• Ecological diversification in...

Treffer: Ecological diversification in sexual and asexual lineages.

Title:
Ecological diversification in sexual and asexual lineages.
Authors:
Chaparro-Pedraza PC; Department of Fish Ecology and Evolution, Swiss Federal Institute of Aquatic Science and Technology (EAWAG), Kastanienbaum, Switzerland. Catalina.Chaparro@eawag.ch.; Department Systems Analysis, Integrated Assessment and Modelling, Swiss Federal Institute of Aquatic Science and Technology (EAWAG), Dübendorf, Switzerland. Catalina.Chaparro@eawag.ch.; Inst. of Ecology and Evolution, University of Bern, Bern, Switzerland. Catalina.Chaparro@eawag.ch.; Swiss Institute of Bioinformatics, Lausanne, Switzerland. Catalina.Chaparro@eawag.ch., Roth G; Friedrich Miescher Institute for Biomedical Research, Basel, Switzerland., Melián CJ; Department of Fish Ecology and Evolution, Swiss Federal Institute of Aquatic Science and Technology (EAWAG), Kastanienbaum, Switzerland.; Inst. of Ecology and Evolution, University of Bern, Bern, Switzerland.; Inst. de Física Interdisciplinar y Sistemas Complejos IFISC (CSIC-UIB), Palma de Mallorca, Spain.
Source:
Scientific reports [Sci Rep] 2024 Dec 05; Vol. 14 (1), pp. 30369. Date of Electronic Publication: 2024 Dec 05.
Publication Type:
Journal Article
Language:
English
Journal Info:
Publisher: Nature Publishing Group Country of Publication: England NLM ID: 101563288 Publication Model: Electronic Cited Medium: Internet ISSN: 2045-2322 (Electronic) Linking ISSN: 20452322 NLM ISO Abbreviation: Sci Rep Subsets: MEDLINE
Imprint Name(s):
Original Publication: London : Nature Publishing Group, copyright 2011-
MeSH Terms:
Reproduction, Asexual*/genetics , Selection, Genetic*, Biological Evolution ; Reproduction/genetics ; Ecosystem ; Biodiversity
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Grant Information:
898687 European Union's Horizon 2020
Entry Date(s):
Date Created: 20241205 Date Completed: 20241205 Latest Revision: 20241209
Update Code:
20250114
PubMed Central ID:
PMC11621406
DOI:
10.1038/s41598-024-81770-8
PMID:
39638813
Database:
MEDLINE

Weitere Informationen

The presence or absence of sex can have a strong influence on the processes whereby species arise. Yet, the mechanistic underpinnings of this influence are poorly understood. To gain insights into the mechanisms whereby the reproductive mode may influence ecological diversification, we investigate how natural selection, genetic mixing, and the reproductive mode interact and how this interaction affects the evolutionary dynamics of diversifying lineages. To do so, we analyze models of ecological diversification for sexual and asexual lineages, in which diversification is driven by intraspecific resource competition. We find that the reproductive mode strongly influences the diversification rate and, thus, the ensuing diversity of a lineage. Our results reveal that ecologically-based selection is stronger in asexual lineages because asexual organisms have a higher reproductive potential than sexual ones. This promotes faster diversification in asexual lineages. However, a small amount of genetic mixing accelerates the trait expansion process in sexual lineages, overturning the effect of ecologically-based selection alone and enabling a faster niche occupancy than asexual lineages. As a consequence, sexual lineages can occupy more ecological niches, eventually resulting in higher diversity. This suggests that sexual reproduction may be widespread among species because it increases the rate of diversification.
(© 2024. The Author(s).)

Declarations. Competing interests: The authors declare no competing interests.