{
  "id": 19411953,
  "title": "Functional Conservation Amid Extreme Divergence in Freshwater SAR11 Hypervariable Region 2",
  "url": "https://urgent.news/2026/11/10/functional-conservation-amid-extreme-divergence-in-freshwater-sar11",
  "topic": "science",
  "section": "Science",
  "published": "2026-11-10T00:00:00.000Z",
  "source": {
    "name": "bioRxiv",
    "slug": "biorxiv",
    "url": "https://www.biorxiv.org/content/10.64898/2026.11.09.765219v1?rss=1"
  },
  "original_language": "en",
  "account": null,
  "summary": "The Ca. Pelagibacterales order (SAR11) is a ubiquitous bacterioplankton in aquatic ecosystems. The genomes of SAR11 bacteria contain hypervariable region 2 (HVR2), the largest HVR with extreme diversity. Previous studies collectively indicated the enrichment of cell-surface modification genes on HVR2, which have been hypothesized to facilitate phage evasion. However, characterisation of HVR2 has…",
  "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."
}