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Cod
Cod is one of many species that shows high genetic variation within the species itself.
Photo: Bo Johannesson
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Connectivity, local adaptation and chromosomal rearrangements in the coastal zone

Science and Information Technology

Welcome to this part of Tjärnö´s internal seminar series, a series of lectures from Tjärnö during the spring. Pierre De Wit, Senior Lecturer at the Department of Biology and Environmental Sciences, will talk about the latest findings on genetic connectivity and the role it may play in how species adapt to changes in the environment and climate. You can follow the seminar on Zoom.

Lecture,
Seminar,
Webinar
Date
5 Mar 2026
Time
15:15 - 16:00
Location
Webinar/Tjärnö marina laboratorium
Additional info
Follow the seminar on Zoom
Participants
Pierre De Wit, senior lecturer at the Department of Biology and Environmental Sciences
Good to know
The seminar is free of charge. It´s in English. You can follow it on Zoom.
Organizer
Tjärnö Marine Laboratory

The flow of genetic material between geographic locations - genetic connectivity - is important to understand, as well-connected populations are more resilient to environmental and human stressors than small isolated ones. 

Although, a lack of connectivity also allows for locally adapted populations to evolve, which could be useful under a changing climate in the future. 

This balance has been known for a long time, yet with new whole-genome sequence information it has recently been highlighted that even seemingly well-connected populations can diverge into locally adapted ecotypes if parts of the genome resists gene flow.

Chromosomal rearrangements have arisen as one of the major mechanisms allowing this to happen. In this seminar, Pierre Raoul de Wit will summarise recent work on connectivity in the Skagerrak Sea, and show examples of how chromosomal rearrangements can be involved in local adaptation in coastal species that are otherwise well-mixed.   

Follow the seminar on Zoom: https://gu-se.zoom.us/j/65860288974

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