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David Enard

@denard.bsky.social

Evolutionary Biologist. Ancient epidemics. Genomic adaptation.

1,371 Followers  |  294 Following  |  165 Posts  |  Joined: 30.08.2023  |  2.0672

Latest posts by denard.bsky.social on Bluesky

That looks great! To avoid errors due to starting with spotty gene annotations (gene loss vs. not annotated), I would suggest re-annotating every genome used with TOGA2 from the Hiller lab:
github.com/hillerlab/TO...
Many annotations out there are not optimal and TOGA2 has great power and accuracy.

30.01.2026 14:58 โ€” ๐Ÿ‘ 4    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Calling all OrthoFinder users!

Weโ€™ve just released GLADE, a tool to infer gene gains, losses, duplications, and ancestral genomes across a phylogeny.

GLADE runs directly on OrthoFinder results.
www.biorxiv.org/content/10.6...
github.com/lauriebelch/...

(1/10)

29.01.2026 12:07 โ€” ๐Ÿ‘ 101    ๐Ÿ” 48    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 2
Rapid host adaptations in response to viral infections Viruses threaten all living organisms leading to molecular conflicts which have shaped hosts over evolutionary timescales. This meeting seeks to gather scientists from diverse disciplines including genomics, population genetics, innate immunology, virology, and beyond, to explore the evolution, diversity, molecular basis, and dynamics of these conflicts.

๐Ÿ“ฃ *Abstract submission by January 31st*

"Host adaptations to viral infectionsโ€ International Meeting
May 10th-13th 2026
@cnrs.fr Station Biologique Roscoff, Brittany, France

Register & Join us +amazing international speakers!
#CNRS @cnrsbiologie.bsky.social #IRP

www.insb.cnrs.fr/fr/evenement...

26.01.2026 17:20 โ€” ๐Ÿ‘ 6    ๐Ÿ” 8    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 1
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Homepage - 2026 Population, Evolutionary, and Quantitative Genetics Conference Visit our website to learn more.

PEQG! My favorite conference ever*. Single session, fantastic talks, great discussions. Only once every 2 years. And in the best conference location too! Abstract deadline coming up Feb 5!

*Disclosure: I am required to say it's the best conference because it is and I told my mom I wouldn't lie.

23.01.2026 14:37 โ€” ๐Ÿ‘ 48    ๐Ÿ” 26    ๐Ÿ’ฌ 2    ๐Ÿ“Œ 1

This is shaping up to be a great workshop. There is still time to register before the deadline! Please RT! #evolution #viruses #pathogens

23.01.2026 15:25 โ€” ๐Ÿ‘ 3    ๐Ÿ” 2    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Funny since Judo is in fact a LOT about sweeps and disequilibrium!

22.01.2026 14:04 โ€” ๐Ÿ‘ 2    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

I forgot using tags again: #evolution #genomics #machinelearning #CNNs

22.01.2026 13:05 โ€” ๐Ÿ‘ 2    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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Patterns of shared signatures of recent positive selection across human populations Signatures of recent positive selection often overlap across human populations, but the question of how often these overlaps represent a single ancestral event remains unresolved. If a single selective event spread across many populations, the same ...

5/5) To learn about normalizing sweeps stats by recombination bins, below is a great paper:
pmc.ncbi.nlm.nih.gov/articles/PMC...

22.01.2026 13:01 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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Domain-adaptive neural networks improve supervised machine learning based on simulated population genetic data Author summary Population genetic simulation is a powerful tool in the study of evolution. A number of supervised machine learning methods have been developed that take advantage of inexpensive simula...

4/5) We also find in preliminary tests that DANN form the Siepel lab really helps mitigating these issues:
journals.plos.org/plosgenetics...

22.01.2026 13:01 โ€” ๐Ÿ‘ 2    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

3/5) real genome. A stat like iHS for example, or anything haplotype-based really. We are working on adding this to Flexsweep and preparing a manuscript, but even before that anyone using CNNs for sweep analysis should be very careful about recombination.

22.01.2026 13:01 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

2/5) , and/or normalizing statistics by local recombination rate is really important. This is because many sweep stats values depend on local recombination rate, and thus normalization based on genome-wide variants will be heavily dependent on the recombination simulated in the training vs. in the

22.01.2026 13:01 โ€” ๐Ÿ‘ 2    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

1/5) After months scratching our heads (Is this why I am bald?) when analyzing the performance of CNNs to find sweeps in real genomes, postdoc Jesus Murga Moreno figured out that training with simulations with recombination that closely reflects the distribution of recombination in the real genome

22.01.2026 13:01 โ€” ๐Ÿ‘ 3    ๐Ÿ” 1    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 1

Very interesting alternative to maximum likelihood to reconstruct ancestral sequences.

22.01.2026 01:59 โ€” ๐Ÿ‘ 3    ๐Ÿ” 2    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

Interesting to think about in the context of mass extinctions. Is there evidence of very large but phenotypically homogenous species having greater extinction probability?

20.01.2026 12:47 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Indeed!

15.01.2026 02:45 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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Rare variation in malaria parasites biases population-genetic inference Understanding how pathogens evolve is fundamental to disease control and is a basic question in evolutionary biology, yet pathogens with complex life cycles violate assumptions of classic evolutionary...

New preprint! and my first single-author paper, so bear with me.
www.biorxiv.org/content/10.6...

Malaria population genetic studies have found some puzzling patterns: Ne estimates spanning orders of magnitude, genome-wide negative Tajima's D, and over a quarter of genes with ฯ€N/ฯ€S >1

1/n

14.01.2026 22:03 โ€” ๐Ÿ‘ 61    ๐Ÿ” 19    ๐Ÿ’ฌ 2    ๐Ÿ“Œ 1
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Registration deadline is fast approaching for the "Host adaptations to viral infectionsโ€ Meeting May 10th-13th, 2026, at the CNRS Station Biologique de Roscoff, Brittany, France! JOIN US and the many amazing speakers! JOIN US!

sites.google.com/berkeley.edu...

14.01.2026 04:50 โ€” ๐Ÿ‘ 18    ๐Ÿ” 14    ๐Ÿ’ฌ 4    ๐Ÿ“Œ 2
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GitHub - ranwez-search/SeqTUI: A fast terminal-based viewer and command-line toolkit for molecular sequences (DNA, AA). View, translate, convert (to FASTA), and combine sequences aligned or not โ€” all ... A fast terminal-based viewer and command-line toolkit for molecular sequences (DNA, AA). View, translate, convert (to FASTA), and combine sequences aligned or not โ€” all from the terminal. - ranwez-...

Just sharing new tool written by Vincent Ranwez to view and manipulate sequences and alignments directly in your terminal
github.com/ranwez-searc...
Pretty convenient!

13.01.2026 12:42 โ€” ๐Ÿ‘ 15    ๐Ÿ” 10    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

I use it every year at the start of my popgen course, asking the students to think about how they can explain what they see.

10.01.2026 14:55 โ€” ๐Ÿ‘ 4    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
GHIST logo

GHIST logo

Congratulations to the winners of the 2025 Genomic History Inference Strategies Tournament challenges!

Among the 9 challenges, we had five winners: @alwaysrong.bsky.social, @adaigle.bsky.social, @andrewhvaughn.bsky.social, @thymelicus.bsky.social, @rgollnisch.bsky.social

15.12.2025 18:48 โ€” ๐Ÿ‘ 20    ๐Ÿ” 10    ๐Ÿ’ฌ 2    ๐Ÿ“Œ 0

Final version of paper with @smishra677.bsky.social now published in a wonderful issue of GENETICS!

academic.oup.com/genetics/art...

08.01.2026 13:57 โ€” ๐Ÿ‘ 26    ๐Ÿ” 16    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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The collision of two genomes threatens global food security Human activity alters selection pressures and species' ranges, creating opportunities for hybridisation through secondary contact. Ancient hybridization has enabled adaptive radiation, but its role in...

Excited about our new preprint showing bidirectional adaptive introgression between invasive and native crop pests over ecological timescales www.biorxiv.org/content/10.6...

26.12.2025 11:21 โ€” ๐Ÿ‘ 66    ๐Ÿ” 18    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 4
a man in a suit and tie is making a funny face . ALT: a man in a suit and tie is making a funny face .
24.12.2025 19:49 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Si c'est pour des fruits de mer ou des asperges c'est inexcusable.

24.12.2025 19:43 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
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Genes donโ€™t explain what made humans different Tiny genetic variations between humans, Neanderthals and Denisovans might not be all they were cracked up to be.

This headline is wrong and misleading, and the brief text below it is not much better. Whatever might constitute a full explanation of the differences between sapiens and other hominins, we remain confident that 'genes' will be central to it.

www.nature.com/articles/d41...

19.12.2025 11:55 โ€” ๐Ÿ‘ 58    ๐Ÿ” 18    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 2

Check the latest preprint from the lab, #Virus, #evolution, #VirusEvolution, armchair #virology

19.12.2025 16:40 โ€” ๐Ÿ‘ 9    ๐Ÿ” 2    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Ha, noob mistake then, I was not aware they are so important on this platform! Thank you for the tip!

19.12.2025 16:37 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

Hopefully that will turn out to be true :)

19.12.2025 16:33 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

I am mostly disappointed for the student, they put a lot of effort in it.

19.12.2025 16:21 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

The number of RTs for this preprint that took an absolutely massive amount of work and conceptual effort is interesting to say the least. Probably time to try other avenues of dissemination.

19.12.2025 16:18 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 2    ๐Ÿ“Œ 0

@denard is following 20 prominent accounts