{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/101321"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/101321","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Host Resistance to Goss's Wilt of Maize","abstract":"The student, Julian Cooper, submitted this Thesis for approval on 2018-04-16 at 09:45.","abstract_html":"The student, Julian Cooper, submitted this Thesis for approval on 2018-04-16 at 09:45.","abstract_has_math":false,"creators":["Cooper, Julian Scott"],"institution":"University of Illinois at Urbana-Champaign","degree_name":"M.S.","degree_level":"Thesis","degree_discipline":"Crop Sciences","degree_department":null,"school":null,"contributors":["Jamann, Tiffany"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2018,"date_issued":"2018-09-04T20:47:15Z","date_published":"2018-09-04T20:47:15Z","updated_at":"2026-07-22T22:24:38Z","subjects":["maize, QTL"],"languages":["en"],"rights":["Copyright 2018 Julian Cooper"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/2142/101321","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Jamann, Tiffany"]},{"key":"dc:creator","label":"Author","values":["Cooper, Julian Scott"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2018-09-04T20:47:15Z","2020-09-05T09:15:23Z","2018-04-16","2018-05"]},{"key":"dc:type","label":"Dc Type","values":["text"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Crop Sciences"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Thesis"]},{"key":"thesis:degree_name","label":"Degree Name","values":["M.S."]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["University of Illinois at Urbana-Champaign"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["maize, QTL"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["en"]},{"key":"dc:rights","label":"Dc Rights","values":["Copyright 2018 Julian Cooper"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["http://hdl.handle.net/2142/101321"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["The student, Julian Cooper, submitted this Thesis for approval on 2018-04-16 at 09:45.","This Thesis was approved for publication on 2018-04-16 at 13:48.","DSpace SAF Submission Ingestion Package generated from Vireo submission #12265 on 2018-08-31 at 17:29:10","Made available in DSpace on 2018-09-04T20:47:15Z (GMT). No. of bitstreams: 2 COOPER-THESIS-2018.pdf: 1459403 bytes, checksum: ee30e97edf5c8fa882209fb764f0f823 (MD5) LICENSE.txt: 4210 bytes, checksum: 86858ad7554ee7b58bd7e131f68e91b7 (MD5) Previous issue date: 2018-04-16","Embargo set by: Seth Robbins for item 107406 Lift date: 2020-09-04T20:47:38Z Reason: Author requested closed access (OA after 2yrs) in Vireo ETD system","Embargo set by: Seth Robbins for item 107406 Lift date: 2020-09-04T20:50:11Z Reason: Author requested closed access (OA after 2yrs) in Vireo ETD system","Since its discovery in 1969, Goss’s wilt, a foliar blight and vascular wilt disease caused by the gram-positive bacterium Clavibacter michiganensis subsp. nebraskensis (Cmn), has emerged as one of the top four diseases of maize in the United States and Canada. No source of complete resistance has been described for Goss’s wilt and little is known about the genetic and mechanistic basis of host resistance to Cmn. The objective of this study was to perform a linkage mapping and genome-wide association study (GWAS) to identify regions of the genome associated with Goss’s wilt resistance. Additionally, we sought to use genomic prediction models to evaluate the use of genomic selection in predicting Goss’s wilt phenotypes in a panel of diverse maize lines. Within the Intermated B73 x Mo17 (IBM) population and three disease resistant introgression lines (DRIL) populations: B73 x Mo17, Mo17 x B73, and NC344 x Oh7B, we were able to both identify novel QTL and confirm previous findings. In a GWAS of the Goodman maize diversity panel, we were unable to identify any variants significantly associated with Goss’s wilt. However, using genomic prediction, we were able to train a model with an accuracy of 0.6971. In addition, when evaluating the accuracy of our prediction model under reduced marker density, it was shown that only 10,000 single nucleotide polymorphisms, or ~20% of our total marker set, was necessary to achieve our control model’s prediction accuracy. This is the first report of genomic prediction for a bacterial disease of maize, and these results highlight the potential of genomic selection for disease resistance in maize.","Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2020-05-01","The student, Julian Cooper, accepted the attached license on 2018-04-16 at 09:40.","Limited Restriction Lifted for Item 107406 on 2020-09-05T09:15:23Z."]},{"key":"dc:format","label":"Dc Format","values":["application/pdf"]},{"key":"dc:title","label":"Title","values":["Host Resistance to Goss's Wilt of Maize"]}]}],"canonical_facts":{"dc:contributor":["Jamann, Tiffany"],"dc:creator":["Cooper, Julian Scott"],"dc:date":["2018-09-04T20:47:15Z","2020-09-05T09:15:23Z","2018-04-16","2018-05"],"dc:description":["The student, Julian Cooper, submitted this Thesis for approval on 2018-04-16 at 09:45.","This Thesis was approved for publication on 2018-04-16 at 13:48.","DSpace SAF Submission Ingestion Package generated from Vireo submission #12265 on 2018-08-31 at 17:29:10","Made available in DSpace on 2018-09-04T20:47:15Z (GMT). No. of bitstreams: 2 COOPER-THESIS-2018.pdf: 1459403 bytes, checksum: ee30e97edf5c8fa882209fb764f0f823 (MD5) LICENSE.txt: 4210 bytes, checksum: 86858ad7554ee7b58bd7e131f68e91b7 (MD5) Previous issue date: 2018-04-16","Embargo set by: Seth Robbins for item 107406 Lift date: 2020-09-04T20:47:38Z Reason: Author requested closed access (OA after 2yrs) in Vireo ETD system","Embargo set by: Seth Robbins for item 107406 Lift date: 2020-09-04T20:50:11Z Reason: Author requested closed access (OA after 2yrs) in Vireo ETD system","Since its discovery in 1969, Goss’s wilt, a foliar blight and vascular wilt disease caused by the gram-positive bacterium Clavibacter michiganensis subsp. nebraskensis (Cmn), has emerged as one of the top four diseases of maize in the United States and Canada. No source of complete resistance has been described for Goss’s wilt and little is known about the genetic and mechanistic basis of host resistance to Cmn. The objective of this study was to perform a linkage mapping and genome-wide association study (GWAS) to identify regions of the genome associated with Goss’s wilt resistance. Additionally, we sought to use genomic prediction models to evaluate the use of genomic selection in predicting Goss’s wilt phenotypes in a panel of diverse maize lines. Within the Intermated B73 x Mo17 (IBM) population and three disease resistant introgression lines (DRIL) populations: B73 x Mo17, Mo17 x B73, and NC344 x Oh7B, we were able to both identify novel QTL and confirm previous findings. In a GWAS of the Goodman maize diversity panel, we were unable to identify any variants significantly associated with Goss’s wilt. However, using genomic prediction, we were able to train a model with an accuracy of 0.6971. In addition, when evaluating the accuracy of our prediction model under reduced marker density, it was shown that only 10,000 single nucleotide polymorphisms, or ~20% of our total marker set, was necessary to achieve our control model’s prediction accuracy. This is the first report of genomic prediction for a bacterial disease of maize, and these results highlight the potential of genomic selection for disease resistance in maize.","Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2020-05-01","The student, Julian Cooper, accepted the attached license on 2018-04-16 at 09:40.","Limited Restriction Lifted for Item 107406 on 2020-09-05T09:15:23Z."],"dc:format":["application/pdf"],"dc:identifier":["http://hdl.handle.net/2142/101321"],"dc:language":["en"],"dc:rights":["Copyright 2018 Julian Cooper"],"dc:subject":["maize, QTL"],"dc:title":["Host Resistance to Goss's Wilt of Maize"],"dc:type":["text"],"thesis:degree_discipline":["Crop Sciences"],"thesis:degree_level":["Thesis"],"thesis:degree_name":["M.S."],"thesis:institution_name":["University of Illinois at Urbana-Champaign"]},"updated_at":"2026-07-22T22:24:38Z"}