{
  "id": 14603547,
  "title": "Microbial persistence beneath temporal restructuring in university wastewater metagenomes",
  "url": "https://urgent.news/2026/10/14/microbial-persistence-beneath-temporal-restructuring-in-university",
  "topic": "science",
  "section": "Science",
  "published": "2026-10-14T00:00:00.000Z",
  "source": {
    "name": "bioRxiv",
    "slug": "biorxiv",
    "url": "https://www.biorxiv.org/content/10.64898/2026.10.13.758942v1?rss=1"
  },
  "original_language": "en",
  "account": "Microbial persistence beneath temporal restructuring in university wastewater metagenomes reveals a fascinating dynamic. By combining genome-resolved and read-based metagenomics, researchers were able to distinguish shifts in microbial abundance, detectable membership, and genome recovery in 25 spatially pooled wastewater samples collected during wet and dry periods. The study found 203 wet-period and 230 dry-period metagenome-assembled genomes (MAGs), with community composition differing significantly between periods in both MAG-derived presence/absence profiles and read-based relative-abundance profiles. Greater dry-period read-based richness persisted after rarefaction, but vanished under more stringent abundance thresholds, suggesting a substantial contribution from low-abundance detections. Of 57 period-associated core species, 14 had exact species-level matches in the read-based dataset and remained detectable at 90% prevalence in the opposite period, often with higher relative abundance corresponding to their MAG-based association. Perfect/Strict CARD/RGI resistance-associated annotations were present in 94.1% of wet-period and 92.2% of dry-period MAGs, distributed across shared-core and period-associated taxa. This research highlights the importance of combining read-based and genome-resolved profiles to distinguish changes in detectable membership from changes in the genomic characterization available for wastewater surveillance.",
  "summary": "Temporal changes in wastewater microbiomes can reflect shifts in microbial abundance, detectable membership, and genome recovery. We paired genome-resolved and read-based metagenomics to distinguish these signals in 25 spatially pooled university wastewater samples collected during wet and dry periods. The workflow recovered 203 wet-period and 230 dry-period metagenome-assembled genomes (MAGs).…",
  "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."
}