CmHDZ Gene Family in Chinese Chestnut: 25 Genes and Expression Under Abiotic Stress

25 CmHDZ transcription factor genes were identified in the Chinese chestnut genome, with 24 distributed across 12 chromosomes. The study by Xiurong Xu, uploaded to figshare in April 2026, analyzes their evolutionary relationships and expression patterns under shading, low-temperature, and high-temperature stress. Quantitative analysis confirmed the transcriptome data, providing a genetic resource for molecular breeding.

Use Cases

• Evolutionary analysis of HDZ transcription factors based on the four identified subfamilies (HDZ I-IV).
• Studying gene expression regulation under abiotic stress based on promoter cis-acting element predictions.
• Comparative genomics based on collinearity analysis with species like Arabidopsis thaliana, rice, and maize.
• Screening candidate resistance genes for molecular breeding based on tissue-specific expression patterns under stress.

Strengths

• Identifies a specific set of 25 CmHDZ genes with detailed subfamily classification (13 in HDZ I, 7 in HDZ II, 4 in HDZ III, 1 in HDZ IV).
• Includes validation through quantitative analysis confirming the reliability of the transcriptome data.
• Provides specific findings on gene localization, with most predicted to be nuclear and one (CmHDZ13) localized to the chloroplast.

Limitations

• Dataset is very small (3.6 KB), indicating limited scope and likely a summary table rather than raw experimental data.
• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment for statistical analysis.

Provenance

Source

figshare, author Xiurong Xu.

Collection Method

Genome-wide identification and bioinformatic analysis of the Castanea mollissima genome, supplemented by expression validation experiments.

Freshness

Last updated 2026-04-30 05:28:56; freshness should be verified.