{
  "id": 17729164,
  "title": "Genetic diversity of endangered Acropora spp. corals in Bonaire: implications for restoration and gene banking",
  "url": "https://urgent.news/2026/11/01/genetic-diversity-of-endangered-acropora-spp-corals-in-bonaire",
  "topic": "science",
  "section": "Science",
  "published": "2026-11-01T00:00:00.000Z",
  "source": {
    "name": "bioRxiv",
    "slug": "biorxiv",
    "url": "https://www.biorxiv.org/content/10.64898/2026.10.27.762239v1?rss=1"
  },
  "original_language": "en",
  "account": "The genetic diversity of endangered Acropora spp. corals is crucial for successful restoration efforts, yet maintaining this diversity in asexual species, such as corals, is inherently challenging. Caribbean elkhorn and staghorn corals (Acropora palmata, A. cervicornis) are prime candidates for restoration due to their status as critically endangered reef-building corals. To assess the genetic diversity of an Acropora spp. restoration program and understand local population genetic structure, researchers conducted microsatellite genotyping on gene banks of 35 A. palmata and 25 A. cervicornis lineages kept by Reef Renewal Foundation Bonaire (RRFB) in the Caribbean Netherlands.\n\nThe study found that RRFB possessed high genotypic richness for both A. palmata (0.971) and A. cervicornis (1.0). This indicates that RRFB captured a significant portion of the island's microsatellite asymptotic allelic diversity, specifically 88.9% for A. palmata and 74.7% for A. cervicornis. When compared to Acropora spp. populations in other parts of the Caribbean, A. palmata in Bonaire exhibited relatively low expected heterozygosity, while A. cervicornis showed higher genetic diversity, outperforming approximately half of other populations.\n\nInterestingly, the researchers did not find evidence for genetic structuring among spatially separated subpopulations of these coral species across Bonaire. This suggests that both species are likely well-connected around the island, facilitating gene flow. These findings demonstrate the effectiveness of RRFB's strategies in capturing high genetic diversity for Acropora spp. corals. This success can serve as a model for future initiatives aimed at coral sexual breeding and assisted gene flow beyond Bonaire, contributing to the broader effort to combat biodiversity loss through species restoration.",
  "summary": "Species restoration is a valuable tool to combat biodiversity loss. However, maintaining genetic diversity in species restoration is challenging, particularly for species that can reproduce asexually, such as plants and corals, because a seemingly diverse collection of individuals could be composed of many clones of a few genotypes. Caribbean elkhorn and staghorn corals (Acropora palmata, A.…",
  "key_points": [],
  "editors_take": null,
  "illustration": null,
  "coverage": {
    "outlets": 1,
    "also_reported_by": []
  },
  "ai_generated": true,
  "disclaimer": "Summaries, key points and the editor’s take are written by software from other outlets’ reporting and may contain errors — always check the linked original."
}