These are public posts tagged with #Polyploidy. You can interact with them if you have an account anywhere in the fediverse.
Early-career researchers
Apply by Friday 2 May for a funded place at our Workshop 'Decoding whole genome doubling: Insights from evolution, development and disease' organised by Renata Basto and Zuzana Storchova.
https://www.biologists.com/workshops/decoding-nov-2025/
#Workshop #Biology #Research #Collaboration #Connections #Networking #Genome #Evolution #Development #Disease #Polyploidy
Coppage et al. identify four ancient polyploidy events with unusually high duplicate gene retention. Elevated gene conversion and delayed diploidization suggest a distinct class of paleopolyploid genomes.
Solving the #evolutionary puzzle of #polyploidy: How #genome duplication shapes #adaptation
https://phys.org/news/2025-01-evolutionary-puzzle-polyploidy-genome-duplication.html
Evolution is the basis of biological diversity, driven…
Phys.orgWhile we were examining cell cycle dynamics in the male accessory gland, we noticed dynamic cell cycles also taking place in the neighboring maturing Ejaculatory Duct. This work is the result of our investigation into this less well-characterized tissue, essential for reproduction. Please share with those interested in #polyploidy, and #cell cycle responses to #hormonal signaling.
#Evolutionary biologists investigate how #plant cold specialists can #adapt to the environment.
#climate_change #genomics #polyploidy #Cochlearia
https://phys.org/news/2024-07-evolutionary-biologists-cold-specialists-environment.html
Plant cold specialists like the spoonworts have adapted…
phys.orgInteresting paper. They see different DNA repair strategies in postmitotic neurons and induction of cell cycle genes in neurons with Cas9 induced DSBs. This is consistent with our work that DNA damage may influence cell cycle gene expression and #polyploidy in the brain. (Nandakumar et al 2020). Still so much to be worked out. Neuronal DNA repair reveals strategies to influence CRISPR editing outcomes | bioRxiv
Genome editing is poised to revolutionize treatment…
www.biorxiv.orgStill open PhD position
#Job #phd #Evolution #Genomics #Cancer #TransCan #MarBiol #Polyploidy #PopGen #France
Here is an offer for a PhD (ERC HYPERCAN project) on the evolution of a transmissible cancer, with a focus on hyperploidy variations:
euraxess.ec.europa.eu/jobs/230401
Please boost
#Job #phd #Evolution #Genomics #Cancer #TransCan #MarBiol #Polyploidy #France
Here is an offer for a PhD (ERC HYPERCAN project) on the evolution of a transmissible cancer, with a focus on hyperploidy variations:
https://euraxess.ec.europa.eu/jobs/230401
Please boost
Transmissible cancers are fascinating biological entities…
euraxess.ec.europa.euIf anyone would like to chat to me about applying for a MSCA fellowship please get in touch #bioinformatics #molecular_evolution #genomics #polyploidy #transposons #population_genomics
https://marie-sklodowska-curie-actions.ec.europa.eu/actions/postdoctoral-fellowships?
The information provided on this page is a summary…
Marie Skłodowska-Curie Actions#Polyploidy in vegetables: Exploring #genetics for #crop #evolution and #breeding success.
https://phys.org/news/2024-04-polyploidy-vegetables-exploring-genetics-crop.html
A research team has elucidated the role of polyploidy…
phys.orgSweet success: Researchers crack #sugarcane's complex #genetic code.
#genomics #agriculture #polyploidy
https://phys.org/news/2024-03-sweet-success-sugarcane-complex-genetic.html
Modern hybrid sugarcane is one of the most harvested…
phys.orgOur latest preprint on using machine learning to infer WGDs in Ks plots is now up at biorxiv! Check it out below!
Ancient whole-genome duplication--previous genome duplication…
www.biorxiv.orgA new preprint from the lab on the distribution of ancient whole-genome duplications across the angiosperm phylogeny. Great work led by PhD student Michael McKibben! We used a variety of methods and different species trees to infer and place WGDs across the phylogeny. Overall, similar results to our past work, but species tree had a large impact on WGD inferences. Check it out here:
#Polyploidy and long-distance dispersal jointly shape global #species #diversification in #yellowcress, finds study.
#Rorippa #plastids #phylogenomics
https://phys.org/news/2023-12-polyploidy-long-distance-dispersal-jointly-global.html
Long-distance dispersal (LDD) is one of the most important…
phys.orgPolyploidy used to be abnormal. Something alarming that showed up in tumors. But somehow also natural (think livers) and widespread in the natural world (think plants and speciation). NOW we find it has a natural function in wound-healing. Cool. #science #complex #polyploidy #stressors
Diving into the intricacies of cellular biology often…
news.prai.coI am fascinated by the recent evidence showing that Polyplody may grant evolutionary advantages in the presence of drastic fitness changes (e.g. cataclysms):
https://www.science.org/content/article/cells-extra-genomes-may-help-tissues-respond-injuries-species-survive-cataclysms.
One option is that extra chromosomes may increase connectivity of gene regulatory networks--- fascinating work from van de Peer on that note: https://doi.org/10.1101/2023.04.28.538696, https://doi.org/10.1371/journal.pone.0220257.
The results are similar to ours a long time ago with RNA Editing , where we experimented with drastic fitness changes (simulated cataclysms) and emergence of memory: https://doi.org/10.1162/evco.2007.15.3.253, https://doi.org/10.1007/978-3-540-74913-4_7.
RNA Editing, we started arguing long ago, also adds additional regulatory variety and proves advantageous in drastic fitness changes---though RNA editing works by adding more variants, not greater number of regulatory possibilities (network connectivity) as it is hypothesized for polyploidy. Maybe this explains why the latter is maladaptive in stable fitness landscapes, whereas RNA Editing often isn't?
#Evolution #EvolutionarySystems #Polyploidy #Fitness #GenomeComplexity #Gemome
@ScienceMagazine Polyploidy is far more common in animals than many people realize. For those interested in looking at the variety of cell types that are #polyploid across species please check out our #Polyploidy Atlas : www.polyploidy.dev
New from my lab: Allopolyploid plants do not occupy larger ranges or harsher conditions compared with their progenitors
https://onlinelibrary.wiley.com/doi/10.1002/ece3.10231
The idea that polyploids occupy harsher environments than diploids was proposed nearly century ago, and is now widely accepted. However, the data supporting this idea is very limited, and there are many examples of studies showing contrasting results.
We developed a dataset of 123 polyploids with known diploid progenitors, and show that there is no support for the hypothesis that the polyploids have larger or more extreme ranges than the diploids.
#Polyploidy certainly has a strong impact on #evolution, but it's clearly complex and context dependent. Not something so general and straightforward as 'polyploids tolerate broader conditions, and so have bigger ranges'.
Number of #DNA copies influences the #cell #death process that shapes organs during #embryonic development: Study.
During embryonic development, the programmed death…
phys.orgWhat do we have here?
The plant ploidy database.
by Keren Halabi, Anat Shafir and Itay Mayrose (Dept. of Molecular Biology and Ecology of Plants at Tel Aviv Uni; https://www.tau.ac.il/~itaymay/).
fresh in New Phytologist
Articlehttps://shorturl.at/jnBXZ
DataBasehttp://ploidb.tau.ac.il/
#polyploidy #plants #genomics