Sex chromosome evolution Dates 12-16 October 2026 To foster international participation, this course will be held online

Registrations are now open for the 2nd edition of the Sex Chromosome Evolution ONLINE course with @astridboehne.bsky.social & @idarolti.bsky.social in October (12-16)

www.physalia-courses.org/courses-work...

#SexChromosomes #Evolution #Bioinformatics

🚨Hiring a postdoc!

Are you interested in #evolutionarygenomics, #sexchromosomes, #transposableelements & #Sexspecific #recombination in 🐸🧬?

Join my lab @vubrussel.bsky.social
🔹 @fwovlaanderen.bsky.social funded up to 3y
🔹 Deadline 10/3/2026
🔹 Start ~1/6/2026

Apply 👉: jobs.vub.be/job/Elsene-P...

Really enjoyed @thomaslenormand.bsky.social explain the unified theory today at @popgroup2026.bsky.social in Lille: inspiring, thought-provoking, and very timely 🧠🤯✨

Reposting his post on the paper here: highly recommended read!

#evolution #sexchromosomes #largeXeffects #haldane'srule #speciation

Very excited to share that our FWO research grant @fwovlaanderen.bsky.social has been awarded! 🎉🧬🐸

Over the next 4 years, our Lab at @vubrussel.bsky.social will study the evolutionary and genetic drivers of rapid sex chromosome turnover in 🐸

Grateful to #FWO for the support!

#SexChromosomes

Person presenting a scientific seminar

Presentation slide showing a phylogenetic tree

Many thanks to Michail Rovatsos of @sciencecharles.bsky.social for his guest seminar about sex chromosomes in reptiles! Fascinating discussions about how they compare to our model plants are to follow 🐍🌿 #SexChromosomes #DosageCompensation

Diagnostic dilemma: Woman had her twin brother's XY chromosomes — but only in her blood Doctors discovered a woman had "blood chimerism" after examining the chromosomes of cells from different parts of her body.

Woman had her twin brother's XY chromosomes---but only in her blood. Her skin cell karyotype was XX. Doctors identified her condition as chimerism, in which the body contains at least two different sets of DNA across different cells. #sexchromosomes
buff.ly/TDgdKlo

Diagnostic dilemma: Woman had her twin brother's XY chromosomes — but only in her blood Doctors discovered a woman had "blood chimerism" after examining the chromosomes of cells from different parts of her body.

Woman had her twin brother's XY chromosomes, but only in her blood. Her skin cell karyotype was XX. Doctors identified her condition as chimerism, in which the body contains at least two different sets of DNA across different cells. #sexchromosomes
buff.ly/TDgdKlo

Cyprichromis microlepidotus, Lake Tanganyika cichlid in the aquarium.

#LIBresearch: New work on cichlid fishes shows how different sex-chromosome systems drive males & females to evolve distinct gene-activity patterns - shaping how their traits diverge.
→ doi.org/10.1111/mec....

@astridboehne.bsky.social

©Adobe Stock, David

#Genomics #SexChromosomes

Diagnostic dilemma: Woman had her twin brother's XY chromosomes — but only in her blood Doctors discovered a woman had "blood chimerism" after examining the chromosomes of cells from different parts of her body.

Woman had her twin brother's XY chromosomes — but only in her blood. Her skin cell karyotype was XX. Doctors identified her condition as chimerism, in which the body contains at least two different sets of DNA across different cells. #sexchromosomes
buff.ly/d6KMNBu

Excited that our new collaborative work on Amazonian frogs with giant meiotic chains of 8–12 😲 #SexChromosomes now is out in @commsbio.nature.com! 🐸🧬

Investigating the evolution of large meiotic rings of multiple X and Y chromosomes in two Leptodactylus species
🔗 www.nature.com/articles/s42...

Hundreds of genes act differently in the brains of men and women | The-14 Hundreds of genes act differently in male and female brains, shaping development, behaviour and risk of diseases like Alzheimer’s & Parkinson’s from early life.

Hundreds of genes act differently in the brains of men and women
#Science #Brain #Genetics #Neuroscience #BrainResearch #MenAndWomen #Biology #Health #SexChromosomes #Alzheimers #Parkinsons #Male #Female #Woman #Man #HumanBrain #SexDifferences
the-14.com/hundreds-of-...

Proud to have presented two poster presentations at #ESEB Congress in #Barcelona about our work on the hybridising and rapidly evolving spined loaches (Cobitis)🐟🧬

#ESEB2025 #conference #Catalonia #Spain #evolution #fish #loach #sexchromosomes #hybridisation #genomeanalysis

Join us! Still places left :-) we look forward to meet you with @idarolti.bsky.social and talk about #sexchromosomes

Sex chromosome evolution Dates 6-10 October 2025 To foster international participation, this course will be held online

Join our online course on Sex Chromosome Evolution (6–10 Oct) with @astridboehne.bsky.social & @idarolti.bsky.social to gain hands-on experience in genomic and transcriptomic analyses.
www.physalia-courses.org/courses-work...

#SexChromosomes #GenomeEvolution #Transcriptomics #ComparativeGenomics

Comparison of non-synonymous/synonymous (dN/dS) ratios shows little evidence for a faster-Z effect in Furcifer chameleons after controlling for gene-specific evolutionary rates Abstract. The faster-X/Z effect hypothesis states that genes linked to X/Z chromosomes should accumulate mutations faster than autosomal genes. Although fa

My first first-author article is finally here! Happy to share with you a little piece of the puzzle in the evolution of sex chromosomes in chameleons of the genus Furcifer. You can read the full text at academic.oup.com/jhered/advan...

#reptiles #chameleons #evolution #sexchromosomes

My first poster presentation about the evolution of sex chromosomes in chameleons on the #ESEB Congress in Prague 2022 🤓🦎🧬

#eseb2022 #phd #phdstudent #conference #science #biology #evolution #sexchromosomes #chameleons #reptiles #prague #praha #czechrepublic

A single theory for the evolution of sex chromosomes and the two rules of speciation Sex chromosomes are involved in three major empirical patterns: (i) Y (or W) chromosomes are often nonrecombining and degenerate; (ii) heterogametic offspring (XY or ZW) from interspecific crosses are...

Interested to know more about a new theory relating the #evolution of #sexchromosomes to the rules of #speciation? Check out this paper that we published with Denis Roze in the last issue of #Science. PDF here: www.science.org/stoken/autho...

🐸🧬Lab new preprint @biorxivpreprint.bsky.social👇

Gene duplication, translocation & molecular evolution of Dmrt1 and related sex-determining genes in anurans
➡️ doi.org/10.1101/2025...

Dive into #MasterSexDetermining genes evolution & sex chr. turnover in 🐸✨

Comments welcome!

#SexChromosomes

🚨Fully-funded #PhD opportunity in #EvoBio at
@vubrussel.bsky.social

🧬 Genetics, evolution of frog #SexChromosomes across Eurasia & the Caribbean
🌍 Fieldwork + teaching in 🇧🇪
📢 Dutch fluency required

Apply👉: jobs.vub.be/job/Elsene-D...

ERC-lab: www.wmalab.com

#PhDposition @phdvoice.bsky.social

Okuno et al. assemble male genomes of three spiny rat species, tracing Y chromosome loss and gene translocation. Authors show that segmental duplications and rearrangements enabled preservation of Y-linked genes on the X.

🔗 doi.org/10.1093/molbev/msaf102

#molbio #evobio #sexchromosomes

🐋 #whales

Researcher Carla Crossman was doing genetic analysis of skin samples from #rightwhales, and found that one individual had #XXY #sexchromosomes

I think this is really cool, and don't know why more people aren't talking about it

Investigation of sex determination in African cichlids reveals lack of fixed sex chromosomes in wild populations Abstract. Sex chromosomes are theorized to stop recombining and become fixed, yet many taxa show ambiguous genomic signals of sex consistent with either co

#Sexchromosomes evolve rapidly in old #cichlid lineages and one chromosome appears several times but with different degrees of sex-association

@astridboehne.bsky.social @leibnizlib.bsky.social

doi.org/10.1093/jeb/...

Sex chromosomes never disappoint! Amazing work by @shrewgod.bsky.social @ruthfcarden.bsky.social and collaborators on the importance of #SexChromosomes for reconstructing past demographic events! Wow!!!🦌

#sexchromosomes #evolution #sheltering

Chromatin environment-dependent effects of DOT1L on gene expression in male germ cells - Communications Biology Epigenomic and transcriptomic analyses reveal that, during mouse spermatogenesis, the H3K79 methyltransferase DOT1L has opposite effects on autosomal and X-linked gene expression depending on local ch...

Super happy to see our latest work on the opposite effects of DOT1L on gene expression published !
#chromatin #DOT1L #sexchromosomes #malegermcells

www.nature.com/articles/s42...

Genotypes and gene markers. Did you pay attention in biology class?
#genetics #genes #genotypes #sexchromosomes #genemarker #sry

Join us this summer in #Beijing for #SMBE2025! 🌏👉

@zhouqi1982.bsky.social and I are thrilled to have Tatiana Giraud as the invited speaker! We welcome abstracts on #Evolution of #SexChromosomes, #SexDetermination.

A great opportunity to discuss your research! @official-smbe.bsky.social 🧬🐸🐟🦎🐭🪲🦋🐞🌱🍄

things I like to end the week: the first gel picture of a student in my lab, testing new primers on a (new to us) species - with bands!! The right size! Only 2 (out of 10) missing! YAY! #spiders #sexchromosomes #STAYTUNED