Graham Coop
@gcbias.bsky.social
Population and evolutionary genetics @UCDavis. Posts, grammar, & spelling are my views only. He/him. #OA popgen book https://github.com/cooplab/popgen-notes/releases
Reposted by Graham Coop
🚨New paper from our team on our favorite sex locus ANTSR! 🚨New collaboration with @hugodarras.bsky.social , led by our talented @chuanxinyu.bsky.social, we show that ants, bees and stinging wasps share an ancient sex locus, a suspicion we had when we first found the locus in the Argentine ants!
New work from @miyapan.bsky.social and our team, bringing ant, bee, and wasp labs together. @chuanxinyu.bsky.social shows that the ANTSR locus we discovered in ants has determined sex for 150+ My across bees and stinging wasps 🐜🐝, despite virtually no sequence conservation 😮 doi.org/10.1073/pnas...
January 6, 2026 at 5:18 AM
🚨New paper from our team on our favorite sex locus ANTSR! 🚨New collaboration with @hugodarras.bsky.social , led by our talented @chuanxinyu.bsky.social, we show that ants, bees and stinging wasps share an ancient sex locus, a suspicion we had when we first found the locus in the Argentine ants!
Reposted by Graham Coop
With today's announcement by HHS proposing changes to the US childhood vaccine schedules, it's more important than ever to be pushing states and pediatricians to commit to following data-driven vaccine schedules like the ones from @ameracadpeds.bsky.social
downloads.aap.org/AAP/PDF/AAP-...
downloads.aap.org/AAP/PDF/AAP-...
January 6, 2026 at 12:26 AM
With today's announcement by HHS proposing changes to the US childhood vaccine schedules, it's more important than ever to be pushing states and pediatricians to commit to following data-driven vaccine schedules like the ones from @ameracadpeds.bsky.social
downloads.aap.org/AAP/PDF/AAP-...
downloads.aap.org/AAP/PDF/AAP-...
Reposted by Graham Coop
New in @nytimes.com on how some research on human origins and genetics are being cut from federal science programs. @carlzimmer.com interviews Brenna Henn, who has done much to illuminate the genetic variation and history of southern African peoples.
www.nytimes.com/2026/01/02/s...
www.nytimes.com/2026/01/02/s...
She Wanted to Improve Genetic Medicine
www.nytimes.com
January 5, 2026 at 8:41 PM
New in @nytimes.com on how some research on human origins and genetics are being cut from federal science programs. @carlzimmer.com interviews Brenna Henn, who has done much to illuminate the genetic variation and history of southern African peoples.
www.nytimes.com/2026/01/02/s...
www.nytimes.com/2026/01/02/s...
Reposted by Graham Coop
Together with @ronghuizhu.bsky.social, we are thrilled to present our new perturb-seq study of 22M primary CD4+ T cells, across donors and timepoints – the result of a decade-long collaboration between the Marson @marsonlab.bsky.social and Pritchard @jkpritch.bsky.social labs 🧵 tinyurl.com/gwt2025
Genome-scale perturb-seq in primary human CD4+ T cells maps context-specific regulators of T cell programs and human immune traits
Gene regulatory networks encode the fundamental logic of cellular functions, but systematic network mapping remains challenging, especially in cell states relevant to human biology and disease. Here, ...
tinyurl.com
January 5, 2026 at 6:42 PM
Together with @ronghuizhu.bsky.social, we are thrilled to present our new perturb-seq study of 22M primary CD4+ T cells, across donors and timepoints – the result of a decade-long collaboration between the Marson @marsonlab.bsky.social and Pritchard @jkpritch.bsky.social labs 🧵 tinyurl.com/gwt2025
"Record number of 2,100 Chinook salmon have returned to spawn in Putah Creek in Solano County [CA]". Creek that runs through Davis.
www.kcra.com/article/reco...
www.kcra.com/article/reco...
Record salmon run in Putah Creek, Solano County
A record 2,100 Chinook salmon have returned to spawn in Putah Creek in Solano County due to collaborative conservation efforts and favorable environmental conditions.
www.kcra.com
January 5, 2026 at 7:58 PM
"Record number of 2,100 Chinook salmon have returned to spawn in Putah Creek in Solano County [CA]". Creek that runs through Davis.
www.kcra.com/article/reco...
www.kcra.com/article/reco...
Reposted by Graham Coop
Preprint up now! With @ferrisifolius.bsky.social, we found positive selection on leaf shape plasticity across the altitudinal range of the cutleaf monkeyflower. This experiment was a HUGE personal undertaking. If you give it a read, I’d love to hear your thoughts!
www.biorxiv.org/content/10.6...
www.biorxiv.org/content/10.6...
Phenotypic plasticity is broadly adaptive across an elevation gradient in the Cutleaf Monkeyflower
Phenotypic plasticity is a key mechanism by which organisms can cope with environmental heterogeneity, but its evolutionary consequences depend on how plastic responses align with the broader adaptive...
www.biorxiv.org
December 22, 2025 at 2:59 PM
Preprint up now! With @ferrisifolius.bsky.social, we found positive selection on leaf shape plasticity across the altitudinal range of the cutleaf monkeyflower. This experiment was a HUGE personal undertaking. If you give it a read, I’d love to hear your thoughts!
www.biorxiv.org/content/10.6...
www.biorxiv.org/content/10.6...
Reposted by Graham Coop
Come and join me and my colleagues at the Department of Biology, #LundUniversity in #sweden! We have am open position as Senior Lecturer/Associate Professor in Biodiversity.
Apply here no later than February 11 2026:
https://lu.varbi.com/en/what:job/jobID:848749/type:job/where:4/apply:1
Apply here no later than February 11 2026:
https://lu.varbi.com/en/what:job/jobID:848749/type:job/where:4/apply:1
Senior Lecturer/Associate Professor in Biodiversity
The Department of Biology was established in 2010 through the merger of the Departments of Ecology, Cell and Organism Biology, Biological Undergraduate Education, and the Biological Museums. The depar
lu.varbi.com
December 20, 2025 at 3:58 PM
Come and join me and my colleagues at the Department of Biology, #LundUniversity in #sweden! We have am open position as Senior Lecturer/Associate Professor in Biodiversity.
Apply here no later than February 11 2026:
https://lu.varbi.com/en/what:job/jobID:848749/type:job/where:4/apply:1
Apply here no later than February 11 2026:
https://lu.varbi.com/en/what:job/jobID:848749/type:job/where:4/apply:1
Reposted by Graham Coop
One of the things from 2025 that gives me hope for the future is the many people who protested in the US.
The two biggest protests ever were in the summer and fall of 2025. 7 of the biggest 10 were during Trump 1 and 2.
en.wikipedia.org/wiki/List_of...
The two biggest protests ever were in the summer and fall of 2025. 7 of the biggest 10 were during Trump 1 and 2.
en.wikipedia.org/wiki/List_of...
January 2, 2026 at 8:40 PM
One of the things from 2025 that gives me hope for the future is the many people who protested in the US.
The two biggest protests ever were in the summer and fall of 2025. 7 of the biggest 10 were during Trump 1 and 2.
en.wikipedia.org/wiki/List_of...
The two biggest protests ever were in the summer and fall of 2025. 7 of the biggest 10 were during Trump 1 and 2.
en.wikipedia.org/wiki/List_of...
Reposted by Graham Coop
Interesting new research showing how even slight fitness differences in host shifting can constrain what could be a generalist ant symbiont to one particular host species.
Enforced specificity of an entrenched symbiosis
Wagner et al. uncover how the specificity of a myrmecophile rove beetle to its single
host ant species arises not from sensory specialization on host cues. Instead, constraints
on dispersal and aggres...
www.cell.com
January 2, 2026 at 4:59 PM
Interesting new research showing how even slight fitness differences in host shifting can constrain what could be a generalist ant symbiont to one particular host species.
Reposted by Graham Coop
The genetics, evolution, and maintenance of a biological rock-paper-scissors game | Science www.science.org/doi/10.1126/...
The genetics, evolution, and maintenance of a biological rock-paper-scissors game
Side-blotched lizards (Uta stansburiana) play a biological rock-paper-scissors game in which three differently colored male morphs utilize alternative mating strategies. We identified the genetic basi...
www.science.org
January 2, 2026 at 2:16 PM
The genetics, evolution, and maintenance of a biological rock-paper-scissors game | Science www.science.org/doi/10.1126/...
Slowly cooling this hot metal, just to anneal something.
Going birding at the local marsh, just to green-winged teal something
Playing the glocken, just to spiel something
January 1, 2026 at 4:53 AM
Slowly cooling this hot metal, just to anneal something.
Reposted by Graham Coop
Going birding at the local marsh, just to green-winged teal something
Playing the glocken, just to spiel something
Talking to @greenleejw.bsky.social just to eel something.
December 31, 2025 at 10:56 PM
Going birding at the local marsh, just to green-winged teal something
Reposted by Graham Coop
New preprint modeling biogeo diversification of Hawaiian Kadua 🌱🏝️🌋
w/ @ca-naturalist.bsky.social @sswiston.bsky.social @fabiology.bsky.social @phylogeny.bsky.social Warren Wagner, Bruce Baldwin, Ken Wood @ninaronsted.bsky.social @fzapata.bsky.social
biorxiv.org/content/10.64898/2025.12.16.694722
w/ @ca-naturalist.bsky.social @sswiston.bsky.social @fabiology.bsky.social @phylogeny.bsky.social Warren Wagner, Bruce Baldwin, Ken Wood @ninaronsted.bsky.social @fzapata.bsky.social
biorxiv.org/content/10.64898/2025.12.16.694722
December 31, 2025 at 8:51 PM
New preprint modeling biogeo diversification of Hawaiian Kadua 🌱🏝️🌋
w/ @ca-naturalist.bsky.social @sswiston.bsky.social @fabiology.bsky.social @phylogeny.bsky.social Warren Wagner, Bruce Baldwin, Ken Wood @ninaronsted.bsky.social @fzapata.bsky.social
biorxiv.org/content/10.64898/2025.12.16.694722
w/ @ca-naturalist.bsky.social @sswiston.bsky.social @fabiology.bsky.social @phylogeny.bsky.social Warren Wagner, Bruce Baldwin, Ken Wood @ninaronsted.bsky.social @fzapata.bsky.social
biorxiv.org/content/10.64898/2025.12.16.694722
Reposted by Graham Coop
One of the most striking birds at the local park, the Red-headed Woodpecker.
December 31, 2025 at 9:38 PM
One of the most striking birds at the local park, the Red-headed Woodpecker.
Reposted by Graham Coop
Happy that our work on the evolution of Yellowstone cyanobacteria is now published in @elife.bsky.social: doi.org/10.7554/eLif...! Did a lot of work in revision—many thanks to the anonymous reviewers for great suggestions! Also see the eLife digest for a summary: elifesciences.org/digests/9084...
Hybridization breaks species barriers in long-term coevolution of a cyanobacterial population
Analysis of hundreds of single-cell genomes from Yellowstone National Park shows bacterial species are less cohesive than previously thought.
doi.org
December 31, 2025 at 9:15 PM
Happy that our work on the evolution of Yellowstone cyanobacteria is now published in @elife.bsky.social: doi.org/10.7554/eLif...! Did a lot of work in revision—many thanks to the anonymous reviewers for great suggestions! Also see the eLife digest for a summary: elifesciences.org/digests/9084...
If at precisely 11.35am on New Years eve you start working on your slides for next year's course, as the clock chimes for new year you'll still be working on your slides.
December 31, 2025 at 7:24 PM
If at precisely 11.35am on New Years eve you start working on your slides for next year's course, as the clock chimes for new year you'll still be working on your slides.
Reposted by Graham Coop
My best photographs of 2025, a short thread.
A tobacco hornworm on one of its favorite foods, a garden tomato plant (Texas, May 2025). This one makes the cut because it is more aesthetically pleasing than I was aiming for, somehow.
A tobacco hornworm on one of its favorite foods, a garden tomato plant (Texas, May 2025). This one makes the cut because it is more aesthetically pleasing than I was aiming for, somehow.
December 31, 2025 at 5:01 PM
My best photographs of 2025, a short thread.
A tobacco hornworm on one of its favorite foods, a garden tomato plant (Texas, May 2025). This one makes the cut because it is more aesthetically pleasing than I was aiming for, somehow.
A tobacco hornworm on one of its favorite foods, a garden tomato plant (Texas, May 2025). This one makes the cut because it is more aesthetically pleasing than I was aiming for, somehow.
Reposted by Graham Coop
This is some fascist s#!t from the Immigration enforcement folks in the US.
www.washingtonpost.com/technology/2...
www.washingtonpost.com/technology/2...
December 31, 2025 at 6:11 PM
This is some fascist s#!t from the Immigration enforcement folks in the US.
www.washingtonpost.com/technology/2...
www.washingtonpost.com/technology/2...
Reposted by Graham Coop
EXCLUSIVE: @laurenweberhp.bsky.social & I have spent the last year collecting school+county-level vaccination data from across the US and found that only about 28% of counties now have herd immunity for kindergartners from measles—that leaves about 5.2mn kids unprotected.
Gift link: wapo.st/49zDc43
Gift link: wapo.st/49zDc43
U.S. vaccination rates are plunging. Look up where your school stands.
Take a look to see what the kindergarten measles vaccination rates are in your area.
wapo.st
December 31, 2025 at 2:29 PM
EXCLUSIVE: @laurenweberhp.bsky.social & I have spent the last year collecting school+county-level vaccination data from across the US and found that only about 28% of counties now have herd immunity for kindergartners from measles—that leaves about 5.2mn kids unprotected.
Gift link: wapo.st/49zDc43
Gift link: wapo.st/49zDc43
Reposted by Graham Coop
Open up this picture fully.
Then look at the surface of Mars.
Then look up to the top right.
Spot Mars' moon Phobos high in the sky.
Then notice the bright spot beside Phobos.
That's Earth.
Then look at the surface of Mars.
Then look up to the top right.
Spot Mars' moon Phobos high in the sky.
Then notice the bright spot beside Phobos.
That's Earth.
December 30, 2025 at 9:30 PM
Open up this picture fully.
Then look at the surface of Mars.
Then look up to the top right.
Spot Mars' moon Phobos high in the sky.
Then notice the bright spot beside Phobos.
That's Earth.
Then look at the surface of Mars.
Then look up to the top right.
Spot Mars' moon Phobos high in the sky.
Then notice the bright spot beside Phobos.
That's Earth.
Reposted by Graham Coop
Light holiday blogging, final part: where do plant (Latin) names come from? What do they mean?
Latin Names for Gardeners, Part 4: Four major themes for plant names
I often write articles for the newsletter of our local Botanic Garden. Recently, it’s been a 4-part series (so far) on Latin names, intended for gardeners who don’t necessarily have any background …
scientistseessquirrel.wordpress.com
December 30, 2025 at 2:29 PM
Light holiday blogging, final part: where do plant (Latin) names come from? What do they mean?
Reposted by Graham Coop
A study in Science reveals an extensive precolonial agricultural landscape in Michigan’s Upper Peninsula, suggesting Indigenous American communities cultivated maize intensively between 1000 and 1600 CE, despite a cold climate and marginal growing conditions. https://scim.ag/49voBGO
Archaeological evidence of intensive indigenous farming in Michigan’s Upper Peninsula, USA
We describe archaeological evidence of intensive ancestral Native American agriculture in the now heavily forested Upper Peninsula of Michigan. Recent LIDAR (light detection and ranging) and excavatio...
scim.ag
December 30, 2025 at 8:28 PM
A study in Science reveals an extensive precolonial agricultural landscape in Michigan’s Upper Peninsula, suggesting Indigenous American communities cultivated maize intensively between 1000 and 1600 CE, despite a cold climate and marginal growing conditions. https://scim.ag/49voBGO
Reposted by Graham Coop
As the year comes to an end, we want to congratulate all the authors for their publications in #GENETICS and #G3journal 🎉 🥂
Shoutout to these early career researchers who have recently published their work in the GSA Journals 👏
1/19🧵⬇️
Shoutout to these early career researchers who have recently published their work in the GSA Journals 👏
1/19🧵⬇️
December 30, 2025 at 2:02 PM
As the year comes to an end, we want to congratulate all the authors for their publications in #GENETICS and #G3journal 🎉 🥂
Shoutout to these early career researchers who have recently published their work in the GSA Journals 👏
1/19🧵⬇️
Shoutout to these early career researchers who have recently published their work in the GSA Journals 👏
1/19🧵⬇️
Reposted by Graham Coop
Extensive recombination, selection, and asexual blooms shapethe diversity of the dominant clade of Prochlorococcus https://www.biorxiv.org/content/10.64898/2025.12.29.696893v1
December 30, 2025 at 5:31 AM
Extensive recombination, selection, and asexual blooms shapethe diversity of the dominant clade of Prochlorococcus https://www.biorxiv.org/content/10.64898/2025.12.29.696893v1
Reposted by Graham Coop
OK, a little pie-in-the-sky goal here: Any chance we could get Law Dork 549 new subscribers — free or paid — before the new year?
That would give Law Dork 80,000 total subscribers!
If you've relied on my work this year, share this with your recommendation!
www.lawdork.com
That would give Law Dork 80,000 total subscribers!
If you've relied on my work this year, share this with your recommendation!
www.lawdork.com
December 29, 2025 at 7:27 PM
OK, a little pie-in-the-sky goal here: Any chance we could get Law Dork 549 new subscribers — free or paid — before the new year?
That would give Law Dork 80,000 total subscribers!
If you've relied on my work this year, share this with your recommendation!
www.lawdork.com
That would give Law Dork 80,000 total subscribers!
If you've relied on my work this year, share this with your recommendation!
www.lawdork.com