Kevin Sánchez 🇦🇷
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kisanchez.bsky.social
Kevin Sánchez 🇦🇷
@kisanchez.bsky.social
#Doctor en Ciencias Biológicas por Univ. Nac. Córdoba #Becario posdoctoral del IPEEC-CONICET #systematics #speciation_research #popgen
Reposted by Kevin Sánchez 🇦🇷
I think Bluesky is a great platform and I’m here to stay. However, a bookmark function would make the experience SO much better and much more functional for research/ information gathering, especially for reporters. Pretty please @support.bsky.team @bsky.app ?
January 14, 2025 at 8:14 PM
Reposted by Kevin Sánchez 🇦🇷
New study by @tribblelab.bsky.social @jimarcor.bsky.social @marcialescudero.bsky.social Michael May, Rosana Zenil-Ferguson and myself just out:

Introduces a novel HiSSE chromosome model and demonstrates the importance of chrom. evol. in #sedge diversity.

nph.onlinelibrary.wiley.com/doi/10.1111/...
December 26, 2024 at 1:01 PM
Reposted by Kevin Sánchez 🇦🇷
Instead of listing my publications, as the year draws to an end, I want to shine the spotlight on the commonplace assumption that productivity must always increase. Good research is disruptive and thinking time is central to high quality scholarship and necessary for disruptive research.
December 20, 2024 at 11:18 AM
Reposted by Kevin Sánchez 🇦🇷
My and Derek Setter's work on gene flow is now published in the latest issue of Genetics. We show that it is possible to detect past gene flow between two populations by summarising the asymmetry in pop-specific external branch lengths. 1/2
tinyurl.com/5ff8ch9e
Genealogical asymmetry under the isolation with migration model and a two-taxon test for gene flow
Abstract. Methods for detecting gene flow between populations often rely on asymmetry in the average length of particular genealogical branches, with the A
tinyurl.com
December 12, 2024 at 2:17 PM
Reposted by Kevin Sánchez 🇦🇷
Climate drives long-term landscape and rapid short-term promoter evolution in the Western Canaries lizard, Gallotia galloti https://www.biorxiv.org/content/10.1101/2024.12.18.628907v1
December 21, 2024 at 11:32 AM
Reposted by Kevin Sánchez 🇦🇷
Structural rearrangements and selection promote phenotypic evolution in Anolis lizards https://www.biorxiv.org/content/10.1101/2024.12.12.628123v1
December 17, 2024 at 5:33 AM
Reposted by Kevin Sánchez 🇦🇷
macOS folk: This is your periodic reminder 🎗️ to:

```bash
$ brew update && brew upgrade && brew cleanup
```

I just got back 10.7 GB & patched a slew of CVEs.
December 16, 2024 at 1:55 AM
Reposted by Kevin Sánchez 🇦🇷
A little bomb. They're not saying hybridization didn't happen, they're arguing that it hasn't been conclusively shown, as the same patterns can be produced in other ways without Neanderthal admixture. An interesting read. Thoughts?
www.nature.com/articles/s41...
Ignoring population structure in hominin evolutionary models can lead to the inference of spurious admixture events - Nature Ecology & Evolution
Simulating a metapopulation of human evolution without Neanderthal introgression into Homo sapiens still identifies Neanderthal fragments in simulated genomes, and an admixture event that never took p...
www.nature.com
December 14, 2024 at 7:39 AM
Reposted by Kevin Sánchez 🇦🇷
New paper with @snaildit.bsky.social

You can use paralogs to reduce long-branch attraction!
This will be especially helpful when there are no extant taxa that can be sampled to break up these branches.

www.biorxiv.org/content/10.1...
December 13, 2024 at 2:35 PM
Reposted by Kevin Sánchez 🇦🇷
If you're interested in trying out LLMs in #rstats but don't know where to begin, I've added a few two vignettes to elmer: elmer.tidyverse.org/articles/elm... and elmer.tidyverse.org/articles/pro...
Getting started with elmer
elmer.tidyverse.org
November 29, 2024 at 3:45 PM
Reposted by Kevin Sánchez 🇦🇷
Sara Reardon's story on the genetics of coat color in cats was a delight to read (and not just because my sweet calico, Mona Lisa, got to make her Science debut). Now I'm just waiting for scientists to make a discovery about tabbies, so Mo's brother Vinny can get his moment in the spotlight!
Gene behind orange fur in cats found at last
After 60 years, scientists know why gingers, calicos, and tortoiseshells look the way they do
www.science.org
November 27, 2024 at 9:17 PM
Reposted by Kevin Sánchez 🇦🇷
NEW Publication!😄

Here, we show how #PhyKIT — a broadly applicable toolkit for #phylogenomics — can be used to construct phylogenomic data matrices (& quantify biases therein), detect anomalies in predicted orthology, calculate gene-gene coevolution, & more!

🔗: tinyurl.com/yc5ja4xz
November 25, 2024 at 5:25 PM
Reposted by Kevin Sánchez 🇦🇷
Final text and PDF of our new approach - Delta-statistics - to detecting directionality of admixture (introgression, hybridization) between species/populations - empirical example reanalyzes gene flow between polar and brown bears

academic.oup.com/mbe/article/...
Five-leaf Generalizations of the D-statistic Reveal the Directionality of Admixture
Abstract. Over the past 15 years, the D-statistic, a four-taxon test for organismal admixture (hybridization, or introgression) which incorporates single n
academic.oup.com
November 23, 2024 at 1:31 AM
Migrando a 🦋
November 24, 2024 at 3:22 AM