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Zhao L, Chen J, Zhang Z, Wu W, Lin X, Gao M, Yang Y, Zhao P, Xu S, Yang C, Yao Y, Zhang A, Liu D, Wang D, Xiao J. Deciphering the Transcriptional Regulatory Network Governing Starch and Storage Protein Biosynthesis in Wheat for Breeding Improvement. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024:e2401383. [PMID: 38943260 DOI: 10.1002/advs.202401383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2024] [Revised: 05/02/2024] [Indexed: 07/01/2024]
Abstract
Starch and seed storage protein (SSP) composition profoundly impact wheat grain yield and quality. To unveil regulatory mechanisms governing their biosynthesis, transcriptome, and epigenome profiling is conducted across key endosperm developmental stages, revealing that chromatin accessibility, H3K27ac, and H3K27me3 collectively regulate SSP and starch genes with varying impact. Population transcriptome and phenotype analyses highlight accessible promoter regions' crucial role as a genetic variation resource, influencing grain yield and quality in a core collection of wheat accessions. Integration of time-serial RNA-seq and ATAC-seq enables the construction of a hierarchical transcriptional regulatory network governing starch and SSP biosynthesis, identifying 42 high-confidence novel candidates. These candidates exhibit overlap with genetic regions associated with grain size and quality traits, and their functional significance is validated through expression-phenotype association analysis among wheat accessions and loss-of-function mutants. Functional analysis of wheat abscisic acid insensitive 3-A1 (TaABI3-A1) with genome editing knock-out lines demonstrates its role in promoting SSP accumulation while repressing starch biosynthesis through transcriptional regulation. Excellent TaABI3-A1Hap1 with enhanced grain weight is selected during the breeding process in China, linked to altered expression levels. This study unveils key regulators, advancing understanding of SSP and starch biosynthesis regulation and contributing to breeding enhancement.
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Affiliation(s)
- Long Zhao
- Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100101, China
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Jinchao Chen
- Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100101, China
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Zhaoheng Zhang
- Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100101, China
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Wenying Wu
- Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100101, China
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xuelei Lin
- Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100101, China
| | - Mingxiang Gao
- State Key Laboratory of North China Crop Improvement and Regulation, Hebei Agricultural University, Baoding, Hebei, 071001, China
| | - Yiman Yang
- Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100101, China
- State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China
| | - Peng Zhao
- Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100101, China
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production, College of Agronomy, Northwest A&F University, Yangling, 712100, China
| | - Shengbao Xu
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production, College of Agronomy, Northwest A&F University, Yangling, 712100, China
| | - Changfeng Yang
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis Utilization (MOE), China Agricultural University, Beijing, 100193, China
| | - Yingyin Yao
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis Utilization (MOE), China Agricultural University, Beijing, 100193, China
| | - Aimin Zhang
- Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100101, China
- State Key Laboratory of North China Crop Improvement and Regulation, Hebei Agricultural University, Baoding, Hebei, 071001, China
| | - Dongcheng Liu
- State Key Laboratory of North China Crop Improvement and Regulation, Hebei Agricultural University, Baoding, Hebei, 071001, China
| | - Dongzhi Wang
- Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100101, China
| | - Jun Xiao
- Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100101, China
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
- Centre of Excellence for Plant and Microbial Science (CEPAMS), JIC-CAS, Beijing, 100101, China
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Cao S, Liu B, Wang D, Rasheed A, Xie L, Xia X, He Z. Orchestrating seed storage protein and starch accumulation toward overcoming yield-quality trade-off in cereal crops. JOURNAL OF INTEGRATIVE PLANT BIOLOGY 2024; 66:468-483. [PMID: 38409921 DOI: 10.1111/jipb.13633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 01/22/2024] [Accepted: 02/07/2024] [Indexed: 02/28/2024]
Abstract
Achieving high yield and good quality in crops is essential for human food security and health. However, there is usually disharmony between yield and quality. Seed storage protein (SSP) and starch, the predominant components in cereal grains, determine yield and quality, and their coupled synthesis causes a yield-quality trade-off. Therefore, dissection of the underlying regulatory mechanism facilitates simultaneous improvement of yield and quality. Here, we summarize current findings about the synergistic molecular machinery underpinning SSP and starch synthesis in the leading staple cereal crops, including maize, rice and wheat. We further evaluate the functional conservation and differentiation of key regulators and specify feasible research approaches to identify additional regulators and expand insights. We also present major strategies to leverage resultant information for simultaneous improvement of yield and quality by molecular breeding. Finally, future perspectives on major challenges are proposed.
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Affiliation(s)
- Shuanghe Cao
- State Key Laboratory of Crop Gene Resources and Breeding/National Wheat Improvement Center, Institute of Crop Sciences, Beijing, 100081, China
| | - Bingyan Liu
- State Key Laboratory of Crop Gene Resources and Breeding/National Wheat Improvement Center, Institute of Crop Sciences, Beijing, 100081, China
| | - Daowen Wang
- College of Agronomy, Henan Agricultural University, Zhengzhou, 450002, China
| | - Awais Rasheed
- State Key Laboratory of Crop Gene Resources and Breeding/National Wheat Improvement Center, Institute of Crop Sciences, Beijing, 100081, China
- International Maize and Wheat Improvement Center (CIMMYT) China Office, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Lina Xie
- State Key Laboratory of Crop Gene Resources and Breeding/National Wheat Improvement Center, Institute of Crop Sciences, Beijing, 100081, China
| | - Xianchun Xia
- State Key Laboratory of Crop Gene Resources and Breeding/National Wheat Improvement Center, Institute of Crop Sciences, Beijing, 100081, China
| | - Zhonghu He
- State Key Laboratory of Crop Gene Resources and Breeding/National Wheat Improvement Center, Institute of Crop Sciences, Beijing, 100081, China
- International Maize and Wheat Improvement Center (CIMMYT) China Office, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
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3
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Chen Y, Wu X, Wang X, Li Q, Yin H, Zhang S. bZIP transcription factor PubZIP914 enhances production of fatty acid-derived volatiles in pear. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2024; 338:111905. [PMID: 37884080 DOI: 10.1016/j.plantsci.2023.111905] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 10/20/2023] [Accepted: 10/22/2023] [Indexed: 10/28/2023]
Abstract
'Nanguo' pear emitted a rich aroma when entirely ripe. The six-carbon (C6) volatiles, including the aldehydes, 2-hexenal, and hexanal, as well as their corresponding alcohols and esters which are derived from lipoxygenase pathway are the important volatile components in 'Nanguo' pears. However, the transcriptional regulation mechanism of aroma synthesis of 'Nanguo' pears remains largely unknown. bZIP transcription factors (TFs) mediate different developmental processes in plants. In this study, we identified and characterized a bZIP TF that is highly expressed and induced in 'Nanguo' pear fruits at the mature stage. The content of fatty acid-derived volatiles increased significantly in transgenic pears and tomatoes of PubZIP914 overexpression. Meanwhile, PubZIP914 could regulate PuLOX3.1 by binding directly to PuLOX3.1 promoter. The results of this study provide evidence demonstrating how bZIP transcription factors regulate fatty acid-derived volatiles biosynthesis during pear fruit ripening.
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Affiliation(s)
- Yangyang Chen
- Jiangsu Engineering Research Center for Pear, National Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Nanjing Agricultural University, Nanjing 210095, China
| | - Xiao Wu
- Jiangsu Engineering Research Center for Pear, National Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Nanjing Agricultural University, Nanjing 210095, China
| | - Xiaohua Wang
- Jiangsu Engineering Research Center for Pear, National Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Nanjing Agricultural University, Nanjing 210095, China
| | - Qionghou Li
- Jiangsu Engineering Research Center for Pear, National Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Nanjing Agricultural University, Nanjing 210095, China
| | - Hao Yin
- Jiangsu Engineering Research Center for Pear, National Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Nanjing Agricultural University, Nanjing 210095, China.
| | - Shaoling Zhang
- Jiangsu Engineering Research Center for Pear, National Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Nanjing Agricultural University, Nanjing 210095, China.
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Plessis A, Ravel C, Risacher T, Duchateau N, Dardevet M, Merlino M, Torney F, Martre P. Storage protein activator controls grain protein accumulation in bread wheat in a nitrogen dependent manner. Sci Rep 2023; 13:22736. [PMID: 38123623 PMCID: PMC10733432 DOI: 10.1038/s41598-023-49139-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Accepted: 12/05/2023] [Indexed: 12/23/2023] Open
Abstract
The expression of cereal grain storage protein (GSP) genes is controlled by a complex network of transcription factors (TFs). Storage protein activator (SPA) is a major TF acting in this network but its specific function in wheat (Triticum aestivum L.) remains to be determined. Here we generated an RNAi line in which expression of the three SPA homoeologs was reduced. In this line and its null segregant we analyzed GSP accumulation and expression of GSP and regulatory TF genes under two regimes of nitrogen availability. We show that down regulation of SPA decreases grain protein concentration at maturity under low but not high nitrogen supply. Under low nitrogen supply, the decrease in SPA expression also caused a reduction in the total quantity of GSP per grain and in the ratio of GSP to albumin-globulins, without significantly affecting GSP composition. The slight reduction in GSP gene expression measured in the SPA RNAi line under low nitrogen supply did not entirely account for the more significant decrease in GSP accumulation, suggesting that SPA regulates additional levels of GSP synthesis. Our results demonstrate a clear role of SPA in the regulation of grain nitrogen metabolism when nitrogen is a limiting resource.
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Affiliation(s)
- Anne Plessis
- Université Clermont Auvergne, INRAE, UMR1095 GDEC, 63000, Clermont Ferrand, France
- School of Biological and Marine Sciences, University of Plymouth, Drake Circus, Plymouth, PL4 8AA, UK
| | - Catherine Ravel
- Université Clermont Auvergne, INRAE, UMR1095 GDEC, 63000, Clermont Ferrand, France.
| | | | - Nathalie Duchateau
- Université Clermont Auvergne, INRAE, UMR1095 GDEC, 63000, Clermont Ferrand, France
| | - Mireille Dardevet
- Université Clermont Auvergne, INRAE, UMR1095 GDEC, 63000, Clermont Ferrand, France
| | - Marielle Merlino
- Université Clermont Auvergne, INRAE, UMR1095 GDEC, 63000, Clermont Ferrand, France
| | - François Torney
- Centre de Recherche, Limagrain Europe, 63 720, Chappes, France
| | - Pierre Martre
- Université Clermont Auvergne, INRAE, UMR1095 GDEC, 63000, Clermont Ferrand, France
- LEPSE, Université de Montpellier, INRAE, Institut SupAgro Montpellier, 34000, Montpellier, France
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5
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Glenn P, Woods DP, Zhang J, Gabay G, Odle N, Dubcovsky J. Wheat bZIPC1 interacts with FT2 and contributes to the regulation of spikelet number per spike. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2023; 136:237. [PMID: 37906302 PMCID: PMC10618405 DOI: 10.1007/s00122-023-04484-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Accepted: 10/09/2023] [Indexed: 11/02/2023]
Abstract
KEY MESSAGE The wheat transcription factor bZIPC1 interacts with FT2 and affects spikelet and grain number per spike. We identified a natural allele with positive effects on these two economically important traits. Loss-of-function mutations and natural variation in the gene FLOWERING LOCUS T2 (FT2) in wheat have previously been shown to affect spikelet number per spike (SNS). However, while other FT-like wheat proteins interact with bZIP-containing transcription factors from the A-group, FT2 does not interact with any of them. In this study, we used a yeast-two-hybrid screen with FT2 as bait and identified a grass-specific bZIP-containing transcription factor from the C-group, designated here as bZIPC1. Within the C-group, we identified four clades including wheat proteins that show Y2H interactions with different sets of FT-like and CEN-like encoded proteins. bZIPC1 and FT2 expression partially overlap in the developing spike, including the inflorescence meristem. Combined loss-of-function mutations in bZIPC-A1 and bZIPC-B1 (bzipc1) in tetraploid wheat resulted in a drastic reduction in SNS with a limited effect on heading date. Analysis of natural variation in the bZIPC-B1 (TraesCS5B02G444100) region revealed three major haplotypes (H1-H3), with the H1 haplotype showing significantly higher SNS, grain number per spike and grain weight per spike than both the H2 and H3 haplotypes. The favorable effect of the H1 haplotype was also supported by its increased frequency from the ancestral cultivated tetraploids to the modern tetraploid and hexaploid wheat varieties. We developed markers for the two non-synonymous SNPs that differentiate the bZIPC-B1b allele in the H1 haplotype from the ancestral bZIPC-B1a allele present in all other haplotypes. These diagnostic markers are useful tools to accelerate the deployment of the favorable bZIPC-B1b allele in pasta and bread wheat breeding programs.
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Affiliation(s)
- Priscilla Glenn
- Department of Plant Sciences, University of California, Davis, CA, 95616, USA
| | - Daniel P Woods
- Department of Plant Sciences, University of California, Davis, CA, 95616, USA
- Howard Hughes Medical Institute, Chevy Chase, MD, 20815, USA
| | - Junli Zhang
- Department of Plant Sciences, University of California, Davis, CA, 95616, USA
| | - Gilad Gabay
- Department of Plant Sciences, University of California, Davis, CA, 95616, USA
| | - Natalie Odle
- Department of Plant Sciences, University of California, Davis, CA, 95616, USA
| | - Jorge Dubcovsky
- Department of Plant Sciences, University of California, Davis, CA, 95616, USA.
- Howard Hughes Medical Institute, Chevy Chase, MD, 20815, USA.
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6
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Xie L, Liu S, Zhang Y, Tian W, Xu D, Li J, Luo X, Li L, Bian Y, Li F, Hao Y, He Z, Xia X, Song X, Cao S. Efficient proteome-wide identification of transcription factors targeting Glu-1: A case study for functional validation of TaB3-2A1 in wheat. PLANT BIOTECHNOLOGY JOURNAL 2023; 21:1952-1965. [PMID: 37381172 PMCID: PMC10502752 DOI: 10.1111/pbi.14103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 01/13/2023] [Accepted: 06/05/2023] [Indexed: 06/30/2023]
Abstract
High-molecular-weight glutenin subunits (HMW-GS), a major component of seed storage proteins (SSP) in wheat, largely determine processing quality. HMW-GS encoded by GLU-1 loci are mainly controlled at the transcriptional level by interactions between cis-elements and transcription factors (TFs). We previously identified a conserved cis-regulatory module CCRM1-1 as the most essential cis-element for Glu-1 endosperm-specific high expression. However, the TFs targeting CCRM1-1 remained unknown. Here, we built the first DNA pull-down plus liquid chromatography-mass spectrometry platform in wheat and identified 31 TFs interacting with CCRM1-1. TaB3-2A1 as proof of concept was confirmed to bind to CCRM1-1 by yeast one hybrid and electrophoretic mobility shift assays. Transactivation experiments demonstrated that TaB3-2A1 repressed CCRM1-1-driven transcription activity. TaB3-2A1 overexpression significantly reduced HMW-GS and other SSP, but enhanced starch content. Transcriptome analyses confirmed that enhanced expression of TaB3-2A1 down-regulated SSP genes and up-regulated starch synthesis-related genes, such as TaAGPL3, TaAGPS2, TaGBSSI, TaSUS1 and TaSUS5, suggesting that it is an integrator modulating the balance of carbon and nitrogen metabolism. TaB3-2A1 also had significant effects on agronomic traits, including heading date, plant height and grain weight. We identified two major haplotypes of TaB3-2A1 and found that TaB3-2A1-Hap1 conferred lower seed protein content, but higher starch content, plant height and grain weight than TaB3-2A1-Hap2 and was subjected to positive selection in a panel of elite wheat cultivars. These findings provide a high-efficiency tool to detect TFs binding to targeted promoters, considerable gene resources for dissecting regulatory mechanisms underlying Glu-1 expression, and a useful gene for wheat improvement.
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Affiliation(s)
- Lina Xie
- Institute of Crop Sciences, National Wheat Improvement CentreChinese Academy of Agricultural Sciences (CAAS)BeijingChina
- College of AgronomyNorthwest A&F UniversityYanglingShaanxi ProvinceChina
| | - Siyang Liu
- Institute of Crop Sciences, National Wheat Improvement CentreChinese Academy of Agricultural Sciences (CAAS)BeijingChina
| | - Yong Zhang
- Institute of Crop Sciences, National Wheat Improvement CentreChinese Academy of Agricultural Sciences (CAAS)BeijingChina
| | - Wenfei Tian
- Institute of Crop Sciences, National Wheat Improvement CentreChinese Academy of Agricultural Sciences (CAAS)BeijingChina
- International Maize and Wheat Improvement Center (CIMMYT) China OfficeChinese Academy of Agricultural Sciences (CAAS)BeijingChina
| | - Dengan Xu
- Institute of Crop Sciences, National Wheat Improvement CentreChinese Academy of Agricultural Sciences (CAAS)BeijingChina
| | - Jihu Li
- Institute of Crop Sciences, National Wheat Improvement CentreChinese Academy of Agricultural Sciences (CAAS)BeijingChina
| | - Xumei Luo
- Institute of Crop Sciences, National Wheat Improvement CentreChinese Academy of Agricultural Sciences (CAAS)BeijingChina
| | - Lingli Li
- Institute of Crop Sciences, National Wheat Improvement CentreChinese Academy of Agricultural Sciences (CAAS)BeijingChina
| | - Yingjie Bian
- Institute of Crop Sciences, National Wheat Improvement CentreChinese Academy of Agricultural Sciences (CAAS)BeijingChina
| | - Faji Li
- Institute of Crop Sciences, National Wheat Improvement CentreChinese Academy of Agricultural Sciences (CAAS)BeijingChina
| | - Yuanfeng Hao
- Institute of Crop Sciences, National Wheat Improvement CentreChinese Academy of Agricultural Sciences (CAAS)BeijingChina
| | - Zhonghu He
- Institute of Crop Sciences, National Wheat Improvement CentreChinese Academy of Agricultural Sciences (CAAS)BeijingChina
- International Maize and Wheat Improvement Center (CIMMYT) China OfficeChinese Academy of Agricultural Sciences (CAAS)BeijingChina
| | - Xianchun Xia
- Institute of Crop Sciences, National Wheat Improvement CentreChinese Academy of Agricultural Sciences (CAAS)BeijingChina
| | - Xiyue Song
- College of AgronomyNorthwest A&F UniversityYanglingShaanxi ProvinceChina
| | - Shuanghe Cao
- Institute of Crop Sciences, National Wheat Improvement CentreChinese Academy of Agricultural Sciences (CAAS)BeijingChina
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7
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Merlino M, Gaudin JC, Dardevet M, Martre P, Ravel C, Boudet J. Wheat DOF transcription factors TaSAD and WPBF regulate glutenin gene expression in cooperation with SPA. PLoS One 2023; 18:e0287645. [PMID: 37352279 PMCID: PMC10289392 DOI: 10.1371/journal.pone.0287645] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Accepted: 06/12/2023] [Indexed: 06/25/2023] Open
Abstract
Grain storage proteins (GSPs) quantity and composition determine the end-use value of wheat flour. GSPs consists of low-molecular-weight glutenins (LMW-GS), high-molecular-weight glutenins (HMW-GS) and gliadins. GSP gene expression is controlled by a complex network of DNA-protein and protein-protein interactions, which coordinate the tissue-specific protein expression during grain development. The regulatory network has been most extensively studied in barley, particularly the two transcription factors (TFs) of the DNA binding with One Finger (DOF) family, barley Prolamin-box Binding Factor (BPBF) and Scutellum and Aleurone-expressed DOF (SAD). They activate hordein synthesis by binding to the Prolamin box, a motif in the hordein promoter. The BPBF ortholog previously identified in wheat, WPBF, has a transcriptional activity in expression of some GSP genes. Here, the wheat ortholog of SAD, named TaSAD, was identified. The binding of TaSAD to GSP gene promoter sequences in vitro and its transcriptional activity in vivo were investigated. In electrophoretic mobility shift assays, recombinant TaSAD and WPBF proteins bound to cis-motifs like those located on HMW-GS and LMW-GS gene promoters known to bind DOF TFs. We showed by transient expression assays in wheat endosperms that TaSAD and WPBF activate GSP gene expression. Moreover, co-bombardment of Storage Protein Activator (SPA) with WPBF or TaSAD had an additive effect on the expression of GSP genes, possibly through conserved cooperative protein-protein interactions.
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Affiliation(s)
- Marielle Merlino
- INRAE, Clermont Auvergne University, UMR GDEC, Clermont-Ferrand, France
| | | | - Mireille Dardevet
- INRAE, Clermont Auvergne University, UMR GDEC, Clermont-Ferrand, France
| | - Pierre Martre
- LEPSE, Univ. Montpellier, INRAE, Institut Agro Montpellier, Montpellier, France
| | - Catherine Ravel
- INRAE, Clermont Auvergne University, UMR GDEC, Clermont-Ferrand, France
| | - Julie Boudet
- INRAE, Clermont Auvergne University, UMR GDEC, Clermont-Ferrand, France
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8
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Wang X, Liu Y, Hao C, Li T, Majeed U, Liu H, Li H, Hou J, Zhang X. Wheat NAC-A18 regulates grain starch and storage proteins synthesis and affects grain weight. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2023; 136:123. [PMID: 37147554 DOI: 10.1007/s00122-023-04365-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Accepted: 04/14/2023] [Indexed: 05/07/2023]
Abstract
KEY MESSAGE Wheat NAC-A18 regulates both starch and storage protein synthesis in the grain, and a haplotype with positive effects on grain weight showed increased frequency during wheat breeding in China. Starch and seed storage protein (SSP) directly affect the processing quality of wheat grain. The synthesis of starch and SSP are also regulated at the transcriptional level. However, only a few starch and SSP regulators have been identified in wheat. In this study, we discovered a NAC transcription factor, designated as NAC-A18, which acts as a regulator of both starch and SSP synthesis. NAC-A18, is predominately expressed in wheat developing grains, encodes a transcription factor localized in the nucleus, with both activation and repression domains. Ectopic expression of wheat NAC-A18 in rice significantly decreased starch accumulation and increased SSP accumulation and grain size and weight. Dual-luciferase reporter assays indicated that NAC-A18 could reduce the expression of TaGBSSI-A1 and TaGBSSI-A2, and enhance the expression of TaLMW-D6 and TaLMW-D1. A yeast one hybrid assay demonstrated that NAC-A18 bound directly to the cis-element "ACGCAA" in the promoters of TaLMW-D6 and TaLMW-D1. Further analysis indicated that two haplotypes were formed at NAC-A18, and that NAC-A18_h1 was a favorable haplotype correlated with higher thousand grain weight. Based on limited population data, NAC-A18_h1 underwent positive selection during Chinese wheat breeding. Our study demonstrates that wheat NAC-A18 regulates starch and SSP accumulation and grain size. A molecular marker was developed for the favorable allele for breeding applications.
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Affiliation(s)
- Xiaolu Wang
- Key Laboratory of Crop Gene Resources and Germplasm Enhancement, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Yunchuan Liu
- Key Laboratory of Crop Gene Resources and Germplasm Enhancement, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Chenyang Hao
- Key Laboratory of Crop Gene Resources and Germplasm Enhancement, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Tian Li
- Key Laboratory of Crop Gene Resources and Germplasm Enhancement, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Uzma Majeed
- Key Laboratory of Crop Gene Resources and Germplasm Enhancement, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Hongxia Liu
- Key Laboratory of Crop Gene Resources and Germplasm Enhancement, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Huifang Li
- Key Laboratory of Crop Gene Resources and Germplasm Enhancement, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Jian Hou
- Key Laboratory of Crop Gene Resources and Germplasm Enhancement, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China.
| | - Xueyong Zhang
- Key Laboratory of Crop Gene Resources and Germplasm Enhancement, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China.
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9
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Saini P, Sheikh I, Saini DK, Mir RR, Dhaliwal HS, Tyagi V. Consensus genomic regions associated with grain protein content in hexaploid and tetraploid wheat. Front Genet 2022; 13:1021180. [PMID: 36246648 PMCID: PMC9554612 DOI: 10.3389/fgene.2022.1021180] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Accepted: 09/13/2022] [Indexed: 11/13/2022] Open
Abstract
A meta-analysis of QTLs associated with grain protein content (GPC) was conducted in hexaploid and tetraploid wheat to identify robust and stable meta-QTLs (MQTLs). For this purpose, as many as 459 GPC-related QTLs retrieved from 48 linkage-based QTL mapping studies were projected onto the newly developed wheat consensus map. The analysis resulted in the prediction of 57 MQTLs and 7 QTL hotspots located on all wheat chromosomes (except chromosomes 1D and 4D) and the average confidence interval reduced 2.71-fold in the MQTLs and QTL hotspots compared to the initial QTLs. The physical regions occupied by the MQTLs ranged from 140 bp to 224.02 Mb with an average of 15.2 Mb, whereas the physical regions occupied by QTL hotspots ranged from 1.81 Mb to 36.03 Mb with a mean of 8.82 Mb. Nineteen MQTLs and two QTL hotspots were also found to be co-localized with 45 significant SNPs identified in 16 previously published genome-wide association studies in wheat. Candidate gene (CG) investigation within some selected MQTLs led to the identification of 705 gene models which also included 96 high-confidence CGs showing significant expressions in different grain-related tissues and having probable roles in GPC regulation. These significantly expressed CGs mainly involved the genes/gene families encoding for the following proteins: aminotransferases, early nodulin 93, glutamine synthetases, invertase/pectin methylesterase inhibitors, protein BIG GRAIN 1-like, cytochrome P450, glycosyl transferases, hexokinases, small GTPases, UDP-glucuronosyl/UDP-glucosyltransferases, and EamA, SANT/Myb, GNAT, thioredoxin, phytocyanin, and homeobox domains containing proteins. Further, eight genes including GPC-B1, Glu-B1-1b, Glu-1By9, TaBiP1, GSr, TaNAC019-A, TaNAC019-D, and bZIP-TF SPA already known to be associated with GPC were also detected within some of the MQTL regions confirming the efficacy of MQTLs predicted during the current study.
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Affiliation(s)
- Pooja Saini
- Department of Genetics-Plant Breeding and Biotechnology, Dr. Khem Singh Gill Akal College of Agriculture, Eternal University, Baru Sahib, India
| | - Imran Sheikh
- Department of Genetics-Plant Breeding and Biotechnology, Dr. Khem Singh Gill Akal College of Agriculture, Eternal University, Baru Sahib, India
| | - Dinesh Kumar Saini
- Department of Plant Breeding and Genetics, Punajb Agricultural University, Ludhiana, India
| | - Reyazul Rouf Mir
- Division of Genetics and Plant Breeding, Faculty of Agriculture SKUAST-Kashmir, Srinagar, India
| | - Harcharan Singh Dhaliwal
- Department of Genetics-Plant Breeding and Biotechnology, Dr. Khem Singh Gill Akal College of Agriculture, Eternal University, Baru Sahib, India
| | - Vikrant Tyagi
- Department of Genetics-Plant Breeding and Biotechnology, Dr. Khem Singh Gill Akal College of Agriculture, Eternal University, Baru Sahib, India
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10
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Wheat genomic study for genetic improvement of traits in China. SCIENCE CHINA. LIFE SCIENCES 2022; 65:1718-1775. [PMID: 36018491 DOI: 10.1007/s11427-022-2178-7] [Citation(s) in RCA: 55] [Impact Index Per Article: 27.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Accepted: 08/10/2022] [Indexed: 01/17/2023]
Abstract
Bread wheat (Triticum aestivum L.) is a major crop that feeds 40% of the world's population. Over the past several decades, advances in genomics have led to tremendous achievements in understanding the origin and domestication of wheat, and the genetic basis of agronomically important traits, which promote the breeding of elite varieties. In this review, we focus on progress that has been made in genomic research and genetic improvement of traits such as grain yield, end-use traits, flowering regulation, nutrient use efficiency, and biotic and abiotic stress responses, and various breeding strategies that contributed mainly by Chinese scientists. Functional genomic research in wheat is entering a new era with the availability of multiple reference wheat genome assemblies and the development of cutting-edge technologies such as precise genome editing tools, high-throughput phenotyping platforms, sequencing-based cloning strategies, high-efficiency genetic transformation systems, and speed-breeding facilities. These insights will further extend our understanding of the molecular mechanisms and regulatory networks underlying agronomic traits and facilitate the breeding process, ultimately contributing to more sustainable agriculture in China and throughout the world.
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11
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The Qc5 Allele Increases Wheat Bread-Making Quality by Regulating SPA and SPR. Int J Mol Sci 2022; 23:ijms23147581. [PMID: 35886927 PMCID: PMC9323144 DOI: 10.3390/ijms23147581] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2022] [Revised: 07/01/2022] [Accepted: 07/06/2022] [Indexed: 02/04/2023] Open
Abstract
Common wheat (Triticum aestivum L.) is an important food crop with a unique processing quality. The Q gene positively regulates the processing quality of wheat, but the underlying mechanism remains unclear. Here, a new Q allele (Qc5) responsible for compact spikes and good bread performance was identified. Compared with the Q allele widely distributed in modern common wheat cultivars, Qc5 had a missense mutation outside the miRNA172-binding site. This missense mutation led to a more compact messenger RNA (mRNA) secondary structure around the miRNA172-binding region, resulting in increased Qc5 expression during the spike development stage and a consequent increase in spike density. Furthermore, this missense mutation weakened the physical interaction between Qc5 and storage protein activator (SPA) in seeds and suppressed the expression of storage protein repressor (SPR). These changes increased the grain protein content and improved the bread-making quality of wheat. In conclusion, a missense mutation increases Q expression because of the resulting highly folded mRNA secondary structure around the miRNA172-binding site. Furthermore, this mutation improves the bread-making quality of wheat by repressing the expression of SPR and influencing the physical interaction between Q and SPA. These findings provide new insights into the miRNA172-directed regulation of gene expression, with implications for wheat breeding.
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12
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Liu J, Wu MW, Liu CM. Cereal Endosperms: Development and Storage Product Accumulation. ANNUAL REVIEW OF PLANT BIOLOGY 2022; 73:255-291. [PMID: 35226815 DOI: 10.1146/annurev-arplant-070221-024405] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
The persistent triploid endosperms of cereal crops are the most important source of human food and animal feed. The development of cereal endosperms progresses through coenocytic nuclear division, cellularization, aleurone and starchy endosperm differentiation, and storage product accumulation. In the past few decades, the cell biological processes involved in endosperm formation in most cereals have been described. Molecular genetic studies performed in recent years led to the identification of the genes underlying endosperm differentiation, regulatory network governing storage product accumulation, and epigenetic mechanism underlying imprinted gene expression. In this article, we outline recent progress in this area and propose hypothetical models to illustrate machineries that control aleurone and starchy endosperm differentiation, sugar loading, and storage product accumulations. A future challenge in this area is to decipher the molecular mechanisms underlying coenocytic nuclear division, endosperm cellularization, and programmed cell death.
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Affiliation(s)
- Jinxin Liu
- Key Laboratory of Plant Molecular Physiology, Institute of Botany, Chinese Academy of Sciences, Beijing, China;
| | - Ming-Wei Wu
- Key Laboratory of Plant Molecular Physiology, Institute of Botany, Chinese Academy of Sciences, Beijing, China;
| | - Chun-Ming Liu
- Key Laboratory of Plant Molecular Physiology, Institute of Botany, Chinese Academy of Sciences, Beijing, China;
- Innovation Academy for Seed Design, Chinese Academy of Sciences, Beijing, China
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
- School of Advanced Agricultural Sciences, Peking University, Beijing, China
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13
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Paux E, Lafarge S, Balfourier F, Derory J, Charmet G, Alaux M, Perchet G, Bondoux M, Baret F, Barillot R, Ravel C, Sourdille P, Le Gouis J. Breeding for Economically and Environmentally Sustainable Wheat Varieties: An Integrated Approach from Genomics to Selection. BIOLOGY 2022; 11:149. [PMID: 35053148 PMCID: PMC8773325 DOI: 10.3390/biology11010149] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 01/10/2022] [Accepted: 01/11/2022] [Indexed: 12/21/2022]
Abstract
There is currently a strong societal demand for sustainability, quality, and safety in bread wheat production. To address these challenges, new and innovative knowledge, resources, tools, and methods to facilitate breeding are needed. This starts with the development of high throughput genomic tools including single nucleotide polymorphism (SNP) arrays, high density molecular marker maps, and full genome sequences. Such powerful tools are essential to perform genome-wide association studies (GWAS), to implement genomic and phenomic selection, and to characterize the worldwide diversity. This is also useful to breeders to broaden the genetic basis of elite varieties through the introduction of novel sources of genetic diversity. Improvement in varieties particularly relies on the detection of genomic regions involved in agronomical traits including tolerance to biotic (diseases and pests) and abiotic (drought, nutrient deficiency, high temperature) stresses. When enough resolution is achieved, this can result in the identification of candidate genes that could further be characterized to identify relevant alleles. Breeding must also now be approached through in silico modeling to simulate plant development, investigate genotype × environment interactions, and introduce marker-trait linkage information in the models to better implement genomic selection. Breeders must be aware of new developments and the information must be made available to the world wheat community to develop new high-yielding varieties that can meet the challenge of higher wheat production in a sustainable and fluctuating agricultural context. In this review, we compiled all knowledge and tools produced during the BREEDWHEAT project to show how they may contribute to face this challenge in the coming years.
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Affiliation(s)
- Etienne Paux
- UMR GDEC Genetics, Diversity & Ecophysiology of Cereals, INRAE—Université Clermont-Auvergne, 5, Chemin de Beaulieu, 63000 Clermont-Ferrand, France; (E.P.); (F.B.); (G.C.); (C.R.); (P.S.)
| | - Stéphane Lafarge
- Limagrain, Chappes Research Center, Route d’Ennezat, 63720 Chappes, France; (S.L.); (J.D.)
| | - François Balfourier
- UMR GDEC Genetics, Diversity & Ecophysiology of Cereals, INRAE—Université Clermont-Auvergne, 5, Chemin de Beaulieu, 63000 Clermont-Ferrand, France; (E.P.); (F.B.); (G.C.); (C.R.); (P.S.)
| | - Jérémy Derory
- Limagrain, Chappes Research Center, Route d’Ennezat, 63720 Chappes, France; (S.L.); (J.D.)
| | - Gilles Charmet
- UMR GDEC Genetics, Diversity & Ecophysiology of Cereals, INRAE—Université Clermont-Auvergne, 5, Chemin de Beaulieu, 63000 Clermont-Ferrand, France; (E.P.); (F.B.); (G.C.); (C.R.); (P.S.)
| | - Michael Alaux
- Université Paris-Saclay—INRAE, URGI, 78026 Versailles, France;
- Université Paris-Saclay—INRAE, BioinfOmics, Plant Bioinformatics Facility, 78026 Versailles, France
| | - Geoffrey Perchet
- Vegepolys Valley, Maison du Végétal, 26 Rue Jean Dixmeras, 49066 Angers, France;
| | - Marion Bondoux
- INRAE—Transfert, 5, Chemin de Beaulieu, 63000 Clermont-Ferrand, France;
| | - Frédéric Baret
- UMR EMMAH, INRAE—Université d’Avignon et des Pays de Vaucluse, 84914 Avignon, France;
| | | | - Catherine Ravel
- UMR GDEC Genetics, Diversity & Ecophysiology of Cereals, INRAE—Université Clermont-Auvergne, 5, Chemin de Beaulieu, 63000 Clermont-Ferrand, France; (E.P.); (F.B.); (G.C.); (C.R.); (P.S.)
| | - Pierre Sourdille
- UMR GDEC Genetics, Diversity & Ecophysiology of Cereals, INRAE—Université Clermont-Auvergne, 5, Chemin de Beaulieu, 63000 Clermont-Ferrand, France; (E.P.); (F.B.); (G.C.); (C.R.); (P.S.)
| | - Jacques Le Gouis
- UMR GDEC Genetics, Diversity & Ecophysiology of Cereals, INRAE—Université Clermont-Auvergne, 5, Chemin de Beaulieu, 63000 Clermont-Ferrand, France; (E.P.); (F.B.); (G.C.); (C.R.); (P.S.)
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14
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Peng Y, Zhao Y, Yu Z, Zeng J, Xu D, Dong J, Ma W. Wheat Quality Formation and Its Regulatory Mechanism. FRONTIERS IN PLANT SCIENCE 2022; 13:834654. [PMID: 35432421 PMCID: PMC9006054 DOI: 10.3389/fpls.2022.834654] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Accepted: 03/09/2022] [Indexed: 05/07/2023]
Abstract
Elucidation of the composition, functional characteristics, and formation mechanism of wheat quality is critical for the sustainable development of wheat industry. It is well documented that wheat processing quality is largely determined by its seed storage proteins including glutenins and gliadins, which confer wheat dough with unique rheological properties, making it possible to produce a series of foods for human consumption. The proportion of different gluten components has become an important target for wheat quality improvement. In many cases, the processing quality of wheat is closely associated with the nutritional value and healthy effect of the end-products. The components of wheat seed storage proteins can greatly influence wheat quality and some can even cause intestinal inflammatory diseases or allergy in humans. Genetic and environmental factors have great impacts on seed storage protein synthesis and accumulation, and fertilization and irrigation strategies also greatly affect the seed storage protein content and composition, which together determine the final end-use quality of wheat. This review summarizes the recent progress in research on the composition, function, biosynthesis, and regulatory mechanism of wheat storage proteins and their impacts on wheat end-product quality.
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Affiliation(s)
- Yanchun Peng
- Hubei Key Laboratory of Food Crop Germplasm and Genetic Improvement, Food Crops Institute, Hubei Academy of Agricultural Sciences, Wuhan, China
| | - Yun Zhao
- College of Agronomy, Qingdao Agricultural University, Qingdao, China
- Food Futures Institute and College of Science, Health, Engineering and Education, Murdoch University, Perth, WA, Australia
| | - Zitong Yu
- Food Futures Institute and College of Science, Health, Engineering and Education, Murdoch University, Perth, WA, Australia
| | - Jianbin Zeng
- College of Agronomy, Qingdao Agricultural University, Qingdao, China
| | - Dengan Xu
- College of Agronomy, Qingdao Agricultural University, Qingdao, China
| | - Jing Dong
- Hubei Key Laboratory of Food Crop Germplasm and Genetic Improvement, Food Crops Institute, Hubei Academy of Agricultural Sciences, Wuhan, China
| | - Wujun Ma
- College of Agronomy, Qingdao Agricultural University, Qingdao, China
- Food Futures Institute and College of Science, Health, Engineering and Education, Murdoch University, Perth, WA, Australia
- *Correspondence: Wujun Ma,
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15
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Luo G, Shen L, Zhao S, Li R, Song Y, Song S, Yu K, Yang W, Li X, Sun J, Wang Y, Gao C, Liu D, Zhang A. Genome-wide identification of seed storage protein gene regulators in wheat through coexpression analysis. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2021; 108:1704-1720. [PMID: 34634158 DOI: 10.1111/tpj.15538] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2020] [Accepted: 09/27/2021] [Indexed: 12/31/2022]
Abstract
Only a few transcriptional regulators of seed storage protein (SSP) genes have been identified in common wheat (Triticum aestivum L.). Coexpression analysis could be an efficient approach to characterize novel transcriptional regulators at the genome-scale considering the correlated expression between transcriptional regulators and target genes. As the A genome donor of common wheat, Triticum urartu is more suitable for coexpression analysis than common wheat considering the diploid genome and single gene copy. In this work, the transcriptome dynamics in endosperm of T. urartu throughout grain filling were revealed by RNA-Seq analysis. In the coexpression analysis, a total of 71 transcription factors (TFs) from 23 families were found to be coexpressed with SSP genes. Among these TFs, TuNAC77 enhanced the transcription of SSP genes by binding to cis-elements distributed in promoters. The homolog of TuNAC77 in common wheat, TaNAC77, shared an identical function, and the total SSPs were reduced by about 24% in common wheat when TaNAC77 was knocked down. This is the first genome-wide identification of transcriptional regulators of SSP genes in wheat, and the newly characterized transcriptional regulators will undoubtedly expand our knowledge of the transcriptional regulation of SSP synthesis.
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Affiliation(s)
- Guangbin Luo
- State Key Laboratory of Plant Cell and Chromosome Engineering, National Center for Plant Gene Research, Institute of Genetics and Developmental Biology/Innovative Academy of Seed Design, Chinese Academy of Sciences, 1 West Beichen Road, Chaoyang District, Beijing, 100101, China
| | - Lisha Shen
- State Key Laboratory of Plant Cell and Chromosome Engineering, National Center for Plant Gene Research, Institute of Genetics and Developmental Biology/Innovative Academy of Seed Design, Chinese Academy of Sciences, 1 West Beichen Road, Chaoyang District, Beijing, 100101, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Shancen Zhao
- BGI Institute of Applied Agriculture, BGI-Shenzhen, Shenzhen, 518120, China
| | - Ruidong Li
- Graduate Program in Genetics, Genomics and Bioinformatics, University of California, Riverside, CA, USA
| | - Yanhong Song
- State Key Laboratory of Plant Cell and Chromosome Engineering, National Center for Plant Gene Research, Institute of Genetics and Developmental Biology/Innovative Academy of Seed Design, Chinese Academy of Sciences, 1 West Beichen Road, Chaoyang District, Beijing, 100101, China.,College of Agronomy, The Collaborative Innovation Center of Grain Crops in Henan, Henan Agricultural University, 63 Nongye Road, Zhengzhou, 450002, China
| | - Shuyi Song
- State Key Laboratory of Plant Cell and Chromosome Engineering, National Center for Plant Gene Research, Institute of Genetics and Developmental Biology/Innovative Academy of Seed Design, Chinese Academy of Sciences, 1 West Beichen Road, Chaoyang District, Beijing, 100101, China.,College of Agronomy, The Collaborative Innovation Center of Grain Crops in Henan, Henan Agricultural University, 63 Nongye Road, Zhengzhou, 450002, China
| | - Kang Yu
- BGI Institute of Applied Agriculture, BGI-Shenzhen, Shenzhen, 518120, China
| | - Wenlong Yang
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Xin Li
- State Key Laboratory of Plant Cell and Chromosome Engineering, National Center for Plant Gene Research, Institute of Genetics and Developmental Biology/Innovative Academy of Seed Design, Chinese Academy of Sciences, 1 West Beichen Road, Chaoyang District, Beijing, 100101, China
| | - Jiazhu Sun
- State Key Laboratory of Plant Cell and Chromosome Engineering, National Center for Plant Gene Research, Institute of Genetics and Developmental Biology/Innovative Academy of Seed Design, Chinese Academy of Sciences, 1 West Beichen Road, Chaoyang District, Beijing, 100101, China
| | - Yanpeng Wang
- State Key Laboratory of Plant Cell and Chromosome Engineering, National Center for Plant Gene Research, Institute of Genetics and Developmental Biology/Innovative Academy of Seed Design, Chinese Academy of Sciences, 1 West Beichen Road, Chaoyang District, Beijing, 100101, China
| | - Caixia Gao
- State Key Laboratory of Plant Cell and Chromosome Engineering, National Center for Plant Gene Research, Institute of Genetics and Developmental Biology/Innovative Academy of Seed Design, Chinese Academy of Sciences, 1 West Beichen Road, Chaoyang District, Beijing, 100101, China
| | - Dongcheng Liu
- State Key Laboratory of North China Crop Improvement and Regulation, College of Agronomy, Hebei Agricultural University, Baoding, Hebei, 071000, China
| | - Aimin Zhang
- State Key Laboratory of Plant Cell and Chromosome Engineering, National Center for Plant Gene Research, Institute of Genetics and Developmental Biology/Innovative Academy of Seed Design, Chinese Academy of Sciences, 1 West Beichen Road, Chaoyang District, Beijing, 100101, China.,University of Chinese Academy of Sciences, Beijing, 100049, China.,State Key Laboratory of North China Crop Improvement and Regulation, College of Agronomy, Hebei Agricultural University, Baoding, Hebei, 071000, China
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16
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Zhou Z, Zhang Z, Mason AS, Chen L, Liu C, Qin M, Li W, Tian B, Wu Z, Lei Z, Hou J. Quantitative traits loci mapping and molecular marker development for total glutenin and glutenin fraction contents in wheat. BMC PLANT BIOLOGY 2021; 21:455. [PMID: 34615486 PMCID: PMC8493754 DOI: 10.1186/s12870-021-03221-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/15/2021] [Accepted: 09/20/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND Glutenin contents and compositions are crucial factors influencing the end-use quality of wheat. Although the composition of glutenin fractions is well known, there has been relatively little research on the genetic basis of glutenin fractions in wheat. RESULTS To elucidate the genetic basis for the contents of glutenin and its fractions, a population comprising 196 recombinant inbred lines (RILs) was constructed from two parents, Luozhen No.1 and Zhengyumai 9987, which differ regarding their total glutenin and its fraction contents (except for the By fraction). Forty-one additive Quantitative Trait Loci (QTL) were detected in four environments over two years. These QTL explained 1.3% - 53.4% of the phenotypic variation in the examined traits. Forty-three pairs of epistatic QTL (E-QTL) were detected in the RIL population across four environments. The QTL controlling the content of total glutenin and its seven fractions were detected in clusters. Seven clusters enriched with QTL for more than three traits were identified, including a QTL cluster 6AS-3, which was revealed as a novel genetic locus for glutenin and related traits. Kompetitive Allele-Specific PCR (KASP) markers developed from the main QTL cluster 1DL-2 and the previously developed KASP marker for the QTL cluster 6AS-3 were validated as significantly associated with the target traits in the RIL population and in natural varieties. CONCLUSIONS This study identified novel genetic loci related to glutenin and its seven fractions. Additionally, the developed KASP markers may be useful for the marker-assisted selection of varieties with high glutenin fraction content and for identifying individuals in the early developmental stages without the need for phenotyping mature plants. On the basis of the results of this study and the KASP markers described herein, breeders will be able to efficiently select wheat lines with favorable glutenin properties and develop elite lines with high glutenin subunit contents.
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Affiliation(s)
- Zhengfu Zhou
- Henan Institute of Crop Molecular Breeding, Henan Academy of Agricultural Sciences, Zhengzhou, 450002, China
- Agronomy College, Zhengzhou University, 450001, Zhengzhou, China
| | - Ziwei Zhang
- National Key Laboratory of Wheat and Maize Crop Science, Henan Agricultural University, Zhengzhou, 450002, China
| | - Annaliese S Mason
- Chair of Plant Breeding, Institute of Crop Science and Resource Conservation, University of Bonn, Bonn, Germany
| | - Lingzhi Chen
- Henan Institute of Crop Molecular Breeding, Henan Academy of Agricultural Sciences, Zhengzhou, 450002, China
- National Key Laboratory of Wheat and Maize Crop Science, Henan Agricultural University, Zhengzhou, 450002, China
| | - Congcong Liu
- Henan Institute of Crop Molecular Breeding, Henan Academy of Agricultural Sciences, Zhengzhou, 450002, China
- National Key Laboratory of Wheat and Maize Crop Science, Henan Agricultural University, Zhengzhou, 450002, China
| | - Maomao Qin
- Henan Institute of Crop Molecular Breeding, Henan Academy of Agricultural Sciences, Zhengzhou, 450002, China
| | - Wenxu Li
- Henan Institute of Crop Molecular Breeding, Henan Academy of Agricultural Sciences, Zhengzhou, 450002, China
| | - Baoming Tian
- Agronomy College, Zhengzhou University, 450001, Zhengzhou, China
| | - Zhengqing Wu
- Henan Institute of Crop Molecular Breeding, Henan Academy of Agricultural Sciences, Zhengzhou, 450002, China.
- Agronomy College, Zhengzhou University, 450001, Zhengzhou, China.
| | - Zhensheng Lei
- Henan Institute of Crop Molecular Breeding, Henan Academy of Agricultural Sciences, Zhengzhou, 450002, China.
- Agronomy College, Zhengzhou University, 450001, Zhengzhou, China.
- National Key Laboratory of Wheat and Maize Crop Science, Henan Agricultural University, Zhengzhou, 450002, China.
| | - Jinna Hou
- Henan Institute of Crop Molecular Breeding, Henan Academy of Agricultural Sciences, Zhengzhou, 450002, China.
- Agronomy College, Zhengzhou University, 450001, Zhengzhou, China.
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17
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Luo G, Shen L, Song Y, Yu K, Ji J, Zhang C, Yang W, Li X, Sun J, Zhan K, Cui D, Wang Y, Gao C, Liu D, Zhang A. The MYB family transcription factor TuODORANT1 from Triticum urartu and the homolog TaODORANT1 from Triticum aestivum inhibit seed storage protein synthesis in wheat. PLANT BIOTECHNOLOGY JOURNAL 2021; 19:1863-1877. [PMID: 33949074 PMCID: PMC8428827 DOI: 10.1111/pbi.13604] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 04/11/2021] [Indexed: 05/08/2023]
Abstract
Seed storage proteins (SSPs) are determinants of wheat end-product quality. SSP synthesis is mainly regulated at the transcriptional level. Few transcriptional regulators of SSP synthesis have been identified in wheat and this study aims to identify novel SSP gene regulators. Here, the R2R3 MYB transcription factor TuODORANT1 from Triticum urartu was found to be preferentially expressed in the developing endosperm during grain filling. In common wheat (Triticum aestivum) overexpressing TuODORANT1, the transcription levels of all the SSP genes tested by RNA-Seq analysis were reduced by 49.71% throughout grain filling, which contributed to 13.38%-35.60% declines in the total SSP levels of mature grains. In in vitro assays, TuODORANT1 inhibited both the promoter activities and the transcription of SSP genes by 1- to 13-fold. The electrophoretic mobility shift assay (EMSA) and ChIP-qPCR analysis demonstrated that TuODORANT1 bound to the cis-elements 5'-T/CAACCA-3' and 5'-T/CAACT/AG-3' in SSP gene promoters both in vitro and in vivo. Similarly, the homolog TaODORANT1 in common wheat hindered both the promoter activities and the transcription of SSP genes by 1- to 112-fold in vitro. Knockdown of TaODORANT1 in common wheat led to 14.73%-232.78% increases in the transcription of the tested SSP genes, which contributed to 11.43%-19.35% elevation in the total SSP levels. Our data show that both TuODORANT1 and TaODORANT1 are repressors of SSP synthesis.
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Affiliation(s)
- Guangbin Luo
- State Key Laboratory of Plant Cell and Chromosome EngineeringNational Center for Plant Gene ResearchInstitute of Genetics and Developmental Biology/Innovative Academy of Seed DesignChinese Academy of SciencesBeijingChina
| | - Lisha Shen
- State Key Laboratory of Plant Cell and Chromosome EngineeringNational Center for Plant Gene ResearchInstitute of Genetics and Developmental Biology/Innovative Academy of Seed DesignChinese Academy of SciencesBeijingChina
- University of Chinese Academy of SciencesBeijingChina
| | - Yanhong Song
- State Key Laboratory of Plant Cell and Chromosome EngineeringNational Center for Plant Gene ResearchInstitute of Genetics and Developmental Biology/Innovative Academy of Seed DesignChinese Academy of SciencesBeijingChina
- BGI GenomicsBGI‐ShenzhenShenzhenChina
| | - Kang Yu
- State Key Laboratory of Plant Cell and Chromosome EngineeringNational Center for Plant Gene ResearchInstitute of Genetics and Developmental Biology/Innovative Academy of Seed DesignChinese Academy of SciencesBeijingChina
- Institute of Vegetables and FlowersChinese Academy of Agricultural SciencesBeijingChina
| | - Jingjing Ji
- Institute of Vegetables and FlowersChinese Academy of Agricultural SciencesBeijingChina
| | - Chi Zhang
- Institute of Vegetables and FlowersChinese Academy of Agricultural SciencesBeijingChina
| | - Wenlong Yang
- State Key Laboratory of North China Crop Improvement and RegulationCollege of AgronomyHebei Agricultural UniversityBaodingHebeiChina
| | - Xin Li
- State Key Laboratory of Plant Cell and Chromosome EngineeringNational Center for Plant Gene ResearchInstitute of Genetics and Developmental Biology/Innovative Academy of Seed DesignChinese Academy of SciencesBeijingChina
| | - Jiazhu Sun
- State Key Laboratory of Plant Cell and Chromosome EngineeringNational Center for Plant Gene ResearchInstitute of Genetics and Developmental Biology/Innovative Academy of Seed DesignChinese Academy of SciencesBeijingChina
| | | | | | - Yanpeng Wang
- State Key Laboratory of Plant Cell and Chromosome EngineeringNational Center for Plant Gene ResearchInstitute of Genetics and Developmental Biology/Innovative Academy of Seed DesignChinese Academy of SciencesBeijingChina
| | - Caixia Gao
- State Key Laboratory of Plant Cell and Chromosome EngineeringNational Center for Plant Gene ResearchInstitute of Genetics and Developmental Biology/Innovative Academy of Seed DesignChinese Academy of SciencesBeijingChina
| | - Dongcheng Liu
- College of Agronomy/Collaborative Innovation Center of Henan Grain CropsHenan Agricultural UniversityZhengzhouChina
| | - Aimin Zhang
- State Key Laboratory of Plant Cell and Chromosome EngineeringNational Center for Plant Gene ResearchInstitute of Genetics and Developmental Biology/Innovative Academy of Seed DesignChinese Academy of SciencesBeijingChina
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18
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Gao Y, An K, Guo W, Chen Y, Zhang R, Zhang X, Chang S, Rossi V, Jin F, Cao X, Xin M, Peng H, Hu Z, Guo W, Du J, Ni Z, Sun Q, Yao Y. The endosperm-specific transcription factor TaNAC019 regulates glutenin and starch accumulation and its elite allele improves wheat grain quality. THE PLANT CELL 2021; 33:603-622. [PMID: 33955492 PMCID: PMC8136912 DOI: 10.1093/plcell/koaa040] [Citation(s) in RCA: 78] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Accepted: 11/16/2020] [Indexed: 05/03/2023]
Abstract
In wheat (Triticum aestivum L.), breeding efforts have focused intensively on improving grain yield and quality. For quality, the content and composition of seed storage proteins (SSPs) determine the elasticity of wheat dough and flour processing quality. Moreover, starch levels in seeds are associated with yield. However, little is known about the mechanisms that coordinate SSP and starch accumulation in wheat. In this study, we explored the role of the endosperm-specific NAC transcription factor TaNAC019 in coordinating SSP and starch accumulation. TaNAC019 binds to the promoters of TaGlu-1 loci, encoding high molecular weight glutenin (HMW-GS), and of starch metabolism genes. Triple knock-out mutants of all three TaNAC019 homoeologs exhibited reduced transcript levels for all SSP types and genes involved in starch metabolism, leading to lower gluten and starch contents, and in flour processing quality parameters. TaNAC019 directly activated the expression of HMW-GS genes by binding to a specific motif in their promoters and interacting with the TaGlu-1 regulator TaGAMyb. TaNAC019 also indirectly regulated the expression of TaSPA, an ortholog of maize Opaque2 that activates SSP accumulation. Therefore, TaNAC019 regulation of starch- and SSP-related genes has key roles in wheat grain quality. Finally, we identified an elite allele (TaNAC019-BI) associated with flour processing quality, providing a candidate gene for breeding wheat with improved quality.
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Affiliation(s)
- Yujiao Gao
- State Key Laboratory for Agrobiotechnology and Key Laboratory of Crop Heterosis and Utilization (MOE) and Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100193, China
| | - Kexin An
- State Key Laboratory for Agrobiotechnology and Key Laboratory of Crop Heterosis and Utilization (MOE) and Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100193, China
| | - Weiwei Guo
- College of Agronomy, Qingdao Agricultural University, Qingdao 266109, China
| | - Yongming Chen
- State Key Laboratory for Agrobiotechnology and Key Laboratory of Crop Heterosis and Utilization (MOE) and Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100193, China
| | - Ruijie Zhang
- State Key Laboratory for Agrobiotechnology and Key Laboratory of Crop Heterosis and Utilization (MOE) and Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100193, China
| | - Xue Zhang
- State Key Laboratory for Agrobiotechnology and Key Laboratory of Crop Heterosis and Utilization (MOE) and Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100193, China
| | - Siyuan Chang
- State Key Laboratory for Agrobiotechnology and Key Laboratory of Crop Heterosis and Utilization (MOE) and Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100193, China
| | - Vincenzo Rossi
- Council for Agricultural Research and Economics, Research Centre for Cereal and Industrial Crops, I-24126 Bergamo, Italy
| | - Fangming Jin
- State Key Laboratory for Agrobiotechnology and Key Laboratory of Crop Heterosis and Utilization (MOE) and Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100193, China
| | - Xinyou Cao
- Crop Research Institute, Shandong Academy of Agricultural Sciences, Jinan 250100, China
| | - Mingming Xin
- State Key Laboratory for Agrobiotechnology and Key Laboratory of Crop Heterosis and Utilization (MOE) and Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100193, China
| | - Huiru Peng
- State Key Laboratory for Agrobiotechnology and Key Laboratory of Crop Heterosis and Utilization (MOE) and Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100193, China
| | - Zhaorong Hu
- State Key Laboratory for Agrobiotechnology and Key Laboratory of Crop Heterosis and Utilization (MOE) and Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100193, China
| | - Weilong Guo
- State Key Laboratory for Agrobiotechnology and Key Laboratory of Crop Heterosis and Utilization (MOE) and Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100193, China
| | - Jinkun Du
- State Key Laboratory for Agrobiotechnology and Key Laboratory of Crop Heterosis and Utilization (MOE) and Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100193, China
| | - Zhongfu Ni
- State Key Laboratory for Agrobiotechnology and Key Laboratory of Crop Heterosis and Utilization (MOE) and Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100193, China
| | - Qixin Sun
- State Key Laboratory for Agrobiotechnology and Key Laboratory of Crop Heterosis and Utilization (MOE) and Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100193, China
| | - Yingyin Yao
- State Key Laboratory for Agrobiotechnology and Key Laboratory of Crop Heterosis and Utilization (MOE) and Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100193, China
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19
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Shen L, Luo G, Song Y, Xu J, Ji J, Zhang C, Gregová E, Yang W, Li X, Sun J, Zhan K, Cui D, Liu D, Zhang A. A novel NAC family transcription factor SPR suppresses seed storage protein synthesis in wheat. PLANT BIOTECHNOLOGY JOURNAL 2021; 19:992-1007. [PMID: 33305445 PMCID: PMC8131056 DOI: 10.1111/pbi.13524] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Revised: 08/11/2020] [Accepted: 12/01/2020] [Indexed: 05/23/2023]
Abstract
The synthesis of seed storage protein (SSP) is mainly regulated at the transcriptional level. However, few transcriptional regulators of SSP synthesis have been characterized in common wheat (Triticum aestivum) owing to the complex genome. As the A genome donor of common wheat, Triticum urartu could be an elite model in wheat research considering its simple genome. Here, a novel NAC family transcription factor TuSPR from T. urartu was found preferentially expressed in developing endosperm during grain-filling stages. In common wheat transgenically overexpressing TuSPR, the content of total SSPs was reduced by c. 15.97% attributed to the transcription declines of SSP genes. Both in vitro and in vivo assays showed that TuSPR bound to the cis-element 5'-CANNTG-3' distributed in SSP gene promoters and suppressed the transcription. The homolog in common wheat TaSPR shared a conserved function with TuSPR on SSP synthesis suppression. The knock-down of TaSPR in common wheat resulted in 7.07%-20.34% increases in the total SSPs. Both TuSPR and TaSPR could be superior targets in genetic engineering to manipulate SSP content in wheat, and this work undoubtedly expands our knowledge of SSP gene regulation.
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Affiliation(s)
- Lisha Shen
- State Key Laboratory of Plant Cell and Chromosome EngineeringNational Center for Plant Gene ResearchInstitute of Genetics and Developmental Biology/Innovation Academy of Seed DesignChinese Academy of SciencesBeijingChina
- University of Chinese Academy of SciencesBeijingChina
| | - Guangbin Luo
- State Key Laboratory of Plant Cell and Chromosome EngineeringNational Center for Plant Gene ResearchInstitute of Genetics and Developmental Biology/Innovation Academy of Seed DesignChinese Academy of SciencesBeijingChina
- Agronomy DepartmentUniversity of FloridaGainesvilleFLUSA
| | - Yanhong Song
- State Key Laboratory of Plant Cell and Chromosome EngineeringNational Center for Plant Gene ResearchInstitute of Genetics and Developmental Biology/Innovation Academy of Seed DesignChinese Academy of SciencesBeijingChina
- Agronomy CollegeNational Key Laboratory of Wheat and Maize Crop ScienceCollaborative Innovation Center of Grain Crops in HenanHenan Agricultural UniversityZhengzhouChina
| | | | | | - Chi Zhang
- BGI GenomicsBGI‐ShenzhenShenzhenChina
| | - Edita Gregová
- National Agricultural and Food CentreResearch Institute of Plant ProductionPiešťanySlovakia
| | - Wenlong Yang
- State Key Laboratory of Plant Cell and Chromosome EngineeringNational Center for Plant Gene ResearchInstitute of Genetics and Developmental Biology/Innovation Academy of Seed DesignChinese Academy of SciencesBeijingChina
| | - Xin Li
- State Key Laboratory of Plant Cell and Chromosome EngineeringNational Center for Plant Gene ResearchInstitute of Genetics and Developmental Biology/Innovation Academy of Seed DesignChinese Academy of SciencesBeijingChina
| | - Jiazhu Sun
- State Key Laboratory of Plant Cell and Chromosome EngineeringNational Center for Plant Gene ResearchInstitute of Genetics and Developmental Biology/Innovation Academy of Seed DesignChinese Academy of SciencesBeijingChina
| | - Kehui Zhan
- Agronomy CollegeNational Key Laboratory of Wheat and Maize Crop ScienceCollaborative Innovation Center of Grain Crops in HenanHenan Agricultural UniversityZhengzhouChina
| | - Dangqun Cui
- Agronomy CollegeNational Key Laboratory of Wheat and Maize Crop ScienceCollaborative Innovation Center of Grain Crops in HenanHenan Agricultural UniversityZhengzhouChina
| | - Dongcheng Liu
- State Key Laboratory of Plant Cell and Chromosome EngineeringNational Center for Plant Gene ResearchInstitute of Genetics and Developmental Biology/Innovation Academy of Seed DesignChinese Academy of SciencesBeijingChina
- Advanced Biotechnology and Application Research CenterSchool of Chemistry and Biological EngineeringUniversity of Science and Technology BeijingBeijingChina
| | - Aimin Zhang
- State Key Laboratory of Plant Cell and Chromosome EngineeringNational Center for Plant Gene ResearchInstitute of Genetics and Developmental Biology/Innovation Academy of Seed DesignChinese Academy of SciencesBeijingChina
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20
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Li Y, Fu J, Shen Q, Yang D. High-Molecular-Weight Glutenin Subunits: Genetics, Structures, and Relation to End Use Qualities. Int J Mol Sci 2020; 22:E184. [PMID: 33375389 PMCID: PMC7795185 DOI: 10.3390/ijms22010184] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Revised: 12/16/2020] [Accepted: 12/23/2020] [Indexed: 02/06/2023] Open
Abstract
High-molecular-weight glutenin subunits (HMW-GSs) are storage proteins present in the starchy endosperm cells of wheat grain. Encoding the synthesis of HMW-GS, the Glu-1 loci located on the long arms of group 1 chromosomes of the hexaploid wheat (1A, 1B, and 1D) present multiple allelism. In hexaploid wheat cultivars, almost all of them express 3 to 5 HMW-GSs and the 1Ay gene is always silent. Though HMW-GSs are the minor components in gluten, they are crucial for dough properties, and certain HMW-GSs make more positive contributions than others. The HMW-GS acts as a "chain extender" and provides a disulfide-bonded backbone in gluten network. Hydrogen bonds mediated by glutamine side chains are also crucial for stabilizing the gluten structure. In most cases, HMW-GSs with additional or less cysteines are related to the formation of relatively more or less interchain disulfide bonds and HMW-GSs also affect the gluten secondary structures, which in turn impact the end use qualities of dough.
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Affiliation(s)
- Yi Li
- Beijing Key Laboratory of Functional Food from Plant Resources, College of Food Science & Nutritional Engineering, China Agricultural University, 17 East Tsinghua Rd., Beijing 100083, China; (Y.L.); (J.F.)
- Xinghua Industrial Research Centre for Food Science and Human Health, China Agricultural University, Xinghua 225700, China
| | - Jiahui Fu
- Beijing Key Laboratory of Functional Food from Plant Resources, College of Food Science & Nutritional Engineering, China Agricultural University, 17 East Tsinghua Rd., Beijing 100083, China; (Y.L.); (J.F.)
| | - Qun Shen
- Key Laboratory of Plant Protein and Grain Processing, National Engineering Research Center for Fruit and Vegetable Processing, China Agricultural University, 17 East Tsinghua Rd., Beijing 100083, China;
| | - Dong Yang
- Beijing Key Laboratory of Functional Food from Plant Resources, College of Food Science & Nutritional Engineering, China Agricultural University, 17 East Tsinghua Rd., Beijing 100083, China; (Y.L.); (J.F.)
- Xinghua Industrial Research Centre for Food Science and Human Health, China Agricultural University, Xinghua 225700, China
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21
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Sharma H, Bhandawat A, Kumar P, Rahim MS, Parveen A, Kumar P, Madhawan A, Rishi V, Roy J. Development and characterization of bZIP transcription factor based SSRs in wheat. Gene 2020; 756:144912. [PMID: 32574760 DOI: 10.1016/j.gene.2020.144912] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 05/31/2020] [Accepted: 06/17/2020] [Indexed: 02/08/2023]
Abstract
Assessment of existing diversity is the key for germplasm conservation and crop improvement. Wheat (Triticum aestivum L.) is among the most important cereal crop and consumed by two billion world's populations. DNA-based markers are predominantly used for diversity characterization because they are easy to develop and not influenced by environment. Among them microsatellites (simple sequence repeats, SSRs) are most suitable due to their genome-wide distribution, hypervariability and reproducibility for their applications in diversity, genetic improvement, and molecular breeding. bZIP transcription factors play major roles in plants in light and stress signalling, seed development, and defence. A total of 846 SSRs were identified from 370 wheat cDNA sequences and a sub-set of 35 polymorphic TabZIPMS (TriticumaestivumbZIP MicroSatellites) was used for diversity and genetic structure analysis of 92 Indian wheat varieties and related species. 114 SSR variants ranging from 2 to 5 per SSR locus were detected for 35 SSRs in the varieties. Average polymorphic information content (PIC) and observed heterozygosity was found to be 0.135 and 0.838, respectively. Thirty-four SSRs showed cross-transferability into different related species. Combined Bayesian model and Jaccard's similarity based genetic clustering analysis revealed two clusters of 80 bread wheat varieties and one separate cluster of related species. In this study, a total 35 novel bZIP-derived SSRs were identified in a set 370 bZIP genes and shown high polymorphism and cross-species transferability in wheat. The findings provide resources for future utilization in genetic resource conservation, trait introgression, breeding and varietal development.
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Affiliation(s)
- Himanshu Sharma
- Agri-Biotechnology Division, National Agri-Food Biotechnology Institute, Knowledge City, Sector-81, Mohali, Punjab 140306, India
| | - Abhishek Bhandawat
- Agri-Biotechnology Division, National Agri-Food Biotechnology Institute, Knowledge City, Sector-81, Mohali, Punjab 140306, India
| | - Pankaj Kumar
- Agri-Biotechnology Division, National Agri-Food Biotechnology Institute, Knowledge City, Sector-81, Mohali, Punjab 140306, India
| | - Mohammed Saba Rahim
- Agri-Biotechnology Division, National Agri-Food Biotechnology Institute, Knowledge City, Sector-81, Mohali, Punjab 140306, India
| | - Afsana Parveen
- Agri-Biotechnology Division, National Agri-Food Biotechnology Institute, Knowledge City, Sector-81, Mohali, Punjab 140306, India
| | - Prashant Kumar
- Agri-Biotechnology Division, National Agri-Food Biotechnology Institute, Knowledge City, Sector-81, Mohali, Punjab 140306, India
| | - Akansha Madhawan
- Agri-Biotechnology Division, National Agri-Food Biotechnology Institute, Knowledge City, Sector-81, Mohali, Punjab 140306, India
| | - Vikas Rishi
- Agri-Biotechnology Division, National Agri-Food Biotechnology Institute, Knowledge City, Sector-81, Mohali, Punjab 140306, India
| | - Joy Roy
- Agri-Biotechnology Division, National Agri-Food Biotechnology Institute, Knowledge City, Sector-81, Mohali, Punjab 140306, India.
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22
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Guo D, Hou Q, Zhang R, Lou H, Li Y, Zhang Y, You M, Xie C, Liang R, Li B. Over-Expressing TaSPA-B Reduces Prolamin and Starch Accumulation in Wheat ( Triticum aestivum L.) Grains. Int J Mol Sci 2020; 21:E3257. [PMID: 32380646 PMCID: PMC7247331 DOI: 10.3390/ijms21093257] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2020] [Revised: 04/20/2020] [Accepted: 04/23/2020] [Indexed: 12/13/2022] Open
Abstract
Starch and prolamin composition and content are important indexes for determining the processing and nutritional quality of wheat (Triticum aestivum L.) grains. Several transcription factors (TFs) regulate gene expression during starch and protein biosynthesis in wheat. Storage protein activator (TaSPA), a member of the basic leucine zipper (bZIP) family, has been reported to activate glutenin genes and is correlated to starch synthesis related genes. In this study, we generated TaSPA-B overexpressing (OE) transgenic wheat lines. Compared with wild-type (WT) plants, the starch content was slightly reduced and starch granules exhibited a more polarized distribution in the TaSPA-B OE lines. Moreover, glutenin and ω- gliadin contents were significantly reduced, with lower expression levels of related genes (e.g., By15, Dx2, and ω-1,2 gliadin gene). RNA-seq analysis identified 2023 differentially expressed genes (DEGs). The low expression of some DEGs (e.g., SUSase, ADPase, Pho1, Waxy, SBE, SSI, and SS II a) might explain the reduction of starch contents. Some TFs involved in glutenin and starch synthesis might be regulated by TaSPA-B, for example, TaPBF was reduced in TaSPA-B OE-3 lines. In addition, dual-luciferase reporter assay indicated that both TaSPA-B and TaPBF could transactivate the promoter of ω-1,2 gliadin gene. These results suggest that TaSPA-B regulates a complex gene network and plays an important role in starch and protein biosynthesis in wheat.
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Affiliation(s)
- Dandan Guo
- Key Laboratory of Crop Heterosis and Utilization (MOE) of Ministry of Education, Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100193, China; (D.G.); (Q.H.); (R.Z.); (H.L.); (Y.L.); (Y.Z.); (M.Y.); (C.X.); (R.L.)
| | - Qiling Hou
- Key Laboratory of Crop Heterosis and Utilization (MOE) of Ministry of Education, Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100193, China; (D.G.); (Q.H.); (R.Z.); (H.L.); (Y.L.); (Y.Z.); (M.Y.); (C.X.); (R.L.)
- Beijing Engineering Research Center for Hybrid Wheat, Beijing Academy of Agricultural and Forestry Sciences, Beijing 100097, China
| | - Runqi Zhang
- Key Laboratory of Crop Heterosis and Utilization (MOE) of Ministry of Education, Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100193, China; (D.G.); (Q.H.); (R.Z.); (H.L.); (Y.L.); (Y.Z.); (M.Y.); (C.X.); (R.L.)
| | - Hongyao Lou
- Key Laboratory of Crop Heterosis and Utilization (MOE) of Ministry of Education, Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100193, China; (D.G.); (Q.H.); (R.Z.); (H.L.); (Y.L.); (Y.Z.); (M.Y.); (C.X.); (R.L.)
| | - Yinghui Li
- Key Laboratory of Crop Heterosis and Utilization (MOE) of Ministry of Education, Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100193, China; (D.G.); (Q.H.); (R.Z.); (H.L.); (Y.L.); (Y.Z.); (M.Y.); (C.X.); (R.L.)
- Institute of Evolution, University of Haifa, Mt. Carmel, Haifa 3498838, Israel
| | - Yufeng Zhang
- Key Laboratory of Crop Heterosis and Utilization (MOE) of Ministry of Education, Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100193, China; (D.G.); (Q.H.); (R.Z.); (H.L.); (Y.L.); (Y.Z.); (M.Y.); (C.X.); (R.L.)
| | - Mingshan You
- Key Laboratory of Crop Heterosis and Utilization (MOE) of Ministry of Education, Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100193, China; (D.G.); (Q.H.); (R.Z.); (H.L.); (Y.L.); (Y.Z.); (M.Y.); (C.X.); (R.L.)
| | - Chaojie Xie
- Key Laboratory of Crop Heterosis and Utilization (MOE) of Ministry of Education, Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100193, China; (D.G.); (Q.H.); (R.Z.); (H.L.); (Y.L.); (Y.Z.); (M.Y.); (C.X.); (R.L.)
| | - Rongqi Liang
- Key Laboratory of Crop Heterosis and Utilization (MOE) of Ministry of Education, Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100193, China; (D.G.); (Q.H.); (R.Z.); (H.L.); (Y.L.); (Y.Z.); (M.Y.); (C.X.); (R.L.)
| | - Baoyun Li
- Key Laboratory of Crop Heterosis and Utilization (MOE) of Ministry of Education, Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100193, China; (D.G.); (Q.H.); (R.Z.); (H.L.); (Y.L.); (Y.Z.); (M.Y.); (C.X.); (R.L.)
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23
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Wang D, Li F, Cao S, Zhang K. Genomic and functional genomics analyses of gluten proteins and prospect for simultaneous improvement of end-use and health-related traits in wheat. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2020; 133:1521-1539. [PMID: 32020238 PMCID: PMC7214497 DOI: 10.1007/s00122-020-03557-5] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Accepted: 01/24/2020] [Indexed: 05/09/2023]
Abstract
KEY MESSAGE Recent genomic and functional genomics analyses have substantially improved the understanding on gluten proteins, which are important determinants of wheat grain quality traits. The new insights obtained and the availability of precise, versatile and high-throughput genome editing technologies will accelerate simultaneous improvement of wheat end-use and health-related traits. Being a major staple food crop in the world, wheat provides an indispensable source of dietary energy and nutrients to the human population. As worldwide population grows and living standards rise in both developed and developing countries, the demand for wheat with high quality attributes increases globally. However, efficient breeding of high-quality wheat depends on critically the knowledge on gluten proteins, which mainly include several families of prolamin proteins specifically accumulated in the endospermic tissues of grains. Although gluten proteins have been studied for many decades, efficient manipulation of these proteins for simultaneous enhancement of end-use and health-related traits has been difficult because of high complexities in their expression, function and genetic variation. However, recent genomic and functional genomics analyses have substantially improved the understanding on gluten proteins. Therefore, the main objective of this review is to summarize the genomic and functional genomics information obtained in the last 10 years on gluten protein chromosome loci and genes and the cis- and trans-factors regulating their expression in the grains, as well as the efforts in elucidating the involvement of gluten proteins in several wheat sensitivities affecting genetically susceptible human individuals. The new insights gathered, plus the availability of precise, versatile and high-throughput genome editing technologies, promise to speed up the concurrent improvement of wheat end-use and health-related traits and the development of high-quality cultivars for different consumption needs.
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Affiliation(s)
- Daowen Wang
- College of Agronomy, State Key Laboratory of Wheat and Maize Crop Science, and Center for Crop Genome Engineering, Henan Agricultural University, 15 Longzi Lake College Park, Zhengzhou, 450046, China.
- State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Chinese Academy of Science, 1 West Beichen Road, Beijing, 100101, China.
| | - Feng Li
- State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Chinese Academy of Science, 1 West Beichen Road, Beijing, 100101, China
| | - Shuanghe Cao
- Institute of Crop Science, National Wheat Improvement Center, Chinese Academy of Agricultural Sciences, 12 Zhongguancun South Street, Beijing, 100081, China
| | - Kunpu Zhang
- State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Chinese Academy of Science, 1 West Beichen Road, Beijing, 100101, China.
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24
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Duan L, Han S, Wang K, Jiang P, Gu Y, Chen L, Mu J, Ye X, Li Y, Yan Y, Li X. Analyzing the action of evolutionarily conserved modules on HMW-GS 1Ax1 promoter activity. PLANT MOLECULAR BIOLOGY 2020; 102:225-237. [PMID: 31820284 DOI: 10.1007/s11103-019-00943-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Accepted: 12/04/2019] [Indexed: 06/10/2023]
Abstract
The specific and high-level expression of 1Ax1 is determined by different promoter regions. HMW-GS synthesis occurs in aleurone layer cells. Heterologous proteins can be stored in protein bodies. High-molecular-weight glutenin subunit (HMW-GS) is highly expressed in the endosperm of wheat and relative species, where their expression level and allelic variation affect the bread-making quality and nutrient quality of flour. However, the mechanism regulating HMW-GS expression remains elusive. In this study, we analyzed the distribution of cis-acting elements in the 2659-bp promoter region of the HMW-GS gene 1Ax1, which can be divided into five element-enriched regions. Fragments derived from progressive 5' deletions were used to drive GUS gene expression in transgenic wheat, which was confirmed in aleurone layer cells, inner starchy endosperm cells, starchy endosperm transfer cells, and aleurone transfer cells by histochemical staining. The promoter region ranging from - 297 to - 1 was responsible for tissue-specific expression, while fragments from - 1724 to - 618 and from - 618 to - 297 were responsible for high-level expression. Under the control of the 1Ax1 promoter, heterologous protein could be stored in the form of protein bodies in inner starchy endosperm cells, even without a special location signal. Our findings not only deepen our understanding of glutenin expression regulation, trafficking, and accumulation but also provide a strategy for the utilization of wheat endosperm as a bioreactor for the production of nutrients and metabolic products.
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Affiliation(s)
- Luning Duan
- Key Laboratory of Genetics and Biotechnology, College of Life Science, Capital Normal University, Beijing, 100048, China
| | - Shichen Han
- Key Laboratory of Genetics and Biotechnology, College of Life Science, Capital Normal University, Beijing, 100048, China
| | - Ke Wang
- National Wheat Improvement Center, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Peihong Jiang
- Key Laboratory of Genetics and Biotechnology, College of Life Science, Capital Normal University, Beijing, 100048, China
| | - Yunsong Gu
- Key Laboratory of Genetics and Biotechnology, College of Life Science, Capital Normal University, Beijing, 100048, China
| | - Lin Chen
- Key Laboratory of Genetics and Biotechnology, College of Life Science, Capital Normal University, Beijing, 100048, China
| | - Junyi Mu
- Key Laboratory of Genetics and Biotechnology, College of Life Science, Capital Normal University, Beijing, 100048, China
| | - Xingguo Ye
- National Wheat Improvement Center, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Yaxuan Li
- Key Laboratory of Genetics and Biotechnology, College of Life Science, Capital Normal University, Beijing, 100048, China
| | - Yueming Yan
- Key Laboratory of Genetics and Biotechnology, College of Life Science, Capital Normal University, Beijing, 100048, China
| | - Xiaohui Li
- Key Laboratory of Genetics and Biotechnology, College of Life Science, Capital Normal University, Beijing, 100048, China.
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