University of Oulu

Mattila T.M., Laenen B., Slotte T. (2020) Population Genomics of Transitions to Selfing in Brassicaceae Model Systems. In: Dutheil J. (eds) Statistical Population Genomics. Methods in Molecular Biology, vol 2090. Humana, New York, NY.

Population genomics of transitions to selfing in brassicaceae model systems

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Author: Mattila, Tiina M.1; Laenen, Benjamin2; Slotte, Tanja2
Organizations: 1Department of Ecology and Genetics, University of Oulu, Oulu, Finland
2Department of Ecology, Environment, and Plant Sciences, Science for Life Laboratory, Stockholm University, Stockholm, Sweden
Format: article
Version: published version
Access: open
Online Access: PDF Full Text (PDF, 0.5 MB)
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Language: English
Published: Humana Press, 2020
Publish Date: 2020-05-27


Many plants harbor complex mechanisms that promote outcrossing and efficient pollen transfer. These include floral adaptations as well as genetic mechanisms, such as molecular self-incompatibility (SI) systems. The maintenance of such systems over long evolutionary timescales suggests that outcrossing is favorable over a broad range of conditions. Conversely, SI has repeatedly been lost, often in association with transitions to self-fertilization (selfing). This transition is favored when the short-term advantages of selfing outweigh the costs, primarily inbreeding depression. The transition to selfing is expected to have major effects on population genetic variation and adaptive potential, as well as on genome evolution. In the Brassicaceae, many studies on the population genetic, gene regulatory, and genomic effects of selfing have centered on the model plant Arabidopsis thaliana and the crucifer genus Capsella. The accumulation of population genomics datasets have allowed detailed investigation of where, when and how the transition to selfing occurred. Future studies will take advantage of the development of population genetics theory on the impact of selfing, especially regarding positive selection. Furthermore, investigation of systems including recent transitions to selfing, mixed mating populations and/or multiple independent replicates of the same transition will facilitate dissecting the effects of mating system variation from processes driven by demography.

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Series: Methods in molecular biology
ISSN: 1064-3745
ISSN-E: 1940-6029
ISSN-L: 1064-3745
ISBN: 978-1-0716-0199-0
ISBN Print: 978-1-0716-0198-3
Volume: 2090
Pages: 269 - 287
DOI: 10.1007/978-1-0716-0199-0_11
Host publication: Statistical Population Genomics
Host publication editor: Dutheil, Julien Y.
Type of Publication: A3 Book chapter
Field of Science: 1181 Ecology, evolutionary biology
Copyright information: © The Author(s) 2020. This chapter is licensed under the terms of the Creative Commons Attribution 4.0 International License (, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made. The images or other third party material in this chapter are included in the chapter's Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the chapter's Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder.