The rise of polyploids during environmental upheaval: Cell www.cell.com/cell/fulltex...
The rise of polyploids during environmental upheaval
From the dating of 132 ancient whole-genome duplication events across 470 angiosperms,
paleopolyploidization events cluster around pivotal periods of environmental upheaval
and extinction, notably the...
www.cell.com
May 8, 2026 at 2:42 PM
The rise of polyploids during environmental upheaval: Cell www.cell.com/cell/fulltex...
Final version of this out now in that beautiful Amnat typesetting! www.journals.uchicago.edu/doi/10.1086/...
December 6, 2024 at 11:56 PM
Final version of this out now in that beautiful Amnat typesetting! www.journals.uchicago.edu/doi/10.1086/...
The Rise of Polyploids During Environmental Catastrophes https://www.biorxiv.org/content/10.1101/2024.11.22.624806v1
The Rise of Polyploids During Environmental Catastrophes https://www.biorxiv.org/content/10.1101/2024.11.22.624806v1
Polyploidy, or whole-genome duplication (WGD), both a strong evolutionary and ecological force and a
www.biorxiv.org
November 23, 2024 at 10:32 PM
The Rise of Polyploids During Environmental Catastrophes https://www.biorxiv.org/content/10.1101/2024.11.22.624806v1
Chromosomal breakage in Arabidopsis thaliana neo-polyploids occurs preferentially at candidate fragile sites colocalized with ancient genome rearrangements https://www.biorxiv.org/content/10.64898/2026.09.21.753295v1
September 27, 2026 at 3:30 AM
Chromosomal breakage in Arabidopsis thaliana neo-polyploids occurs preferentially at candidate fragile sites colocalized with ancient genome rearrangements https://www.biorxiv.org/content/10.64898/2026.09.21.753295v1
💧Water shapes the fate of polyploid plants! In Dianthus broteri, higher polyploids thrive in dry conditions, while lower ploidy levels win when water is abundant, thanks to key functional physiological traits.🌼#Polyploidy buff.ly/alH3z1m
August 14, 2025 at 8:00 AM
💧Water shapes the fate of polyploid plants! In Dianthus broteri, higher polyploids thrive in dry conditions, while lower ploidy levels win when water is abundant, thanks to key functional physiological traits.🌼#Polyploidy buff.ly/alH3z1m
#PhD Position: Interested in the evolutionary and ecological impacts of whole genome duplication?
Join Dr. Tia-Lynn Ashman @drtialynn.bsky.social
and I at the U. of Pittsburgh, to test what drives the competitive outcomes between diploids and #polyploids
Details: shorturl.at/nQ8UW
Join Dr. Tia-Lynn Ashman @drtialynn.bsky.social
and I at the U. of Pittsburgh, to test what drives the competitive outcomes between diploids and #polyploids
Details: shorturl.at/nQ8UW
October 20, 2025 at 4:17 PM
#PhD Position: Interested in the evolutionary and ecological impacts of whole genome duplication?
Join Dr. Tia-Lynn Ashman @drtialynn.bsky.social
and I at the U. of Pittsburgh, to test what drives the competitive outcomes between diploids and #polyploids
Details: shorturl.at/nQ8UW
Join Dr. Tia-Lynn Ashman @drtialynn.bsky.social
and I at the U. of Pittsburgh, to test what drives the competitive outcomes between diploids and #polyploids
Details: shorturl.at/nQ8UW
Slowly updating my website to a lab site and having way too much fun.
GEEP lab launching in Spring 2027!
GEEP lab launching in Spring 2027!
July 9, 2026 at 3:10 PM
Slowly updating my website to a lab site and having way too much fun.
GEEP lab launching in Spring 2027!
GEEP lab launching in Spring 2027!
6/46 WGD, like multicellularity, evolved many times in history (see www.nature.com/articles/nrg... by @yvdp.bsky.social et al.), driving species radiations and innovations (like at the roots of vertebrates and angiosperms). In fact, most species either are polyploids or bear signs of ancient WGDs.
The evolutionary significance of polyploidy - Nature Reviews Genetics
Polyploidy occurs frequently but is usually detrimental to survival; thus, few polyploids survive in the long term. Here, evidence linking the short-term evolutionary success of polyploids to environm...
www.nature.com
March 5, 2025 at 11:00 PM
6/46 WGD, like multicellularity, evolved many times in history (see www.nature.com/articles/nrg... by @yvdp.bsky.social et al.), driving species radiations and innovations (like at the roots of vertebrates and angiosperms). In fact, most species either are polyploids or bear signs of ancient WGDs.
Unconditional pass for GBO today!! One (major) step closer to my doctorate! #womeninstem #ecology #polyploids #urbanecology
January 23, 2025 at 3:47 AM
Unconditional pass for GBO today!! One (major) step closer to my doctorate! #womeninstem #ecology #polyploids #urbanecology
Prof. Kirsten Bomblies presents at @ibmcp.bsky.social Friday’s seminar about wonderful #polyploidy. Polyploids resists stress well, but newly formed polyploid species have important drawbacks like genomic instability. She presents her work about the molecular mechanisms to overcome these problems.
February 7, 2025 at 11:46 AM
Prof. Kirsten Bomblies presents at @ibmcp.bsky.social Friday’s seminar about wonderful #polyploidy. Polyploids resists stress well, but newly formed polyploid species have important drawbacks like genomic instability. She presents her work about the molecular mechanisms to overcome these problems.
Great new preprint reviewing variant calling for polyploids by Alyssa Phillips (of @jrossibarra.bsky.social lab): ecoevorxiv.org/repository/v...
March 15, 2024 at 1:33 PM
Great new preprint reviewing variant calling for polyploids by Alyssa Phillips (of @jrossibarra.bsky.social lab): ecoevorxiv.org/repository/v...
#Postdoc Position: Interested in the evolutionary and ecological impacts of whole genome duplication?
Join Dr. Tia-Lynn Ashman @drtialynn.bsky.social and I at the U. of Pittsburgh, to test what drives the competitive outcomes between diploids and #polyploids
Details: shorturl.at/EHOeJ
Join Dr. Tia-Lynn Ashman @drtialynn.bsky.social and I at the U. of Pittsburgh, to test what drives the competitive outcomes between diploids and #polyploids
Details: shorturl.at/EHOeJ
May 22, 2025 at 4:27 PM
#Postdoc Position: Interested in the evolutionary and ecological impacts of whole genome duplication?
Join Dr. Tia-Lynn Ashman @drtialynn.bsky.social and I at the U. of Pittsburgh, to test what drives the competitive outcomes between diploids and #polyploids
Details: shorturl.at/EHOeJ
Join Dr. Tia-Lynn Ashman @drtialynn.bsky.social and I at the U. of Pittsburgh, to test what drives the competitive outcomes between diploids and #polyploids
Details: shorturl.at/EHOeJ
Me: Please for the love of god just do meiosis normally!
Resynthesized polyploids:
Resynthesized polyploids:
August 30, 2023 at 4:20 AM
Me: Please for the love of god just do meiosis normally!
Resynthesized polyploids:
Resynthesized polyploids:
Very pleased to see our work on spatial popgen theory in polyploids out in Amnat, looking forward to the final version coming soon. Lots of cool stuff in here, I think! 🧪
doi.org/10.1086/733334
doi.org/10.1086/733334
The genetic consequences of range expansion and its influence on diploidization in polyploids | The American Naturalist: Vol 0, No ja
doi.org
October 1, 2024 at 2:53 PM
Very pleased to see our work on spatial popgen theory in polyploids out in Amnat, looking forward to the final version coming soon. Lots of cool stuff in here, I think! 🧪
doi.org/10.1086/733334
doi.org/10.1086/733334
Next up in the #AppsPlantSci's upcoming #Polyploidy issue:
Alyssa's paper on variant calling in polyploids has been published!
bsapubs.onlinelibrary.wiley.com/doi/10.1002/...
Alyssa's paper on variant calling in polyploids has been published!
bsapubs.onlinelibrary.wiley.com/doi/10.1002/...
July 18, 2024 at 11:32 AM
Next up in the #AppsPlantSci's upcoming #Polyploidy issue:
Alyssa's paper on variant calling in polyploids has been published!
bsapubs.onlinelibrary.wiley.com/doi/10.1002/...
Alyssa's paper on variant calling in polyploids has been published!
bsapubs.onlinelibrary.wiley.com/doi/10.1002/...
Polyploidization in diatoms accelerates adaptation to warming www.nature.com/articles/s41... #jcampubs 🌊
Polyploidization in diatoms accelerates adaptation to warming - Nature Climate Change
The authors obtained large-volume individuals of diatom cultures under thermal stress. These polyploids (having more than two sets of chromosomes) are shown to rapidly adapt to high temperatures, high...
www.nature.com
October 24, 2025 at 5:42 AM
Polyploidization in diatoms accelerates adaptation to warming www.nature.com/articles/s41... #jcampubs 🌊
🌿🧬 Ancient polyploidy events cluster around major environmental crises like the K-Pg extinction, PETM & Eocene-Oligocene Transition. Polyploids may have better survival odds during rapid climate change.
Lessons from 132 dated WGD events in 470 angiosperms #plantscience
www.cell.com/cell/fulltex...
Lessons from 132 dated WGD events in 470 angiosperms #plantscience
www.cell.com/cell/fulltex...
The rise of polyploids during environmental upheaval
From the dating of 132 ancient whole-genome duplication events across 470 angiosperms,
paleopolyploidization events cluster around pivotal periods of environmental upheaval
and extinction, notably the...
www.cell.com
June 15, 2026 at 5:57 AM
🌿🧬 Ancient polyploidy events cluster around major environmental crises like the K-Pg extinction, PETM & Eocene-Oligocene Transition. Polyploids may have better survival odds during rapid climate change.
Lessons from 132 dated WGD events in 470 angiosperms #plantscience
www.cell.com/cell/fulltex...
Lessons from 132 dated WGD events in 470 angiosperms #plantscience
www.cell.com/cell/fulltex...
Chromosomal breakage in Arabidopsis thaliana neo-polyploids occurs preferentially at candidate fragile sites colocalized with ancient genome rearrangements https://www.biorxiv.org/content/10.64898/2026.09.21.753295v1
September 27, 2026 at 3:30 AM
Chromosomal breakage in Arabidopsis thaliana neo-polyploids occurs preferentially at candidate fragile sites colocalized with ancient genome rearrangements https://www.biorxiv.org/content/10.64898/2026.09.21.753295v1
📢 Viewpoint in New Phyt. on polyploid establishment!
Key take-homes🧵
1. In contrast to earlier hypotheses that pollinators can help new polyploids establish, we suggest that pollinators mainly prevent polyploid establishment because outcrossing increases the strength of minority cytotype exclusion.
Key take-homes🧵
1. In contrast to earlier hypotheses that pollinators can help new polyploids establish, we suggest that pollinators mainly prevent polyploid establishment because outcrossing increases the strength of minority cytotype exclusion.
February 11, 2025 at 5:08 PM
📢 Viewpoint in New Phyt. on polyploid establishment!
Key take-homes🧵
1. In contrast to earlier hypotheses that pollinators can help new polyploids establish, we suggest that pollinators mainly prevent polyploid establishment because outcrossing increases the strength of minority cytotype exclusion.
Key take-homes🧵
1. In contrast to earlier hypotheses that pollinators can help new polyploids establish, we suggest that pollinators mainly prevent polyploid establishment because outcrossing increases the strength of minority cytotype exclusion.
Super cool stuff: "The genetic consequences of range expansion and its influence on diploidization in polyploids"
The genetic consequences of range expansion and its influence on diploidization in polyploids
bioRxiv - the preprint server for biology, operated by Cold Spring Harbor Laboratory, a research and educational institution
www.biorxiv.org
October 22, 2023 at 6:21 AM
Super cool stuff: "The genetic consequences of range expansion and its influence on diploidization in polyploids"
Today’s marine biogeography thought: the first brittle stars to reach remote oceanic islands are Amphipholis squamata & Ophiactis savignyi, both polyploids! Super-dispersers!
November 29, 2024 at 11:01 PM
Today’s marine biogeography thought: the first brittle stars to reach remote oceanic islands are Amphipholis squamata & Ophiactis savignyi, both polyploids! Super-dispersers!
Filip Kolar killing it in one of our departmental seminars. You're consuming polyploids all the time!
November 28, 2024 at 1:05 PM
Filip Kolar killing it in one of our departmental seminars. You're consuming polyploids all the time!