German Lagunas-Robles
@g-lagunasrobles.bsky.social
📤 156
📥 248
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postdoc @ IU Bloomington (Bracewell Lab) genome evolution, ants, sex chromosomes, beetles 🧬🐜🪲
reposted by
German Lagunas-Robles
Maria Akopyan, PhD
28 days ago
Our paper is out in @Science! The Atlantic silverside spans Earth's steepest latitudinal gradient in coastal sea-surface temperature. Despite high gene flow, populations show clinal genetic variation in multiple locally adapted traits.
doi.org/10.1126/scie...
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German Lagunas-Robles
Jonathan Romiguier
about 1 month ago
Queen-only parasitic parthogenetic ant. Cool combination!
www.cell.com/current-biol...
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A parasitic, parthenogenetic ant with only queens and without workers or males
Hamaguchi, Kinomura and colleagues describe an ant species that lacks workers and males and consists exclusively of queens.
https://www.cell.com/current-biology/fulltext/S0960-9822(25)01621-5
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German Lagunas-Robles
Molecular Biology and Evolution
about 2 months ago
Thomas et al. reveal that positively selected and differentially expressed hippocampal genes cluster near breakpoints in shrews, tying chromosomal rearrangements and accessible chromatin to adaptation and brain size plasticity. 🔗
doi.org/10.1093/molbev/msag006
📷 Christian Ziegler
#evobio
#molbio
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Check out our paper on the neo-sex chromosomes in mountain pine beetle! We assembled THREE neo-Ys that are quite distinct and their corresponding neo-Xs .
add a skeleton here at some point
about 2 months ago
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German Lagunas-Robles
bioRxiv Evolutionary Biology
3 months ago
Lethal epistasis maintains strong linkage disequilibrium between unlinked supergenes
https://www.biorxiv.org/content/10.64898/2026.01.08.698410v1
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German Lagunas-Robles
Hugo Darras
3 months ago
New work from
@miyapan.bsky.social
and our team, bringing ant, bee, and wasp labs together.
@chuanxinyu.bsky.social
shows that the ANTSR locus we discovered in ants has determined sex for 150+ My across bees and stinging wasps 🐜🐝, despite virtually no sequence conservation 😮
doi.org/10.1073/pnas...
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ANTSR seems to be the ancient master sex determining gene in Hymenoptera (as suggested by Pan et al. 2024)! So rad that a lncRNA is doing this!
www.biorxiv.org/content/10.6...
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Evidence for an ancient master sex determination gene in Hymenoptera
The vast majority of Hymenopterans determine sex by haplodiploidy, in which males and females develop from haploid unfertilized and diploid fertilized eggs, respectively. At the molecular level, the m...
https://www.biorxiv.org/content/10.64898/2025.12.24.696408v1.full.pdf+html
3 months ago
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German Lagunas-Robles
ISYEB
4 months ago
New in
@currentbiology.bsky.social
"Genomic evidence of a complex supergene system linking dispersal to social polymorphism"
#Myrmecina_graminicola
Mona,S., Gay,E.J., Ducancel,J., Laso-Jadart,R., Chifflet-Belle, P., Doums,C.
@isyeb.mnhn.fr
@ephe-psl.bsky.social
et al. 🐜
www.cell.com/current-biol...
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Genomic evidence of a complex supergene system linking dispersal to social polymorphism
Mona et al. report a complex supergene system in the ant Myrmecina graminicola characterized by three alleles determining both the number of queens in a colony (monogyne vs. polygyne) and the presence...
https://www.cell.com/current-biology/fulltext/S0960-9822%2825%2901412-5
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🧬🧬 A human supergene 🧬🧬
www.biorxiv.org/content/10.1...
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A human supergene: BRCA1, CCDC200, and U2 snRNAs
BRCA1 occurs on one of two major haplotypes in populations of European and Asian ancestry that show signs of selection and functional differences. Near-maximal linkage disequilibrium associated with t...
https://www.biorxiv.org/content/10.1101/2025.11.08.687349v1.full
5 months ago
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German Lagunas-Robles
PLOS Biology
5 months ago
#Haplodiploid
inheritance is found in all species of
#Hymenoptera
.
@mwbstr.bsky.social
&co map the
#sex
determining
#gene
of the red mason
#bee
to the ANTSR gene region, suggesting a shared, ancient origin of
#SexDetermination
in bees & ants >150 Mya ago
@plosbiology.org
🧪
plos.io/47COEtH
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2 year postdoc position in evolutionary genomics at University of California, Riverside in the Purcell Lab! 🧬🐜
6 months ago
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German Lagunas-Robles
Charlotte Wright
7 months ago
How many chromosomes can an animal have? In our paper out now in
@currentbiology.bsky.social
we show that the Atlas blue butterfly has 229 chromosome pairs- the highest in diploid Metazoa! These arose by rapid autosome fragmentation while sex chromosomes stayed intact.
www.cell.com/current-biol...
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Constraints on chromosome evolution revealed by the 229 chromosome pairs of the Atlas blue butterfly
The genome of the Atlas blue butterfly contains ten times more chromosomes than most butterflies, and more than any other known diploid animal. Wright et al. show that this extraordinary karyotype is ...
https://tinyurl.com/atlasbluebutterfly
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ggplot2 ethusiasts, new update just dropped! 🔥🔥🔥
add a skeleton here at some point
7 months ago
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German Lagunas-Robles
Thomas Lin Pedersen
7 months ago
I am beyond excited to announce that ggplot2 4.0.0 has just landed on CRAN. It's not every day we have a new major
#ggplot2
release but it is a fitting 18 year birthday present for the package. Get an overview of the release in this blog post and be on the lookout for more in-depth posts
#rstats
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ggplot2 4.0.0
A new major version of ggplot2 has been released on CRAN. Find out what is new here.
https://www.tidyverse.org/blog/2025/09/ggplot2-4-0-0/
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German Lagunas-Robles
Nature
7 months ago
A common type of ant in Europe breaks a fundamental rule in biology: its queens can produce male offspring that are a whole different species
go.nature.com/4mOb5T9
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‘Almost unimaginable’: these ants are different species but share a mother
Ant queens of one species clone ants of another to create hybrid workers that do their bidding.
https://go.nature.com/4mOb5T9
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Check out our latest preprint in Formica ants! We investigate how the sex ratio supergene evolved. We find that a colony-level sex ratio supergene evolved twice! This likely occurred as a result of recombination between the the ancestral queen number supergenes present in Formica. 🧬🐜🧬🐜🧬🐜
add a skeleton here at some point
7 months ago
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Excited to share some of the latest work coming from the Formica ant supergene system 🐜🧬! This project represents many collection trips and years of work!
doi.org/10.1101/2025...
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Variation in social organization and supergene control along a latitudinal gradient
Widespread species often experience vastly different environmental conditions across their range. In species with polymorphic traits under strong genetic control, we can investigate how environmental ...
https://doi.org/10.1101/2025.07.20.665811
8 months ago
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German Lagunas-Robles
Judith Mank
9 months ago
Very pleased to see this officially out - Genome Architecture and Speciation in Plants and Animals. With
@siluwang.bsky.social
,
@dortizba.bsky.social
and Loren Rieseberg.
onlinelibrary.wiley.com/doi/10.1111/...
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https://onlinelibrary.wiley.com/doi/10.1111/mec.70004
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German Lagunas-Robles
Journal of Evolutionary Biology
11 months ago
The
#EditorsChoice
for this month from EIC
@maxreuter.bsky.social
is "Unexpected absence of a multiple-queen supergene haplotype from supercolonial populations of Formica ants" by
@g-lagunasrobles.bsky.social
et al
academic.oup.com/jeb/article/...
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Unexpected absence of a multiple-queen supergene haplotype from supercolonial populations of Formica ants
Abstract. Ants exhibit many complex social organization strategies. One particularly elaborate strategy is supercoloniality, in which a colony consists of
https://academic.oup.com/jeb/article/38/4/543/8078867
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Is supercoloniality a simple extension of polygyny?Supercolonies, networks of interconnected nests with many queens, have been proposed as a natural extension of multi-queen nests. In many Formica ants, a supergene determines whether a colony has a single queen or many queens. (1/n)
add a skeleton here at some point
12 months ago
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German Lagunas-Robles
bioRxiv Evolutionary Biology
about 1 year ago
A novel supergene controls queen size and colony social organization in the ant Myrmica ruginodis
https://www.biorxiv.org/content/10.1101/2025.03.24.644106v1
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German Lagunas-Robles
PLOS Biology
about 1 year ago
Dynamics of a supergene. A study of the BC supergene in wing color morphs of the African monarch
#butterfly
by
@rishidekayne.bsky.social
&co reveals dynamic evolution of
#supergene
haplotypes, fueled by incomplete recombination suppression 🧪
@plosbiology.org
plos.io/3DiFhnL
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German Lagunas-Robles
Jana Helsen
about 1 year ago
Centromere evolution isn't a sudden switch! Our study shows centromere transitions are a step-by-step process driven by a combination of drift and selection. Discover how the kinetochore interface shapes this gradual change in our new preprint 🥳
doi.org/10.1101/2025.01.16.633479
🧵(1/8)
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David Toews
over 1 year ago
🦉🧪 Questions about high latitude myrtle warblers have been "up in the air" (pun intended) since 1899!
@stephszarmach.bsky.social
used fancy new geolocators that track light AND barometric pressure to add an unexpected chapter to this tale ......
add a skeleton here at some point
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Our preprint on the unexpected absence of a multiple-queen supergene haplotype in supercolonial populations is up on bioRxiv! We found that the P haplotype is not necessary for supercoloniality in the Formica rufa group, despite its longstanding association with non-supercolonial polygyny.
add a skeleton here at some point
over 1 year ago
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German Lagunas-Robles
Julian Catchen
over 1 year ago
Happy to release Stacks v2.67 today. This release updates process_radtags to make it easier to use SRA data and to filter poly-G (error) runs coming from Nextseq/Novaseq machines + bugfixes. We also added a genotype depth filter to populations
#RADseq
catchenlab.life.illinois.edu/stacks/
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Stacks
https://catchenlab.life.illinois.edu/stacks/
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German Lagunas-Robles
The American Genetic Association
almost 2 years ago
New article: 'The role of conflict in the formation and maintenance of variant sex chromosome systems in mammals' 🔬 From fusions to Y chromosome loss, sex chromosome karyotypes vary widely in mammalian genomes. 1/3
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German Lagunas-Robles
Susan Johnston
about 2 years ago
With a link that works 😊
add a skeleton here at some point
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German Lagunas-Robles
Julia Kreiner
over 2 years ago
Hey ya'll. Our paper on the phenotypic consequences of intraspecific variation in repeat content and genome size was published over the holidays. Check it out when you get back to work :)
journals.plos.org/plosgenetics...
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Quantifying the role of genome size and repeat content in adaptive variation and the architecture of...
Author summary The remarkable and seemingly inconsequential variation in genome size across species has long been an enigma in evolutionary biology. Calling this viewpoint into question, correlations ...
https://journals.plos.org/plosgenetics/article?id=10.1371/journal.pgen.1010865
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German Lagunas-Robles
Mark Hibbins, Great Lakes Swashbuckler
over 2 years ago
Excited to share the first paper from my postdoc, using phylogenomics to uncover dynamic genome evolution in Rumex! Featuring
@joannarifkin.bsky.social
,
@bmsacchi.bsky.social
,
@stepheniwright.bsky.social
, and others not on the app!
www.biorxiv.org/content/10.1...
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Phylogenomics resolves key relationships in Rumex and uncovers a dynamic history of independently ev...
bioRxiv - the preprint server for biology, operated by Cold Spring Harbor Laboratory, a research and educational institution
https://www.biorxiv.org/content/10.1101/2023.12.13.571571v1
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Posting for my colleague Giulia Scarparo and collaborators. Check out their new paper on a supergene that controls for queen miniaturization! Giulia's post attached below. Paper here:
www.cell.com/current-biol...
over 2 years ago
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German Lagunas-Robles
David Toews
over 2 years ago
Steph Szarmach discusses her geolocator work on Alaskan Myrtle warblers! *Spoiler alert*: there are no spoilers!
wilsonsociety.org/2023/11/07/g...
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Guest Post: Tracking the Migrations of Alaskan Myrtle Warblers
Standing in a clearing surrounded by black spruce and birch, I raise my binoculars after spotting a quick flash of movement high up in the foliage.
https://wilsonsociety.org/2023/11/07/guest-post-tracking-the-migrations-of-alaskan-myrtle-warblers/
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German Lagunas-Robles
Tanja Slotte
over 2 years ago
Super happy to be awarded a project grant for our Linum supergene and mating system work from the Swedish Research Council, AND a Formas grant on unlocking genetic variation for drought tolerance using landscape genomics in crop wild relatives!
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German Lagunas-Robles
Dr. Brendan "Doesn't-go-to-Ravenholm" Pinto
over 2 years ago
Mitonuclear sex determination? Empirical evidence from bivalves.
academic.oup.com/mbe/advance-...
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Mitonuclear sex determination? Empirical evidence from bivalves
Abstract. Genetic elements encoded in nuclear DNA determine the sex of an individual in many animals. In certain bivalve lineages that possess doubly uniparenta
https://academic.oup.com/mbe/advance-article/doi/10.1093/molbev/msad240/7341933?login=false
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German Lagunas-Robles
Matthew Hahn
over 2 years ago
New from
@snaildit.bsky.social
and me. We find that popular methods for detecting introgression between sister species (fastsimcoal2, dadi, BPP) all have high false positive rates in biologically realistic settings.
www.biorxiv.org/content/10.1...
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German Lagunas-Robles
Anna Tigano
over 2 years ago
Our new paper on the genomic vulnerability of climate change in Kokanee (resident ecotype of sockeye salmon) is out today
doi.org/10.1111/eva....
We packed a lot of questions in this paper, and there is something for every taste: climate change, adaptive potential, heat waves,
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Genomic vulnerability of a freshwater salmonid under climate change
Evolutionary Applications is an open access evolutionary biology journal, covering questions of health, social and economic significance.
http://doi.org/10.1111/eva.13602
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German Lagunas-Robles
E. Anne Chambers
over 2 years ago
Want to use landscape genomics for conservation? Curious about how to apply these methods to individual-based sampling? Not to worry– use algatr! Our new paper w/ co-first author
@anushabishop.bsky.social
and coauthor Ian Wang is out in MER! More below ⬇️
#OA
onlinelibrary.wiley.com/doi/10.1111/...
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Individual‐based landscape genomics for conservation: An analysis pipeline
Molecular Ecology Resources is a broad journal publishing computer programs, statistical & molecular advances & more for studies in evolution, ecology & conservation.
https://onlinelibrary.wiley.com/doi/10.1111/1755-0998.13884
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German Lagunas-Robles
Henry North
over 2 years ago
A polygenic explanation for Haldane’s rule in butterflies
www.pnas.org/doi/abs/10.1...
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German Lagunas-Robles
Julian Catchen
over 2 years ago
I have been having a lot of fun revising private allele analysis in
#Stacks
from
#RADseq
data. What are private alleles? Given SNPs in a set of populations, a private allele is found only in a specific population. 1/n
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German Lagunas-Robles
bioRxiv Evolutionary Biology
over 2 years ago
Continuously fluctuating selection reveals extreme granularity and parallelism of adaptive tracking https://www.biorxiv.org/content/10.1101/2023.10.16.562586v1
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Continuously fluctuating selection reveals extreme granularity and parallelism of adaptive tracking https://www.biorxiv.org/content/10.1101/2023.10.16.562586v1
Temporally fluctuating environmental conditions are a ubiquitous feature of natural habitats. Yet, h
https://www.biorxiv.org/content/10.1101/2023.10.16.562586v1
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