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Dale Z, Jie H, Luyu H, Cancan Z, Yun Z, Yarui S, Suoping L. An Advanced Backcross Population through Synthetic Octaploid Wheat as a "Bridge": Development and QTL Detection for Seed Dormancy. FRONTIERS IN PLANT SCIENCE 2017; 8:2123. [PMID: 29321790 PMCID: PMC5733556 DOI: 10.3389/fpls.2017.02123] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2017] [Accepted: 11/29/2017] [Indexed: 05/21/2023]
Abstract
The seed dormancy characteristic is regarded as one of the most critical factors for pre-harvest sprouting (PHS) resistance. As a wild wheat relative species, Aegilops tauschii is a potential genetic resource for improving common wheat. In this study, an advanced backcross population (201 strains) containing only Ae. tauschii segments was developed by means of synthetic octaploid wheat (hexaploid wheat Zhoumai 18 × Ae. tauschii T093). Subsequently, seed dormancy rate (Dor) in the advanced backcross population was evaluated on the day 3, 5 and 7, in which 2 major QTLs (QDor-2D and QDor-3D) were observed on chromosomes 2D and 3D with phenotypic variance explained values (PVEs) of 10.25 and 20.40%, respectively. Further investigation revealed significant correlation between QDor-3D and Tamyb10 gene, while no association was found between the former and TaVp1 gene, implying that QDor-3D site could be of closer position to Tamyb10. The obtained quantitative trait locus sites (QTLs) in this work could be applied to develop wheat cultivars with PHS resistance.
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Affiliation(s)
- Zhang Dale
- School of Life Science, Henan University, Kaifeng, China
- Institute of Plant Stress Biology, Henan University, Kaifeng, China
| | - He Jie
- School of Life Science, Henan University, Kaifeng, China
| | - Huang Luyu
- School of Life Science, Henan University, Kaifeng, China
| | - Zhang Cancan
- School of Life Science, Henan University, Kaifeng, China
| | - Zhou Yun
- School of Life Science, Henan University, Kaifeng, China
- Institute of Plant Stress Biology, Henan University, Kaifeng, China
| | - Su Yarui
- School of Life Science, Henan University, Kaifeng, China
| | - Li Suoping
- School of Life Science, Henan University, Kaifeng, China
- Institute of Plant Stress Biology, Henan University, Kaifeng, China
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Liu C, Ding F, Hao F, Yu M, Lei H, Wu X, Zhao Z, Guo H, Yin J, Wang Y, Tang H. Reprogramming of Seed Metabolism Facilitates Pre-harvest Sprouting Resistance of Wheat. Sci Rep 2016; 6:20593. [PMID: 26860057 PMCID: PMC4748292 DOI: 10.1038/srep20593] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2015] [Accepted: 01/07/2016] [Indexed: 12/14/2022] Open
Abstract
Pre-harvest sprouting (PHS) is a worldwide problem for wheat production and transgene antisense-thioredoxin-s (anti-trx-s) facilitates outstanding resistance. To understand the molecular details of PHS resistance, we analyzed the metabonomes of the transgenic and wild-type (control) wheat seeds at various stages using NMR and GC-FID/MS. 60 metabolites were dominant in these seeds including sugars, organic acids, amino acids, choline metabolites and fatty acids. At day-20 post-anthesis, only malate level in transgenic wheat differed significantly from that in controls whereas at day-30 post-anthesis, levels of amino acids and sucrose were significantly different between these two groups. For mature seeds, most metabolites in glycolysis, TCA cycle, choline metabolism, biosynthesis of proteins, nucleotides and fatty acids had significantly lower levels in transgenic seeds than in controls. After 30-days post-harvest ripening, most metabolites in transgenic seeds had higher levels than in controls including amino acids, sugars, organic acids, fatty acids, choline metabolites and NAD+. These indicated that anti-trx-s lowered overall metabolic activities of mature seeds eliminating pre-harvest sprouting potential. Post-harvest ripening reactivated the metabolic activities of transgenic seeds to restore their germination vigor. These findings provided essential molecular phenomic information for PHS resistance of anti-trx-s and a credible strategy for future developing PHS resistant crops.
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Affiliation(s)
- Caixiang Liu
- CAS Key Laboratory of Magnetic Resonance in Biological Systems, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Centre for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, the Chinese Academy of Sciences, Wuhan 430071, China
| | - Feng Ding
- College of Life Sciences, Wuhan University, Wuhan 430072, China
| | - Fuhua Hao
- CAS Key Laboratory of Magnetic Resonance in Biological Systems, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Centre for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, the Chinese Academy of Sciences, Wuhan 430071, China
| | - Men Yu
- CAS Key Laboratory of Magnetic Resonance in Biological Systems, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Centre for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, the Chinese Academy of Sciences, Wuhan 430071, China.,Wuhan Zhongke Metaboss Ltd, 128 Guang-Gu-Qi-Lu, Wuhan 430074, China
| | - Hehua Lei
- CAS Key Laboratory of Magnetic Resonance in Biological Systems, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Centre for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, the Chinese Academy of Sciences, Wuhan 430071, China
| | - Xiangyu Wu
- CAS Key Laboratory of Magnetic Resonance in Biological Systems, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Centre for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, the Chinese Academy of Sciences, Wuhan 430071, China
| | - Zhengxi Zhao
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Hongxiang Guo
- National Engineering Research Center for Wheat, Henan Agricultural University, Zhengzhou 450002, China
| | - Jun Yin
- National Engineering Research Center for Wheat, Henan Agricultural University, Zhengzhou 450002, China
| | - Yulan Wang
- CAS Key Laboratory of Magnetic Resonance in Biological Systems, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Centre for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, the Chinese Academy of Sciences, Wuhan 430071, China.,Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Zhejiang University, Hangzhou 310058, China
| | - Huiru Tang
- CAS Key Laboratory of Magnetic Resonance in Biological Systems, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Centre for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, the Chinese Academy of Sciences, Wuhan 430071, China.,State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Developmental Biology, Metabonomics and Systems Biology Laboratory, School of Life Sciences, Fudan University, Shanghai 200438, China
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