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Agronomic Trait Analysis and Genetic Mapping of a New Wheat Semidwarf Gene Rht-SN33d
Plant height is a key agronomic trait that is closely to the plant morphology and lodging resistance in wheat. However, at present, the few dwarf genes widely used in wheat breeding have narrowed wheat genetic diversity. In this study, we selected a semi-dwarf wheat mutant dwarf33 that exhibits decr...
Autores principales: | , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9820066/ https://www.ncbi.nlm.nih.gov/pubmed/36614025 http://dx.doi.org/10.3390/ijms24010583 |
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author | Wang, Chaojie Zhang, Lili Xie, Yongdun Irshad, Ahsan Guo, Huijun Gu, Jiayu Zhao, Linshu Xiong, Hongchun Zhao, Shirong Wang, Chengshe Liu, Luxiang |
author_facet | Wang, Chaojie Zhang, Lili Xie, Yongdun Irshad, Ahsan Guo, Huijun Gu, Jiayu Zhao, Linshu Xiong, Hongchun Zhao, Shirong Wang, Chengshe Liu, Luxiang |
author_sort | Wang, Chaojie |
collection | PubMed |
description | Plant height is a key agronomic trait that is closely to the plant morphology and lodging resistance in wheat. However, at present, the few dwarf genes widely used in wheat breeding have narrowed wheat genetic diversity. In this study, we selected a semi-dwarf wheat mutant dwarf33 that exhibits decreased plant height with little serious negative impact on other agronomic traits. Genetic analysis and mutant gene mapping indicated that dwarf33 contains a new recessive semi-dwarf gene Rht-SN33d, which was mapped into ~1.3 Mb interval on the 3DL chromosome. The gibberellin metabolism-related gene TraesCS3D02G542800, which encodes gibberellin 2-beta-dioxygenase, is considered a potential candidate gene of Rht-SN33d. Rht-SN33d reduced plant height by approximately 22.4% in mutant dwarf33. Further study revealed that shorter stem cell length may be the main factor causing plant height decrease. In addition, the coleoptile length of dwarf33 was just 9.3% shorter than that of wild-type Shaannong33. These results will help to expand our understanding of new mechanisms of wheat height regulation, and obtain new germplasm for wheat improvement. |
format | Online Article Text |
id | pubmed-9820066 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-98200662023-01-07 Agronomic Trait Analysis and Genetic Mapping of a New Wheat Semidwarf Gene Rht-SN33d Wang, Chaojie Zhang, Lili Xie, Yongdun Irshad, Ahsan Guo, Huijun Gu, Jiayu Zhao, Linshu Xiong, Hongchun Zhao, Shirong Wang, Chengshe Liu, Luxiang Int J Mol Sci Article Plant height is a key agronomic trait that is closely to the plant morphology and lodging resistance in wheat. However, at present, the few dwarf genes widely used in wheat breeding have narrowed wheat genetic diversity. In this study, we selected a semi-dwarf wheat mutant dwarf33 that exhibits decreased plant height with little serious negative impact on other agronomic traits. Genetic analysis and mutant gene mapping indicated that dwarf33 contains a new recessive semi-dwarf gene Rht-SN33d, which was mapped into ~1.3 Mb interval on the 3DL chromosome. The gibberellin metabolism-related gene TraesCS3D02G542800, which encodes gibberellin 2-beta-dioxygenase, is considered a potential candidate gene of Rht-SN33d. Rht-SN33d reduced plant height by approximately 22.4% in mutant dwarf33. Further study revealed that shorter stem cell length may be the main factor causing plant height decrease. In addition, the coleoptile length of dwarf33 was just 9.3% shorter than that of wild-type Shaannong33. These results will help to expand our understanding of new mechanisms of wheat height regulation, and obtain new germplasm for wheat improvement. MDPI 2022-12-29 /pmc/articles/PMC9820066/ /pubmed/36614025 http://dx.doi.org/10.3390/ijms24010583 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Wang, Chaojie Zhang, Lili Xie, Yongdun Irshad, Ahsan Guo, Huijun Gu, Jiayu Zhao, Linshu Xiong, Hongchun Zhao, Shirong Wang, Chengshe Liu, Luxiang Agronomic Trait Analysis and Genetic Mapping of a New Wheat Semidwarf Gene Rht-SN33d |
title | Agronomic Trait Analysis and Genetic Mapping of a New Wheat Semidwarf Gene Rht-SN33d |
title_full | Agronomic Trait Analysis and Genetic Mapping of a New Wheat Semidwarf Gene Rht-SN33d |
title_fullStr | Agronomic Trait Analysis and Genetic Mapping of a New Wheat Semidwarf Gene Rht-SN33d |
title_full_unstemmed | Agronomic Trait Analysis and Genetic Mapping of a New Wheat Semidwarf Gene Rht-SN33d |
title_short | Agronomic Trait Analysis and Genetic Mapping of a New Wheat Semidwarf Gene Rht-SN33d |
title_sort | agronomic trait analysis and genetic mapping of a new wheat semidwarf gene rht-sn33d |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9820066/ https://www.ncbi.nlm.nih.gov/pubmed/36614025 http://dx.doi.org/10.3390/ijms24010583 |
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