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Analyzing Gene Expression from Marine Microbial Communities using Environmental Transcriptomics
13:51

Analyzing Gene Expression from Marine Microbial Communities using Environmental Transcriptomics

Published on: February 18, 2009

Population-level transcriptomic datasets from two benthic invertebrates exposed to long-term experimental warming and

Elisavet Kaitetzidou1,2, Harris Markomanolaki1, Francesco Fabiano3,1

  • 1Hellenic Centre for Marine Research, Institute of Marine Biology, Biotechnology and Aquaculture, Heraklion, Greece Hellenic Centre for Marine Research, Institute of Marine Biology, Biotechnology and Aquaculture Heraklion Greece https://ror.org/038kffh84.

Biodiversity Data Journal
|June 29, 2026
PubMed
Summary

Ocean warming and acidification impact marine life. New RNA-seq datasets for sponges and gastropods offer insights into their resilience to climate change stressors.

Keywords:
PoriferaMediterraneanRNA-seqclimate changeenvironmental stressorsmRNA sequencingmarine gastropodstranscriptome

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Area of Science:

  • Marine Biology
  • Genomics
  • Ecotoxicology

Background:

  • Marine ecosystems face significant threats from ocean warming and acidification.
  • Low-mobility benthic organisms are particularly vulnerable to these climate change stressors.
  • Limited genomic and transcriptomic data exist for key benthic invertebrates under combined climate stress.

Purpose of the Study:

  • To generate population-level RNA-seq datasets for the sponge *Chondrilla nucula* and the gastropod *Hexaplex trunculus*.
  • To investigate the transcriptional responses of these species to simulated near-future climate change conditions.
  • To provide valuable genomic resources for studying climate change resilience in benthic invertebrates.

Main Methods:

  • Collected sponge (*C. nucula*) and gastropod (*H. trunculus*) populations from the Aegean Sea.
  • Exposed organisms to elevated temperature and reduced pH for three months in a common-garden experiment.
  • Generated paired-end Illumina RNA-seq data, performing *de novo* transcriptome assembly for *C. nucula* and genome-guided alignments for *H. trunculus*.

Main Results:

  • High-quality RNA-seq datasets were successfully generated for both species.
  • A complete *de novo* transcriptome assembly for *C. nucula* was achieved.
  • Genome-guided alignments were completed for *H. trunculus*.

Conclusions:

  • The generated datasets are a crucial resource for understanding transcriptional plasticity in response to climate change.
  • These data will facilitate research into the resilience mechanisms of benthic marine invertebrates.
  • This study enhances our capacity to predict and mitigate the impacts of climate change on marine biodiversity.