Lightnews — Scholar-powered news

Jeffrey Ross-Ibarra

@jrossibarra.bsky.social

7.7K followers 1.9K following 4.5K posts

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)

Posts Media Videos Starter Packs

Pinned

Jeffrey Ross-Ibarra @jrossibarra.bsky.social · Jul 22

Something something Panglossian paradigm

2 4 40

Jeffrey Ross-Ibarra @jrossibarra.bsky.social · 1h

PEQG website live! genetics-gsa.org/peqg-2026/

Homepage - 2026 Population, Evolutionary, and Quantitative Genetics Conference

Visit our website to learn more.

genetics-gsa.org

10 13

Reposted by Jeffrey Ross-Ibarra

Artologica aka Michele Banks @artologica.net · 3h

Suzanne Anker, Remote Sensing #7
3D printed plaster and resin #sciart

Petri dish with a sculptural landscape type scene inside

3 22

Jeffrey Ross-Ibarra @jrossibarra.bsky.social · 14h

I had to do a double take reading it as my first thought was "that's not the story I remember of the origin of the Miranda Rights"

Jeffrey Ross-Ibarra @jrossibarra.bsky.social · 15h

Second fastest time in 12 years. Just over 45 minutes to get through the maze. In the dark.

Jeffrey Ross-Ibarra @jrossibarra.bsky.social · 21h

Ferns are highly evolved from more basal life forms. One rung below corn on the celestial ladder.

Jeffrey Ross-Ibarra @jrossibarra.bsky.social · 1d

Damn, back in my day we only worried about razors.

Jeffrey Ross-Ibarra @jrossibarra.bsky.social · 1d

I knew I should have paid for the high end library prep kit…

Jeffrey Ross-Ibarra @jrossibarra.bsky.social · 1d

You’d have to be bananas bread to even try. I of course did, with an online aligner, and the browser cookies nearly crashed my computer.

Jeffrey Ross-Ibarra @jrossibarra.bsky.social · 1d

This is why shortbreads are bad to sequence with. They just bounce right off.

3 9

Jeffrey Ross-Ibarra @jrossibarra.bsky.social · 1d

You mean the ICNafpl, right?

1 2

Jeffrey Ross-Ibarra @jrossibarra.bsky.social · 1d

Agreed!

Jeffrey Ross-Ibarra @jrossibarra.bsky.social · 1d

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

1 3

Jeffrey Ross-Ibarra @jrossibarra.bsky.social · 2d

Your regular reminder that plant genomes are messy. Good luck getting your shortbread data to recapitulate this:

4 8 94

Jeffrey Ross-Ibarra @jrossibarra.bsky.social · 2d

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.

1 1

Jeffrey Ross-Ibarra @jrossibarra.bsky.social · 2d

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

Jeffrey Ross-Ibarra @jrossibarra.bsky.social · 2d

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

1 3

Jeffrey Ross-Ibarra @jrossibarra.bsky.social · 2d

Homer, as always, is my muse.

Jeffrey Ross-Ibarra @jrossibarra.bsky.social · 2d

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

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...

pubmed.ncbi.nlm.nih.gov

Jeffrey Ross-Ibarra @jrossibarra.bsky.social · 2d

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

1 3

Jeffrey Ross-Ibarra @jrossibarra.bsky.social · 2d

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

1 5

Jeffrey Ross-Ibarra @jrossibarra.bsky.social · 2d

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

1 1

Jeffrey Ross-Ibarra @jrossibarra.bsky.social · 2d

Lots of things can be hidden in a corn field.

3 2 11

Jeffrey Ross-Ibarra @jrossibarra.bsky.social · 2d

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

Jeffrey Ross-Ibarra @jrossibarra.bsky.social · 2d

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

1 1 12

Jeffrey Ross-Ibarra @jrossibarra.bsky.social · 2d

One of my finer commit messages

8 7 160