New microsatellite markers for the shallow coral Madracis auretenra from the Caribbean

PLoS One. 2022 Sep 28;17(9):e0274895. doi: 10.1371/journal.pone.0274895. eCollection 2022.

Abstract

Coral reefs species represent one-third of all marine species described in the ocean. They are also responsible for providing habitat and support to different species. Recently, Caribbean coral reefs ecosystems have suffered an alarming decrease in their populations as a result of overexploitation. Madracis auretenra in particular, is a widespread shallow coral in marine protected areas (MPAs) of the Caribbean. Due to the important role of MPAs as a biodiversity conservation tool, this species can be used as a model to estimate its dispersion/migration among Caribbean reefs through the use of informative genetic markers (microsatellites) specifically designed for it. Seventeen new polymorphic microsatellites markers for M. auretenra were developed and tested in 330 samples from Colombia, Guatemala, Curacao and Barbados. The gene diversity (1-D) ranged from 0.482 to 0.903, while the evenness ranged from 0.456 to 0.884 after clone removal. The expected heterozygosity (He) ranged from 0.347 to 0.742, while the observed heterozygosity (Ho) ranged from 0.078 to 0.578. The specificity of our microsatellites shows the potential use of these markers in a-posteriori analysis to detect population structure at different spatial scales, where M. auretenra is reported.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Anthozoa* / genetics
  • Caribbean Region
  • Coral Reefs
  • Ecosystem
  • Genetic Markers
  • Microsatellite Repeats / genetics

Substances

  • Genetic Markers

Grants and funding

DCBC received salary from: Grant "Doctorados en el Exterior 646 de 2014", from the National Department of Science, Technology and Innovation of Colombia - COLCIENCIAS". (https://minciencias.gov.co) and Grant "Manchester Metropolitan University Scholarship- X16501585". The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.