{
  "id": 9100683,
  "title": "Evidence of selection in sympatry between two closely related species of rockfish",
  "url": "https://urgent.news/2026/09/21/evidence-of-selection-in-sympatry-between-two-closely-related-species",
  "topic": "science",
  "section": "Science",
  "published": "2026-09-21T00:00:00.000Z",
  "source": {
    "name": "bioRxiv",
    "slug": "biorxiv",
    "url": "https://www.biorxiv.org/content/10.64898/2026.09.15.751943v1?rss=1"
  },
  "original_language": "en",
  "account": null,
  "summary": "Ecological or reproductive barriers can maintain species boundaries by preventing introgression in closely related taxa when their distributions overlap (sympatry). In sympatry, sister-taxa may have greater genetic divergence compared to allopatric parts of their range. When analyzing populations of one of the sister-taxa, this divergence may translate to greater genetic differentiation between…",
  "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."
}