A comparative analysis of nine Araceae species revealed significant variation in mitochondrial genome architecture. Key findings include:

Dispersed repeats were categorized by length into four classes (Class I: 50–100 bp; Class II: 100–500 bp; Class III: 500–5000 bp; and Class IV: >5000 bp).

The total cumulative length of these repeats varies between 4,602 bp and 122,573 bp across the studied species.

Write-up: Comparative Analysis of Araceae Mitochondrial Genomes Genomic Repeat Diversity in Araceae Mitogenomes

The species P. ternata is unique in this group for possessing Class IV repeats (those larger than 5,000 bp), which account for approximately 5.5% of its total mitogenome length.