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sophiejwalton.bsky.social
Stanford Biophysics PhD Student with Dmitri Petrov and Ben Good. evolution, ecology, genomics, microbiomes, biophysics :) she/her https://sophiejwalton.github.io
59 posts 1,049 followers 399 following
Prolific Poster

Katherine is an amazing writer and teacher!

🔊 ¡Llamado a pensar la evolución desde el sur! Invitamos a estudiantes de maestría y doctorado en biología evolutiva de Sudamérica a postularse a EvoSur. 🧬 Un espacio para intercambiar ideas, debatir evolución y tejer redes científicas con todas las voces, todas: sites.google.com/view/evosur2...

Get the word out far and wide. New opportunity from the Simons Foundation in the Eco-Evo space. 2026 Simons Graduate Fellowship in Ecology and Evolution Awards, due July 31, 2025, only for incoming PhD students who plan to start their PhDs in Fall 2026. www.simonsfoundation.org/grant/simons...

Yes! @ksxue.bsky.social is going to guide through writing #McClintockLetters, so we can speak to the public about our work and what is going on with fed funding! Workshop sign up here: tinyURL.com/McClintockLettersXue More info + sign up to write a letter: tinyURL.com/McClintockLetters

I have an opportunity to hire a staff scientist for my lab. Looking for someone with outstanding skillset in ML/statistics, genomics applications; interest in mentoring, strong publication record, PD experience required. Email CV to me+cc my assistant (see 'contact' on my website). Ad to follow.

In my undergrad research, HMMER allowed us identify that a seemingly obscure C. elegans heat shock response regulator is actually a distant homolog of the human AF4/FMR2 family proteins. It's incredibly sad and alarming to see this resource be defunded. academic.oup.com/genetics/art...

(1/7) Very excited to share my first PhD preprint on the interactions of two of my favorite mobile genetic elements: phages and group II introns! www.biorxiv.org/content/10.1...

Scientists, reach out to your local communities about the importance of funding science! Write an op-ed to your local newspaper as part of the #McClintockLetters. Please spread the word and sign up! DM me if you're interested and need help getting started. I'm trained as a writer and happy to help.

Scientists--Share your story! We need the nation to know what is at stake if the NIH is gutted. It's therapeutic and takes just a few minutes

Very excited about this work by @mrazo.bsky.social in collaboration with www.madhavmani.com bsky.app/profile/mraz... I am so lucky to be able to collaborate with such brilliant people! Learned a lot. This is our first foray into ML approaches and I am quite taken with their power 1/n

Thread with an email being sent to @asn-amnat.bsky.social @sse-evolution.bsky.social @systbiol.bsky.social members today calling for a Tri-society week of action for NSF: Dear members: The tri-societies (ASN, SSE,SSB) are running a ‘Week of Action for NSF’. Your engagement is crucial.

1/9 Excited to share the preprint for the second half of my PhD with @mollyschumer.bsky.social: Connecting human environmental impacts to hybridization in swordtail fish through genomics, GIS, water chemistry, and histology. Thread below! #SciSky www.biorxiv.org/content/10.1...

Thrilled to share that our manuscript on strain-level gut microbiome variation across diverse populations and human phenotypes is out today in @cellpress.bsky.social Curious about how strain diversity relates to human traits? Follow this thread! 🌍 (1/n) www.sciencedirect.com/science/arti...

Excited to share the first manuscript from my PhD in which we leveraged ultra-long Nanopore sequencing, D. melanogaster inbred lines, and a ton of manual validation to investigate the effects of long-read length on population-level structural variant (SV) calling accuracy! doi.org/10.1101/2025...

Trump is gutting the DOE which means that the NAWI consortium will suffer. This consortium does critical research to ensure that our water remains clean and our treatment processes are sustainable. We are all about to have poopy water... www.nawihub.org

www.science.org/content/arti... @alyulina.github.io "There’s a quiet strength among international students, but the constant uncertainty over losing our legal status at any moment—without notice, reason, or due process—weighs heavily on us"

With @hybridzones.bsky.social & @jenncoughlan.bsky.social, we have been working on an update to Daven Presgraves' influential 2010 review on hybrid incompatibilities (shorturl.at/cJndf). The preprint is available here (shorturl.at/DTC48) with an updated table of almost 100 incompatibilities!

Low-dimensional genotype-fitness mapping across divergent environments suggests a limiting functions model of fitness https://www.biorxiv.org/content/10.1101/2025.04.05.647371v1

www.sfchronicle.com/bayarea/arti...

#KillTheCuts at Stanford! best speeches imo were from lecturers, who play a vital, but often overlooked, role in academia.

Know any soon to graduate or recently graduated undergrads interested in a full year, paid postbac research position in microbiome sciences? Have them join our zoom Q&A session on Friday, April 11, 11:30am-12:30pm PST. More info here: sites.google.com/berkeley.edu...

I would say I basically called it, at least in terms of the practical effects if not the specific procedure. SCOTUS gets to tell Trump he can deport whoever he wants, but there has to be at least an illusion of process, which slightly insulates SCOTUS from the blood on their hands.

Grad student applicants from the US: University of British Columbia (Vancouver, Canada) has re-opened applications for Master's and PhD programs (e.g., biomed engineering, genetics). Info sessions Apr. 15th w/ current US students: www.grad.ubc.ca/us-applicant... Stable, awesome environment!!

Our commentary on the elegant in vitro microbiome coalescence experiments from @goldmandoran.bsky.social @ksxue.bsky.social et al is out. It was a pleasure to write about one of my favorite microbiome papers of the last few years. www.pnas.org/doi/10.1073/...

The number of known student visas revoked at the University of California has moved up again. It's now at 51+ revocations.

NEW: The Trump administration swiftly cancelled dozens of international student visas Friday at Stanford and University of California campuses, including UCLA, UC Berkeley and UC San Diego. One UC San Diego student was taken into custody at the border for deportation: www.latimes.com/california/s...

Preprint alert: "Mating signal energy gradient mediates gene flow in the early stage of avian speciation". We studied 109 pairs of hybridizing bird species & unveiled some hidden roles of their magical mating rituals. #birds #evolution

Adaptive Increase of Amylase Gene Copy Number in Peruvians Driven by Potato-rich Diets https://www.biorxiv.org/content/10.1101/2025.03.25.644684v1

Hi y'all! Know any recent or upcoming college graduates who are interested in microbiology and looking for (full-time! paid!) research experience? Please point them towards RaMP! Darian Doakes and I will be co-mentors for an MGE project that I think is going to be really cool. Apps+recs due 5/25

good leaders delegate to those with more expertise than them. this is insane and terrifying. and obviously not efficient at all...

More awfulness from the current administration: www.science.org/content/arti...

Reproductive barriers can evolve despite gene flow. A combination of genomics and behavioural assays shows two mitonuclear incompatibilities originated via ancient hybridization that underlie hybrid inviability in a pair of closely related swordtail fishes www.nature.com/articles/s41...

We are looking to contract a technician for work on our historic bear project. Unfortunately, we are restricted to US citizens or permanent residents for this position. Please share and see further details here: evol.mcmaster.ca/brian/evoldi...

My lab at NYU is hiring a postdoc in microbial ecology and evolution! We are looking for someone interested in both wet and dry lab techniques, including experimental evolution, genome editing, bioinformatics, and some modeling. Apply here: apply.interfolio.com/164683

Microbial ecologists, do you ever want to quantify the stability of a community over time, or the amount of spatial heterogeneity across sites? Check out FAVA, developed by @maikemorrison.bsky.social. With FAVA, you can quantify compositional variability across many microbiome samples.

1/ Hey y'all, I'm excited to share my latest paper, which is out now in PNAS! We introduce FAVA, a statistical framework to measure compositional variability across microbiome samples. If you want to measure variability across a stacked bar plot, FAVA is for you! Paper: doi.org/10.1073/pnas...

What happens if you introduce 🦠vs 🦠🦠🦠 into a microbial community? Are larger microbial populations more likely to establish? Check out new work led by @goldmandoran.bsky.social that used experiments and theory to dive deep into this simple question. ⬇️ www.pnas.org/doi/10.1073/...

I’m thrilled to share my first ever publication, now published in PNAS! www.pnas.org/doi/10.1073/... With mentorship from the amazing @ksxue.bsky.social, I looked at how the outcomes of species introductions to microbial communities are influenced by the number of introduced microbes.

SGWU at @standupforscience.bsky.social . Unions are incredibly important for this fight, so it was very inspiring and exciting to hear folks from UAW speak at the SF rally. Join your unions :)

In his confirmation hearing now, Bhattacharya was asked by Senator Cassidy whether he thinks there's a need for NIH to study the myth that vaccines cause autism. Bhattacharya says he doesn't believe there's a link, but leaves door open to wasting taxpayer money & scientists' time relitigating this.

I made easy-to-print posters for the @standupforscience.bsky.social march on March 7th. Today I added two posters specifically for @ucsanfrancisco.bsky.social and @sfstatebio.bsky.social @sfsupinc.bsky.social (I can't find all the handles I want) abetterscientist.wordpress.com/2025/03/01/f...

I made free to print posters for the @standupforscience.bsky.social protest Please share! #standupforscience abetterscientist.wordpress.com/2025/03/01/f...