An ancestral signalling pathway is conserved in plant lineages forming intracellular symbioses
| Autor: | Ulf Lagercrantz, Duchesse Lacour Mbadinga Mbadinga, Anna-Malin Linde, Nicolas Vigneron, Pierre-Marc Delaux, D. Magnus Eklund, Mélanie K. Rich, Guru V. Radhakrishnan, Shifeng Cheng, Cyril Libourel, Jitender Cheema, Fay-Wei Li, Tatiana Vernié, Ludovic Cottret, Jean Keller, Hélène San Clemente, Giles E. D. Oldroyd, Gane Ka-Shu Wong |
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| Rok vydání: | 2019 |
| Předmět: |
0106 biological sciences
Cyanobacteria 0303 health sciences biology Microorganism fungi food and beverages 15. Life on land biology.organism_classification 01 natural sciences 03 medical and health sciences Symbiosis Evolutionary biology Ectomycorrhizae Extracellular Colonization Intracellular Bacteria 030304 developmental biology 010606 plant biology & botany |
| Popis: | Plants are the foundation of terrestrial ecosystems and their colonization of land was facilitated by mutualistic associations with arbuscular mycorrhizal fungi. Following that founding event, plant diversification has led to the emergence of a tremendous diversity of mutualistic symbioses with microorganisms, ranging from extracellular associations to the most intimate intracellular associations, where fungal or bacterial symbionts are hosted inside plant cells. Through analysis of 271 transcriptomes and 122 plant genomes, we demonstrate that the common symbiosis signalling pathway controlling the association with arbuscular mycorrhizal fungi and with nitrogen-fixing bacteria specifically co-evolved with intracellular endosymbioses, including ericoid and orchid mycorrhizae in angiosperms and ericoid-like associations of bryophytes. In contrast, species forming exclusively extracellular symbioses like ectomycorrhizae or associations with cyanobacteria have lost this signalling pathway. This work unifies intracellular symbioses, revealing conservation in their evolution across 450 million years of plant diversification. |
| Databáze: | OpenAIRE |
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