#polyploidy — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #polyploidy, aggregated by home.social.
-
8-May-2026
#Plants survived the dinosaur-killing asteroid by duplicating genomes -
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
-
While 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
-
Interesting 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
-
Still 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/230401Please boost
-
If 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? -
#Genomic analysis sheds light on how #seagrasses conquered the sea
https://phys.org/news/2024-01-genomic-analysis-seagrasses-conquered-sea.html#Seagrass #genomes reveal ancient #polyploidy and adaptations to the marine environment https://www.nature.com/articles/s41477-023-01608-5
"Seagrasses evolved from their #freshwater ancestors only 3x. To do this required specialized ecological tolerance to high #salinity, lower light, a wide range of temperature tolerances, #underwater carbon capture, different #pathogen defense, structural flexibility and underwater #pollination"
-
Our latest preprint on using machine learning to infer WGDs in Ks plots is now up at biorxiv! Check it out below!
-
A 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 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
-
I 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
-
CW: 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'.
-
Our latest paper on polyploid population genetics is now out at Genetics! Led by Paul Blischak with Ryan Gutenkunst and Mathews Sajan we develop models in dadi to infer the demographic history of polyploid species. Check it out here: https://academic.oup.com/genetics/advance-article-abstract/doi/10.1093/genetics/iyad107/7190362?redirectedFrom=fulltext
-
Interested in genome size, #polyploidy research of plants?
Listen & see the insightful presentation of the brilliant #sDiv synthesis postdoc @Sreetama_Bhadra 👇
---
RT @Sreetama_Bhadra
I was delighted to present my work yesterday in the #polyploidy #webinar organized by @BarkerLab .. it’s up in #youtube for anyone who wants to know the relation between #genomesize #trait #diversification specially in @Palms
@idiv @IPS_PalmSociety
…
https://twitter.com/Sreetama_Bhadra/status/1643894623012519937 -
The recording of today's #PolyploidWebinar featuring Elise Parey and @benjaminblonder is now up on youtube!
-
🌱DEADLINE EXTENDED TO 2/15/23!🌱
#AJB & #AppsPlantSci are accepting proposals for joint special issues, “Twice as Nice: New techniques and discoveries in #polyploid biology”! https://bit.ly/3NziNQf
#Polyploidy #Botany #Evolution #Ecology #Genomics #Bioinformatics
-
The next #PolyploidWebinar is on Wednesday, February 1, at 11 AM PST. This month's webinar features Elise Parey talking about her work on rediploidization in fishes and @benjaminblonder discussing triploid aspens! Zoom links will go out later today - more details here to sign up if you are not already! https://www.barkerlab.net/polyweb
-
The recording of today's #PolyploidWebinar featuring David Wickell and Adam Session is now up on youtube! Check it out!
#Polyploidy #Genomes #Genomics #Evolution #WGD #Diploidization #Fractionation #Kmers
-
The next #PolyploidWebinar is on Wednesday, January 11 at 11 AM PST! We will feature talks on polyploid genomes from David Wickell and Adam Sessions. If you are not already signed up, you can sign up at the link here: https://www.barkerlab.net/polyweb
#PolyploidWebinar #ferns #WGD #Polyploidy #KMers #Evolution #Genomics
-
The recording of this week's #PolyploidWebinar featuring Brian Husband and Hannes Becher is now up on youtube! Check it out here! #Polyploidy #kmers #genomics #phenotype #evolution
https://youtu.be/Ka1QyaT6ypk -
The next #PolyploidWebinar will be next Wednesday, December 7, at 11 AM Pacific Time. Join us for two great talks from Brian Husband and Hannes Becher! If you are not signed up already, you can sign up here to join us: https://www.barkerlab.net/polyweb