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Genetic diversity and evolution in eukaryotic phytoplankton : Revelations from population genetic studies

Rengefors, Karin LU ; Kremp, Anke; Reusch, Thorsten B.H. and Wood, A. Michelle (2017) In Journal of Plankton Research 39(2). p.165-179
Abstract

Eukaryotic phytoplankton exhibit an enormous species richness, displaying a range of phylogenetic, morphological and physiological diversity. Yet, until recently, very little was known about the diversity, genetic variation and evolutionary processes within species and populations. An approach to explore this diversity and to understand evolution of phytoplankton is to use population genetics as a conceptual framework and methodology. Here, we discuss the patterns, processes and questions that population genetic studies have revealed in eukaryotic phytoplankton. First, we describe the main biological processes generating genetic variation. We specifically discuss the importance of life-cycle complexity for genetic and phenotypic... (More)

Eukaryotic phytoplankton exhibit an enormous species richness, displaying a range of phylogenetic, morphological and physiological diversity. Yet, until recently, very little was known about the diversity, genetic variation and evolutionary processes within species and populations. An approach to explore this diversity and to understand evolution of phytoplankton is to use population genetics as a conceptual framework and methodology. Here, we discuss the patterns, processes and questions that population genetic studies have revealed in eukaryotic phytoplankton. First, we describe the main biological processes generating genetic variation. We specifically discuss the importance of life-cycle complexity for genetic and phenotypic diversity and consider how such diversity can be maintained during blooms when rapid asexual proliferation dominates. Next, we explore how genetic diversity is partitioned over time and space, with a focus on the processes shaping this structure, in particular selection and genetic exchange. Our aim is also to show how population genetics can be used to make inferences about realized dispersal and sexual recombination, as these processes are so difficult to study directly. Finally, we highlight important open questions and suggest promising avenues for future studies that will be made possible by new sequencing technologies.

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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
evolution, genetic differentiation, genetic diversity, phytoplankton, population genetics
in
Journal of Plankton Research
volume
39
issue
2
pages
15 pages
publisher
Oxford University Press
external identifiers
  • scopus:85016994927
  • wos:000397979400001
ISSN
0142-7873
DOI
10.1093/plankt/fbw098
language
English
LU publication?
yes
id
4b67fca6-191c-43ab-8d07-faa7aac7944e
date added to LUP
2017-05-03 09:58:52
date last changed
2017-09-18 13:33:54
@article{4b67fca6-191c-43ab-8d07-faa7aac7944e,
  abstract     = {<p>Eukaryotic phytoplankton exhibit an enormous species richness, displaying a range of phylogenetic, morphological and physiological diversity. Yet, until recently, very little was known about the diversity, genetic variation and evolutionary processes within species and populations. An approach to explore this diversity and to understand evolution of phytoplankton is to use population genetics as a conceptual framework and methodology. Here, we discuss the patterns, processes and questions that population genetic studies have revealed in eukaryotic phytoplankton. First, we describe the main biological processes generating genetic variation. We specifically discuss the importance of life-cycle complexity for genetic and phenotypic diversity and consider how such diversity can be maintained during blooms when rapid asexual proliferation dominates. Next, we explore how genetic diversity is partitioned over time and space, with a focus on the processes shaping this structure, in particular selection and genetic exchange. Our aim is also to show how population genetics can be used to make inferences about realized dispersal and sexual recombination, as these processes are so difficult to study directly. Finally, we highlight important open questions and suggest promising avenues for future studies that will be made possible by new sequencing technologies.</p>},
  author       = {Rengefors, Karin and Kremp, Anke and Reusch, Thorsten B.H. and Wood, A. Michelle},
  issn         = {0142-7873},
  keyword      = {evolution,genetic differentiation,genetic diversity,phytoplankton,population genetics},
  language     = {eng},
  month        = {03},
  number       = {2},
  pages        = {165--179},
  publisher    = {Oxford University Press},
  series       = {Journal of Plankton Research},
  title        = {Genetic diversity and evolution in eukaryotic phytoplankton : Revelations from population genetic studies},
  url          = {http://dx.doi.org/10.1093/plankt/fbw098},
  volume       = {39},
  year         = {2017},
}