Allopolyploids are formed by interspecific hybridization and whole genome duplication, with the resulting organism contains multiple distinct subgenomes in one nucleus. Subgenomic interactions result in massive genetic and epigenetic reconstruction, contributing to variable phenotypic traits noted in newly formed allopolyploids. To better understand these mechanisms in the context of molecular biology, evolution, and plant breeding, plant biologists study the model organism Brassica napus (farmed as canola or oilseed rape). With white-flowering and yellow-flowering progenitors, flower color phenotype of B. napus presents an opportunity to examine subgenomic interactions. CAROTENOID CLEAVAGE DIOXYGENASE 4 (CCD4) is known to play a major role in determining flower color phenotype of carotenoid-synthesizing angiosperms. Here, we investigate the genetic and epigenetic role of CCD4 orthologs and their role in flower color phenotype of B. napus.
","abstract_html":"<p>Allopolyploids are formed by interspecific hybridization and whole genome duplication, with the resulting organism contains multiple distinct subgenomes in one nucleus. Subgenomic interactions result in massive genetic and epigenetic reconstruction, contributing to variable phenotypic traits noted in newly formed allopolyploids. To better understand these mechanisms in the context of molecular biology, evolution, and plant breeding, plant biologists study the model organism <em>Brassica napus</em> (farmed as canola or oilseed rape). With white-flowering and yellow-flowering progenitors, flower color phenotype of <em>B. napus </em>presents an opportunity to examine subgenomic interactions. <em>CAROTENOID CLEAVAGE DIOXYGENASE</em> 4 (<em>CCD4</em>)<em> </em>is known to play a major role in determining flower color phenotype of carotenoid-synthesizing angiosperms. Here, we investigate the genetic and epigenetic role of <em>CCD4 </em>orthologs and their role in flower color phenotype of <em>B. napus</em>.</p>","abstract_has_math":false,"creators":["Fogg, Leanne Denice"],"institution":null,"degree_name":"MS in Biological Sciences","degree_level":null,"degree_discipline":"Biological Sciences","degree_department":null,"school":null,"contributors":["Ed Himelblau"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2014,"date_issued":"2014-07-01T07:00:00Z","date_published":"2014-07-01T07:00:00Z","updated_at":"2026-07-24T01:32:37Z","subjects":["polyploid","petal color","ortholog","genetics","carotenoid cleavage dioxygenase 4","CCD4","carotenoids","Life Sciences"],"languages":[],"rights":[],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["10.15368/theses.2014.133"],"render_values":[{"text":"10.15368/theses.2014.133","href":"https://doi.org/10.15368/theses.2014.133","code":true}]}]},"links":{"outbound_url":"https://digitalcommons.calpoly.edu/theses/1306","outbound_label":"Repository record","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Ed Himelblau"]},{"key":"dc:creator","label":"Author","values":["Fogg, Leanne Denice"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.available","label":"Dc Date Available","values":["2014-09-10T07:00:00Z"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Biological Sciences"]},{"key":"thesis:degree_name","label":"Degree Name","values":["MS in Biological Sciences"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["polyploid","petal color","ortholog","genetics","carotenoid cleavage dioxygenase 4","CCD4","carotenoids","Life Sciences"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["https://digitalcommons.calpoly.edu/theses/1306","10.15368/theses.2014.133"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["Allopolyploids are formed by interspecific hybridization and whole genome duplication, with the resulting organism contains multiple distinct subgenomes in one nucleus. Subgenomic interactions result in massive genetic and epigenetic reconstruction, contributing to variable phenotypic traits noted in newly formed allopolyploids. To better understand these mechanisms in the context of molecular biology, evolution, and plant breeding, plant biologists study the model organism Brassica napus (farmed as canola or oilseed rape). With white-flowering and yellow-flowering progenitors, flower color phenotype of B. napus presents an opportunity to examine subgenomic interactions. CAROTENOID CLEAVAGE DIOXYGENASE 4 (CCD4) is known to play a major role in determining flower color phenotype of carotenoid-synthesizing angiosperms. Here, we investigate the genetic and epigenetic role of CCD4 orthologs and their role in flower color phenotype of B. napus.
"]},{"key":"dc:title","label":"Title","values":["The Role of Carotenoid Cleavage Dioxygenase 4 in Flower Color of the Allopolyploid Brassica napus"]}]}],"canonical_facts":{"dc:contributor":["Ed Himelblau"],"dc:creator":["Fogg, Leanne Denice"],"dc:date.available":["2014-09-10T07:00:00Z"],"dc:description.abstract":["Allopolyploids are formed by interspecific hybridization and whole genome duplication, with the resulting organism contains multiple distinct subgenomes in one nucleus. Subgenomic interactions result in massive genetic and epigenetic reconstruction, contributing to variable phenotypic traits noted in newly formed allopolyploids. To better understand these mechanisms in the context of molecular biology, evolution, and plant breeding, plant biologists study the model organism Brassica napus (farmed as canola or oilseed rape). With white-flowering and yellow-flowering progenitors, flower color phenotype of B. napus presents an opportunity to examine subgenomic interactions. CAROTENOID CLEAVAGE DIOXYGENASE 4 (CCD4) is known to play a major role in determining flower color phenotype of carotenoid-synthesizing angiosperms. Here, we investigate the genetic and epigenetic role of CCD4 orthologs and their role in flower color phenotype of B. napus.
"],"dc:identifier":["https://digitalcommons.calpoly.edu/theses/1306","10.15368/theses.2014.133"],"dc:subject":["polyploid","petal color","ortholog","genetics","carotenoid cleavage dioxygenase 4","CCD4","carotenoids","Life Sciences"],"dc:title":["The Role of Carotenoid Cleavage Dioxygenase 4 in Flower Color of the Allopolyploid Brassica napus"],"thesis:degree_discipline":["Biological Sciences"],"thesis:degree_name":["MS in Biological Sciences"]},"updated_at":"2026-07-24T01:32:37Z"}