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Open Access Publications from the University of California

Genome Sequence of the Chestnut Blight Fungus Cryphonectria parasitica EP155: A Fundamental Resource for an Archetypical Invasive Plant Pathogen.

  • Author(s): Crouch, Jo Anne
  • Dawe, Angus
  • Aerts, Andrea
  • Barry, Kerrie
  • Churchill, Alice CL
  • Grimwood, Jane
  • Hillman, Bradley I
  • Milgroom, Michael G
  • Pangilinan, Jasmyn
  • Smith, Myron
  • Salamov, Asaf
  • Schmutz, Jeremy
  • Yadav, Jagjit S
  • Grigoriev, Igor V
  • Nuss, Donald L
  • et al.

Cryphonectria parasitica is the causal agent of chestnut blight, a fungal disease that almost entirely eliminated mature American chestnut from North America over a 50-year period. Here, we formally report the genome of C. parasitica EP155 using a Sanger shotgun sequencing approach. After finishing and integration with simple-sequence repeat markers, the assembly was 43.8 Mb in 26 scaffolds (L50 = 5; N50 = 4.0Mb). Eight chromosomes are predicted: five scaffolds have two telomeres and six scaffolds have one telomere sequence. In total, 11,609 gene models were predicted, of which 85% show similarities to other proteins. This genome resource has already increased the utility of a fundamental plant pathogen experimental system through new understanding of the fungal vegetative incompatibility system, with significant implications for enhancing mycovirus-based biological control.

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