Accéder directement au contenu Accéder directement à la navigation
Article dans une revue

At the nexus of three kingdoms: the genome of the mycorrhizal fungus Gigaspora margarita provides insights into plant, endobacterial and fungal interactions

Abstract : As members of the plant microbiota, arbuscular mycorrhizal fungi (AMF, Glomeromycotina) symbiotically colonize plant roots. AMF also possess their own microbiota, hosting some uncultivable endobacteria. Ongoing research has revealed the genetics underlying plant responses to colonization by AMF, but the fungal side of the relationship remains in the dark. Here, we sequenced the genome of Gigaspora margarita, a member of the Gigasporaceae in an early diverging group of the Glomeromycotina. In contrast to other AMF, G. margarita may host distinct endobacterial populations and possesses the largest fungal genome so far annotated (773.104 Mbp), with more than 64% transposable elements. Other unique traits of the G. margarita genome include the expansion of genes for inorganic phosphate metabolism, the presence of genes for production of secondary metabolites and a considerable number of potential horizontal gene transfer events. The sequencing of G. margarita genome reveals the importance of its immune system, shedding light on the evolutionary pathways that allowed early diverging fungi to interact with both plants and bacteria.
Type de document :
Article dans une revue
Liste complète des métadonnées

https://hal.inrae.fr/hal-02628269
Déposant : Migration Prodinra <>
Soumis le : mardi 26 mai 2020 - 22:36:38
Dernière modification le : vendredi 12 juin 2020 - 10:43:26

Lien texte intégral

Identifiants

Collections

Citation

Francesco Venice, Stefano Ghignone, Alessandra Salvioli Di Fossalunga, Joelle Amselem, Mara Novero, et al.. At the nexus of three kingdoms: the genome of the mycorrhizal fungus Gigaspora margarita provides insights into plant, endobacterial and fungal interactions. Environmental Microbiology, Wiley-Blackwell, 2020, 22 (1), pp.122-141. ⟨10.1111/1462-2920.14827⟩. ⟨hal-02628269⟩

Partager

Métriques

Consultations de la notice

40