Published February 14, 2023 | Version v1
Dataset Open

Genetic differentiation of a critically endangered population of the limpet Patella candei candei d'Orbigny, 1840, in the Canary Islands

  • 1. University of Santiago de Compostela
  • 2. Spanish Institute of Oceanography
  • 3. University of Las Palmas de Gran Canaria
  • 4. Gobierno de Canarias

Description

The adoption of measures to protect the viability of threatened populations should be supported by empirical data identifying appropriate conservation units and management strategies. The global population of the majorera limpet, P. candei candei d'Orbigny, 1840, is restricted to the Macaronesian islands in the NE Atlantic, including near-to-extinct and healthy populations in Fuerteventura and Selvagens, respectively. The taxonomic position, genetic diversity and intra- and interspecific relationships of these populations are unclear, which is hindering the implementation of a recovery plan for the overexploited majorera limpet on Fuerteventura. In this study, ddRAD-based genome scanning was used to overcome the limitations of mitochondrial DNA-based analysis. As a result, P. candei candei was genetically differentiated from the closely related P. candei crenata for the first time. Moreover, genetic differentiation was detected between P. candei candei samples from Selvagens and Fuerteventura, indicating that translocations from the healthy Selvagens source population are inadvisable. In conclusion, the majorera limpet requires population-specific management focused on the preservation of exceptional genetic diversity with which to face future environmental challenges.

Notes

Funding provided by: Ministerio para la Transición Ecológica y el Reto Demográfico
Crossref Funder Registry ID: http://dx.doi.org/10.13039/501100019408
Award Number: SNPs4candei Project (2020–2021)

Funding provided by: Universidade de Santiago de Compostela

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