Genomic analysis reveals broad adaptability of coral-killing sponge (Terpios hoshinota) under environmental stress

The coral-killing sponge, Terpios hoshinota, poses a significant ecological threat to coral reefs, exhibiting rapid expansion and competitive overgrowth. Despite its invasiveness, the genomic basis underlying its adaptability and resilience remains largely unexplored. Here, we present a high-quality genome assembly of T. hoshinota, comprising 169.4 Mb with 40,945 predicted genes. Phylogenomic analysis estimated its divergence from other demosponges during the Ordovician (~ 471 million years ago), even though its simple morphology suggests a more ancient evolutionary origin. Comparative genomic analyses revealed enrichment of genes related to substrate adhesion, innate immunity, and developmental pathways, including expansions of Wnt signaling, homeobox genes, and cell migration gene ontologies which may contribute to its aggressive growth and resilience. Transcriptomic responses under simulated climate stress conditions (heat stress at 31 °C and acidification at 700 ppm pCO₂) indicated dynamic gene regulation, with upregulation of neurotransmitter metabolism, cellular maintenance, and ion homeostasis responses. Despite these stressors, it remained stable. This suggests that T. hoshinota exhibits strong adaptability and resilience through rapid gene regulation. In conclusion, these findings provide molecular insights into T. hoshinota’s ecological success, its potential expansion under climate change, and its broader impact on coral reef ecosystems.

• Publication year

  2025

• Venue

  BMC Genomics

• Publication date

  2025-09-26

• Fields of study

  Biology, Medicine, Environmental Science

• Identifiers
  DOI 10.1186/s12864-025-11962-7PMID 41013189PMCID 12465263
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar, PubMed

• No claims are published for this paper.

• No concepts are published for this paper.

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