Carl Tryggers postdoctoral fellowship available

A two-year Carl Tryggers Postdoctoral Fellowship is now available to work on supergene evolution in the Slotte lab at Stockholm University.

Project overview

Supergenes control complex phenotypic polymorphisms under balancing selection through the preservation of advantageous allelic combinations. Distyly in flowering plants is an iconic example of a multi-trait polymorphism controlled by a supergene. Recent advances in genomics have facilitated the sequencing and characterization of supergenes, including distyly supergenes. We have recently presented the first full sequencing and characterization of the distyly supergene in Linum tenue (Gutiérrez-Valencia et al. 2022, Current Biology). Building on this discovery, the postdoc will study the evolution and loss of the Linum distyly supergene in a comparative framework. High-quality genome assemblies, population genomic data and expression data for a larger set of Linum species are already available.


The main responsibility of the Carl Tryggers postdoctoral fellow will be to lead and conduct evolutionary genomic analyses of the evolution of the distyly supergene and its repeated loss. Depending on the applicant’s interests, there are also opportunities to study the genomic impact of mating system shifts associated with breakdown of distyly in Linum. For this purpose, the postdoc will be able to draw on high-quality genome assemblies of several Linum species as well as population genomic and expression data generated as part of the ERC-funded project SuperGenE.

Thrum (left) and pin (right) morphs of Linum tenue, illustrating distyly in Linum.
Thrum (left) and pin (right) floral morphs of Linum tenue, illustrating distyly in Linum. The postdoctoral fellow will investigate the molecular evolution of the supergene that governs distyly in multiple Linum species.


The position is for two years, funded by a stipend from the Carl Tryggers foundation. According to the rules of the Tryggers foundation, the PhD degree must be less than six years old, and applicants must receive final approval by the foundation.

Applicants are required to hold a PhD, preferably in evolutionary genetics, population genetics, comparative genomics, bioinformatics, or related topics. The candidate should have proven experience in genomic analyses, ideally with an evolutionary genetic focus. Candidates should have strong writing skills, be able to work independently as well as together with team members, and exhibit drive and motivation for the research task. Excellent proficiency in English (the working language of the group) is required.


The Carl Tryggers postdoctoral fellow will be based in the international research group of Prof. Tanja Slotte. We offer a friendly working environment and access to training in both subject-specific skills and soft skills. The group is part of an active population genetics and genomics research community at Stockholm University and has full access to facilities for molecular genetic lab work and plant work, as well as high-performance computing infrastructure. Finally, the campus is located four metro stops from the centre of Stockholm, one of the most beautiful and dynamic European cities.


To apply for the Carl Tryggers postdoctoral stipend, please send a pdf with the following directly to Dr. Tanja Slotte (tanja.slotte@su.se), in an email with the subject header ”Carl Tryggers postdoc 22”:

  1. A cover letter describing why you are interested in the project and position and what makes you suitable for the project.
  2. A CV, including contact details and personal data, and contact information for 2-3 reference persons and a list of publications.
  3. A copy of your PhD diploma (if you have not yet defended, you can still apply, but please include a letter from your supervisor indicating your planned PhD defense date in that case).

The fellowship will remain open until filled.

For informal questions about this fellowship, please contact Prof. Tanja Slotte directly at tanja.slotte@su.se.

General information on opportunities for PhD students and post-docs

If you find our research topics interesting and would like to join the lab, you are welcome to contact Tanja Slotte directly. For prospective postdocs, there is an opportunity to apply for a postdoctoral fellowship from the Wenner-Gren foundation (deadline in October) and from the Carl Tryggers foundation (deadline in May) every year. Other funding sources for postdocs include EMBO LTF fellowships (evaluated twice a year) and Marie-Curie fellowships. PhD student positions will be officially announced through Stockholm University.

Undergraduate students and master students

If you are interested in evolutionary genomics and want to develop your skills in population genetic analyses, then we may have a project for you! Please contact Tanja Slotte if you find our research interesting and would like to discuss opportunities for a Master/degree project.

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