{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/72612"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/72612","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Variation and Divergence of Repetitive DNA Sequences With Partial Identity to the Knob Sequence in Tripsacum and Zea","abstract":"Sequences with various levels of homology to knob have been isolated from T. dactyloides. These sequences have various degrees of cross-hybridization to knob and are apparently arranged differently in the genome as ascertained by southern blotting. Phylogenetic variation of these sequences indicates that although major features of these repeats have been conserved throughout Tripsacum and Zea, subsets of these repeats have gone through various amplification cycles.","abstract_html":"Sequences with various levels of homology to knob have been isolated from T. dactyloides. These sequences have various degrees of cross-hybridization to knob and are apparently arranged differently in the genome as ascertained by southern blotting. Phylogenetic variation of these sequences indicates that although major features of these repeats have been conserved throughout Tripsacum and Zea, subsets of these repeats have gone through various amplification cycles.","abstract_has_math":false,"creators":["Stockton, Tamalyn Kay"],"institution":"University of Illinois at Urbana-Champaign","degree_name":"Ph.D.","degree_level":"Dissertation","degree_discipline":"Agronomy","degree_department":null,"school":null,"contributors":["Hepburn, Angus G."],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2014,"date_issued":"2014-12-17T23:49:55Z","date_published":"2014-12-17T23:49:55Z","updated_at":"2026-07-22T22:26:07Z","subjects":["Biology, Molecular","Biology, Botany","Biology, Genetics"],"languages":[],"rights":[],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["(UMI)AAI9305706"],"render_values":[{"text":"(UMI)AAI9305706","href":null,"code":true}]}]},"links":{"outbound_url":"http://hdl.handle.net/2142/72612","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Hepburn, Angus G."]},{"key":"dc:creator","label":"Author","values":["Stockton, Tamalyn Kay"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2014-12-17T23:49:55Z","10000-01-01","1992"]},{"key":"dc:type","label":"Dc Type","values":["text"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Agronomy"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Dissertation"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Ph.D."]},{"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":["Biology, Molecular","Biology, Botany","Biology, Genetics"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["http://hdl.handle.net/2142/72612","(UMI)AAI9305706"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Sequences with various levels of homology to knob have been isolated from T. dactyloides. These sequences have various degrees of cross-hybridization to knob and are apparently arranged differently in the genome as ascertained by southern blotting. Phylogenetic variation of these sequences indicates that although major features of these repeats have been conserved throughout Tripsacum and Zea, subsets of these repeats have gone through various amplification cycles.","The species specific hybridization pattern of knob DNA in Tripsacum dactyloides indicates that a subset of knob sequences containing an EcoRI site every 180 bp was amplified in this species and to a lesser extent in other Tripsacum species. These EcoRI restriction sites have not previously been reported in knob sequences (Dennis and Peacock, 1984; Viotti et al., 1985).","Another satellite sequence contains a 4.3 kb major HindIII restriction fragment that has been conserved throughout Tripsacum and Zea. However, subsets of this repeat containing differing EcoRI sites have been variously amplified in the taxa examined. Interestingly, the 112bp of this repeat that was sequenced has higher homology (65%) to the radish satellite (Grellet et al., 1986), than to knob (no alignment was able to be made).","The results of this study should be informative on the structure and evolution of the maize genome.","Made available in DSpace on 2014-12-17T23:49:55Z (GMT). No. of bitstreams: 1 9305706.pdf: 3104468 bytes, checksum: 19500da55b3172769db58308d6e39875 (MD5) Previous issue date: 1992","Embargo set by: Seth Robbins for item 72780 Lift date: Forever Reason: Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs","Restricted to the U of I community indefinitely during batch ingest of legacy ETDs","U of I Only","89 p.","Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 1992."]},{"key":"dc:title","label":"Title","values":["Variation and Divergence of Repetitive DNA Sequences With Partial Identity to the Knob Sequence in Tripsacum and Zea"]}]}],"canonical_facts":{"dc:contributor":["Hepburn, Angus G."],"dc:creator":["Stockton, Tamalyn Kay"],"dc:date":["2014-12-17T23:49:55Z","10000-01-01","1992"],"dc:description":["Sequences with various levels of homology to knob have been isolated from T. dactyloides. These sequences have various degrees of cross-hybridization to knob and are apparently arranged differently in the genome as ascertained by southern blotting. Phylogenetic variation of these sequences indicates that although major features of these repeats have been conserved throughout Tripsacum and Zea, subsets of these repeats have gone through various amplification cycles.","The species specific hybridization pattern of knob DNA in Tripsacum dactyloides indicates that a subset of knob sequences containing an EcoRI site every 180 bp was amplified in this species and to a lesser extent in other Tripsacum species. These EcoRI restriction sites have not previously been reported in knob sequences (Dennis and Peacock, 1984; Viotti et al., 1985).","Another satellite sequence contains a 4.3 kb major HindIII restriction fragment that has been conserved throughout Tripsacum and Zea. However, subsets of this repeat containing differing EcoRI sites have been variously amplified in the taxa examined. Interestingly, the 112bp of this repeat that was sequenced has higher homology (65%) to the radish satellite (Grellet et al., 1986), than to knob (no alignment was able to be made).","The results of this study should be informative on the structure and evolution of the maize genome.","Made available in DSpace on 2014-12-17T23:49:55Z (GMT). No. of bitstreams: 1 9305706.pdf: 3104468 bytes, checksum: 19500da55b3172769db58308d6e39875 (MD5) Previous issue date: 1992","Embargo set by: Seth Robbins for item 72780 Lift date: Forever Reason: Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs","Restricted to the U of I community indefinitely during batch ingest of legacy ETDs","U of I Only","89 p.","Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 1992."],"dc:identifier":["http://hdl.handle.net/2142/72612","(UMI)AAI9305706"],"dc:subject":["Biology, Molecular","Biology, Botany","Biology, Genetics"],"dc:title":["Variation and Divergence of Repetitive DNA Sequences With Partial Identity to the Knob Sequence in Tripsacum and Zea"],"dc:type":["text"],"thesis:degree_discipline":["Agronomy"],"thesis:degree_level":["Dissertation"],"thesis:degree_name":["Ph.D."],"thesis:institution_name":["University of Illinois at Urbana-Champaign"]},"updated_at":"2026-07-22T22:26:07Z"}