Identification of Genetic Variation between Obligate Plant Pathogens Pseudoperonospora cubensis and P-humuli Using RNA Sequencing and Genotyping-By-Sequencing Public Deposited

http://ir.library.oregonstate.edu/concern/articles/6t053h86r

To the best of our knowledge, one or more authors of this paper were federal employees when contributing to this work. This is the publisher’s final pdf. The article was published by the Public Library of Science and is in the public domain. The published article can be found at:  http://www.plosone.org/.

Supporting information is available online at:  http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0143665

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  • RNA sequencing (RNA-seq) and genotyping-by-sequencing (GBS) were used for single nucleotide polymorphism (SNP) identification from two economically important obligate plant pathogens, Pseudoperonospora cubensis and P. humuli. Twenty isolates of P. cubensis and 19 isolates of P. humuli were genotyped using RNA-seq and GBS. Principle components analysis (PCA) of each data set showed genetic separation between the two species. Additionally, results supported previous findings that P. cubensis isolates from squash are genetically distinct from cucumber and cantaloupe isolates. A PCA-based procedure was used to identify SNPs correlated with the separation of the two species, with 994 and 4,231 PCA-correlated SNPs found within the RNA-seq and GBS data, respectively. The corresponding unigenes (n = 800) containing these potential species-specific SNPs were then annotated and 135 putative pathogenicity genes, including 3 effectors, were identified. The characterization of genes containing SNPs differentiating these two closely related downy mildew species may contribute to the development of improved detection and diagnosis strategies and improve our understanding of host specificity pathways.
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  • Summers, C. F., Gulliford, C. M., Carlson, C. H., Lillis, J. A., Carlson, M. O., Cadle-Davidson, L., ... & Smart, C. D. (2015). Identification of Genetic Variation between Obligate Plant Pathogens Pseudoperonospora cubensis and P. humuli Using RNA Sequencing and Genotyping-By-Sequencing. PLoS ONE, 10(11), e0143665. doi:10.1371/journal.pone.0143665
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  • description.provenance : Approved for entry into archive by Patricia Black(patricia.black@oregonstate.edu) on 2016-01-07T20:43:43Z (GMT) No. of bitstreams: 2 license_rdf: 1089 bytes, checksum: 0a703d871bf062c5fdc7850b1496693b (MD5) GentDavidBotanyPlantPathIdentificationGeneticVariation.pdf: 1062284 bytes, checksum: 8576088efa45be93f403e6833d7f4ee3 (MD5)
  • description.provenance : Submitted by Patricia Black (patricia.black@oregonstate.edu) on 2016-01-07T20:43:07Z No. of bitstreams: 2 license_rdf: 1089 bytes, checksum: 0a703d871bf062c5fdc7850b1496693b (MD5) GentDavidBotanyPlantPathIdentificationGeneticVariation.pdf: 1062284 bytes, checksum: 8576088efa45be93f403e6833d7f4ee3 (MD5)
  • description.provenance : Made available in DSpace on 2016-01-07T20:43:43Z (GMT). No. of bitstreams: 2 license_rdf: 1089 bytes, checksum: 0a703d871bf062c5fdc7850b1496693b (MD5) GentDavidBotanyPlantPathIdentificationGeneticVariation.pdf: 1062284 bytes, checksum: 8576088efa45be93f403e6833d7f4ee3 (MD5) Previous issue date: 2015-11-23

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