Comparative Mitochondrial Genomes of Curcuma longa and Curcuma kwangsiensis

Two complete mitochondrial genomes from the medicinal ginger family Zingiberaceae reveal highly expanded and fragmented architectures of 7.66 Mb and 7.96 Mb. Assembled by Yunyi Zhou and published in April 2026, these genomes contain 39 core protein-coding genes each and show species-specific variation in gene duplication, RNA editing, and repeat content. The data provides genomic resources for resolving phylogenetic relationships and understanding mitochondrial genome plasticity.

Use Cases

• Analyzing structural genome evolution based on reported synteny comparisons and repeat landscapes.
• Studying molecular evolution based on reported codon usage bias and selection pressure analysis on specific genes like atp8 and nad4.
• Investigating cross-organelle gene transfer based on the 25 reported plastid-derived fragments.
• Reconstructing phylogenetic relationships within the genus Curcuma based on the reported maximum bootstrap support of 100.

Strengths

• Complete mitochondrial genome assemblies for two species with specific sizes (7.66 Mb and 7.96 Mb).
• Detailed comparative metrics reported, including GC content (43.7–43.9%), core gene count (39), and repeat element counts (e.g., 3,059 dispersed repeats in C. kwangsiensis).
• Analysis includes multiple evolutionary dimensions: codon usage, RNA editing, selection pressure, and synteny.

Limitations

• Row count is unknown, which may limit suitability assessment.
• Column-level documentation is absent; field semantics must be inferred after download.
• The dataset is very small (11.1 KB), indicating limited scope, likely containing summary analysis tables rather than raw sequence data.

Provenance

Source

figshare

Collection Method

Sequencing and assembly of complete mitochondrial genomes.

Freshness

Last updated 2026-04-15 05:47:09; freshness should be verified.