Pré-Publication, Document De Travail Année : 2025

Nissolia brasiliensis as a non-nodulating model legume

Isabelle Dufau
Charlotte Cravero
Olivier Coriton

Résumé

The nitrogen-fixing root nodule symbiosis (RNS) is specifically formed by four orders of angiosperms. The largest of these four orders include the legume family, the Fabaceae. Among legumes, historical model species have emerged, such as the RNS-forming Medicago truncatula and Lotus japonicus, or, more recently, Aeschynomene aevenia. By contrast, legume species that have lost RNS have been largely ignored. Here, we describe the first chromosome-level assembly for a non-RNS-forming legume, the tropical papilionoid Nissolia brasiliensis. We compared its genome to closely related legumes and identified genes associated with RNS. Finally, we developed a stable transformation protocol that can be deployed in the future to re-evolve RNS in legumes, a first step toward the goal of engineering RNS in non-legume crops.

Dates et versions

hal-05348012 , version 1 (05-11-2025)

Identifiants

Citer

Camille Girou, Jean Keller, Cyril Libourel, Fabian van Beveren, Matheus Bianconi, et al.. Nissolia brasiliensis as a non-nodulating model legume. 2025. ⟨hal-05348012⟩
73 Consultations
0 Téléchargements

Altmetric

Partager

  • More