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Title: Evolution of zygomycete secretomes and the origins of terrestrial fungal ecologies

Journal Article · · iScience
ORCiD logo [1];  [2];  [3];  [3];  [3];  [3];  [4];  [5];  [4];  [6];  [7];  [6];  [4];  [3];  [3];  [3];  [8];  [3];  [9];  [3] more »;  [5];  [3];  [5];  [10];  [11];  [12];  [4] « less
  1. Oregon State University, Corvallis, OR (United States); Yale-NUS College (Singapore)
  2. University of California, Riverside, CA (United States); University of Toronto Scarborough (Canada)
  3. USDOE Joint Genome Institute (JGI), Berkeley, CA (United States)
  4. Oregon State University, Corvallis, OR (United States)
  5. University of Florida, Gainesville, FL (United States)
  6. Michigan State University, East Lansing, MI (United States)
  7. Massachusetts Institute of Technology (MIT), Cambridge, MA (United States); Harvard University, Cambridge, MA (United States)
  8. University of Montreal, QC (Canada)
  9. US Department of Agriculture (USDA), Peoria, IL (United States)
  10. Concordia University, Montreal (Canada)
  11. USDOE Joint Genome Institute (JGI), Berkeley, CA (United States); University of California, Berkeley, CA (United States)
  12. University of California, Riverside, CA (United States)

Fungi survive in diverse ecological niches by secreting proteins and other molecules into the environment to acquire food and interact with various biotic and abiotic stressors. Fungal secretome content is, therefore, believed to be tightly linked to fungal ecologies. We sampled 132 genomes from the early-diverging terrestrial fungal lineage zygomycetes (Mucoromycota and Zoopagomycota) and characterized their secretome composition. Our analyses revealed that phylogeny played an important role in shaping the secretome composition of zygomycete fungi with trophic mode contributing a smaller amount. Reconstruction of the evolution of secreted digestive enzymes revealed lineage-specific expansions, indicating that Mucoromycota and Zoopagomycota followed different trajectories early in their evolutionary history. We identified the presence of multiple pathogenicity-related proteins in the lineages known as saprotrophs, suggesting that either the ecologies of these fungi are incompletely known, and/or that these pathogenicity-related proteins have important functions associated with saprotrophic ecologies, both of which invite further investigation.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
National Institutes of Health (NIH); National Science Foundation (NSF); USDOE Office of Science (SC)
Grant/Contract Number:
AC02-05CH11231
OSTI ID:
1907592
Journal Information:
iScience, Journal Name: iScience Journal Issue: 8 Vol. 25; ISSN 2589-0042
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

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