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Vertical and horizontal gene transfer shaped plant colonization and biomass degradation in the fungal genus Armillaria

Journal Article · · Nature Microbiology
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  1. Biological Research Centre (BRC), Szeged (Hungary); Univ. of Szeged (Hungary)
  2. Univ. of Sopron (Hungary)
  3. Western Sydney Univ., Richmond, NSW (Australia); Elizabeth Macarthur Agricultural Institute (EMAI), Menangle, NSW (Australia)
  4. Biological Research Centre (BRC), Szeged (Hungary)
  5. Soochow Univ., Taipei (Taiwan); Academia Sinica, Taipei (Taiwan)
  6. Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States). USDOE Joint Genome Institute (JGI)
  7. Western Sydney Univ., Richmond, NSW (Australia)
  8. Univ. of Szeged (Hungary)
  9. Aix-Marseille Univ., Marseille (France); French National Research Institute for Agriculture, Food and Environment (INRAE), Marseille (France); Centre National de la Recherche Scientifique (CNRS) (France)
  10. Technical Univ. of Denmark, Lyngby (Denmark); King Abdulaziz Univ., Jeddah (Saudi Arabia)
  11. Universite de Lorraine, Champenoux (France); French National Research Institute for Agriculture, Food and Environment (INRAE), Champenoux (France)
  12. Univ. of Copenhagen (Denmark); Univ. of Oslo (Norway)
  13. Swiss Federal Research Inst. (WSL), Birmensdorf (Switzerland)
  14. Univ. of Bristol (United Kingdom)
  15. Univ. of Szeged (Hungary); Univ. of Sopron (Hungary)
  16. Elizabeth Macarthur Agricultural Institute (EMAI), Menangle, NSW (Australia)
  17. Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States); Univ. of California, Berkeley, CA (United States)
  18. Academia Sinica, Taipei (Taiwan)
  19. The Ohio State Univ., Columbus, OH (United States)
  20. Western Sydney Univ. Richmond, NSW (Australia)
+ Show Author Affiliations
The fungal genus Armillaria contains necrotrophic pathogens and some of the largest terrestrial organisms that cause tremendous losses in diverse ecosystems, yet how they evolved pathogenicity in a clade of dominantly non-pathogenic wood degraders remains elusive. Here we show that Armillaria species, in addition to gene duplications and de novo gene origins, acquired at least 1,025 genes via 124 horizontal gene transfer events, primarily from Ascomycota. Horizontal gene transfer might have affected plant biomass degrading and virulence abilities of Armillaria, and provides an explanation for their unusual, soft rot-like wood decay strategy. Furthermore, combined multi-species expression data revealed extensive regulation of horizontally acquired and wood-decay related genes, putative virulence factors and two novel conserved pathogenicity-induced small secreted proteins, which induced necrosis in planta. Overall, this study details how evolution knitted together horizontally and vertically inherited genes in complex adaptive traits of plant biomass degradation and pathogenicity in important fungal pathogens.
Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
Eotvos Lorand Research Network (ELKH); European Research Council (ERC); Hungarian National Research, Development, and Innovation Office (NRDI); USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities (SUF); USDOE Office of Science (SC), Biological and Environmental Research (BER)
Grant/Contract Number:
AC02-05CH11231
OSTI ID:
2294050
Journal Information:
Nature Microbiology, Journal Name: Nature Microbiology Journal Issue: 9 Vol. 8; ISSN 2058-5276
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English

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Figures / Tables (5)

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