Domestication in Real Time: The Curious Case of a Trigenomic Sunflower Population
This study chronicles the ongoing process to domesticate an interspecific trigenomic tetraploid hybrid sunflower derived from a series of interspecific crosses between <i>Helianthus annuus</i> and <i>Helianthus tuberosus</i>. The goal of this process is to develop a perennial...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2019-10-01
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| Series: | Agronomy |
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| Online Access: | https://www.mdpi.com/2073-4395/9/11/704 |
| _version_ | 1818726132250312704 |
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| author | Jill M. Ekar Kevin J. Betts Adam C. Herman Robert M. Stupar Donald L. Wyse Yaniv Brandvain Michael B. Kantar |
| author_facet | Jill M. Ekar Kevin J. Betts Adam C. Herman Robert M. Stupar Donald L. Wyse Yaniv Brandvain Michael B. Kantar |
| author_sort | Jill M. Ekar |
| collection | DOAJ |
| description | This study chronicles the ongoing process to domesticate an interspecific trigenomic tetraploid hybrid sunflower derived from a series of interspecific crosses between <i>Helianthus annuus</i> and <i>Helianthus tuberosus</i>. The goal of this process is to develop a perennial oilseed crop that can produce both high value vegetable oil and continuous ground-cover. Selection has focused on developing an ideotype with the domesticated morphology of <i>H. annuus</i> and the below-ground perennial features of <i>H. tuberosus</i>. The overarching challenge in the process of breeding and domesticating this interspecific perennial sunflower is overcoming obstacles associated with interploid meiosis in order to resolve a chromosomally stable hybrid population. As selection progresses through generations of intermating, there are improvements toward the desired ideotype, but selection efficiency is slowed by apparent antagonisms between annual- and perennial morphological targets and irregular meiosis which is especially problematic in a trigenomic tetraploid. This shows that keys toward perennial crop development through interspecific hybridization will be to capitalize on the abundant phenotypic variation within our population, achieve meiotic stability in order to maximize selection efficiency, and to break genetic correlations between annual and perennial traits. |
| first_indexed | 2024-12-17T21:53:20Z |
| format | Article |
| id | doaj.art-21e24bbd9401478882374cd597e1e49c |
| institution | Directory Open Access Journal |
| issn | 2073-4395 |
| language | English |
| last_indexed | 2024-12-17T21:53:20Z |
| publishDate | 2019-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Agronomy |
| spelling | doaj.art-21e24bbd9401478882374cd597e1e49c2022-12-21T21:31:11ZengMDPI AGAgronomy2073-43952019-10-0191170410.3390/agronomy9110704agronomy9110704Domestication in Real Time: The Curious Case of a Trigenomic Sunflower PopulationJill M. Ekar0Kevin J. Betts1Adam C. Herman2Robert M. Stupar3Donald L. Wyse4Yaniv Brandvain5Michael B. Kantar6Department of Plant and Microbial Biology, University of Minnesota, 123 Snyder Hall, 1475 Gortner Ave, Saint Paul, MN 55108, USADepartment of Agronomy and Plant Genetics, University of Minnesota, 411 Borlaug Hall, 1991 Upper Buford Circle, St. Paul, MN 55108, USADepartment of Plant and Microbial Biology, University of Minnesota, 123 Snyder Hall, 1475 Gortner Ave, Saint Paul, MN 55108, USADepartment of Agronomy and Plant Genetics, University of Minnesota, 411 Borlaug Hall, 1991 Upper Buford Circle, St. Paul, MN 55108, USADepartment of Agronomy and Plant Genetics, University of Minnesota, 411 Borlaug Hall, 1991 Upper Buford Circle, St. Paul, MN 55108, USADepartment of Plant and Microbial Biology, University of Minnesota, 123 Snyder Hall, 1475 Gortner Ave, Saint Paul, MN 55108, USADepartment of Tropical Plant & Soil Sciences, St. John Plant Science Lab, Room 102, University of Hawaii, 3190 Maile Way, Honolulu, HI 96822, USAThis study chronicles the ongoing process to domesticate an interspecific trigenomic tetraploid hybrid sunflower derived from a series of interspecific crosses between <i>Helianthus annuus</i> and <i>Helianthus tuberosus</i>. The goal of this process is to develop a perennial oilseed crop that can produce both high value vegetable oil and continuous ground-cover. Selection has focused on developing an ideotype with the domesticated morphology of <i>H. annuus</i> and the below-ground perennial features of <i>H. tuberosus</i>. The overarching challenge in the process of breeding and domesticating this interspecific perennial sunflower is overcoming obstacles associated with interploid meiosis in order to resolve a chromosomally stable hybrid population. As selection progresses through generations of intermating, there are improvements toward the desired ideotype, but selection efficiency is slowed by apparent antagonisms between annual- and perennial morphological targets and irregular meiosis which is especially problematic in a trigenomic tetraploid. This shows that keys toward perennial crop development through interspecific hybridization will be to capitalize on the abundant phenotypic variation within our population, achieve meiotic stability in order to maximize selection efficiency, and to break genetic correlations between annual and perennial traits.https://www.mdpi.com/2073-4395/9/11/704helianthuswide hybridizationperennial cropfertilitymeiosisideotypepolyploidydomestication |
| spellingShingle | Jill M. Ekar Kevin J. Betts Adam C. Herman Robert M. Stupar Donald L. Wyse Yaniv Brandvain Michael B. Kantar Domestication in Real Time: The Curious Case of a Trigenomic Sunflower Population Agronomy helianthus wide hybridization perennial crop fertility meiosis ideotype polyploidy domestication |
| title | Domestication in Real Time: The Curious Case of a Trigenomic Sunflower Population |
| title_full | Domestication in Real Time: The Curious Case of a Trigenomic Sunflower Population |
| title_fullStr | Domestication in Real Time: The Curious Case of a Trigenomic Sunflower Population |
| title_full_unstemmed | Domestication in Real Time: The Curious Case of a Trigenomic Sunflower Population |
| title_short | Domestication in Real Time: The Curious Case of a Trigenomic Sunflower Population |
| title_sort | domestication in real time the curious case of a trigenomic sunflower population |
| topic | helianthus wide hybridization perennial crop fertility meiosis ideotype polyploidy domestication |
| url | https://www.mdpi.com/2073-4395/9/11/704 |
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