Rapid diversification of a free-living protist is driven by adaptation to climate and habitat
(2024) In Current Biology 34(1). p.6-105- Abstract
Microbial eukaryotes (protists) have major functional roles in aquatic ecosystems, including the biogeochemical cycling of elements as well as occupying various roles in the food web. Despite their importance for ecosystem function, the factors that drive diversification in protists are not known. Here, we aimed to identify the factors that drive differentiation and, subsequently, speciation in a free-living protist, Synura petersenii (Chrysophyceae). We sampled five different geographic areas and utilized population genomics and quantitative trait analyses. Habitat and climate were the major drivers of diversification on the local geographical scale, while geography played a role over longer distances. In addition to conductivity and... (More)
Microbial eukaryotes (protists) have major functional roles in aquatic ecosystems, including the biogeochemical cycling of elements as well as occupying various roles in the food web. Despite their importance for ecosystem function, the factors that drive diversification in protists are not known. Here, we aimed to identify the factors that drive differentiation and, subsequently, speciation in a free-living protist, Synura petersenii (Chrysophyceae). We sampled five different geographic areas and utilized population genomics and quantitative trait analyses. Habitat and climate were the major drivers of diversification on the local geographical scale, while geography played a role over longer distances. In addition to conductivity and temperature, precipitation was one of the most important environmental drivers of differentiation. Our results imply that flushing episodes (floods) drive microalgal adaptation to different niches, highlighting the potential for rapid diversification in protists.
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- author
- Škaloud, Pavel ; Jadrná, Iva ; Dvořák, Petr ; Škvorová, Zuzana ; Pusztai, Martin ; Čertnerová, Dora ; Bestová, Helena and Rengefors, Karin LU
- organization
- publishing date
- 2024-01
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- algae, gene flow, population genomics, protist, RAD-seq, species diversification
- in
- Current Biology
- volume
- 34
- issue
- 1
- pages
- 6 - 105
- publisher
- Elsevier
- external identifiers
-
- pmid:38103550
- scopus:85181839702
- ISSN
- 0960-9822
- DOI
- 10.1016/j.cub.2023.11.046
- language
- English
- LU publication?
- yes
- id
- 669e0f64-3c6b-4485-a404-0b79767af2c9
- date added to LUP
- 2024-02-09 13:16:37
- date last changed
- 2024-04-25 16:12:08
@article{669e0f64-3c6b-4485-a404-0b79767af2c9,
abstract = {{<p>Microbial eukaryotes (protists) have major functional roles in aquatic ecosystems, including the biogeochemical cycling of elements as well as occupying various roles in the food web. Despite their importance for ecosystem function, the factors that drive diversification in protists are not known. Here, we aimed to identify the factors that drive differentiation and, subsequently, speciation in a free-living protist, Synura petersenii (Chrysophyceae). We sampled five different geographic areas and utilized population genomics and quantitative trait analyses. Habitat and climate were the major drivers of diversification on the local geographical scale, while geography played a role over longer distances. In addition to conductivity and temperature, precipitation was one of the most important environmental drivers of differentiation. Our results imply that flushing episodes (floods) drive microalgal adaptation to different niches, highlighting the potential for rapid diversification in protists.</p>}},
author = {{Škaloud, Pavel and Jadrná, Iva and Dvořák, Petr and Škvorová, Zuzana and Pusztai, Martin and Čertnerová, Dora and Bestová, Helena and Rengefors, Karin}},
issn = {{0960-9822}},
keywords = {{algae; gene flow; population genomics; protist; RAD-seq; species diversification}},
language = {{eng}},
number = {{1}},
pages = {{6--105}},
publisher = {{Elsevier}},
series = {{Current Biology}},
title = {{Rapid diversification of a free-living protist is driven by adaptation to climate and habitat}},
url = {{http://dx.doi.org/10.1016/j.cub.2023.11.046}},
doi = {{10.1016/j.cub.2023.11.046}},
volume = {{34}},
year = {{2024}},
}