This research examined how fungal mitochondrial genomes (the DNA inside cellular powerhouses) change over evolutionary time. The study revealed that non-coding DNA segments play a major role in shaping these genomes, with faster-evolving species accumulating more of these elements. This has implications for understanding how organisms evolve and adapt. Impacts on everyday life: • Helps understand how fungi evolve and adapt to new environments • Provides insights for developing better antifungal treatments • Advances our knowledge of cellular energy production • Could lead to improvements in biotechnology applications using fungi • Contributes to understanding biological diversity and evolution