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We found males carrying a driving X chromosome are not at a disadvantage during sperm competition in 𝘛. 𝘋𝘢𝘭𝘮𝘢𝘯𝘯𝘪. This suggests that polyandry does not limit the spread of drive in this species, a situation which is rare among the 𝘋𝘪𝘱𝘵𝘦𝘳𝘢.

Just had the BEST NEWS that my first (first author) manuscript has been accepted in #BiologyLetters !!!! Pending an official tweet when it’s out, but for now a little celebratory tweet will do 🎉 (these guys are celebrating)

i feel like i am disturbing them

My first paper 📝 “Meiotic drive adaptive testes enlargement during early development in the stalk-eyed fly” has just been published with open access!! Huge thanks to my co-authors Andrew Pomiankowski Lara Meade and JTW. Read the below 🧵 to find out more! #BiologyLetters

Really cool work on meiotic drive and testes enlargement during development by Sasha Bradshaw #popgroup56 UCL

(2/4) The paper is dedicated to my supervisor and co-author Gail Schofield, who tragically died during revision of this work. I am so very grateful that I was able to work with Gail. She was and is a true inspiration as a woman at the forefront of marine ecology.

(3/4) Thanks to our funders and partners ZSL LIB ULPGC Shark Conservation Fund Oceanário @CanBio20 Save Our Seas Wereld Natuur Fonds Ocean Tracking Network Natural Environment Research Council Queen Mary University of London Lancaster Environment Centre The London NERC DTP QM_SBBS ZSLMarine ZSL Conservation

(4/4) Follow Angel Shark Project here and on Instagram to find out more about this paper and the ongoing acoustic tracking work!

So excited to see your work!! Amazing stuff from Lucy Mead ZSL Angel Shark Project 😇🦈

Meiotic drive does not impede success in sperm competition in the stalk-eyed fly, Teleopsis dalmanni academic.oup.com/evolut/article… A unique example in which destruction of half the sperm makes no difference in sperm competition Sadé Bates Sasha Bradshaw @fcamus

The first paper from my PhD is out in Evolution Journal: doi.org/10.1093/evolut…! Thanks to everyone who made it possible. Read the 🧵 below to discover how male stalk-eyed flies can cope with a drive gene that destroys half their sperm. #evolution #genedrive #spermcompetition

How can this be? We know from Bradshaw et al. (2022) that drive males invest in growing bigger testes. This enables them to compensate for sperm loss and transfer the same number of viable sperm to the female reproductive tract as non-drive males (Meade et al., 2019, 2020).

Our paper provides strong evidence that non-drive males do not outperform drive males in sperm competition. Perhaps other species should be investigated for evidence of mitigation of drive fertility costs…

huge slay from mr grub

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My new pre-print is out! 📝On the energetic and #metabolic costs of harbouring #meioticdrive in stalk-eyed flies with a selfish X-linked SR distorter 🧬 Andrew Pomiankowski @fcamus