Moving beyond heritability in the search for coral adaptive potential

This is a Preprint and has not been peer reviewed. The published version of this Preprint is available: https://doi.org/10.1111/gcb.16719. This is version 2 of this Preprint.

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Authors

Thomas J Richards, Katrina McGuigan, J David Aguirre, Adriana Humanes, Yves-Marie Bozec, Peter J Mumby, Cynthia Riginos 

Abstract

Global environmental change is happening at unprecedented rates. Coral reefs are among the ecosystems most threatened by global change. For wild populations to persist, they must adapt. Knowledge shortfalls about corals’ complex ecological and evolutionary dynamics, however, stymie predictions about potential adaptation to future conditions. Here, we review adaptation through the lens of quantitative genetics. We argue that coral adaptation studies can benefit greatly from “wild” quantitative genetic methods, where traits are studied in wild populations undergoing natural selection, genomic relationship matrices can replace breeding experiments, and analyses can be extended to examine genetic constraints among traits. Individuals with advantageous genotypes for anticipated future conditions can be identified. Finally, genomic genotyping supports simultaneous consideration of how genetic diversity is arrayed across geographic and environmental distances, providing greater context for predictions of phenotypic evolution at a metapopulation scale.

DOI

https://doi.org/10.32942/X2T596

Subjects

Other Ecology and Evolutionary Biology

Keywords

adaptation, bleaching, coral, genetic constraint, genomic relationship matrix, quantitative genetics, thermal tolerance

Dates

Published: 2023-01-17 16:21

Last Updated: 2023-04-03 16:14

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License

CC-BY Attribution-NonCommercial 4.0 International

Additional Metadata

Conflict of interest statement:
None

Data and Code Availability Statement:
Not applicable