Leo
@leogdlima.bsky.social
Mais um salvo do inferno da rede do passarinho
Reposted by Leo
A paper in Nature shows that a 3.4-million-year-old partial foot found in Ethiopia in 2009 belongs to an ancient human relative named Australopithecus deyiremeda, a more primitive species of Australopithecus than the famous ‘Lucy’ (A. afarensis). go.nature.com/49BkCZY 🏺 🧪
November 26, 2025 at 8:47 PM
A paper in Nature shows that a 3.4-million-year-old partial foot found in Ethiopia in 2009 belongs to an ancient human relative named Australopithecus deyiremeda, a more primitive species of Australopithecus than the famous ‘Lucy’ (A. afarensis). go.nature.com/49BkCZY 🏺 🧪
Reposted by Leo
Reposted by Leo
CRISPR-Cas–mediated heritable chromosome fusions in Arabidopsis | Science www.science.org/doi/10.1126/...
Very nice work from Holger Puchta & colleagues
Very nice work from Holger Puchta & colleagues
CRISPR-Cas–mediated heritable chromosome fusions in Arabidopsis
The genome of Arabidopsis thaliana consists of 10 chromosomes. By inducing CRISPR-Cas–mediated breaks at subcentromeric and subtelomeric sequences, we fused entire chromosome arms, obtaining two eight...
www.science.org
November 20, 2025 at 8:47 PM
CRISPR-Cas–mediated heritable chromosome fusions in Arabidopsis | Science www.science.org/doi/10.1126/...
Very nice work from Holger Puchta & colleagues
Very nice work from Holger Puchta & colleagues
Coisa de mau-caratismo extremo fazer isso no dia da consciência negra. Parabéns, seu cocô
November 20, 2025 at 6:41 PM
Coisa de mau-caratismo extremo fazer isso no dia da consciência negra. Parabéns, seu cocô
Reposted by Leo
A bittersweet acceptance: Between a manuscript and grief
Stefanie Williams @sillysciencelady.bsky.social shares the story behind her paper on the synaptonemal complex, including a tribute to her supervisor Scott Hawley, who passed away while Stefanie was completing the research.
Stefanie Williams @sillysciencelady.bsky.social shares the story behind her paper on the synaptonemal complex, including a tribute to her supervisor Scott Hawley, who passed away while Stefanie was completing the research.
A bittersweet acceptance: Between a manuscript and grief - the Node
I was so excited when I received notification that my first first-author research paper was accepted. My excitement quickly turned into sadness with the realization that my co-PI was not seeing our vi...
thenode.biologists.com
November 17, 2025 at 9:58 AM
A bittersweet acceptance: Between a manuscript and grief
Stefanie Williams @sillysciencelady.bsky.social shares the story behind her paper on the synaptonemal complex, including a tribute to her supervisor Scott Hawley, who passed away while Stefanie was completing the research.
Stefanie Williams @sillysciencelady.bsky.social shares the story behind her paper on the synaptonemal complex, including a tribute to her supervisor Scott Hawley, who passed away while Stefanie was completing the research.
Reposted by Leo
Join us! 🧬🪰🎉🔬
We are currently advertising two #PhD projects to study the #evolution, #development and #genomics of sexual traits in stalk-eyed flies.
Deadline for applying is Wednesday, January 7, 2026. Get in touch for more info!
We are currently advertising two #PhD projects to study the #evolution, #development and #genomics of sexual traits in stalk-eyed flies.
Deadline for applying is Wednesday, January 7, 2026. Get in touch for more info!
November 17, 2025 at 3:58 PM
Join us! 🧬🪰🎉🔬
We are currently advertising two #PhD projects to study the #evolution, #development and #genomics of sexual traits in stalk-eyed flies.
Deadline for applying is Wednesday, January 7, 2026. Get in touch for more info!
We are currently advertising two #PhD projects to study the #evolution, #development and #genomics of sexual traits in stalk-eyed flies.
Deadline for applying is Wednesday, January 7, 2026. Get in touch for more info!
Reposted by Leo
Differential nucleosome organization in human interphase and metaphase chromosomes https://www.biorxiv.org/content/10.1101/2025.11.11.687715v1
November 13, 2025 at 3:34 AM
Differential nucleosome organization in human interphase and metaphase chromosomes https://www.biorxiv.org/content/10.1101/2025.11.11.687715v1
Reposted by Leo
Genome assemblies of Sargassum algae by Kim et al. suggest TE-driven genome size expansion, gene duplications, and salicylic acid responses, which could be mechanisms enabling adaptation to intertidal stress.
🔗 doi.org/10.1093/gbe/evaf084
#genome #TEsky #algae
🔗 doi.org/10.1093/gbe/evaf084
#genome #TEsky #algae
May 22, 2025 at 5:38 AM
Genome assemblies of Sargassum algae by Kim et al. suggest TE-driven genome size expansion, gene duplications, and salicylic acid responses, which could be mechanisms enabling adaptation to intertidal stress.
🔗 doi.org/10.1093/gbe/evaf084
#genome #TEsky #algae
🔗 doi.org/10.1093/gbe/evaf084
#genome #TEsky #algae
Reposted by Leo
Fast females, slow males: accelerated ageing and reproductive senescence in Drosophila melanogaster females across diverse social environments url: academic.oup.com/evlett/artic...
Fast females, slow males: accelerated ageing and reproductive senescence in Drosophila melanogaster females across diverse social environments
Abstract. Females and males typically differ in lifespan, patterns of ageing, and reproduction. General explanations for variation in the magnitude of this
academic.oup.com
November 9, 2025 at 8:25 PM
Fast females, slow males: accelerated ageing and reproductive senescence in Drosophila melanogaster females across diverse social environments url: academic.oup.com/evlett/artic...
Reposted by Leo
Happy to share the results of a long-haul post-doc project, now online @science.org, aiming at understanding the rules of transgeneration epigenetic inheritance over TEs in plants and its extent and impact in nature. More below!
doi.org/10.1126/scie...
doi.org/10.1126/scie...
Transposable elements are vectors of recurrent transgenerational epigenetic inheritance
DNA methylation loss at transposable elements (TEs) can affect neighboring genes and be epigenetically inherited in plants, yet the determinants and significance of this additional system of inheritan...
doi.org
September 18, 2025 at 6:35 PM
Happy to share the results of a long-haul post-doc project, now online @science.org, aiming at understanding the rules of transgeneration epigenetic inheritance over TEs in plants and its extent and impact in nature. More below!
doi.org/10.1126/scie...
doi.org/10.1126/scie...
Reposted by Leo
Are humans really the only rational animals? Our NEW PAPER 🎉 out in @science.org suggests otherwise! In a large collaboration led with my joint first author @hanna-schleihauf.bsky.social, we show that “Chimpanzees rationally revise their beliefs” 🧵
Chimpanzees rationally revise their beliefs
The selective revision of beliefs in light of new evidence has been considered one of the hallmarks of human-level rationality. However, tests of this ability in other species are lacking. We examined...
www.science.org
October 30, 2025 at 6:23 PM
Are humans really the only rational animals? Our NEW PAPER 🎉 out in @science.org suggests otherwise! In a large collaboration led with my joint first author @hanna-schleihauf.bsky.social, we show that “Chimpanzees rationally revise their beliefs” 🧵
Reposted by Leo
A new release of RepeatMasker is available. This version fixes a bug introduced in 4.2.1 that impacted the handling of poly-A tails and the naming of LINE annotations. See repeatmasker.org for more release details.
RepeatMasker Home Page
repeatmasker.org
November 3, 2025 at 6:07 PM
A new release of RepeatMasker is available. This version fixes a bug introduced in 4.2.1 that impacted the handling of poly-A tails and the naming of LINE annotations. See repeatmasker.org for more release details.
Perdemos um gênio gentil.
November 3, 2025 at 4:31 PM
Perdemos um gênio gentil.
Reposted by Leo
My awesome grad student Shashank and I wrote this paper trying to look at broader patterns of HT in TEs. HT is happening everywhere! DNA transposons jump further than other classes! www.biorxiv.org/content/10.1...
Recent horizontal transfer of transposable elements in Drosophila
Transposable elements (TEs) are genetic elements also known as "jumping genes" that increase their copy numbers within a host through various mechanisms of transposition. TEs can also move between spe...
www.biorxiv.org
October 31, 2025 at 3:58 PM
My awesome grad student Shashank and I wrote this paper trying to look at broader patterns of HT in TEs. HT is happening everywhere! DNA transposons jump further than other classes! www.biorxiv.org/content/10.1...
Reposted by Leo
From 2020:
Genome size evolution: towards new model systems for old questions.
royalsocietypublishing.org/doi/10.1098/...
Genome size evolution: towards new model systems for old questions.
royalsocietypublishing.org/doi/10.1098/...
Genome size evolution: towards new model systems for old questions | Proceedings of the Royal Society B: Biological Sciences
Genome size (GS) variation is a fundamental biological characteristic; however, its
evolutionary causes and consequences are the topic of ongoing debate. Whether GS is
a neutral trait or one subject t...
royalsocietypublishing.org
October 28, 2025 at 11:26 PM
From 2020:
Genome size evolution: towards new model systems for old questions.
royalsocietypublishing.org/doi/10.1098/...
Genome size evolution: towards new model systems for old questions.
royalsocietypublishing.org/doi/10.1098/...
Reposted by Leo
(1/9) Join us in Bern, Switzerland (8–11 Feb 2026) for our EMBO Workshop on Molecular Mechanisms of Selfish Elements and Strategies!
Organized with Tanja Schwander, Laura Ross (@laurarossevo.bsky.social) and Axel Imhof.
meetings.embo.org/event/26-sel...
#EMBOselfishElements #EMBOevents
Organized with Tanja Schwander, Laura Ross (@laurarossevo.bsky.social) and Axel Imhof.
meetings.embo.org/event/26-sel...
#EMBOselfishElements #EMBOevents
Molecular mechanisms of selfish elements and strategies
Certain genes, chromosomes, organelles, or entire sets of chromosomes can bias their transmission to the next generation, propagating themselves at the expense of the rest of the genome. Referred to …
meetings.embo.org
October 27, 2025 at 5:37 PM
(1/9) Join us in Bern, Switzerland (8–11 Feb 2026) for our EMBO Workshop on Molecular Mechanisms of Selfish Elements and Strategies!
Organized with Tanja Schwander, Laura Ross (@laurarossevo.bsky.social) and Axel Imhof.
meetings.embo.org/event/26-sel...
#EMBOselfishElements #EMBOevents
Organized with Tanja Schwander, Laura Ross (@laurarossevo.bsky.social) and Axel Imhof.
meetings.embo.org/event/26-sel...
#EMBOselfishElements #EMBOevents
Reposted by Leo
Evidence from 14 research funding programmes confirms that early winners tend to keep winning (Matthew effect). But the idea that an early setback makes you stronger later doesn’t replicate widely.
buff.ly/UEtcRd4
buff.ly/UEtcRd4
October 24, 2025 at 8:21 AM
Evidence from 14 research funding programmes confirms that early winners tend to keep winning (Matthew effect). But the idea that an early setback makes you stronger later doesn’t replicate widely.
buff.ly/UEtcRd4
buff.ly/UEtcRd4
Reposted by Leo
New preprint!
Causes and consequences of sex-chromosome turnovers in Diptera https://www.biorxiv.org/content/10.1101/2025.10.24.684443v1
October 25, 2025 at 7:30 PM
New preprint!
Reposted by Leo
A short-necked sauropodomorph from a new Triassic locality in Argentina shows sign of the neck extension that characterised its larger, later cousins.🧪👇
www.nature.com/articles/s41...
www.nature.com/articles/s41...
A long-necked early dinosaur from a newly discovered Upper Triassic basin in the Andes - Nature
Discovery of a nearly complete skeleton of Huayracursor jaguensis, a Carnian dinosaur from the Northern Precordillera Basin in northwestern Argentina provides evidence of increased body size and early...
www.nature.com
October 23, 2025 at 1:18 PM
A short-necked sauropodomorph from a new Triassic locality in Argentina shows sign of the neck extension that characterised its larger, later cousins.🧪👇
www.nature.com/articles/s41...
www.nature.com/articles/s41...
Não é possível uma coisa dessa
October 21, 2025 at 4:04 AM
Não é possível uma coisa dessa
Reposted by Leo
In a new paper led by Jiaqi Yang we trace the distribution of Denisovan introgressed DNA in ancient modern human genomes over time.
www.cell.com/current-biol...
www.cell.com/current-biol...
An early East Asian lineage with unexpectedly low Denisovan ancestry
Yang et al. study Denisovan ancestry in ancient and present-day humans. In contrast
to other East Asians, genomic comparisons suggest that the Jomon derived most of their
ancestry from a deep lineage ...
www.cell.com
October 20, 2025 at 7:39 PM
In a new paper led by Jiaqi Yang we trace the distribution of Denisovan introgressed DNA in ancient modern human genomes over time.
www.cell.com/current-biol...
www.cell.com/current-biol...
Reposted by Leo
New preprint up with collaborators Jianguo Lu, @mpodobnik.bsky.social, Uwe Irion, Braedan McCluskey, John Postlethwait and others. New Danio genomes, evolution and pigment pattern variation. Long time in the making www.biorxiv.org/content/10.1...
October 19, 2025 at 10:28 PM
New preprint up with collaborators Jianguo Lu, @mpodobnik.bsky.social, Uwe Irion, Braedan McCluskey, John Postlethwait and others. New Danio genomes, evolution and pigment pattern variation. Long time in the making www.biorxiv.org/content/10.1...
Reposted by Leo
Reposted by Leo
1/9 Thrilled to share that our paper, “Origin of Ewing sarcoma by embryonic reprogramming of neural crest to mesoderm,” is now published in @cp-cellreports.bsky.social! @amatrudalab.bsky.social @crumplab.bsky.social www.cell.com/cell-reports...
Origin of Ewing sarcoma by embryonic reprogramming of neural crest to mesoderm
Using a zebrafish genetic model of Ewing sarcoma, Vasileva et al. provide evidence
for a neural crest origin of the disease. These findings offer new insight into how
a single oncogenic fusion can hij...
www.cell.com
October 9, 2025 at 9:06 PM
1/9 Thrilled to share that our paper, “Origin of Ewing sarcoma by embryonic reprogramming of neural crest to mesoderm,” is now published in @cp-cellreports.bsky.social! @amatrudalab.bsky.social @crumplab.bsky.social www.cell.com/cell-reports...