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Alan Rogers

@alanrogers.bsky.social

Population geneticist at U of Utah studying history and adaptative evolution in humans. Author of "The Evidence for Evolution". I also dabble in evolutionary ecology.

1,105 Followers  |  371 Following  |  55 Posts  |  Joined: 10.11.2024
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Posts by Alan Rogers (@alanrogers.bsky.social)

Graph showing history of human population size, separation, and gene flow over past 1.5 Ma.

Graph showing history of human population size, separation, and gene flow over past 1.5 Ma.

Can anyone tell me what software makes graphs like this (from Cousins, Scally, and Durbin 2025)?

18.01.2026 20:06 β€” πŸ‘ 3    πŸ” 1    πŸ’¬ 2    πŸ“Œ 0
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Welcome to Minnesota, fuckers. Also this is super disturbing because the ICE agent's assault rifle appears to fire as he falls down.

This was filmed by a friend near Chicago and Lake last night.

09.01.2026 23:09 β€” πŸ‘ 10329    πŸ” 3187    πŸ’¬ 729    πŸ“Œ 843
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BOMBSHELL: Russia Was Planning a Massive Terrorist Attack on Europe and the U.S. in 2024 Shocking new story out of The Financial Times (paywalled) that supports a BBC report from last year: Russia has been conducting a terror war against the rest of Europe for years. Assassinations, acts ...

"Trump’s National Security Strategy made one thing brutally clear and that is that the United States is no longer fully shaping its own foreign policy. The document reads like parts of it were written in Moscow and stamped in Washington." www.dailykos.com/stories/2025...

10.12.2025 17:07 β€” πŸ‘ 3    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0

I often restrict sample of loci to those with identical alleles in reference genomes of two outgroup species, chimpanzee and gorilla. But if N of species A is large, different individuals should differ in difference to B.

30.11.2025 06:56 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

@peercommunityin.bsky.social is one solution to this problem. We should all support it. #peercommunityin

28.11.2025 00:02 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Biol 5221: Human Evolutionary Genetics

Here's a link to the website of this course as hosted by the University of Utah: content.csbs.utah.edu/~rogers/tch/...

27.11.2025 20:32 β€” πŸ‘ 8    πŸ” 3    πŸ’¬ 0    πŸ“Œ 0
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GitHub - alanrogers/popgen: A course on population genetics A course on population genetics. Contribute to alanrogers/popgen development by creating an account on GitHub.

I taught (and co-taught) a course on human population genetics from 2000-2024. Having retired, I'm now making all the course materials public: github.com/alanrogers/p... #popgen #evbio

27.11.2025 19:10 β€” πŸ‘ 284    πŸ” 103    πŸ’¬ 4    πŸ“Œ 0

#popgen #evbio

08.11.2025 21:48 β€” πŸ‘ 2    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0

Maybe so. The estimated rate of M>N gene flow is lower than that in the other direction, but it would surely contribute.

07.11.2025 18:23 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

#popgen #evolgen

07.11.2025 14:43 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
Measuring the Phylogenetic Information in Proteins

How much phylogenetic information is in a small sample of proteins? Pastramanis et al answer this question and also discover a puzzle: each protein added to an analysis of modern and archaic humans increases support for a single implausible hypothesis. evolbiol.peercommunityin.org/articles/rec...

06.11.2025 19:31 β€” πŸ‘ 6    πŸ” 2    πŸ’¬ 1    πŸ“Œ 1
A post from Donald Trump reads: β€œSenator Cryin’ Chuck Schumer is demanding over One Billion Dollars in order to approve a small number of our highly qualified nominees, who should right now be helping to run our Country. This demand is egregious and unprecedented, and would be embarrassing to the Republican Party if it were accepted. It is political extortion, by any other name. Tell Schumer, who is under tremendous political pressure from within his own party, the Radical Left Lunatics, to GO TO HELL! Do not accept the offer, go home and explain to your constituents what bad people the Democrats are, and what a great job the Republicans are doing, and have done, for our Country. Have a great RECESS and, MAKE AMERICA GREAT AGAIN!!!”

A post from Donald Trump reads: β€œSenator Cryin’ Chuck Schumer is demanding over One Billion Dollars in order to approve a small number of our highly qualified nominees, who should right now be helping to run our Country. This demand is egregious and unprecedented, and would be embarrassing to the Republican Party if it were accepted. It is political extortion, by any other name. Tell Schumer, who is under tremendous political pressure from within his own party, the Radical Left Lunatics, to GO TO HELL! Do not accept the offer, go home and explain to your constituents what bad people the Democrats are, and what a great job the Republicans are doing, and have done, for our Country. Have a great RECESS and, MAKE AMERICA GREAT AGAIN!!!”

The Art of the Deal.

03.08.2025 01:03 β€” πŸ‘ 197    πŸ” 43    πŸ’¬ 67    πŸ“Œ 6

Troff came before TeX, at least in my life. But yes, it was wonderful.

28.07.2025 03:33 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Thanks. I'll look at your preprint.

21.07.2025 14:30 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Very interesting. 2 questions: 1. How large are samples from A and B? 2. Can the result be expressed in terms of a molecular clock instead of a drift clock? A drift clock is usually needed only when one doesn't know which allele is ancestral.

21.07.2025 08:28 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Over multiple generations, you need to account for changes in p_i q_i. If the initial p is near 1/2, then pq changes much less than p does, so you can ignore changes in p_i q_i over short intervals.

20.07.2025 22:01 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

In daughter population i, one generation of drift adds a random increment to allele frequency with mean 0 and variance p_i q_i/2n. These increments are independent, so the between-daughter variance would be twice this value.

20.07.2025 22:01 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

If I understand you correctly, 1/2n, where n is sample size. But why do we need 2 samples? The Fst of each sample relative to the pop is 1/2n.

20.07.2025 21:33 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
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He doesn’t remember nominating Jerome Powell.

16.07.2025 20:24 β€” πŸ‘ 12308    πŸ” 4126    πŸ’¬ 1001    πŸ“Œ 551

Fuck it, they killed him live.

16.07.2025 22:04 β€” πŸ‘ 12712    πŸ” 2891    πŸ’¬ 735    πŸ“Œ 236
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This is the consequences when we chose the wrong
direction.

13.07.2025 17:27 β€” πŸ‘ 18822    πŸ” 7913    πŸ’¬ 1713    πŸ“Œ 894
NEVER HAVE I SEEN A MORE APT NATURAL ANALOGY TO THE CURRENT MAJORITY OF THE U.S. CONGRESS.
olors
Nature
The sea squirt digests its own brain after attaching to a rock: Once it finds a permanent home, it no longer needs to think or move.

NEVER HAVE I SEEN A MORE APT NATURAL ANALOGY TO THE CURRENT MAJORITY OF THE U.S. CONGRESS. olors Nature The sea squirt digests its own brain after attaching to a rock: Once it finds a permanent home, it no longer needs to think or move.

My old lady neighbor who texts me memes all day is my new favorite person

01.07.2025 05:33 β€” πŸ‘ 122    πŸ” 35    πŸ’¬ 3    πŸ“Œ 3
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He wasn’t even adjusting anything he was walking calmly when they opened fire on him

16.06.2025 14:29 β€” πŸ‘ 90    πŸ” 12    πŸ’¬ 4    πŸ“Œ 7

I've received some information from a local about the individual accused of being the SLC shooter (who did not fire, was shot by 'official' security who also hit and killed an unrelated person

He'd done armed protesting before. Dressed more radically. Was a little awkward. no more than that

16.06.2025 02:31 β€” πŸ‘ 1517    πŸ” 230    πŸ’¬ 32    πŸ“Œ 32
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One person β€˜critically injured,’ one arrested after shooting as 10,000 march in Salt Lake City during No Kings protest Near the end of a march from Pioneer Park to the Wallace F. Bennett Federal Building, shots were fired. Salt Lake City police said they transported one person to a hospital and arrested another.

The Salt Lake City, Utah protest was interrupted by gunshots. One person is in critical condition and police have detained a person of interest.
#Utah #NoKings
www.sltrib.com/news/politic...

15.06.2025 04:15 β€” πŸ‘ 18    πŸ” 9    πŸ’¬ 0    πŸ“Œ 1
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I want to take a moment to share an excerpt from the Declaration of Independence's grievances against King George III.

Sound familiar?

13.06.2025 21:21 β€” πŸ‘ 16997    πŸ” 7623    πŸ’¬ 412    πŸ“Œ 451
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According to Gallup, evolutionists are winning hearts and minds. The change in slope starts before my 2011 book, so I can't claim all the credit.

08.05.2025 19:44 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
"WE'VE ARRANGED A society based on science and technology, in which nobody understands anything about science technology. And this combustible mixture of ignorance and power, sooner or later, is going to blow up in our faces. Who is running the science and technology in a democracy if the people don't know anything about it?"
"Science is more than a body of knowledge, it's a way of thinking. A way of skeptically interrogating the universe with a fine understanding of human fallibility. If we are not able to ask skeptical questions, to interrogate those who tell us that something is true, to be skeptical of those in authority, then we're up for grabs for the next charlatan, political or religious, who comes ambling along."

"WE'VE ARRANGED A society based on science and technology, in which nobody understands anything about science technology. And this combustible mixture of ignorance and power, sooner or later, is going to blow up in our faces. Who is running the science and technology in a democracy if the people don't know anything about it?" "Science is more than a body of knowledge, it's a way of thinking. A way of skeptically interrogating the universe with a fine understanding of human fallibility. If we are not able to ask skeptical questions, to interrogate those who tell us that something is true, to be skeptical of those in authority, then we're up for grabs for the next charlatan, political or religious, who comes ambling along."

I think a lot about what Carl Sagan said in one of his final interviews.

04.05.2025 06:21 β€” πŸ‘ 18521    πŸ” 6303    πŸ’¬ 247    πŸ“Œ 277
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100 days into this presidency, Americans are paying the price - higher prices, crashing retirement accounts, and broken promises.

But the American people are turning, thanks to your voices. Keep it up.

It's up to us to demand something better.

29.04.2025 14:24 β€” πŸ‘ 28655    πŸ” 6888    πŸ’¬ 858    πŸ“Œ 336

Europe needs to start a new alliance without the US and Hungary.

19.04.2025 22:41 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0