Comparative phylotranscriptomics reveals ancestral and derived root nodule symbiosis programmes.

Autor: Libourel C; Laboratoire de Recherche en Sciences Végétales (LRSV), Université de Toulouse, CNRS, UPS, Toulouse INP, Castanet-Tolosan, France., Keller J; Laboratoire de Recherche en Sciences Végétales (LRSV), Université de Toulouse, CNRS, UPS, Toulouse INP, Castanet-Tolosan, France., Brichet L; LIPME, Université de Toulouse, INRAE, CNRS, Castanet-Tolosan, France., Cazalé AC; LIPME, Université de Toulouse, INRAE, CNRS, Castanet-Tolosan, France., Carrère S; LIPME, Université de Toulouse, INRAE, CNRS, Castanet-Tolosan, France., Vernié T; Laboratoire de Recherche en Sciences Végétales (LRSV), Université de Toulouse, CNRS, UPS, Toulouse INP, Castanet-Tolosan, France., Couzigou JM; Laboratoire de Recherche en Sciences Végétales (LRSV), Université de Toulouse, CNRS, UPS, Toulouse INP, Castanet-Tolosan, France., Callot C; INRAE, CNRGV French Plant Genomic Resource Center, Castanet-Tolosan, France., Dufau I; INRAE, CNRGV French Plant Genomic Resource Center, Castanet-Tolosan, France., Cauet S; INRAE, CNRGV French Plant Genomic Resource Center, Castanet-Tolosan, France., Marande W; INRAE, CNRGV French Plant Genomic Resource Center, Castanet-Tolosan, France., Bulach T; INRAE, US1426, GeT-PlaGe, Genotoul, Castanet-Tolosan, France., Suin A; INRAE, US1426, GeT-PlaGe, Genotoul, Castanet-Tolosan, France., Masson-Boivin C; LIPME, Université de Toulouse, INRAE, CNRS, Castanet-Tolosan, France., Remigi P; LIPME, Université de Toulouse, INRAE, CNRS, Castanet-Tolosan, France. philippe.remigi@inrae.fr., Delaux PM; Laboratoire de Recherche en Sciences Végétales (LRSV), Université de Toulouse, CNRS, UPS, Toulouse INP, Castanet-Tolosan, France. pierre-marc.delaux@cnrs.fr., Capela D; LIPME, Université de Toulouse, INRAE, CNRS, Castanet-Tolosan, France. delphine.capela@inrae.fr.
Jazyk: angličtina
Zdroj: Nature plants [Nat Plants] 2023 Jul; Vol. 9 (7), pp. 1067-1080. Date of Electronic Publication: 2023 Jun 15.
DOI: 10.1038/s41477-023-01441-w
Abstrakt: Symbiotic interactions such as the nitrogen-fixing root nodule symbiosis (RNS) have structured ecosystems during the evolution of life. Here we aimed at reconstructing ancestral and intermediate steps that shaped RNS observed in extant flowering plants. We compared the symbiotic transcriptomic responses of nine host plants, including the mimosoid legume Mimosa pudica for which we assembled a chromosome-level genome. We reconstructed the ancestral RNS transcriptome composed of most known symbiotic genes together with hundreds of novel candidates. Cross-referencing with transcriptomic data in response to experimentally evolved bacterial strains with gradual symbiotic proficiencies, we found the response to bacterial signals, nodule infection, nodule organogenesis and nitrogen fixation to be ancestral. By contrast, the release of symbiosomes was associated with recently evolved genes encoding small proteins in each lineage. We demonstrate that the symbiotic response was mostly in place in the most recent common ancestor of the RNS-forming species more than 90 million years ago.
(© 2023. The Author(s).)
Databáze: MEDLINE
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