Petr Nguyen
@petrnguyen.bsky.social
Chromosome biology, evolutionary genetics, sex chromosomes, holocentric chromosomes, meiosis, butterflies,...
Reposted by Petr Nguyen
Hospodářská, @petrnguyen.bsky.social et al. investigated genome size and karyotype in Polyommatus and Lysandra butterflies, rejecting polyploidy to confirm karyotypic diversification via chromosome fragmentation in Polyommatinae butterflies.
🔗 doi.org/10.1093/gbe/evaf157
#genome #evolution
🔗 doi.org/10.1093/gbe/evaf157
#genome #evolution
September 22, 2025 at 10:01 AM
Hospodářská, @petrnguyen.bsky.social et al. investigated genome size and karyotype in Polyommatus and Lysandra butterflies, rejecting polyploidy to confirm karyotypic diversification via chromosome fragmentation in Polyommatinae butterflies.
🔗 doi.org/10.1093/gbe/evaf157
#genome #evolution
🔗 doi.org/10.1093/gbe/evaf157
#genome #evolution
Reposted by Petr Nguyen
(1/6) 🦋 We are thrilled to announce the release of the 1,000th reference genome of Lepidoptera species found in Europe!
This goal was reached with the release of Stenoptilia islandicus, also known as the mountain plume moth.
Read the story below!👇🏽
This goal was reached with the release of Stenoptilia islandicus, also known as the mountain plume moth.
Read the story below!👇🏽
September 13, 2025 at 5:35 PM
(1/6) 🦋 We are thrilled to announce the release of the 1,000th reference genome of Lepidoptera species found in Europe!
This goal was reached with the release of Stenoptilia islandicus, also known as the mountain plume moth.
Read the story below!👇🏽
This goal was reached with the release of Stenoptilia islandicus, also known as the mountain plume moth.
Read the story below!👇🏽
Reposted by Petr Nguyen
PhD position in Butterfly Conservation Genomics at the Czech Academy of Sciences. Applications due by Sept 12, 2025. Requires a Master's degree. Details: https://www.prf.jcu.cz/en. Apply: [email protected]. #phd
FoS - Přírodovědecká fakulta JU
FoS - Přírodovědecká fakulta JU
www.prf.jcu.cz
August 25, 2025 at 1:02 AM
PhD position in Butterfly Conservation Genomics at the Czech Academy of Sciences. Applications due by Sept 12, 2025. Requires a Master's degree. Details: https://www.prf.jcu.cz/en. Apply: [email protected]. #phd
Reposted by Petr Nguyen
With #eseb2025 coming to a close, it is time to start making plans for 2026. Interested in the interface of evolution 🧬 and ecology 🌳? Come to our #ExE conference hosted by @uniexecec.bsky.social in beautiful #Cornwall. Leave your email address at tinyurl.com/EvolxEcol to join our mailing list!
August 22, 2025 at 1:32 PM
With #eseb2025 coming to a close, it is time to start making plans for 2026. Interested in the interface of evolution 🧬 and ecology 🌳? Come to our #ExE conference hosted by @uniexecec.bsky.social in beautiful #Cornwall. Leave your email address at tinyurl.com/EvolxEcol to join our mailing list!
Reposted by Petr Nguyen
As expected, the scientific content of the meeting is being truly outstanding, we will have over 600 talks and over 1000 posters on display. Plenty to choose from and many opportunities for unexpected eye-opening discoveries for anyone. #eseb2025
Front row seat to the future of evolutionary biology 🌱 #ESEB2025
August 20, 2025 at 6:23 AM
As expected, the scientific content of the meeting is being truly outstanding, we will have over 600 talks and over 1000 posters on display. Plenty to choose from and many opportunities for unexpected eye-opening discoveries for anyone. #eseb2025
Another paper on polyommatine blue butterflies just published in @genomebiolevol.bsky.social. Blues have high chromosome numbers associated with increased diversification and their karyotypes reveal strategies to maintain genomic integrity amidst profound karyotypic changes doi.org/10.1093/gbe/...
August 12, 2025 at 6:54 PM
Another paper on polyommatine blue butterflies just published in @genomebiolevol.bsky.social. Blues have high chromosome numbers associated with increased diversification and their karyotypes reveal strategies to maintain genomic integrity amidst profound karyotypic changes doi.org/10.1093/gbe/...
Excited to share our new paper in #MolEcol on sex chromosome evolution in African killifish! 🐟 A great collaboration with @alexandrsember.bsky.social . We uncovered ≥4 sex chromosome turnovers across Nothobranchius spp. using cytogenetics & genomics.
👉 onlinelibrary.wiley.com/doi/10.1111/...
👉 onlinelibrary.wiley.com/doi/10.1111/...
July 24, 2025 at 9:36 AM
Excited to share our new paper in #MolEcol on sex chromosome evolution in African killifish! 🐟 A great collaboration with @alexandrsember.bsky.social . We uncovered ≥4 sex chromosome turnovers across Nothobranchius spp. using cytogenetics & genomics.
👉 onlinelibrary.wiley.com/doi/10.1111/...
👉 onlinelibrary.wiley.com/doi/10.1111/...
Reposted by Petr Nguyen
New paper out now in #ProcB @royalsocietypublishing.org
We explored how sex loss shapes gene expression patterns by comparing sexual & asexual aphid lineages 🧬🪲
🔑 #SexualAntagonism #Parthenogenesis #Asexuality #Transcriptomics #SexBiasedExpression #SexualDimorphism
🔗 doi.org/10.1098/rspb...
We explored how sex loss shapes gene expression patterns by comparing sexual & asexual aphid lineages 🧬🪲
🔑 #SexualAntagonism #Parthenogenesis #Asexuality #Transcriptomics #SexBiasedExpression #SexualDimorphism
🔗 doi.org/10.1098/rspb...
The release of sexual conflict after sex loss is associated with evolutionary changes in gene expression | Proceedings of the Royal Society B: Biological Sciences
Sexual conflict can arise because males and females, while sharing most of their genome,
can have different phenotypic optima. Sexually dimorphic gene expression may help
reduce conflict, but the expr...
doi.org
January 30, 2025 at 9:52 AM
New paper out now in #ProcB @royalsocietypublishing.org
We explored how sex loss shapes gene expression patterns by comparing sexual & asexual aphid lineages 🧬🪲
🔑 #SexualAntagonism #Parthenogenesis #Asexuality #Transcriptomics #SexBiasedExpression #SexualDimorphism
🔗 doi.org/10.1098/rspb...
We explored how sex loss shapes gene expression patterns by comparing sexual & asexual aphid lineages 🧬🪲
🔑 #SexualAntagonism #Parthenogenesis #Asexuality #Transcriptomics #SexBiasedExpression #SexualDimorphism
🔗 doi.org/10.1098/rspb...
Another grant application submitted. The toll of sleep deprivation near the finish line feels heavier and heavier as I get older. 🤦🥱
January 22, 2025 at 9:33 AM
Another grant application submitted. The toll of sleep deprivation near the finish line feels heavier and heavier as I get older. 🤦🥱
Register for the International Workshop on Molecular Biology and Genetics of Lepidoptera! Let us meet on Crete! 😁
The 12th international Workshop on molecular biology and genetics of the Lepidoptera
REGISTRATION NOW OPEN We are delighted to invite you to join us at the Orthodox Academy of Crete, set just outside the lovely Cretan village Kolymbari, for a stimulating and enriching event. With 150 ...
events.gwdg.de
January 7, 2025 at 12:07 AM
Register for the International Workshop on Molecular Biology and Genetics of Lepidoptera! Let us meet on Crete! 😁
Reposted by Petr Nguyen
Our miRNA story is now in @science.org ! We found a microRNA, not a protein, that finally solved a long-standing evolutionary mystery of wing coloration in butterflies and moths. (1/n)
www.science.org/doi/10.1126/...
www.science.org/doi/10.1126/...
A microRNA is the effector gene of a classic evolutionary hotspot locus
In Lepidoptera (butterflies and moths), the genomic region around the gene cortex is a “hotspot” locus, repeatedly implicated in generating intraspecific melanic wing color polymorphisms across 100 mi...
www.science.org
December 5, 2024 at 9:36 PM
Our miRNA story is now in @science.org ! We found a microRNA, not a protein, that finally solved a long-standing evolutionary mystery of wing coloration in butterflies and moths. (1/n)
www.science.org/doi/10.1126/...
www.science.org/doi/10.1126/...
Reposted by Petr Nguyen
Sex-biased gene expression under sexually antagonistic and sex-limited selection https://www.biorxiv.org/content/10.1101/2024.11.29.622017v1
Sex-biased gene expression under sexually antagonistic and sex-limited selection https://www.biorxiv.org/content/10.1101/2024.11.29.622017v1
Sex differences in gene expression are ubiquitous, evolve quickly, and are expected to underlie phen
www.biorxiv.org
December 3, 2024 at 3:33 PM
Sex-biased gene expression under sexually antagonistic and sex-limited selection https://www.biorxiv.org/content/10.1101/2024.11.29.622017v1
Reposted by Petr Nguyen
2 New #PhD positions in my institution to study #biodiversity and interactions #ants and #beetles in the tropics!
December 4, 2024 at 1:10 PM
2 New #PhD positions in my institution to study #biodiversity and interactions #ants and #beetles in the tropics!
@odedrechavi.bsky.social is here! I am so relieved. 😆So hello new place in the sky!
November 30, 2024 at 6:49 PM
@odedrechavi.bsky.social is here! I am so relieved. 😆So hello new place in the sky!