Article
 

Comparative Genome Structure, Secondary Metabolite, and Effector Coding Capacity across Cochliobolus Pathogens

Public Deposited

Downloadable Content

Download PDF
https://ir.library.oregonstate.edu/concern/articles/wh246s85s

Descriptions

Attribute NameValues
Creator
Abstract
  • The genomes of five Cochliobolus heterostrophus strains, two Cochliobolus sativus strains, three additional Cochliobolus species (Cochliobolus victoriae, Cochliobolus carbonum, Cochliobolus miyabeanus), and closely related Setosphaeria turcica were sequenced at the Joint Genome Institute (JGI). The datasets were used to identify SNPs between strains and species, unique genomic regions, core secondary metabolism genes, and small secreted protein (SSP) candidate effector encoding genes with a view towards pinpointing structural elements and gene content associated with specificity of these closely related fungi to different cereal hosts. Whole-genome alignment shows that three to five percent of each genome differs between strains of the same species, while a quarter of each genome differs between species. On average, SNP counts among field isolates of the same C. heterostrophus species are more than 25x higher than those between inbred lines and 50x lower than SNPs between Cochliobolus species. The suites of nonribosomal peptide synthetase (NRPS), polyketide synthase (PKS), and SSP-encoding genes are astoundingly diverse among species but remarkably conserved among isolates of the same species, whether inbred or field strains, except for defining examples that map to unique genomic regions. Functional analysis of several strain-unique PKSs and NRPSs reveal a strong correlation with a role in virulence.
License
Resource Type
DOI
Date Available
Date Issued
Citation
  • Condon BJ, Leng Y, Wu D, Bushley KE, Ohm RA,... (2013) Comparative Genome Structure, Secondary Metabolite, and Effector Coding Capacity across Cochliobolus Pathogens. PLoS Genetics 9(1): e1003233. doi:10.1371/journal.pgen.1003233
Journal Title
Journal Volume
  • 9
Journal Issue/Number
  • 1
Academic Affiliation
Rights Statement
Funding Statement (additional comments about funding)
  • The work conducted by the U.S. Department of Energy Joint Genome Institute is supported by the Office of Science of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231. Partial support is provided by the Triticeae-CAP project (2011-68002-30029) from the USDA National Institute of Food and Agriculture to SZ and the Lieberman-Okinow Endowment of the University of Minnesota to BJS. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.
Publisher
Peer Reviewed
Language
Replaces

Relationships

Parents:

This work has no parents.

Items

Thumbnail Title Date Uploaded Visibility Actions
file details BushleyKathrynEBotanyPlantPathologyComnparativeGenomeStructure.pdf 2017-07-10 Public Download