Comparative Plastome Analyses and Phylogenetic Insights for 25 Blumea Taxa

25 plastomes from the Blumea plant genus, including 23 newly sequenced samples, were compared for structural variation, divergence hotspots, and codon usage bias. The dataset, authored by Pingxuan Xie and last updated in May 2026, was used to reconstruct the genus's phylogeny using 47 plastomes and 38 nrDNA sequences. Results supported dividing Blumea into four clades and identified nine divergent hotspot regions as candidate DNA barcodes.

Use Cases

• Constructing phylogenetic trees based on complete plastome and nrDNA sequence data.
• Identifying DNA barcode candidates for species identification based on nine divergent hotspot regions.
• Analyzing codon usage bias and simple sequence repeat (SSR) patterns across related plant species.
• Comparing plastome structural features, such as junction types and gene order, within a genus.

Strengths

• Includes 23 newly sequenced plastomes, providing novel genetic data for the genus.
• Identifies nine specific divergent hotspot regions suitable for DNA barcoding.
• Analyzes a defined set of 113 unique genes (79 protein-coding, 30 tRNA, 4 rRNA) per plastome.
• Plastome sizes are precisely documented, ranging from 150,779 bp to 151,281 bp.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• The dataset is very small (22.3 KB), indicating limited scope, likely containing summary results rather than raw sequence data.

Provenance

Source

Pingxuan Xie via figshare.

Collection Method

Comparative analysis of newly sequenced and publicly available plastomes.

Freshness

Last updated 2026-05-07 05:44:34; freshness should be verified.