Jeffrey Ross-Ibarra's Avatar

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)

7,651 Followers  |  1,881 Following  |  4,443 Posts  |  Joined: 13.08.2023  |  2.4269

Latest posts by jrossibarra.bsky.social on Bluesky

So, like short read data too (curse you, autocorrect!)

07.10.2025 20:17 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
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Your regular reminder that plant genomes are messy. Good luck getting your shortbread data to recapitulate this:

07.10.2025 17:36 β€” πŸ‘ 29    πŸ” 2    πŸ’¬ 3    πŸ“Œ 0

amusingly I don't even know what repo this is for -- a colleague sent this screenshot she had apparently taken at the time, bemused by my commit message.

07.10.2025 16:04 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Even if it were accurate it seems like β€œtech that keeps people alive” should be pretty far down the list of climate change targets. Below lots we all do for convenience or money.

07.10.2025 14:53 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

No, nothing that sophisticated. I was just trying to reproduce Homer backing into the hedge.

07.10.2025 14:45 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Homer, as always, is my muse.

07.10.2025 14:43 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Preview
pixy: Unbiased estimation of nucleotide diversity and divergence in the presence of missing data - PubMed Population genetic analyses often use summary statistics to describe patterns of genetic variation and provide insight into evolutionary processes. Among the most fundamental of these summary statisti...

If only someone had warned us: pubmed.ncbi.nlm.nih.gov/33453139/

And warned us again:
onlinelibrary.wiley.com/doi/10.1111/...

But damnit this could be more useful if I could simulate missing... oh wait
www.biorxiv.org/content/10.1...

2/2

07.10.2025 03:01 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Everyone knows the potato peels go first THEN the coffee. A few scoops of sand helps the sink digest it all too.

07.10.2025 01:51 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Pretty close, but you switched the one on the left and the middle. Don’t fret too much, the taxonomy is difficult.

07.10.2025 01:48 β€” πŸ‘ 4    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Well this is a commit from 2018 so long past time for either option

07.10.2025 00:41 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
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Lots of things can be hidden in a corn field.

06.10.2025 22:29 β€” πŸ‘ 10    πŸ” 2    πŸ’¬ 3    πŸ“Œ 0

You're right! I was like 6 years ahead of my time!

06.10.2025 20:38 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Maize is easy. It’s so diverse, You could probably make a mammoth with six or seven generations of selection.

06.10.2025 19:04 β€” πŸ‘ 12    πŸ” 1    πŸ’¬ 1    πŸ“Œ 0
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One of my finer commit messages

06.10.2025 18:09 β€” πŸ‘ 160    πŸ” 7    πŸ’¬ 8    πŸ“Œ 0

This is pretty brilliant. If we turn orchids into mammoths 1) we avoid lots of IRB issues with work on animals until the very end 2) we save on orchid food. We might have to edit a few more genes, but I'd say 30 or 40 oughta do it.

06.10.2025 18:08 β€” πŸ‘ 9    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
Preview
DeBruce Grain Elevator explosion - Wikipedia

Fake news. en.m.wikipedia.org/wiki/DeBruce...

06.10.2025 15:20 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Argh. Autocorrect ruining my puns. Differences in masa not mass.

06.10.2025 14:53 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Obviously the bovine firewall weighs more, but once you acownt for differences in mass percentage corn is about zea same.

06.10.2025 13:54 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

And, as in epistatic thought he stood,
The Jabberwock, with eyes of flame,
Came whiffling through the tulgey wood,
And pleiotropy as it came!

05.10.2025 23:02 β€” πŸ‘ 1    πŸ” 1    πŸ’¬ 1    πŸ“Œ 0

I'm asbestos and you're glue, your concerns bounce off me and stick to you.

05.10.2025 22:45 β€” πŸ‘ 6    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

I came to say the same thing, but you beat me to it you... cheesy leather, second-hand, electric donkey bottom biters!

05.10.2025 22:41 β€” πŸ‘ 1    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
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As scientific director of HPC at UC Davis, I can say we spend a fair amount of time thinking about security. But today I learned it was all superfluous, as, after taking the mandated UC cybersecurity training, I discovered I am, in fact, a human firewall.

05.10.2025 22:38 β€” πŸ‘ 139    πŸ” 7    πŸ’¬ 10    πŸ“Œ 0
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So sad when grad students get lost in the nursery.

05.10.2025 20:43 β€” πŸ‘ 34    πŸ” 1    πŸ’¬ 1    πŸ“Œ 0
Chromosome number diversity found in animals and plants. (a) The bulldog ant, Myrmecia pilosula, 2n = 4 (from Crosland & Crozier, 1986) (b) The lycaenid butterfly, Lysandra atlantica, 2n = ca. 440 (from de Lesse, 1970) (c) Brachycome dichromosomatica, 2n = 4) (d) Adder's tongue fern Ophioglossum reticulatum 2n = ca. 1440 (from Ninan, 1958). Scale bar = 10 ΞΌm.

Chromosome number diversity found in animals and plants. (a) The bulldog ant, Myrmecia pilosula, 2n = 4 (from Crosland & Crozier, 1986) (b) The lycaenid butterfly, Lysandra atlantica, 2n = ca. 440 (from de Lesse, 1970) (c) Brachycome dichromosomatica, 2n = 4) (d) Adder's tongue fern Ophioglossum reticulatum 2n = ca. 1440 (from Ninan, 1958). Scale bar = 10 ΞΌm.

Ferns would like a word.

05.10.2025 17:41 β€” πŸ‘ 26    πŸ” 3    πŸ’¬ 2    πŸ“Œ 0
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One of my favorite cabs. Only $11K

05.10.2025 17:32 β€” πŸ‘ 5    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

I mean there was that one time he wore a tan suit. That's gotta count for something right? Make all this worthwhile?

05.10.2025 00:23 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

No but good suggestion!

04.10.2025 18:52 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Todays car ride attempt to introduce kids to new music: Caifanes, Stiff Little Fingers, and Oingo Boingo

04.10.2025 18:32 β€” πŸ‘ 5    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

I got them back! Facilities crew are wonderful.

04.10.2025 15:08 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Yeah not lucky here. Got my keys back fortunately but several weeks ago lost my wedding ring. Spent the evening going through all the trash in three men’s rooms with no luck.

04.10.2025 04:49 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

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