Biology Thursday seminar 15th May: Sonia Celestini: Exploring convergent adaptation to serpentine soil in three Brassicaceae species
Dear colleagues,
Biology Thursday seminar continues 15th of May, 12:15, in zoom (link below), with
Sonia Celestini, Charles University, Prague:
"Exploring convergent adaptation to serpentine soil in three Brassicaceae species"
The highly stressful serpentine soil provides a natural laboratory for studying repeated adaptation to extreme environments. While shared phenotypic traits in serpentine-adapted plants are well known, the extent of shared genetic mechanisms remains unclear. In this study, we explored local and repeated serpentine adaptation in two understudied Alyssum species (A. gmelinii and A. spruneri). We combined transplant experiments, genome sequencing, and scans for selection to identify candidate genes. Our results reveal parallel serpentine adaptation at both phenotypic and genomic levels, involving genes for ion transport, nutrient and water uptake, and reproduction. Importantly, we also found convergence in adaptive genes and pathways with A. arenosa, a species from a different Brassicaceae tribe. Together, this suggests that genetic responses to serpentine stress can be conserved even across ~20 million years of evolutionary divergence.
Sonia will also be available for discussion after her talk. If you would like to book a short discussion with her, please contact Tiina (tiina.mattila@oulu.fi)
See you online,
Heikki
Heikki Helanterä is inviting you to a scheduled Zoom meeting. Join Zoom Meeting https://oulu.zoom.us/j/62917763539?pwd=WENZRy9Bb3NlSzlyeVlVamJ4RHR5Zz09
Meeting ID: 629 1776 3539 Passcode: 166151
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Join by SIP 62917763539@109.105.112.236 . 62917763539@109.105.112.235
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Join by H.323 . 109.105.112.236 . 109.105.112.235
Meeting ID: 629 1776 3539 Passcode: 166151
Dear all,
There are still free slots (15 minutes each) in the discussion schedule of this week's Biology Thursday seminar speaker, Sonia Celestini (available 13:15-14:00; later times can be negotiated). Sonia is a PhD student from The Charles University, Prague, Czech Republic, and she has practical experience working with genomics of adaptation and polyploid population genetics. This is a great opportunity to share knowledge and experience in a friendly environment, warmly recommended for PhD students particularly. If you want to book a discussion slot, please send me an email.
Best wishes, Tiina
PhD Tiina M. Mattila
Academy Research Fellow Ecology and Genetics University of Oulu
Email: tiina.mattila@oulu.fi Phone: +358503550268
________________________________ From: Heikki Helanterä Heikki.Helantera@oulu.fi Sent: Monday, May 12, 2025 12:27 PM To: Biolaitos(biolaitos@lists.oulu.fi) biolaitos@lists.oulu.fi; bioposti@lists.oulu.fi bioposti@lists.oulu.fi; 'biology-students@lists.oulu.fi' biology-students@lists.oulu.fi; ants@lists.oulu.fi ants@lists.oulu.fi Subject: [Bioposti] Biology Thursday seminar 15th May: Sonia Celestini: Exploring convergent adaptation to serpentine soil in three Brassicaceae species When: Thursday, May 15, 2025 12:00 PM-1:00 PM. Where: https://oulu.zoom.us/j/62917763539?pwd=WENZRy9Bb3NlSzlyeVlVamJ4RHR5Zz09
Dear colleagues,
Biology Thursday seminar continues 15th of May, 12:15, in zoom (link below), with
Sonia Celestini, Charles University, Prague:
"Exploring convergent adaptation to serpentine soil in three Brassicaceae species"
The highly stressful serpentine soil provides a natural laboratory for studying repeated adaptation to extreme environments. While shared phenotypic traits in serpentine-adapted plants are well known, the extent of shared genetic mechanisms remains unclear. In this study, we explored local and repeated serpentine adaptation in two understudied Alyssum species (A. gmelinii and A. spruneri). We combined transplant experiments, genome sequencing, and scans for selection to identify candidate genes. Our results reveal parallel serpentine adaptation at both phenotypic and genomic levels, involving genes for ion transport, nutrient and water uptake, and reproduction. Importantly, we also found convergence in adaptive genes and pathways with A. arenosa, a species from a different Brassicaceae tribe. Together, this suggests that genetic responses to serpentine stress can be conserved even across ~20 million years of evolutionary divergence.
Sonia will also be available for discussion after her talk. If you would like to book a short discussion with her, please contact Tiina (tiina.mattila@oulu.fi)
See you online,
Heikki
Heikki Helanterä is inviting you to a scheduled Zoom meeting. Join Zoom Meeting https://oulu.zoom.us/j/62917763539?pwd=WENZRy9Bb3NlSzlyeVlVamJ4RHR5Zz09
Meeting ID: 629 1776 3539 Passcode: 166151
---
Join by SIP 62917763539@109.105.112.236 . 62917763539@109.105.112.235
---
Join by H.323 . 109.105.112.236 . 109.105.112.235
Meeting ID: 629 1776 3539 Passcode: 166151
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Heikki Helanterä -
Tiina Mattila