Identification and Fine-Mapping of Quantitative Trait Loci Controlling Plant Height in Central European Winter Triticale (×<i>Triticosecale</i> Wittmack)
The quantitatively inherited trait plant height is routinely evaluated in triticale breeding programs as it substantially influences lodging and disease susceptibility, is a main contributor to biomass yield, and is required to improve hybrid seed production by fine-tuning plant height in the female...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-08-01
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| Series: | Plants |
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| Online Access: | https://www.mdpi.com/2223-7747/10/8/1592 |
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| author | Johannes Trini Hans Peter Maurer Jan Eric Neuweiler Tobias Würschum |
| author_facet | Johannes Trini Hans Peter Maurer Jan Eric Neuweiler Tobias Würschum |
| author_sort | Johannes Trini |
| collection | DOAJ |
| description | The quantitatively inherited trait plant height is routinely evaluated in triticale breeding programs as it substantially influences lodging and disease susceptibility, is a main contributor to biomass yield, and is required to improve hybrid seed production by fine-tuning plant height in the female and male parental pools in hybrid breeding programs. In this study, we evaluated a panel of 846 diverse Central European triticale genotypes to dissect the genetic architecture underlying plant height by genome-wide association mapping. This revealed three medium- to large-effect QTL on chromosomes 5A, 4B, and 5R. Genetic and physical fine-mapping of the putative QTL revealed that the QTL on chromosome 5R most likely corresponds to <i>Ddw1</i> and that the QTL on chromosome 5A is likely to be <i>Rht12</i>. Furthermore, we observed a temporal trend in registered cultivars with a decreasing plant height during the past decades, accompanied by an increasing use of the height-reducing alleles at the identified QTL. In summary, our results shed new light on the genetic control of plant height in triticale and open new avenues for future improvement by breeding. |
| first_indexed | 2024-03-10T08:28:36Z |
| format | Article |
| id | doaj.art-ac81bdb6e2e14013bf28a3eb15d837ff |
| institution | Directory Open Access Journal |
| issn | 2223-7747 |
| language | English |
| last_indexed | 2024-03-10T08:28:36Z |
| publishDate | 2021-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Plants |
| spelling | doaj.art-ac81bdb6e2e14013bf28a3eb15d837ff2023-11-22T09:18:37ZengMDPI AGPlants2223-77472021-08-01108159210.3390/plants10081592Identification and Fine-Mapping of Quantitative Trait Loci Controlling Plant Height in Central European Winter Triticale (×<i>Triticosecale</i> Wittmack)Johannes Trini0Hans Peter Maurer1Jan Eric Neuweiler2Tobias Würschum3State Plant Breeding Institute, University of Hohenheim, 70599 Stuttgart, GermanyState Plant Breeding Institute, University of Hohenheim, 70599 Stuttgart, GermanyState Plant Breeding Institute, University of Hohenheim, 70599 Stuttgart, GermanyInstitute of Plant Breeding, Seed Science and Population Genetics, University of Hohenheim, 70599 Stuttgart, GermanyThe quantitatively inherited trait plant height is routinely evaluated in triticale breeding programs as it substantially influences lodging and disease susceptibility, is a main contributor to biomass yield, and is required to improve hybrid seed production by fine-tuning plant height in the female and male parental pools in hybrid breeding programs. In this study, we evaluated a panel of 846 diverse Central European triticale genotypes to dissect the genetic architecture underlying plant height by genome-wide association mapping. This revealed three medium- to large-effect QTL on chromosomes 5A, 4B, and 5R. Genetic and physical fine-mapping of the putative QTL revealed that the QTL on chromosome 5R most likely corresponds to <i>Ddw1</i> and that the QTL on chromosome 5A is likely to be <i>Rht12</i>. Furthermore, we observed a temporal trend in registered cultivars with a decreasing plant height during the past decades, accompanied by an increasing use of the height-reducing alleles at the identified QTL. In summary, our results shed new light on the genetic control of plant height in triticale and open new avenues for future improvement by breeding.https://www.mdpi.com/2223-7747/10/8/1592triticaleplant heightgenome-wide association mappingfine-mappingblast<i>Ddw1</i> |
| spellingShingle | Johannes Trini Hans Peter Maurer Jan Eric Neuweiler Tobias Würschum Identification and Fine-Mapping of Quantitative Trait Loci Controlling Plant Height in Central European Winter Triticale (×<i>Triticosecale</i> Wittmack) Plants triticale plant height genome-wide association mapping fine-mapping blast <i>Ddw1</i> |
| title | Identification and Fine-Mapping of Quantitative Trait Loci Controlling Plant Height in Central European Winter Triticale (×<i>Triticosecale</i> Wittmack) |
| title_full | Identification and Fine-Mapping of Quantitative Trait Loci Controlling Plant Height in Central European Winter Triticale (×<i>Triticosecale</i> Wittmack) |
| title_fullStr | Identification and Fine-Mapping of Quantitative Trait Loci Controlling Plant Height in Central European Winter Triticale (×<i>Triticosecale</i> Wittmack) |
| title_full_unstemmed | Identification and Fine-Mapping of Quantitative Trait Loci Controlling Plant Height in Central European Winter Triticale (×<i>Triticosecale</i> Wittmack) |
| title_short | Identification and Fine-Mapping of Quantitative Trait Loci Controlling Plant Height in Central European Winter Triticale (×<i>Triticosecale</i> Wittmack) |
| title_sort | identification and fine mapping of quantitative trait loci controlling plant height in central european winter triticale i triticosecale i wittmack |
| topic | triticale plant height genome-wide association mapping fine-mapping blast <i>Ddw1</i> |
| url | https://www.mdpi.com/2223-7747/10/8/1592 |
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