Hunter Hill

Hunter Hill

@hunterhill.bsky.social

Postdoc in the Cooper lab, MT PhD in Drosophila genetics, currently interested in genome interactions and mechanisms of mitotic failure. Drosophila, heterochromatin, Wolbachia, endosymbiosis, embryogenesis, chromosomes, Mitosis, Meiosis, histones

577 followers612 following86 posts

Pinned

Excited to share this preprint!! with @brandonscooper.bsky.social and Bill Sullivan We tested whether endosymbiotic Wolbachia can alter host gene expression through chromatin modifications that persist from spermatogenesis to adulthood.

bioRxivpreprint@biorxivpreprint.bsky.social

Wolbachia-induced cytoplasmic incompatibility produces heritable chromatin modifications that suppress position-effect variegation https://www.biorxiv.org/content/10.64898/2026.06.12.731975v1

Hunter Hill reposted

40 years ago today, the BDSC made its 1st shipment. To celebrate, Trudy Kaufman, who packed the 1st shipment, boxed up the same kinds of flies for John Roote at Cambridge, who placed the 1st order. Watch for pics of the arrival next week. We’ve shipped 4,882,378 vials total. That’s a lot of flies!

Hunter Hill reposted

Replying to @ching-hochang.bsky.social

Thrilled to share that our paper is finally out in Science Advances! 🔗 www.science.org/doi/10.1126/... TL;DR: A Drosophila protamine acts as shields resolving conflict between X and Y chromosomes. Disruption unleashes meiotic drive that kills X-bearing sperm and skews progeny sex ratios. 🪰🧬ᯡ

science.orgRapid protamine evolution suppresses meiotic drive in DrosophilaMany animal species replace histones with protamines during spermatogenesis. Although essential for sperm function, protamines evolve rapidly for reasons that remain unknown. Using in vivo gene replac...

Hunter Hill reposted

How long does DNA damage last? @aaronquinlan.bsky.social and I found evidence that lesions are transmitted from parent (P0) to offspring (F1) in C. elegans. If they segregate unrepaired for multiple cell divisions, lesions generate multi-allelism in the F1 germline. www.biorxiv.org/content/10.6...

biorxiv.orgInherited DNA damage generates multi-allelic mutations in C. elegansExogenous and endogenous mutagens generate a wide variety of DNA lesions, including bulky adducts, chemical modifications, and single- or double-stranded breaks. A phenomenon called “lesion segregation,” in which lesions evade repair and persist for multiple cell divisions, has recently been documented in tumors and healthy somatic tissues from mice and humans, respectively. Persistent lesions can generate multi-allelic variants (MAVs) by serving as templates for multiple rounds of error-prone replication. By reanalyzing data from a large C. elegans mutagenesis experiment, we observed robust evidence for MAVs at a small fraction (∼0.2%) of mutated sites in the offspring of strains treated with alkylating agents. Because these sequencing data were derived from the progeny of a single F1 animal — itself the offspring of a mutagenized P0 — all mutations should be biallelic. The presence of multi-allelic variation implies that some DNA lesions are transmitted to the F1 zygote, evade repair, and are repeatedly bypassed by error-prone polymerases during embryogenesis. We suspect that many more lesions are inherited than is suggested by MAV prevalence, and that a large fraction of biallelic mutations are also caused by inherited lesions. Our results demonstrate that DNA lesions serve as durable, transgenerational templates for mutagenesis in C. elegans . We speculate that lesion segregation in the early embryo may be a source of mosaicism and genetic diversity in humans, as well. ### Competing Interest Statement The authors have declared no competing interest. National Institutes of Health, https://ror.org/01cwqze88, R01HG012252

Hunter Hill reposted

Super proud and excited about this work, led masterfully by Peiwei Chen! A fun and fruitful collaboration with department colleagues Andy Clark & Alexei Aravin. After 30 yrs of studying transposons, this is one of the very first times I see them jump in real time in their natural host! Hurrah! 🥳

Peiwei Chen@peiwei-chen.bsky.social

How do transposons jump when they’re released from host control? I babysat two chromosomes for 2 years, making sure they are ok without most piRNAs. Here’s what we found & excited to share my 1st postdoc paper: “piRNA loss unleashes episodic transposition bursts” www.biorxiv.org/content/10.6...

Hunter Hill reposted

So grateful for the new Kathy Matthews Endowment for the Bloomington Drosophila Stock Center. A wonderful tribute by Kathy's husband, Lawrence Washington, that will help preserve Kathy's legacy and support the fly community for years to come. biology.indiana.edu/news-events/...

biology.indiana.eduMajor gift to establish endowment for IU Drosophila Stock CenterIU Biology news: The IU Stock Center maintains thousands of documented, living genetic strains of Drosophila melanogaster, a small fruit fly that has served as one of science’s most powerful tools for...

Excited to share this preprint!! with @brandonscooper.bsky.social and Bill Sullivan We tested whether endosymbiotic Wolbachia can alter host gene expression through chromatin modifications that persist from spermatogenesis to adulthood.

bioRxivpreprint@biorxivpreprint.bsky.social

Wolbachia-induced cytoplasmic incompatibility produces heritable chromatin modifications that suppress position-effect variegation https://www.biorxiv.org/content/10.64898/2026.06.12.731975v1

We used classical genetics (X-inversion, PEV, white mutants) and machine-learning-based image analysis (ilastik, pixel classification) to quantify pigments in the fly eye. Showing that heterochromatin silencing decreases when fathers have Wolbachia in an incompatible (CI) cross!

Interestingly, this chromatin modification is not reverted when mothers also carry Wolbachia (Rescue), nor does it significantly impact chromosome polytenization in the salivary glands. Grateful to work on such a fun project in beautiful Missoula, Montana!

Hunter Hill reposted

The @hypothesisfund.bsky.social has awarded a prestigious seed grant to @uofubiology.bsky.social professor Talia Karasov, who researches the microbial weapons bacteria inflict on each other in an evolutionary arms race that might hold the keys to addressing the threat of antibiotic resistance.

attheu.utah.eduU biologist wins seed grant to deepen research into tailocins, the weapons microbes use on each other - @theUHypothesis Fund supports early-stage innovative research that aims to improve the health of people and the planet.

Hunter Hill reposted

If you're afraid to ask someone for a recommendation, please don't be. It's part of the job of being a mentor, editor, teacher, advisor, former boss, etc. to write recommendations or politely decline. (I wish I could go back in time and tell my former self this.)

Hunter Hill reposted

Hunter Hill reposted

Hunter Hill reposted

OMG--read this thread. Remarkable clever use of a trick to visualize plasmid competition that reveals key insights into evolution!!!! 🧪

Michael Baym@baym.lol

Hot off the press! Our latest paper led by @fernpizza.bsky.social, understanding how plasmids evolve inside cells. These small, self-replicating DNA circles live inside bacteria and carry antibiotic resistance genes, but also compete with one another to replicate. 1/ www.science.org/doi/10.1126/...

Hunter Hill reposted

Hunter Hill reposted

Introducing the 1,000 Flower Collection 🧬🌹 I’m creating 1,000 genetically designed flowers each crafted with new colors, patterns, and shapes. Here’s how I’m making it happen… and how you can join me on this journey 🧵(1/7)

Hunter Hill reposted

Replying to @nickdesnoyer.bsky.social

To promote the collection, I’ve launched a designer clothing line where synthetic biology meets aesthetics. I will give out 100 free limited edition shirts to the first who retweet and order with their handle in the name! Available here → nickdesnoyer.com 🧵(6/7)

Hunter Hill reposted

NEW: In an unprecedented move, the NIH will soon disinvite dozens of scientists about to take positions on advisory councils that make final decisions on grant funding. NIH staff were told to select others aligned with the Trump administration and told to expect placements by political appointees.

nature.comExclusive: NIH to dismiss dozens of grant reviewers to align with Trump prioritiesThe move would undo years of work, leaving advisory councils understaffed, and without the full expertise needed for reviews.

Hunter Hill reposted

I don’t think anyone is prepared for what they just did w/ ICE. This is not a simple budget increase. It is an explosion - making ICE bigger than the FBI, US Bureau of Prisons, DEA,& others combined. It is setting up to make what’s happening now look like child’s play. And people are disappearing.

Hunter Hill reposted

Hunter Hill reposted

Replying to @cdelawalla.bsky.social

Do not give them an INCH! It's not: Well, maybe there are some areas where DEI has become too much a focus. It's: FREE COUNTRIES DON'T SEND OUT BANNED WORDS LISTS TO THEIR SCIENTISTS It's not: Well, science isn't perfect... It's: FREE COUNTRIES DO NOT HAVE SCIENCE COMMISSARS

Hunter Hill reposted

For all the scientists who voted for Trump (and I know many of you), I hope the war on DEI was worth it.

Sam Stein@samsteindc.bsky.social

Bernie Sanders' office has put out a report this morning on Trump's NIH cuts: "Trump officials effectively cut $2.7 billion in [NIH] funding in the first three months of 2025 – including a 31 percent cut to cancer research through March, compared to the same timeframe last year."

Hunter Hill reposted

If you're wondering why there's been so much insistence lately that COVID-19 was a lab leak, here's why: it is going to be an example for why all biomedical research & public health work should be defunded. No evidence supports a lab leak, but it's used to justify cutting NIH's budget by 40%.

Max Kozlov@maxkozlov.bsky.social

BREAKING: Reports that Trump would try to cut NIH's budget by 40% have come true. The request released moments ago would: - Cut $18 BILLION to NIH's $47b budget - Eliminate NIMHD, NCCIH, FIC - Collapse ICs into five 'focus areas' There's also a long screed about NIH's deficiencies.

Hunter Hill reposted

💥🥳 At long last, our latest paper is out! Gag proteins of endogenous retroviruses are required for zebrafish development www.pnas.org/doi/10.1073/... Led heroically by Sylvia Chang & @jonowells.bsky.social A study which has changed the way I think of #transposons! No less! 🧵 1/n

pnas.orgGag proteins encoded by endogenous retroviruses are required for zebrafish development | PNASTransposable elements (TEs) make up the bulk of eukaryotic genomes and examples abound of TE-derived sequences repurposed for organismal function. ...

Hunter Hill reposted

You may be fearing your 401k is no longer enough for you to retire. But with all the cuts to NIH and Medicare you also won't live as long. So the policies are integrated.

Hunter Hill reposted

If you have been affected by the fires in LA, or are concerned about your ability to keep precious Drosophila strains going during the latest funding crisis, we will host your strains as a backup. Please email me. Please amplify. If you are also able to host fly strains, add your name as well.

Hunter Hill reposted

Per an NIH source: “Discussions with colleagues have suggested that if the universities all come together and raise hell about the delays to funding caused by not holding meetings, that might move the needle. From every state. There are well-funded universities in red states that will be impacted.”

Hunter Hill reposted

"our commitment to an enterprise rooted in respect and inclusion is appropriate and necessary." "creativity and innovation in the merchandise and services that we offer," - Costco Board. 98% of Costco shareholders agreed with the board.👍🏿 Segregationists denied.

axios.comCostco shareholders vote against anti-DEI proposalMore than 98% of Costco shareholders voted down an anti-DEI proposal Thursday at the company's annual shareholders meeting.