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Doc Edge

@docedge.bsky.social

Assistant professor in quantitative and computational biology @USC. Genetics, evolution, statistics. https://edgepopgen.github.io/edgelab/

3,502 Followers  |  965 Following  |  57 Posts  |  Joined: 14.09.2023  |  2.0199

Latest posts by docedge.bsky.social on Bluesky

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Intracellular competition shapes plasmid population dynamics From populations of multicellular organisms to selfish genetic elements, conflicts between levels of biological organization are central to evolution. Plasmids are extrachromosomal, self-replicating g...

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/...

20.11.2025 21:42 β€” πŸ‘ 399    πŸ” 194    πŸ’¬ 11    πŸ“Œ 17
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What James Watson got wrong about DNA - The Boston Globe The science he helped pioneer consistently undermines his view that genes determine everything about us.

"What James Watson got wrong about DNA"

By the great Sohini Ramachandran (@sramach.bsky.social) and your boy for The Boston Globe (@bostonglobe.com).

www.bostonglobe.com/2025/11/14/o...

14.11.2025 16:50 β€” πŸ‘ 137    πŸ” 61    πŸ’¬ 4    πŸ“Œ 11

This joke drives >55

13.11.2025 02:40 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

An empirical approach to evaluating the prevalence of long-lived balancing selection in humans--and important limitations. Work by @hannahmm.bsky.social

11.11.2025 19:14 β€” πŸ‘ 62    πŸ” 35    πŸ’¬ 0    πŸ“Œ 0

Excited to share our latest work on the factors that determine what genes we find (and don't find!) in GWAS and burden tests.

We describe a critical concept that we call *specificity*.

Led by Jeff Spence and Hakhamanesh Mostafavi:

07.11.2025 04:08 β€” πŸ‘ 82    πŸ” 26    πŸ’¬ 2    πŸ“Œ 0

It was charming, but it would have been even more fun to watch all the dads getting agitated had the dodgers fallen behind and lost the series

01.11.2025 04:16 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
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Simple scaling laws control the genetic architectures of human complex traits Genome-wide association studies have revealed that the genetic architectures of complex traits vary widely. This study shows that differences in architectures of highly polygenic traits arise mainly f...

Why do complex traits differ in their genetic architecture?
In our new PLOS Biology paper, we will try to convince you that two simple scaling laws drive differences in the number, effect sizes and frequencies of causal variants affecting complex traits.

Thread:
journals.plos.org/plosbiology/...

24.10.2025 01:50 β€” πŸ‘ 88    πŸ” 38    πŸ’¬ 1    πŸ“Œ 3

www.youtube.com/watch?v=L-4v...

16.10.2025 23:46 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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USC rejects Trump education compact aimed at shifting the university to the right USC interim President Beong-Soo Kim said in a statement that he had sent a letter to the U.S. Department of Education turning down the Trump offer.

WOOHOO USC "respectfully declines" the compact as well
cc @aaup.org
www.latimes.com/california/s...

16.10.2025 20:44 β€” πŸ‘ 79    πŸ” 20    πŸ’¬ 1    πŸ“Œ 1
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Distinct haplotypes and reversed dominance at a single-gene balanced polymorphism controlling heterodichogamy in two genera of wingnuts In most species within the walnut family, two genetically determined morphs alternate between male and female flowering phases in time. Groh et al. identify a distinct locus for this dimorphism in two...

Sharing our new paper, "Distinct haplotypes and reversed dominance at a single-gene balanced polymorphism controlling heterodichogamy in two genera of wingnuts". Genomics & evolution of a mating type system involving two morphs with alternating sexes in walnut relatives www.cell.com/current-biol...

16.10.2025 15:43 β€” πŸ‘ 37    πŸ” 15    πŸ’¬ 0    πŸ“Œ 1
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Distinct haplotypes and reversed dominance at a single-gene balanced polymorphism controlling heterodichogamy in two genera of wingnuts In the angiosperm mating system of heterodichogamy, two hermaphroditic morphs temporally alternate between male and female flowering phases, promoting…

Congratulations to @jeffgroh.bsky.social on the publication of his paper on an ancient balanced polymorphisms controlling heterodichogamy in two genera of wingnuts. The paper shows the putative turnover & reversal of dominance of a mating type polymorphism
www.sciencedirect.com/science/arti...

16.10.2025 15:42 β€” πŸ‘ 64    πŸ” 32    πŸ’¬ 2    πŸ“Œ 0

Just skimmed the title---the two genera of wingnuts are you and @jeffgroh.bsky.social?

16.10.2025 15:58 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

We're excited to be recruiting an NIH funded postdoc to work in the Coop lab at UC Davis. We're specifically interested in candidates who are want to work at the intersection of human genetics, GWAS, and population genetics modeling. Please RT

15.10.2025 15:53 β€” πŸ‘ 145    πŸ” 172    πŸ’¬ 1    πŸ“Œ 4

The "You gotta keep 'em separated" line in "Come Out and Play" was inspired by his bench work (for real) www.facebook.com/watch/?v=113...

15.10.2025 13:51 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

This is a great opportunity!

15.10.2025 13:48 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

I'm recruiting a postdoc for my group (based in beautiful Eugene, OR). Please get in touch if you're interested, esp if you'd like to chat at #ASHG25!

15.10.2025 12:52 β€” πŸ‘ 40    πŸ” 42    πŸ’¬ 0    πŸ“Œ 1
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Collateral mutagenesis funnels multiple sources of DNA damage into a ubiquitous mutational signature Mutations reflect the net effects of myriad types of damage, replication errors, and repair mechanisms, and thus are expected to differ across cell types with distinct exposures to mutagens, division ...

In these dark times, it comes as a rare pleasure to highlight @natanaels.bsky.social ‬ & @marcdemanuel.bsky.social's work on germline and somatic mutations in humans. 1/n
www.biorxiv.org/cgi/content/...

02.09.2025 11:44 β€” πŸ‘ 107    πŸ” 46    πŸ’¬ 5    πŸ“Œ 2

For the pros, they teach "Another One Bites the Dust"

(wife is in healthcare)

12.08.2025 23:27 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Bittersweet to be leaving @docedge.bsky.social after a wonderful postdoc, but excited to share that I'm joining @uoregon.bsky.social next month as an Assistant Professor in the Department of Data Science.

06.08.2025 17:18 β€” πŸ‘ 146    πŸ” 28    πŸ’¬ 21    πŸ“Œ 4
Federal investment in UC research Federal funds are the university’s single most important source of support for research, accounting for more than half of UC’s total research awards.

Many of California’s leading industries grew from UC research, including biotechnology, computing, semiconductors, telecommunications and
agriculture.

Providing health care at UC University of California Health (UC Health) is one of the nation’s largest public academic health systems, serving
as a critical part of the California safety net.

UC trains approximately 36% of the medical residents in California

Federal investment in UC research Federal funds are the university’s single most important source of support for research, accounting for more than half of UC’s total research awards. Many of California’s leading industries grew from UC research, including biotechnology, computing, semiconductors, telecommunications and agriculture. Providing health care at UC University of California Health (UC Health) is one of the nation’s largest public academic health systems, serving as a critical part of the California safety net. UC trains approximately 36% of the medical residents in California

The university of California is a powerhouse of innovation, healthcare, and social mobility for California and the US.

07.06.2025 00:03 β€” πŸ‘ 338    πŸ” 136    πŸ’¬ 6    πŸ“Œ 4

I'm excited to announce that I'll be starting a lab at UCSF in the @ihgatucsf.bsky.social and @ucsf-epibiostat.bsky.social in July.

We'll work at the intersection of statistical genetics, population genetics, and machine learning.

02.06.2025 17:45 β€” πŸ‘ 145    πŸ” 24    πŸ’¬ 32    πŸ“Œ 1
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Jennifer Blanc and @jeremyjberg.bsky.social use theory and simulations to study the process of testing for an association between polygenic scores and axes of ancestry variation when confounding factors are present.

Learn more about their findings in #GENETICS:Β buff.ly/EmKpXyP

03.06.2025 22:02 β€” πŸ‘ 17    πŸ” 10    πŸ’¬ 0    πŸ“Œ 0
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Welcome to the Modeling and Theory in Population Biology workshop!

We’re excited to have you join us at NITMB for this week’s event. More information on the workshop and today’s schedule are available at www.nitmb.org/modeling-and...

02.06.2025 13:21 β€” πŸ‘ 4    πŸ” 3    πŸ’¬ 0    πŸ“Œ 0

I have loved this song with my whole heart since first hearing it, almost 20 years ago now

27.05.2025 23:19 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Harvard has just under 6,800 foreign students enrolled. Every one of them would have to give up their dreams of an education in the US or transfer elsewhere, if Noem's attack on Harvard is upheld.

None of them have done anything wrong, they're just collateral damage to Trump.

22.05.2025 18:21 β€” πŸ‘ 716    πŸ” 170    πŸ’¬ 29    πŸ“Œ 6
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Excited to share our work on using pathway-specific polygenic scores to discover gene-environment interactions www.medrxiv.org/content/10.1...

22.05.2025 15:09 β€” πŸ‘ 40    πŸ” 12    πŸ’¬ 0    πŸ“Œ 0

Absolutely awful. I'm so sorry

14.05.2025 01:42 β€” πŸ‘ 4    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
A screenshot of the termination notice showing "Outstanding Investigator Grants"

A screenshot of the termination notice showing "Outstanding Investigator Grants"

A screenshot of the termination notice with "This award is terminated effective the date of this award, due to unsafe antisemitic actions that suggest the institution lacks concern for the safety and wellbeing of Jewish students." highlighted

A screenshot of the termination notice with "This award is terminated effective the date of this award, due to unsafe antisemitic actions that suggest the institution lacks concern for the safety and wellbeing of Jewish students." highlighted

Yesterday, the NIH R35 β€œOutstanding Investigator” grant to fund scientists in my lab studying antibiotic resistance was terminated for reasons not related to the content of the science, or any actions taken by me or members of my lab

13.05.2025 23:37 β€” πŸ‘ 881    πŸ” 581    πŸ’¬ 144    πŸ“Œ 73

Amidst all the terrible and terrifying news, so lovely to hear of
@jkpritch.bsky.social's election to the National Academy of Sciences. Congratulations!

29.04.2025 20:52 β€” πŸ‘ 86    πŸ” 15    πŸ’¬ 3    πŸ“Œ 0
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In population #GENETICS, Q-ST and F-ST calculations help compare the amount of trait differentiation on one or more traits in genome-wide genetic variants. Using simulations Liu and @docedge.bsky.social, show the effect of various choices made while computing Q-ST.

Read more: buff.ly/OwrU9oB

29.04.2025 18:03 β€” πŸ‘ 27    πŸ” 8    πŸ’¬ 0    πŸ“Œ 2

@docedge is following 20 prominent accounts