Projekt per år
Genetic characteristics of populations can have substantial impacts on the adaptive potential of a species. Species are heterogeneous, often defined by variability at a range of scales including at the genetic, individual and population level. Using microsatellite genotyping, we characterize patterns underlying the genetic heterogeneity in marine macroalga Fucus vesiculosus, with a particular focus on two forms: attached and free-living. Here we demonstrate that sympatric populations representing the two forms display marked differences in characteristics of reproduction and genetic diversity. Asexual reproduction was ubiquitous in the free-living form despite being almost entirely absent in the attached form, while signals of polyploidy were common in both forms despite the distinct reproductive modes. Gene flow within and between the forms differed, with barriers to gene flow occurring between forms at various spatial scales due to the reproductive modes employed by individuals of each form. The divergent genetic characteristics of F. vesiculosus demonstrate that intraspecific differences can influence the properties of populations with consequential effects on the whole ecosystem. The differing genetic patterns and habitat requirements of the two forms define separate but closely associated ecological entities that will likely display divergent responses to future changes in environmental conditions.
|Tidskrift||Ecology and Evolution|
|Status||Publicerad - 20 sep. 2022|
- 1181 Ekologi, evolutionsbiologi
- 2 Aktiv
FunkVeg: The origin and regeneration of free-living populations of Fucus vesiculosus in the northern Baltic Sea
Preston, R., Blomster, J., Seppä, P. & Schagerström, E.
Stokholm University, University of Helsinki, Societas pro Fauna and Flora Fennica, Stockholm University, Walter and Andrée de Nottbeck Foundation
01/01/2018 → 31/03/2023
FunkVeg-The functional role of vegetation in the Baltic Sea
Gustafsson, C., Leskinen, E. & Blomster, J.
01/04/2016 → …
Eight microsatellite genotyping loci for attached and free-living Fucus vesiculosus from the Baltic Sea
Preston, R. (Skapad av), Blomster, J. (Skapad av), Schagerstrom, E. (Skapad av) & Seppä, P. (Skapad av), Figshare, 2 sep. 2022