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Related Concept Videos

Responses to Heat and Cold Stress02:45

Responses to Heat and Cold Stress

Every organism has an optimum temperature range within which healthy growth and physiological functioning can occur. At the ends of this range, there will be a minimum and maximum temperature that interrupt biological processes.
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Bacteria have global regulatory systems that control several types of stress mechanisms. These include Pho regulon and the heat shock response, which are essential systems for environmental adaptation, such as nutrient limitation and proteotoxic stress. The Pho regulon and the heat shock response exemplify bacterial resilience, enabling rapid adaptation to fluctuating environmental conditions.Pho RegulonBacteria require phosphorus for essential cellular processes, including nucleic acid...
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Transcription01:10

Transcription

Overview
Transcription is the process of synthesizing RNA from a DNA sequence by RNA polymerase. It is the first step in producing a protein from a gene sequence. Additionally, many other proteins and regulatory sequences are involved in the proper synthesis of messenger RNA (mRNA). Regulation of transcription is responsible for the differentiation of all the different types of cells and often for the proper cellular response to environmental signals.
Transcription Can Produce Different Kinds...

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Updated: May 15, 2026

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Investigating Low-Temperature Stress Responses in Crustacea Aquatic Species Through Comparative Transcriptomics.

Ying Chen1, Weihua Yan1, Tong Xu1,2

  • 1MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences/Key Laboratory of Tropical Aquatic Germplasm of Hainan Province Sanya Oceanographic Institution, Ocean University of China Qingdao Shandong/Sanya, Hainan China.

Evolutionary Applications
|May 14, 2026
PubMed
Summary

Crustaceans show varied responses to cold stress, with some genes adapting over time. This research aids in breeding cold-tolerant species for resilient aquaculture.

Keywords:
comparative transcriptomecrustaceanslow‐temperature stressorthogroups

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Area of Science:

  • Aquaculture
  • Genomics
  • Molecular Biology

Background:

  • Aquaculture is vital globally, but cold stress significantly reduces crustacean productivity.
  • Understanding crustacean cold tolerance is crucial for improving aquaculture resilience.

Purpose of the Study:

  • To investigate the molecular mechanisms of cold stress response in five key crustacean species.
  • To identify conserved and species-specific genes and pathways involved in low-temperature adaptation.

Main Methods:

  • Comparative transcriptomic and genomic analyses were performed on five economically important crustacean species.
  • Differential gene expression under low-temperature conditions was analyzed.
  • Phylogenetic analysis was used to trace the evolutionary origins of stress-responsive genes.

Main Results:

  • 4711 conserved orthogroups were identified, with 25 shared across all five species.
  • Functional enrichment revealed key pathways including oxidation-reduction, hormone metabolism, and immune regulation.
  • Younger genes showed greater transcriptional plasticity than ancient conserved genes in response to cold stress.

Conclusions:

  • Shared and species-specific molecular mechanisms underlie crustacean cold adaptation.
  • Key genes like EcKL, CYP2W1, HSPA5, and SLCs play roles in adaptation.
  • Findings provide a basis for breeding cold-tolerant crustacean strains to enhance aquaculture sustainability.