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Ewan Flintham

@ewanflintham.bsky.social
142 followers 143 following 1 posts

Evolutionary biologist interested sexual selection, sexual conflict and mating systems.

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Reposted by Ewan Flintham
Charles Mullon @charlesmullon.bsky.social · 19/08/2026
With @ewanflintham.bsky.social @thomaslesaffre.bsky.social and @sarperotto.bsky.social we've been thinking about what theory tells us about sexual antagonism (SA = when selection favours different trait values in females and males). Our review is here: tinyurl.com/ct5mk8mv
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Reposted by Ewan Flintham
Charles Mullon @charlesmullon.bsky.social · 21/05/2026
New paper with the brilliant @ewanflintham.bsky.social How fast does recombination suppression evolve among sex chromosomes? We show that even weak sexual antagonism (so hard to detect) makes this fast, often via inversions fixing on X/Z depending on mating system: doi.org/10.1093/evle...
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Reposted by Ewan Flintham
Evolution Letters @evolletters.bsky.social · 25/05/2026
Why do sex chromosomes stop recombining? New models show even weak sexual antagonism can strongly drive recombination suppression, with mating systems shaping the outcome. By @ewanflintham.bsky.social and @charlesmullon.bsky.social doi.org/10.1093/evle...
doi.org
Sexual antagonism, mating systems, and recombination suppression on sex chromosomes
Abstract. The suppression of recombination between sex chromosomes is a widespread feature of genetic sex determination systems. Competing explanations for
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Reposted by Ewan Flintham
Thomas Lesaffre 🌱 @thomaslesaffre.bsky.social · 18/02/2026
🌺 New preprint out with John Pannell and @charlesmullon.bsky.social ! 🌺 We show that selection broadly favours a form of plasticity for the selfing rate where individuals adjust their mating behaviour to their condition — their overall vitality owing to their genetic background and environment. ⤵️
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Ewan Flintham @ewanflintham.bsky.social · 19/08/2025
Will be presenting this work today at #eseb2025 poster P02.184, come by if interested about whether we should expect recombination suppression on sex chromosomes should evolve through modifiers on the X or the Y
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Reposted by Ewan Flintham
Roman Stetsenko @romanstet.bsky.social · 12/05/2025
New paper out with Thomas Brazier, Denis Roze and Sylvain Glémin!
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Reposted by Ewan Flintham
bioRxiv Evolutionary Biology @biorxiv-evobio.bsky.social · 19/05/2025
Sexual antagonism, mating systems, and recombination suppression on sex chromosomes www.biorxiv.org/content/10.1101/202…
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Reposted by Ewan Flintham
Charles Mullon @charlesmullon.bsky.social · 22/01/2025
1/7 Very happy to share our latest paper on the joint evolution of separate sexes and sexual dimorphism in @jevbio.bsky.social, led by @thomaslesaffre.bsky.social and in collaboration with John Pannell at @dee-unil.bsky.social 🔗 doi.org/10.1093/jeb/voae136
doi.org
The joint evolution of separate sexes and sexual dimorphism
Abstract. Dioecious plants are frequently sexually dimorphic. Such dimorphism, which reflects responses to selection acting in opposite directions for male
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Charles Mullon @charlesmullon.bsky.social · 24/01/2025
1/7 Sexual antagonism arises when males and females face different selection pressures for a trait influenced by shared genes. This is thought to drive balancing selection and maintain genetic polymorphism. We challenge this view in our recent paper : 🔗 doi.org/10.1093/evlett/qrae059
doi.org
The maintenance of genetic polymorphism underlying sexually antagonistic traits
Abstract. Selection often favors different trait values in males and females, leading to genetic conflicts between the sexes when traits have a shared gene
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Reposted by Ewan Flintham
Evolution Letters @evolletters.bsky.social · 23/01/2025
The maintenance of genetic polymorphism underlying sexually antagonistic traits doi.org/10.1093/evle... Now in @evolletters.bsky.social by Ewan Flintham et al.
doi.org
The maintenance of genetic polymorphism underlying sexually antagonistic traits
Abstract. Selection often favors different trait values in males and females, leading to genetic conflicts between the sexes when traits have a shared gene
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