Species ecology explains the spatial components of genetic diversity in tropical reef fishes

Species ecology explains the spatial components of genetic diversity in tropical reef fishes

Generating genomic data for 19 tropical reef fish species of the Western Indian Ocean, we investigate how species ecology influences genetic diversity patterns from local to regional scales. We distinguish between the , and components of genetic diversity, which we subsequently link to six ecologica...

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Bibliographic Details
Published in:Proceedings of the Royal Society. B, Biological sciences Vol. 288; no. 1959; p. 20211574
Main Authors: Donati, Giulia Francesca Azzurra, Zemp, Niklaus, Manel, Stéphanie, Poirier, Maude, Claverie, Thomas, Ferraton, Franck, Gaboriau, Théo, Govinden, Rodney, Hagen, Oskar, Ibrahim, Shameel, Mouillot, David, Leblond, Julien, Julius, Pagu, Velez, Laure, Zareer, Irthisham, Ziyad, Adam, Leprieur, Fabien, Albouy, Camille, Pellissier, Loïc
Format: Journal Article
Language:English
Published: England Royal Society, The 29-09-2021
The Royal Society
Subjects:
Animals
Biodiversity
Biodiversity and Ecology
Body Size
Coral Reefs
Environmental Sciences
Evolution, Molecular
Fishes - genetics
Genetic Variation
Genetics and Genomics
Global Changes
ecological trait
genetic diversity
Western Indian Ocean
tropical reef fishes
ddRADseq
coral reefs
larval dispersal
patterns
evolution
hybridization
conservation
population-size
marine fish
r-package
genomics
metrics
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Summary:Generating genomic data for 19 tropical reef fish species of the Western Indian Ocean, we investigate how species ecology influences genetic diversity patterns from local to regional scales. We distinguish between the , and components of genetic diversity, which we subsequently link to six ecological traits. We find that the and components of genetic diversity are strongly correlated so that species with a high total regional genetic diversity display systematically high local diversity. The and diversity components are negatively associated with species abundance recorded using underwater visual surveys and positively associated with body size. Pelagic larval duration is found to be negatively related to genetic diversity supporting its role as a dispersal trait in marine fishes. Deviation from the neutral theory of molecular evolution motivates further effort to understand the processes shaping genetic diversity and ultimately the diversification of the exceptional diversity of tropical reef fishes.
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PMCID: PMC8479362
Electronic supplementary material is available online at https://doi.org/10.6084/m9.figshare.c.5619013.
Authors share senior authorship of this article.
ISSN:0962-8452
1471-2954
DOI:10.1098/rspb.2021.1574