Comparative analysis of mitochondrial genomes of Rhizophagus irregularis - syn. Glomus irregulare - reveals a polymorphism induced by variability generating elements.

Arbuscular mycorrhizal (AM) fungi are involved in one of the most widespread plant-fungus interactions. A number of studies on the population dynamics of AM fungi have used mitochondrial (mt) DNA sequences, and yet mt AM fungus genomes are poorly known. To date, four mt genomes of three species of AM fungi are available, among which are two from Rhizophagus irregularis.