Jeffrey Ross-Ibarra
@jrossibarra.bsky.social
evolutionary genomics of maize and wild relatives. erstwhile ethnobotanist. purveyor of bad puns. dad. prof and HPC director at UC Davis. not actually a cool cow from 1994. rilab.ucdavis.edu. views, especially bad ones, mine only (he/him)
Pinned
“You will be visited by three spirits.”
The three spirits.
The three spirits.
November 25, 2025 at 3:13 PM
“You will be visited by three spirits.”
The three spirits.
The three spirits.
Reposted by Jeffrey Ross-Ibarra
I've seen things you Peanuts wouldn't believe, Brown. Fishing boats on fire off the shores of Venuzuela. I watched tacky gilt glitter in the dark in the Oval Office. All our history will be lost in time, like beers down the drain. Time to drink.
November 24, 2025 at 2:54 AM
I've seen things you Peanuts wouldn't believe, Brown. Fishing boats on fire off the shores of Venuzuela. I watched tacky gilt glitter in the dark in the Oval Office. All our history will be lost in time, like beers down the drain. Time to drink.
"Her wit was as sharp as her convictions, and her honesty was refreshing and rare."
A wonderfully written (by @gbaucom.bsky.social) obituary for my grad school friend and Auburn University Prof. Vanessa Koelling, who passed away last week.
www.dignitymemorial.com/obituaries/m...
A wonderfully written (by @gbaucom.bsky.social) obituary for my grad school friend and Auburn University Prof. Vanessa Koelling, who passed away last week.
www.dignitymemorial.com/obituaries/m...
Vanessa Koelling Obituary - Montgomery, AL
Celebrate the life of Vanessa Koelling, leave a kind word or memory and get funeral service information care of Leak Memory Chapel.
www.dignitymemorial.com
November 24, 2025 at 12:30 AM
"Her wit was as sharp as her convictions, and her honesty was refreshing and rare."
A wonderfully written (by @gbaucom.bsky.social) obituary for my grad school friend and Auburn University Prof. Vanessa Koelling, who passed away last week.
www.dignitymemorial.com/obituaries/m...
A wonderfully written (by @gbaucom.bsky.social) obituary for my grad school friend and Auburn University Prof. Vanessa Koelling, who passed away last week.
www.dignitymemorial.com/obituaries/m...
Reposted by Jeffrey Ross-Ibarra
I am currently searching for a new postdoctoral researcher to study the evolution, genetics, and physiology of cold acclimation and freezing tolerance in switchgrass at Michigan State University. This work will be funded by a newly funded five-year DOE grant. careers.msu.edu/jobs/researc...
Research Associate-Fixed Term - East Lansing, Michigan, United States
Position Summary
The Lowry Lab at Michigan State University is searching for a postdoctoral research associate to conduct molecular and physiological experiments to understand the causes of genetic va...
careers.msu.edu
November 20, 2025 at 2:50 PM
I am currently searching for a new postdoctoral researcher to study the evolution, genetics, and physiology of cold acclimation and freezing tolerance in switchgrass at Michigan State University. This work will be funded by a newly funded five-year DOE grant. careers.msu.edu/jobs/researc...
Reposted by Jeffrey Ross-Ibarra
I wrote a little bit about the "missing heritability" question and several recent studies that have brought it to a close. A short 🧵
The missing heritability question is now (mostly) answered
Not with a bang but with a whimper
theinfinitesimal.substack.com
November 21, 2025 at 10:34 PM
I wrote a little bit about the "missing heritability" question and several recent studies that have brought it to a close. A short 🧵
Dr. Cheeto would like a word. en.wikipedia.org/wiki/Cheeto_...
November 22, 2025 at 4:37 AM
Dr. Cheeto would like a word. en.wikipedia.org/wiki/Cheeto_...
I complain a lot about how easy human geneticists have with their biobank-scale data and existing datasets ("I'll just download this pre-made pangenome and ARG"), but then I'm reminded they can't replicate genotypes or control environments and I feel better
I think pretty much all estimates of heritability are the same. I mean they're all between 0 and 1. From this fantastic piece by @sashagusevposts.bsky.social theinfinitesimal.substack.com/p/the-missin...
November 22, 2025 at 4:35 AM
I complain a lot about how easy human geneticists have with their biobank-scale data and existing datasets ("I'll just download this pre-made pangenome and ARG"), but then I'm reminded they can't replicate genotypes or control environments and I feel better
8yo just asked to play "six-seven nation army". he laughed at the slip-up but what a wonderful chimera of generations.
November 22, 2025 at 4:34 AM
8yo just asked to play "six-seven nation army". he laughed at the slip-up but what a wonderful chimera of generations.
I think pretty much all estimates of heritability are the same. I mean they're all between 0 and 1. From this fantastic piece by @sashagusevposts.bsky.social theinfinitesimal.substack.com/p/the-missin...
November 22, 2025 at 4:25 AM
I think pretty much all estimates of heritability are the same. I mean they're all between 0 and 1. From this fantastic piece by @sashagusevposts.bsky.social theinfinitesimal.substack.com/p/the-missin...
Anyone have a csv of the Kew C-Value database? I want to remake this figure but looks like website won't let me just download all values anymore. cvalues.science.kew.org/search/angio...
November 21, 2025 at 4:29 AM
Anyone have a csv of the Kew C-Value database? I want to remake this figure but looks like website won't let me just download all values anymore. cvalues.science.kew.org/search/angio...
I chuckled to myself about this one.
November 21, 2025 at 3:17 AM
I chuckled to myself about this one.
Reposted by Jeffrey Ross-Ibarra
In honor of Larry Summers, I asked the female members of my college class (1987) to say if they had any experiences with sexual harassment by teachers/professors, back when this was tolerated as, I dunno, the cost of attending college, and OH MY GOD.
November 21, 2025 at 12:13 AM
In honor of Larry Summers, I asked the female members of my college class (1987) to say if they had any experiences with sexual harassment by teachers/professors, back when this was tolerated as, I dunno, the cost of attending college, and OH MY GOD.
Reposted by Jeffrey Ross-Ibarra
Thoroughly enjoyed @arunsethuraman.bsky.social's talk at the @ucriverside.bsky.social BPSC seminar today, "Exploring angiosperm polyploidy continuum at the species and population levels" 🌱 🌱
@jrossibarra.bsky.social made an appearance in one of the slides!!
@jrossibarra.bsky.social made an appearance in one of the slides!!
November 20, 2025 at 3:57 AM
Thoroughly enjoyed @arunsethuraman.bsky.social's talk at the @ucriverside.bsky.social BPSC seminar today, "Exploring angiosperm polyploidy continuum at the species and population levels" 🌱 🌱
@jrossibarra.bsky.social made an appearance in one of the slides!!
@jrossibarra.bsky.social made an appearance in one of the slides!!
Wonderful #Zeavolution this morning on heirloom corn by Sherry Flint-Garcia youtu.be/hzDyzD1cc3Q
Corn for The People
YouTube video by Zeavolution
youtu.be
November 20, 2025 at 3:16 AM
Wonderful #Zeavolution this morning on heirloom corn by Sherry Flint-Garcia youtu.be/hzDyzD1cc3Q
Reposted by Jeffrey Ross-Ibarra
I was fortunate to listen a great talk by Sherry Flint-Garcia this morning in the Zeavolution seminar series.
The pigmentation imaging of maize kernel at cellular level is gorgeous! 🌽🔬
The pigmentation imaging of maize kernel at cellular level is gorgeous! 🌽🔬
November 19, 2025 at 4:48 PM
I was fortunate to listen a great talk by Sherry Flint-Garcia this morning in the Zeavolution seminar series.
The pigmentation imaging of maize kernel at cellular level is gorgeous! 🌽🔬
The pigmentation imaging of maize kernel at cellular level is gorgeous! 🌽🔬
Reposted by Jeffrey Ross-Ibarra
WE FOUND IT! We trekked day and night through tiger-patrolled Sumatran rainforests accessible only under permit for this: Rafflesia hasseltii. Few people have ever seen this flower, and we watched it open by night. Magic.
November 19, 2025 at 12:48 AM
WE FOUND IT! We trekked day and night through tiger-patrolled Sumatran rainforests accessible only under permit for this: Rafflesia hasseltii. Few people have ever seen this flower, and we watched it open by night. Magic.
Reposted by Jeffrey Ross-Ibarra
My radical edu take: LLMs devalue knowledge retrieval, so the 3 most important skills to learn in school now are
1. identifying high-qualilty information from the rest,
2. making good decisions in an oversaturated information environment
3. understanding the difference between data and knowledge
1. identifying high-qualilty information from the rest,
2. making good decisions in an oversaturated information environment
3. understanding the difference between data and knowledge
November 18, 2025 at 5:44 PM
My radical edu take: LLMs devalue knowledge retrieval, so the 3 most important skills to learn in school now are
1. identifying high-qualilty information from the rest,
2. making good decisions in an oversaturated information environment
3. understanding the difference between data and knowledge
1. identifying high-qualilty information from the rest,
2. making good decisions in an oversaturated information environment
3. understanding the difference between data and knowledge
Reposted by Jeffrey Ross-Ibarra
periodic reminder of the existence of Atkinson Hyperlegible, a free font available from the Braille Institute designed to improve readability for people with low vision
I use it in talks because it's pretty and also because, as an audience member, I am perpetually squinting at people's slides
I use it in talks because it's pretty and also because, as an audience member, I am perpetually squinting at people's slides
Atkinson Hyperlegible Font - Braille Institute
Read easier with Atkinson Hyperlegible Font, crafted for low-vision readers. Download for free and enjoy clear letters and numbers on your computer!
www.brailleinstitute.org
November 17, 2025 at 4:19 AM
periodic reminder of the existence of Atkinson Hyperlegible, a free font available from the Braille Institute designed to improve readability for people with low vision
I use it in talks because it's pretty and also because, as an audience member, I am perpetually squinting at people's slides
I use it in talks because it's pretty and also because, as an audience member, I am perpetually squinting at people's slides
I don’t have any saved memes. What does it say about my moral philosophy that I save photos of fungus and hundreds of sea lion skulls?
November 17, 2025 at 3:35 AM
I don’t have any saved memes. What does it say about my moral philosophy that I save photos of fungus and hundreds of sea lion skulls?
Apparently you go offline for one night and forget how to spell.
Recked cars, great weather, and a skill of ?? In quick overnight backpack with 8yo. Only 2nd time I’ve seen a black widow out in the woods!
November 17, 2025 at 3:13 AM
Apparently you go offline for one night and forget how to spell.
Reposted by Jeffrey Ross-Ibarra
Hello. I live in Los Angeles. The president is lying.
June 8, 2025 at 9:54 PM
Hello. I live in Los Angeles. The president is lying.
So many species of woodpecker. How to know which one did this?
November 16, 2025 at 11:04 PM
So many species of woodpecker. How to know which one did this?
Any suggestions on ID of this?
November 16, 2025 at 9:59 PM
Any suggestions on ID of this?
Recked cars, great weather, and a skill of ?? In quick overnight backpack with 8yo. Only 2nd time I’ve seen a black widow out in the woods!
November 16, 2025 at 9:24 PM
Recked cars, great weather, and a skill of ?? In quick overnight backpack with 8yo. Only 2nd time I’ve seen a black widow out in the woods!
I dunno if my lab can stay in business if the cost of Transposons keeps going up like this.
November 15, 2025 at 3:41 PM
I dunno if my lab can stay in business if the cost of Transposons keeps going up like this.