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Species-specific patterns of population genetic structure differ on a microgeographic scale

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Show full item recordAbstract: | [English] Coral exhibits substantial variation in pelagic larval duration, dispersal range, and population connectivity. In this study, we used reduced representation genotyping to compare the genetic structure of Caribbean reef-building species along the southeastern Dominican Republic coastline to assess connectivity within the likely dispersal kernel. Despite relatively small geographic distance between reefs, species-specific differences in genetic structure were observed. The broadcasting coral Orbicella faveolata had high levels of genetic connectivity. Between the two brooding species, Agaricia agaricites showed strong genetic subdivision, while Porites astreoides exhibited high levels of gene flow. These results suggest that multiple factors outside of life history characteristics influence genetic differentiation among populations, with species-level variability underscoring the importance of restoration and management strategies tailored to individual species, considering regional genetic and environmental variability. [Español] Los corales presentan una notable variación en la duración de su etapa larval pelágica, el rango de dispersión y la conectividad entre sus poblaciones. En este estudio, utilizamos técnicas de genotipificación de representación reducida para comparar la estructura genética de especies constructoras de arrecifes del Caribe a lo largo de la costa sureste de la República Dominicana y evaluar la conectividad dentro del núcleo probable de dispersión. A pesar de las distancias geográficas relativamente cortas entre los arrecifes, se observaron diferencias específicas por especie en la estructura genética. El coral desovante Orbicella faveolata mostró altos niveles de conectividad genética. Entre las dos especies incubadoras, Agaricia agaricites presentó una marcada subdivisión genética, mientras que Porites astreoides mostró altos niveles de flujo génico. Estos resultados sugieren que múltiples factores, además de las características de su ciclo de vida, influyen en la diferenciación genética entre poblaciones, destacando la importancia de diseñar estrategias de restauración y manejo adaptadas a cada especie, teniendo en cuenta la variabilidad genética y ambiental de la región. |
Author(s): | O’Donnell, Sibelle E.
Ruggeri, Maria Blanco-Pimentel, Macarena Morikawa, Megan K. Harms, Erika Calle-Triviño, Johanna Flanagan, Ben A. Carlson, Harold K. Kenkel, Carly D. Million, Wyatt C. |
Date: | 2025 |
Published: | Coral Reefs 44, 353–358 |
Citation: | O’Donnell, S.E., Ruggeri, M., Blanco-Pimentel, M. et al. (2025). Species-specific patterns of population genetic structure differ on a microgeographic scale. Coral Reefs 44, 353–358. Recuperado de: |
URI: | https://bvearmb.do/handle/123456789/6682
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© The authors. Available at: https://link.springer.com/
© The authors. Available at: https://link.springer.com/