long-read bacterial genomes!
It's the successor to Trycycler, designed to be faster and less reliant on user intervention.
Check it out: github.com/rrwick/Autoc...
(1/5)

1 year ago 156 97 2 3
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Pathoplexus| Home Pathoplexus is a new, open-source database dedicated to the efficient sharing of human viral pathogen genomic data, fostering global collaboration and public health response.

One of the reasons I've been quiet on Bluesky for a few months is because I've been working on something big - something I'm really happy to share now! Pathoplexus.org
A new, open-source database for pathogen sequence sharing. πŸ‘πŸ§¬πŸŒŽ

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1 year ago 381 148 8 7
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Tracking arboviruses, their transmission vectors and potential hosts by nanopore sequencing of mosqu... The risk to human health from mosquito-borne viruses such as dengue, chikungunya and yellow fever is increasing due to increased human expansion, deforestation and climate change. To anticipate and pr...

This is v impressive from @pathogenomenick.bsky.social and Co. Trap mosquitoes with CO2 (dry ice), and by sequencing them+bloodmeal+viruses, you get information on host, vector and arboviruses. Piloted in Sao Paolo.
www.microbiologyresearch.org/content/jour...

2 years ago 26 10 1 0

1. Canadian researchers publish the first estimates of 2023-24 #flu vaccine effectiveness that I've seen to date, in Eurosurveillance. The VE is pretty good β€” 61% overall against H1N1, which was responsible for the vast majority of cases.
#EpiSky www.eurosurveillance.org/content/10.2...

2 years ago 42 27 2 3
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My attempt

2 years ago 1 0 1 0