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Related Concept Videos

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Updated: Jan 11, 2026

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Comparative transcriptomic profiles of Haloxylon ammodendron under the salinity stress.

Tianquan Yu1, Yicheng Li2, Bin Wang1

  • 1Wuwei Forestry Comprehensive Service Center, Wuwei, Gansu, 733000, People's Republic of China.

BMC Genomics
|November 12, 2025
PubMed
Summary

Haloxylon ammodendron exhibits remarkable salt tolerance, crucial for desert control. This study reveals its temporal gene expression patterns, identifying key genes and pathways involved in adapting to high salinity.

Keywords:
Co-expression networkECHaloxylon ammodendronPHSalinity stressTemporal analysisWGCNA

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Area of Science:

  • Plant Molecular Biology
  • Transcriptomics
  • Environmental Stress Physiology

Background:

  • Haloxylon ammodendron is ecologically vital for desertification control in arid regions.
  • Its exceptional salt tolerance mechanisms are poorly understood.
  • Understanding these mechanisms is key for arid land reclamation.

Purpose of the Study:

  • To investigate the temporal transcriptomic responses of Haloxylon ammodendron to varying salinity levels.
  • To identify molecular pathways and genes associated with salt tolerance.
  • To provide insights into the adaptation strategies of desert plants.

Main Methods:

  • Temporal transcriptomic analysis under different salinity concentrations.
  • Differential gene expression analysis at multiple time points (7, 21, 30 days).
  • Weighted Gene Co-expression Network Analysis (WGCNA) to identify key modules and hub genes.

Main Results:

  • Distinct temporal gene expression patterns were observed across salinity levels.
  • 21 days represented a critical period for salt response, with 4,533 differentially expressed genes (DEGs).
  • WGCNA identified modules enriched in photosynthesis, metabolism, and stress response pathways, with ATPD as a key hub gene.

Conclusions:

  • This study offers the first comprehensive temporal transcriptomic view of H. ammodendron's salt response.
  • Novel molecular insights into extreme salt tolerance mechanisms were uncovered.
  • Identified hub genes and pathways are valuable targets for improving desert reclamation.