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Wang F, Zhou Z, Liu X, Zhu L, Guo B, Lv C, Zhu J, Chen ZH, Xu R. Transcriptome and metabolome analyses reveal molecular insights into waterlogging tolerance in Barley. BMC PLANT BIOLOGY 2024; 24:385. [PMID: 38724918 PMCID: PMC11080113 DOI: 10.1186/s12870-024-05091-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/19/2023] [Accepted: 05/01/2024] [Indexed: 05/13/2024]
Abstract
Waterlogging stress is one of the major abiotic stresses affecting the productivity and quality of many crops worldwide. However, the mechanisms of waterlogging tolerance are still elusive in barley. In this study, we identify key differentially expressed genes (DEGs) and differential metabolites (DM) that mediate distinct waterlogging tolerance strategies in leaf and root of two barley varieties with contrasting waterlogging tolerance under different waterlogging treatments. Transcriptome profiling revealed that the response of roots was more distinct than that of leaves in both varieties, in which the number of downregulated genes in roots was 7.41-fold higher than that in leaves of waterlogging sensitive variety after 72 h of waterlogging stress. We also found the number of waterlogging stress-induced upregulated DEGs in the waterlogging tolerant variety was higher than that of the waterlogging sensitive variety in both leaves and roots in 1 h and 72 h treatment. This suggested the waterlogging tolerant variety may respond more quickly to waterlogging stress. Meanwhile, phenylpropanoid biosynthesis pathway was identified to play critical roles in waterlogging tolerant variety by improving cell wall biogenesis and peroxidase activity through DEGs such as Peroxidase (PERs) and Cinnamoyl-CoA reductases (CCRs) to improve resistance to waterlogging. Based on metabolomic and transcriptomic analysis, we found the waterlogging tolerant variety can better alleviate the energy deficiency via higher sugar content, reduced lactate accumulation, and improved ethanol fermentation activity compared to the waterlogging sensitive variety. In summary, our results provide waterlogging tolerance strategies in barley to guide the development of elite genetic resources towards waterlogging-tolerant crop varieties.
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Affiliation(s)
- Feifei Wang
- Key Laboratory of Plant Functional Genomics of the Ministry of Education/Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding/Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops/Institutes of Agricultural Science, Yangzhou University, Yangzhou, 225009, China
| | - Zhenxiang Zhou
- Key Laboratory of Plant Functional Genomics of the Ministry of Education/Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding/Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops/Institutes of Agricultural Science, Yangzhou University, Yangzhou, 225009, China
| | - Xiaohui Liu
- College of Food and Pharmaceutical Engineering, Guizhou Institute of Technology, Guiyang, 550003, China
| | - Liang Zhu
- Key Laboratory of Plant Functional Genomics of the Ministry of Education/Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding/Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops/Institutes of Agricultural Science, Yangzhou University, Yangzhou, 225009, China
| | - Baojian Guo
- Key Laboratory of Plant Functional Genomics of the Ministry of Education/Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding/Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops/Institutes of Agricultural Science, Yangzhou University, Yangzhou, 225009, China
| | - Chao Lv
- Key Laboratory of Plant Functional Genomics of the Ministry of Education/Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding/Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops/Institutes of Agricultural Science, Yangzhou University, Yangzhou, 225009, China
| | - Juan Zhu
- Key Laboratory of Plant Functional Genomics of the Ministry of Education/Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding/Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops/Institutes of Agricultural Science, Yangzhou University, Yangzhou, 225009, China
| | - Zhong-Hua Chen
- School of Science, Hawkesbury Institute for the Environment, Western Sydney University, Penrith, NSW, 2751, Australia
| | - Rugen Xu
- Key Laboratory of Plant Functional Genomics of the Ministry of Education/Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding/Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops/Institutes of Agricultural Science, Yangzhou University, Yangzhou, 225009, China.
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O'Lone CE, Juhász A, Nye-Wood M, Dunn H, Moody D, Ral JP, Colgrave ML. Proteomic exploration reveals a metabolic rerouting due to low oxygen during controlled germination of malting barley ( Hordeum vulgare L.). FRONTIERS IN PLANT SCIENCE 2023; 14:1305381. [PMID: 38186599 PMCID: PMC10771735 DOI: 10.3389/fpls.2023.1305381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Accepted: 11/20/2023] [Indexed: 01/09/2024]
Abstract
Barley (Hordeum vulgare L.) is used in malt production for brewing applications. Barley malting involves a process of controlled germination that modifies the grain by activating enzymes to solubilize starch and proteins for brewing. Initially, the grain is submerged in water to raise grain moisture, requiring large volumes of water. Achieving grain modification at reduced moisture levels can contribute to the sustainability of malting practices. This study combined proteomics, bioinformatics, and biochemical phenotypic analysis of two malting barley genotypes with observed differences in water uptake and modification efficiency. We sought to reveal the molecular mechanisms at play during controlled germination and explore the roles of protein groups at 24 h intervals across the first 72 h. Overall, 3,485 protein groups were identified with 793 significant differentially abundant (DAP) within and between genotypes, involved in various biological processes, including protein synthesis, carbohydrate metabolism, and hydrolysis. Functional integration into metabolic pathways, such as glycolysis, pyruvate, starch and sucrose metabolism, revealed a metabolic rerouting due to low oxygen enforced by submergence during controlled germination. This SWATH-MS study provides a comprehensive proteome reference, delivering new insights into the molecular mechanisms underlying the impacts of low oxygen during controlled germination. It is concluded that continued efficient modification of malting barley subjected to submergence is largely due to the capacity to reroute energy to maintain vital processes, particularly protein synthesis.
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Affiliation(s)
- Clare E. O'Lone
- Australian Research Council Centre of Excellence for Innovations in Peptide and Protein Science, Edith Cowan University, School of Science, Joondalup, WA, Australia
- Commonwealth Scientific and Industrial Research Organization, Agriculture and Food, ACT, Canberra, ACT, Australia
| | - Angéla Juhász
- Australian Research Council Centre of Excellence for Innovations in Peptide and Protein Science, Edith Cowan University, School of Science, Joondalup, WA, Australia
| | - Mitchell Nye-Wood
- Australian Research Council Centre of Excellence for Innovations in Peptide and Protein Science, Edith Cowan University, School of Science, Joondalup, WA, Australia
| | - Hugh Dunn
- Pilot Malting Australia, Edith Cowan University, School of Science, Joondalup, WA, Australia
| | - David Moody
- Barley Breeding, InterGrain Pty Ltd, Bibra Lake, WA, Australia
| | - Jean-Philippe Ral
- Commonwealth Scientific and Industrial Research Organization, Agriculture and Food, ACT, Canberra, ACT, Australia
| | - Michelle L. Colgrave
- Australian Research Council Centre of Excellence for Innovations in Peptide and Protein Science, Edith Cowan University, School of Science, Joondalup, WA, Australia
- Commonwealth Scientific and Industrial Research Organization, Agriculture and Food, Brisbane, QLD, Australia
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Miricescu A, Brazel AJ, Beegan J, Wellmer F, Graciet E. Transcriptional analysis in multiple barley varieties identifies signatures of waterlogging response. PLANT DIRECT 2023; 7:e518. [PMID: 37577136 PMCID: PMC10422865 DOI: 10.1002/pld3.518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 07/17/2023] [Accepted: 07/18/2023] [Indexed: 08/15/2023]
Abstract
Waterlogging leads to major crop losses globally, particularly for waterlogging-sensitive crops such as barley. Waterlogging reduces oxygen availability and results in additional stresses, leading to the activation of hypoxia and stress response pathways that promote plant survival. Although certain barley varieties have been shown to be more tolerant to waterlogging than others and some tolerance-related quantitative trait loci have been identified, the molecular mechanisms underlying this trait are mostly unknown. Transcriptomics approaches can provide very valuable information for our understanding of waterlogging tolerance. Here, we surveyed 21 barley varieties for the differential transcriptional activation of conserved hypoxia-response genes under waterlogging and selected five varieties with different levels of induction of core hypoxia-response genes. We further characterized their phenotypic response to waterlogging in terms of shoot and root traits. RNA sequencing to evaluate the genome-wide transcriptional responses to waterlogging of these selected varieties led to the identification of a set of 98 waterlogging-response genes common to the different datasets. Many of these genes are orthologs of the so-called "core hypoxia response genes," thus highlighting the conservation of plant responses to waterlogging. Hierarchical clustering analysis also identified groups of genes with intrinsic differential expression between varieties prior to waterlogging stress. These genes could constitute interesting candidates to study "predisposition" to waterlogging tolerance or sensitivity in barley.
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Affiliation(s)
- Alexandra Miricescu
- Department of BiologyMaynooth UniversityMaynoothIreland
- Pesticide Registration DivisionDepartment of Agriculture, Food and the Marine, Backweston CampusCelbridgeIreland
| | | | - Joseph Beegan
- Smurfit Institute of GeneticsTrinity College DublinDublinIreland
| | - Frank Wellmer
- Smurfit Institute of GeneticsTrinity College DublinDublinIreland
| | - Emmanuelle Graciet
- Department of BiologyMaynooth UniversityMaynoothIreland
- Kathleen Lonsdale Institute for Human Health ResearchMaynooth UniversityMaynoothIreland
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Umer MJ, Zheng J, Yang M, Batool R, Abro AA, Hou Y, Xu Y, Gebremeskel H, Wang Y, Zhou Z, Cai X, Liu F, Zhang B. Insights to Gossypium defense response against Verticillium dahliae: the Cotton Cancer. Funct Integr Genomics 2023; 23:142. [PMID: 37121989 DOI: 10.1007/s10142-023-01065-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 04/15/2023] [Accepted: 04/19/2023] [Indexed: 05/02/2023]
Abstract
The soil-borne pathogen Verticillium dahliae, also referred as "The Cotton Cancer," is responsible for causing Verticillium wilt in cotton crops, a destructive disease with a global impact. To infect cotton plants, the pathogen employs multiple virulence mechanisms such as releasing enzymes that degrade cell walls, activating genes that contribute to virulence, and using protein effectors. Conversely, cotton plants have developed numerous defense mechanisms to combat the impact of V. dahliae. These include strengthening the cell wall by producing lignin and depositing callose, discharging reactive oxygen species, and amassing hormones related to defense. Despite the efforts to develop resistant cultivars, there is still no permanent solution to Verticillium wilt due to a limited understanding of the underlying molecular mechanisms that drive both resistance and pathogenesis is currently prevalent. To address this challenge, cutting-edge technologies such as clustered regularly interspaced short palindromic repeats (CRISPR)/CRISPR-associated protein 9 (Cas9), host-induced gene silencing (HIGS), and gene delivery via nano-carriers could be employed as effective alternatives to control the disease. This article intends to present an overview of V. dahliae virulence mechanisms and discuss the different cotton defense mechanisms against Verticillium wilt, including morphophysiological and biochemical responses and signaling pathways including jasmonic acid (JA), salicylic acid (SA), ethylene (ET), and strigolactones (SLs). Additionally, the article highlights the significance of microRNAs (miRNAs), circular RNAs (circRNAs), and long non-coding RNAs (lncRNAs) in gene expression regulation, as well as the different methods employed to identify and functionally validate genes to achieve resistance against this disease. Gaining a more profound understanding of these mechanisms could potentially result in the creation of more efficient strategies for combating Verticillium wilt in cotton crops.
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Affiliation(s)
- Muhammad Jawad Umer
- State Key Laboratory of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, China
| | - Jie Zheng
- State Key Laboratory of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, China
- Hainan Yazhou Bay Seed Laboratory, China/National Nanfan, Research Institute of Chinese Academy of Agricultural Sciences, Sanya, 572025, China
| | - Mengying Yang
- State Key Laboratory of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, China
- School of Agricultural Sciences, Zhengzhou University, Zhengzhou, China
| | - Raufa Batool
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Aamir Ali Abro
- State Key Laboratory of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, China
| | - Yuqing Hou
- State Key Laboratory of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, China
| | - Yanchao Xu
- State Key Laboratory of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, China
| | - Haileslassie Gebremeskel
- Mehoni Agricultural Research Center, Ethiopian Institute of Agricultural Research, Addis Ababa, Ethiopia
| | - Yuhong Wang
- State Key Laboratory of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, China
| | - ZhongLi Zhou
- State Key Laboratory of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, China
| | - Xiaoyan Cai
- State Key Laboratory of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, China
- Hainan Yazhou Bay Seed Laboratory, China/National Nanfan, Research Institute of Chinese Academy of Agricultural Sciences, Sanya, 572025, China
- Zhengzhou Research Base, State Key Laboratory of Cotton Biology, Zhengzhou University/Institute of Cotton Research, Chinese Academy of Agricultural Science, Anyang, China
| | - Fang Liu
- State Key Laboratory of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, China.
- Hainan Yazhou Bay Seed Laboratory, China/National Nanfan, Research Institute of Chinese Academy of Agricultural Sciences, Sanya, 572025, China.
- School of Agricultural Sciences, Zhengzhou University, Zhengzhou, China.
- Zhengzhou Research Base, State Key Laboratory of Cotton Biology, Zhengzhou University/Institute of Cotton Research, Chinese Academy of Agricultural Science, Anyang, China.
| | - Baohong Zhang
- State Key Laboratory of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, China.
- Department of Biology, East Carolina University, Greenville, NC, 27858, USA.
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Tyagi A, Ali S, Park S, Bae H. Exploring the Potential of Multiomics and Other Integrative Approaches for Improving Waterlogging Tolerance in Plants. PLANTS (BASEL, SWITZERLAND) 2023; 12:1544. [PMID: 37050170 PMCID: PMC10096958 DOI: 10.3390/plants12071544] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 03/28/2023] [Accepted: 03/30/2023] [Indexed: 06/19/2023]
Abstract
Soil flooding has emerged as a serious threat to modern agriculture due to the rapid global warming and climate change, resulting in catastrophic crop damage and yield losses. The most detrimental effects of waterlogging in plants are hypoxia, decreased nutrient uptake, photosynthesis inhibition, energy crisis, and microbiome alterations, all of which result in plant death. Although significant advancement has been made in mitigating waterlogging stress, it remains largely enigmatic how plants perceive flood signals and translate them for their adaptive responses at a molecular level. With the advent of multiomics, there has been significant progress in understanding and decoding the intricacy of how plants respond to different stressors which have paved the way towards the development of climate-resistant smart crops. In this review, we have provided the overview of the effect of waterlogging in plants, signaling (calcium, reactive oxygen species, nitric oxide, hormones), and adaptive responses. Secondly, we discussed an insight into past, present, and future prospects of waterlogging tolerance focusing on conventional breeding, transgenic, multiomics, and gene-editing approaches. In addition, we have also highlighted the importance of panomics for developing waterlogging-tolerant cultivars. Furthermore, we have discussed the role of high-throughput phenotyping in the screening of complex waterlogging-tolerant traits. Finally, we addressed the current challenges and future perspectives of waterlogging signal perception and transduction in plants, which warrants future investigation.
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He N, Umer MJ, Yuan P, Wang W, Zhu H, Lu X, xing Y, Gong C, Batool R, Sun X, Liu W. Physiological, biochemical, and metabolic changes in diploid and triploid watermelon leaves during flooding. FRONTIERS IN PLANT SCIENCE 2023; 14:1108795. [PMID: 36968389 PMCID: PMC10033695 DOI: 10.3389/fpls.2023.1108795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Accepted: 02/13/2023] [Indexed: 06/18/2023]
Abstract
BACKGROUND Flooding is a major stress factor impacting watermelon growth and production globally. Metabolites play a crucial role in coping with both biotic and abiotic stresses. METHODS In this study, diploid (2X) and triploid (3X) watermelons were investigated to determine their flooding tolerance mechanisms by examining physiological, biochemical, and metabolic changes at different stages. Metabolite quantification was done using UPLC-ESI-MS/MS and a total of 682 metabolites were detected. RESULTS The results showed that 2X watermelon leaves had lower chlorophyll content and fresh weights compared to 3X. The activities of antioxidants, such as superoxide dismutase (SOD), peroxidase (POD), and catalase (CAT), were higher in 3X than in 2X. 3X watermelon leaves showed lower O2 production rates, MDA, and hydrogen peroxide (H2O2) levels in response to flooding, while higher ethylene production was observed. 3X had higher levels of dehydrogenase activity (DHA) and ascorbic acid + dehydrogenase (AsA + DHA), but both 2X and 3X showed a significant decline in the AsA/DHA ratio at later stages of flooding. Among them, 4-guanidinobutyric acid (mws0567), an organic acid, may be a candidate metabolite responsible for flooding tolerance in watermelon and had higher expression levels in 3X watermelon, suggesting that triploid watermelon is more tolerant to flooding. CONCLUSION This study provides insights into the response of 2X and 3X watermelon to flooding and the physiological, biochemical, and metabolic changes involved. It will serve as a foundation for future in-depth molecular and genetic studies on flooding response in watermelon.
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Affiliation(s)
- Nan He
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou, China
- Department of Horticulture, Hunan Agricultural University, Changsha, Hunan, China
| | - Muhammad Jawad Umer
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou, China
- State Key Laboratory of Cotton Biology/Institute of Cotton Research, Chinese Academy of Agricultural Sciences (ICR, CAAS), Anyang, Henan, China
| | - Pingli Yuan
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou, China
| | - Weiwei Wang
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou, China
| | - Hongju Zhu
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou, China
| | - Xuqiang Lu
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou, China
| | - Yan xing
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou, China
| | - Chengsheng Gong
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou, China
| | - Raufa Batool
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Xiaowu Sun
- Department of Horticulture, Hunan Agricultural University, Changsha, Hunan, China
| | - Wenge Liu
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou, China
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Luan H, Li H, Li Y, Chen C, Li S, Wang Y, Yang J, Xu M, Shen H, Qiao H, Wang J. Transcriptome analysis of barley (Hordeum vulgare L.) under waterlogging stress, and overexpression of the HvADH4 gene confers waterlogging tolerance in transgenic Arabidopsis. BMC PLANT BIOLOGY 2023; 23:62. [PMID: 36710329 PMCID: PMC9885653 DOI: 10.1186/s12870-023-04081-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/02/2022] [Accepted: 01/23/2023] [Indexed: 06/18/2023]
Abstract
BACKGROUND Waterlogging is one of the major abiotic stresses in barley and greatly reduces grain yield and quality. To explore the mechanism controlling waterlogging tolerance in barley, physiological, anatomical and transcriptional analyses were performed in two contrasting barley varieties, viz. Franklin (susceptible) and TX9425 (tolerant). RESULTS Compared to Franklin, TX9425 had more adventitious roots and aerenchymas and higher antioxidant enzyme activities. A total of 3064 and 5693 differentially expressed genes (DEGs) were identified in TX9425 after 24 h and 72 h of waterlogging treatment, respectively, while 2297 and 8462 DEGs were identified in Franklin. The results suggested that TX9425 was less affected by waterlogging stress after 72 h of treatment. The DEGs were enriched mainly in energy metabolism, hormone regulation, reactive oxygen species (ROS) scavenging, and cell wall-modifying enzymes. Alcohol dehydrogenase (ADH) plays an important role in response to waterlogging stress. We found that HvADH4 was significantly upregulated under waterlogging stress in TX9425. Transgenic Arabidopsis overexpressing HvADH4 displayed higher activity of antioxidant enzymes and was more tolerant to waterlogging than the wild type (WT). CONCLUSIONS The current results provide valuable information that will be of great value for the exploration of new candidate genes for molecular breeding of waterlogging tolerance in barley.
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Affiliation(s)
- Haiye Luan
- College of Marine and Biological Engineering, Yancheng Teachers University, Yancheng, 224002 Jiangsu China
- Jiangsu Provincial Key Laboratory of Coastal Wetland Bioresources and Environmental Protection, Yancheng, 224002 Jiangsu China
| | - Hongtao Li
- Lianyungang Academy of Agricultural Sciences, Lianyungang, 222000 China
| | - Yu Li
- College of Marine and Biological Engineering, Yancheng Teachers University, Yancheng, 224002 Jiangsu China
| | - Changyu Chen
- College of Marine and Biological Engineering, Yancheng Teachers University, Yancheng, 224002 Jiangsu China
| | - Shufeng Li
- Lianyungang Academy of Agricultural Sciences, Lianyungang, 222000 China
| | - Yu Wang
- College of Marine and Biological Engineering, Yancheng Teachers University, Yancheng, 224002 Jiangsu China
| | - Ju Yang
- College of Marine and Biological Engineering, Yancheng Teachers University, Yancheng, 224002 Jiangsu China
| | - Meng Xu
- College of Marine and Biological Engineering, Yancheng Teachers University, Yancheng, 224002 Jiangsu China
| | - Huiquan Shen
- Institute of Agricultural Science in Jiangsu Coastal Areas, Yancheng, 224002 China
| | - Hailong Qiao
- Institute of Agricultural Science in Jiangsu Coastal Areas, Yancheng, 224002 China
| | - Jun Wang
- Lianyungang Academy of Agricultural Sciences, Lianyungang, 222000 China
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Luan H, Chen C, Yang J, Qiao H, Li H, Li S, Zheng J, Shen H, Xu X, Wang J. Genome-wide association scan and transcriptome analysis reveal candidate genes for waterlogging tolerance in cultivated barley. FRONTIERS IN PLANT SCIENCE 2022; 13:1048939. [PMID: 36589094 PMCID: PMC9798782 DOI: 10.3389/fpls.2022.1048939] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Accepted: 11/24/2022] [Indexed: 06/17/2023]
Abstract
Waterlogging is the primary abiotic factor that destabilizes the yield and quality of barley (Hordeum vulgare L.). However, the genetic basis of waterlogging tolerance remains poorly understood. In this study, we conducted a genome-wide association study (GWAS) by involving 106,131 single-nucleotide polymorphisms (SNPs) with a waterlogging score (WLS) of 250 barley accessions in two years. Out of 72 SNPs that were found to be associated with WLS, 34 were detected in at least two environments. We further performed the transcriptome analysis in root samples from TX9425 (waterlogging tolerant) and Franklin (waterlogging sensitive), resulting in the identification of 5,693 and 8,462 differentially expressed genes (DEGs) in these genotypes, respectively. The identified DEGs included various transcription factor (TF) genes, primarily including AP2/ERF, bZIP and MYB. By combining GWAS and RNA-seq, we identified 27 candidate genes associated with waterlogging, of which three TFs (HvDnaJ, HvMADS and HvERF1) were detected in multiple treatments. Moreover, by overexpressing barley HvERF1 in Arabidopsis, the transgenic lines were detected with enhanced waterlogging tolerance. Altogether, our results provide new insights into the genetic mechanisms of waterlogging, which have implications in the molecular breeding of waterlogging-tolerant barley varieties.
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Affiliation(s)
- Haiye Luan
- College of Marine and Biological Engineering, Yancheng Teachers University, Yancheng, Jiangsu, China
| | - Changyu Chen
- College of Marine and Biological Engineering, Yancheng Teachers University, Yancheng, Jiangsu, China
| | - Ju Yang
- College of Marine and Biological Engineering, Yancheng Teachers University, Yancheng, Jiangsu, China
| | - Hailong Qiao
- Institute of Agricultural Science in Jiangsu Coastal Areas, Yancheng, China
| | - Hongtao Li
- Lianyungang academy of agricultural sciences, Lianyungang, China
| | - Shufeng Li
- Lianyungang academy of agricultural sciences, Lianyungang, China
| | - Junyi Zheng
- College of Marine and Biological Engineering, Yancheng Teachers University, Yancheng, Jiangsu, China
- Jiangsu Provincial Key Laboratory of Coastal Wetland Bioresources and Environmental Protection, Yancheng, Jiangsu, China
| | - Huiquan Shen
- Institute of Agricultural Science in Jiangsu Coastal Areas, Yancheng, China
| | - Xiao Xu
- Institute of Agricultural Science in Jiangsu Coastal Areas, Yancheng, China
| | - Jun Wang
- Lianyungang academy of agricultural sciences, Lianyungang, China
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Xu L, Zhao C, Pang J, Niu Y, Liu H, Zhang W, Zhou M. Genome-wide association study reveals quantitative trait loci for waterlogging-triggered adventitious roots and aerenchyma formation in common wheat. FRONTIERS IN PLANT SCIENCE 2022; 13:1066752. [PMID: 36507408 PMCID: PMC9727299 DOI: 10.3389/fpls.2022.1066752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Accepted: 11/08/2022] [Indexed: 06/17/2023]
Abstract
Waterlogging severely affects wheat growth and development. Limited availability of oxygen in the root zone negatively affects the metabolism of plants. The formation of adventitious roots (ARs) and root cortical aerenchyma (RCA) are the most important adaptive trait contributing to plants' ability to survive in waterlogged soil conditions. This study used a genome-wide association study (GWAS) approach with 90K single nucleotide polymorphisms (SNPs) in a panel of 329 wheat genotypes, to reveal quantitative trait loci (QTL) conferring ARs and RCA. The wheat genotypes exposed to waterlogging were evaluated for ARs and RCA in both field and glasshouse over two consecutive years. Six and five significant marker-trait associations (MTAs) were identified for ARs and RCA formation under waterlogging, respectively. The most significant MTA for AR and RCA was found on chromosome 4B. Two wheat cultivars with contrasting waterlogging tolerance (tolerant: H-242, sensitive: H-195) were chosen to compare the development and regulation of aerenchyma in waterlogged conditions using staining methods. Results showed that under waterlogging conditions, H2O2 signal generated before aerenchyma formation in both sensitive and tolerant varieties with the tolerant variety accumulating more H2O2 and in a quicker manner compared to the sensitive one. Several genotypes which performed consistently well under different conditions can be used in breeding programs to develop waterlogging-tolerant wheat varieties.
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Affiliation(s)
- Le Xu
- MARA Key Laboratory of Sustainable Crop Production in the Middle Reaches of the Yangtze River (Co-construction by Ministry and Province), College of Agriculture, Engineering Research Centre of Ecology and Agricultural Use of Wetland, Ministry of Education, Yangtze University, Jingzhou, China
- Tasmanian Institute of Agriculture, University of Tasmania, Launceston, TAS, Australia
| | - Chenchen Zhao
- Tasmanian Institute of Agriculture, University of Tasmania, Launceston, TAS, Australia
| | - Jiayin Pang
- The UWA Institute of Agriculture and School of Agriculture and Environment, The University of Western Australia, Perth, WA, Australia
| | - Yanan Niu
- Tasmanian Institute of Agriculture, University of Tasmania, Launceston, TAS, Australia
| | - Huaqiong Liu
- MARA Key Laboratory of Sustainable Crop Production in the Middle Reaches of the Yangtze River (Co-construction by Ministry and Province), College of Agriculture, Engineering Research Centre of Ecology and Agricultural Use of Wetland, Ministry of Education, Yangtze University, Jingzhou, China
| | - Wenying Zhang
- MARA Key Laboratory of Sustainable Crop Production in the Middle Reaches of the Yangtze River (Co-construction by Ministry and Province), College of Agriculture, Engineering Research Centre of Ecology and Agricultural Use of Wetland, Ministry of Education, Yangtze University, Jingzhou, China
| | - Meixue Zhou
- Tasmanian Institute of Agriculture, University of Tasmania, Launceston, TAS, Australia
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Wang X, Wang Q, Zhang M, Zhao Y, Dong P, Zhao Y, Li H, Jia X, An P, Tang Y, Li C. Foliar Application of Spermidine Alleviates Waterlogging-Induced Damages to Maize Seedlings by Enhancing Antioxidative Capacity, Modulating Polyamines and Ethylene Biosynthesis. LIFE (BASEL, SWITZERLAND) 2022; 12:life12111921. [PMID: 36431056 PMCID: PMC9692385 DOI: 10.3390/life12111921] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 11/14/2022] [Accepted: 11/15/2022] [Indexed: 11/19/2022]
Abstract
Waterlogging is a major threat to maize production worldwide. The exogenous application of spermidine is well known to enhance plant tolerance to abiotic stresses. The role of exogenous spermidine application in waterlogging tolerance in maize was investigated in this study. Two maize varieties (a waterlogging-tolerant variety: Xundan 20 (XD20) and a waterlogging-sensitive variety: Denghai 662 (DH662)) were subjected to waterlogging stress at the seedling stage, and then foliar spraying of 0.75 mM spermidine or purified water. Findings demonstrated lower chlorophyll content, reduced growth indices, considerable increase in superoxide anion (O2-) generation rate, and H2O2/malondialdehyde accumulation in the two maize varieties under waterlogging stress compared to the control treatment. However, the tolerance variety performed better than the sensitive one. Foliar application of spermidine significantly increased antioxidant enzyme activities under waterlogging stress. In addition, the application of spermidine increased polyamine levels and led to the reduction of ethylene levels under waterlogging. Consequences of spermidine application were most apparent for the waterlogging-sensitive cultivar DH662 under waterlogging than the waterlogging-tolerant variety XD20.
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11
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He N, Umer MJ, Yuan P, Wang W, Zhu H, Zhao S, Lu X, Xing Y, Gong C, Liu W, Sun X. Expression dynamics of metabolites in diploid and triploid watermelon in response to flooding. PeerJ 2022. [DOI: 10.7717/peerj.13814] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
Watermelon (Citrullus lanatus) is an economically important cucurbitaceous crop worldwide. The productivity of watermelon is affected by both biotic and abiotic stresses. Flooding has significant impacts on the growth of watermelons by causing oxygen deficiency and a loss of agricultural productivity. Currently, we used the triploid and diploid watermelon Zhengzhou No.3 to study the dynamics of metabolites in response to flooding stress. Quantification of metabolites was performed by UPLC-ESI-MS/MS at different time intervals i.e., 0, 3, 5 and 7 days under flooding stress. We observed that the activities of oxidants were higher in the diploid watermelon, whereas the higher antioxidant activities in the triploid watermelon makes them more resistant to the flooding stress. We also observed that the root activity and the chlorophyll in the triploid watermelon plants were higher as compared to the diploid watermelon plants. Co-expression network analysis leads to the identification of twenty-four hub metabolites that might be the key metabolites linked to flooding tolerance. Resolving the underlying mechanisms for flooding tolerance and identification of key molecules serving as indicators for breeding criteria are necessary for developing flooding-resistant varieties.
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Affiliation(s)
- Nan He
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou, Henan, China
- Department of Horticulture, Hunan Agricultural University, Changsha, Hunan, China
| | - Muhammad Jawad Umer
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou, Henan, China
- State Key Laboratory of Cotton Biology/Institute of Cotton Research, Chinese Academy of Agricultural Sciences (ICR, CAAS), Anyang, Henan, China
| | - Pingli Yuan
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou, Henan, China
| | - Weiwei Wang
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou, Henan, China
| | - Hongju Zhu
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou, Henan, China
| | - Shengjie Zhao
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou, Henan, China
| | - Xuqiang Lu
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou, Henan, China
| | - Yan Xing
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou, Henan, China
| | - Chengsheng Gong
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou, Henan, China
| | - Wenge Liu
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou, Henan, China
| | - Xiaowu Sun
- Hunan Agricultural University, Changsha, Hunan, China
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12
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Yamauchi T, Nakazono M. Modeling-based age-dependent analysis reveals the net patterns of ethylene-dependent and -independent aerenchyma formation in rice and maize roots. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2022; 321:111340. [PMID: 35696932 DOI: 10.1016/j.plantsci.2022.111340] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2022] [Revised: 04/16/2022] [Accepted: 05/24/2022] [Indexed: 06/15/2023]
Abstract
Plants require oxygen for the functioning of roots, and thus the establishment of a long-distance diffusion path from above-water tissues to the submerged roots is essential to survive flooding. Rice (Oryza sativa) constitutively forms aerenchyma (gas spaces) under aerobic conditions, and induces its formation in response to low-oxygen conditions. Constitutive aerenchyma formation in rice roots is regulated by the phytohormone auxin, whereas ethylene stimulates inducible aerenchyma formation. However, the net patterns of the ethylene-dependent and -independent (auxin-dependent) aerenchyma formation remain unclear. In the present study, we used a modeling approach to determine age-dependent aerenchyma formation in the wild-type rice and reduced culm number 1 mutant, in which ethylene production is reduced, to reveal the net patterns of ethylene-dependent and -independent aerenchyma formation. Subsequent comparison of age-dependent aerenchyma formation between rice and maize roots suggested that more rapid induction of ethylene-dependent aerenchyma formation and more aerenchyma in rice roots are essential to achieve efficient oxygen diffusion under low-oxygen conditions. Moreover, rice roots showed rapid increase in the expression levels of ethylene biosynthesis and responsive genes, suggesting that the local ethylene production at an early time point after root-cell emergence contributes to the rapid induction of the ethylene-dependent aerenchyma formation in rice. DATA AVAILABILITY: All data included in this study are available upon request by contact with the corresponding author.
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Affiliation(s)
- Takaki Yamauchi
- Bioscience and Biotechnology Center, Nagoya University, Nagoya, Aichi 464-8601, Japan.
| | - Mikio Nakazono
- Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Aichi 464-8601, Japan; School of Agriculture and Environment, The University of Western Australia, Crawley, WA 6009, Australia
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13
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Overview of Identified Genomic Regions Associated with Various Agronomic and Physiological Traits in Barley under Abiotic Stresses. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12105189] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Climate change has caused breeders to focus on varieties that are able to grow under unfavorable conditions, such as drought, high and low temperatures, salinity, and other stressors. In recent decades, progress in biotechnology and its related tools has provided opportunities to dissect and decipher the genetic basis of tolerance to various stress conditions. One such approach is the identification of genomic regions that are linked with specific or multiple characteristics. Cereal crops have a key role in supplying the energy required for human and animal populations. However, crop products are dramatically affected by various environmental stresses. Barley (Hordeum vulgare L.) is one of the oldest domesticated crops that is cultivated globally. Research has shown that, compared with other cereals, barley is well adapted to various harsh environmental conditions. There is ample literature regarding these responses to abiotic stressors, as well as the genomic regions associated with the various morpho-physiological and biochemical traits of stress tolerance. This review focuses on (i) identifying the tolerance mechanisms that are important for stable growth and development, and (ii) the applicability of QTL mapping and association analysis in identifying genomic regions linked with stress-tolerance traits, in order to help breeders in marker-assisted selection (MAS) to quickly screen tolerant germplasms in their breeding cycles. Overall, the information presented here will inform and assist future barley breeding programs.
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14
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Patial M, Chauhan R, Chaudhary HK, Pramanick KK, Shukla AK, Kumar V, Verma RPS. Au-courant and novel technologies for efficient doubled haploid development in barley ( Hordeum vulgare L.). Crit Rev Biotechnol 2022; 43:575-593. [PMID: 35435095 DOI: 10.1080/07388551.2022.2050181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Bounteous modern and innovative biotechnological tools have resulted in progressive development in the barley breeding program. Doubled haploids developed (homozygous lines) in a single generation is significant. Since the first discovery of haploid plants in 1920 and, in particular, after discovering in vitro androgenesis in 1964 by Guha and Maheshwari, the doubled haploidy techniques have been progressively developed and constantly improved. It has shortened the cultivar development time and has been extensively used in: genetic studies, gene mapping, marker/trait association, and QTL studies. In barley, the haploid occurrence developed gradually from being a sporadic and random process (spontaneous) to haploid development by in vivo method of modified pollination or by in vitro culture of immature male or female gametophytes. Although significant improvement in DH induction protocols has been made, challenges still exist for improvement in areas such as: low efficiency, albinism, genotypic specificity etc. Here, the paper focuses on: haploidization via different in vitro, in vivo techniques, the recent advances technologies like centromere-mediated haploidization, hap induction gene, and Doubled haploid CRISPR. The au-courant work of different researchers in barley using these technologies is reviewed. Studies on different factors affecting haploid induction and work on genome doubling of barley haploids to produce DH lines via spontaneous and induced technologies has also been highlighted.
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Affiliation(s)
- Madhu Patial
- ICAR-Indian Agricultural Research Institute, Regional Station, Shimla, Himachal, India
| | - Ruchi Chauhan
- ICAR-Indian Agricultural Research Institute, Regional Station, Shimla, Himachal, India
| | | | - Kallol K Pramanick
- ICAR-Indian Agricultural Research Institute, Regional Station, Shimla, Himachal, India
| | - Arun K Shukla
- ICAR-Indian Agricultural Research Institute, Regional Station, Shimla, Himachal, India
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15
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Manik SMN, Quamruzzaman M, Zhao C, Johnson P, Hunt I, Shabala S, Zhou M. Genome-Wide Association Study Reveals Marker Trait Associations (MTA) for Waterlogging-Triggered Adventitious Roots and Aerenchyma Formation in Barley. Int J Mol Sci 2022; 23:ijms23063341. [PMID: 35328762 PMCID: PMC8954902 DOI: 10.3390/ijms23063341] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Accepted: 03/16/2022] [Indexed: 12/31/2022] Open
Abstract
Waterlogging is an environmental stress, which severely affects barley growth and development. Limited availability of oxygen in the root zone negatively affects the metabolism of the whole plant. Adventitious roots (AR) and root cortical aerenchyma (RCA) formation are the most important adaptive traits that contribute to a plant's ability to survive in waterlogged soil conditions. This study used a genome-wide association (GWAS) approach using 18,132 single nucleotide polymorphisms (SNPs) in a panel of 697 barley genotypes to reveal marker trait associations (MTA) conferring the above adaptive traits. Experiments were conducted over two consecutive years in tanks filled with soil and then validated in field experiments. GWAS analysis was conducted using general linear models (GLM), mixed linear models (MLM), and fixed and random model circulating probability unification models (FarmCPU model), with the FarmCPU showing to be the best suited model. Six and five significant (approximately -log10 (p) ≥ 5.5) MTA were identified for AR and RCA formation under waterlogged conditions, respectively. The highest -log10 (p) MTA for adventitious root and aerenchyma formation were approximately 9 and 8 on chromosome 2H and 4H, respectively. The combination of different MTA showed to be more effective in forming RCA and producing more AR under waterlogging stress. Genes from major facilitator superfamily (MFS) transporter and leucine-rich repeat (LRR) families for AR formation, and ethylene responsive factor (ERF) family genes and potassium transporter family genes for RCA formation were the potential candidate genes involved under waterlogging conditions. Several genotypes, which performed consistently well under different conditions, can be used in breeding programs to develop waterlogging-tolerant varieties.
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Affiliation(s)
- S. M. Nuruzzaman Manik
- Tasmanian Institute of Agriculture, University of Tasmania, Launceston, TAS 7250, Australia; (S.M.N.M.); (M.Q.); (C.Z.); (P.J.); (I.H.); (S.S.)
| | - Md Quamruzzaman
- Tasmanian Institute of Agriculture, University of Tasmania, Launceston, TAS 7250, Australia; (S.M.N.M.); (M.Q.); (C.Z.); (P.J.); (I.H.); (S.S.)
| | - Chenchen Zhao
- Tasmanian Institute of Agriculture, University of Tasmania, Launceston, TAS 7250, Australia; (S.M.N.M.); (M.Q.); (C.Z.); (P.J.); (I.H.); (S.S.)
| | - Peter Johnson
- Tasmanian Institute of Agriculture, University of Tasmania, Launceston, TAS 7250, Australia; (S.M.N.M.); (M.Q.); (C.Z.); (P.J.); (I.H.); (S.S.)
| | - Ian Hunt
- Tasmanian Institute of Agriculture, University of Tasmania, Launceston, TAS 7250, Australia; (S.M.N.M.); (M.Q.); (C.Z.); (P.J.); (I.H.); (S.S.)
| | - Sergey Shabala
- Tasmanian Institute of Agriculture, University of Tasmania, Launceston, TAS 7250, Australia; (S.M.N.M.); (M.Q.); (C.Z.); (P.J.); (I.H.); (S.S.)
- International Research Centre for Environmental Membrane Biology, Foshan University, Foshan 528000, China
| | - Meixue Zhou
- Tasmanian Institute of Agriculture, University of Tasmania, Launceston, TAS 7250, Australia; (S.M.N.M.); (M.Q.); (C.Z.); (P.J.); (I.H.); (S.S.)
- Correspondence:
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16
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Yan H, Harrison MT, Liu K, Wang B, Feng P, Fahad S, Meinke H, Yang R, Liu DL, Archontoulis S, Huber I, Tian X, Man J, Zhang Y, Zhou M. Crop traits enabling yield gains under more frequent extreme climatic events. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 808:152170. [PMID: 34875326 DOI: 10.1016/j.scitotenv.2021.152170] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 11/17/2021] [Accepted: 11/30/2021] [Indexed: 05/16/2023]
Abstract
Climate change (CC) in central China will change seasonal patterns of agricultural production through increasingly frequent extreme climatic events (ECEs). Breeding climate-resilient wheat (Triticum aestivum L.) genotypes may mitigate adverse effects of ECEs on crop productivity. To reveal crop traits conducive to long-term yield improvement in the target population of environments, we created 8,192 virtual genotypes with contrasting but realistic ranges of phenology, productivity and waterlogging tolerance. Using these virtual genotypes, we conducted a genotype (G) by environment (E) by management (M) factorial analysis (G×E×M) using locations distributed across the entire cereal cropping zone in mid-China. The G×E×M invoked locally-specific sowing dates under future climates that were premised on shared socioeconomic pathways SSP5-8.5, with a time horizon centred on 2080. Across the simulated adaptation landscape, productivity was primarily driven by yield components and phenology (average grain yield increase of 6-69% across sites with optimal combinations of these traits). When incident solar radiation was not limiting carbon assimilation, ideotypes with higher grain yields were characterised by earlier flowering, higher radiation-use efficiency and larger maximum kernel size. At sites with limited solar radiation, crops required longer growing periods to realise genetic yield potential, although higher radiation-use efficiency and larger maximum kernel size were again prospective traits enabling higher rates of yield gains. By 2080, extreme waterlogging stress in some regions of mid-China will impact substantially on productivity, with yield penalties of up to 1,010 kg ha-1. Ideotypes with optimal G×M could mitigate yield penalty caused by waterlogging by up to 15% under future climates. These results help distil promising crop trait by best management practice combinations that enable higher yields and robust adaptation to future climates and more frequent extreme climatic events, including flash flooding and soil waterlogging.
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Affiliation(s)
- Haoliang Yan
- Engineering Research Center of Ecology and Agricultural Use of Wetland, College of Agriculture, Yangtze University, Jingzhou 434025, Hubei, China
| | - Matthew Tom Harrison
- Tasmanian Institute of Agriculture, University of Tasmania, Burnie 7250, Tasmania, Australia
| | - Ke Liu
- Engineering Research Center of Ecology and Agricultural Use of Wetland, College of Agriculture, Yangtze University, Jingzhou 434025, Hubei, China; Tasmanian Institute of Agriculture, University of Tasmania, Burnie 7250, Tasmania, Australia.
| | - Bin Wang
- New South Wales Department of Primary Industries, Wagga Wagga Agriculture Institute, Wagga Wagga, New South Wales 2650, Australia
| | - Puyu Feng
- College of Land Science and Technology, China Agricultural University, Beijing 100193, China
| | - Shah Fahad
- Hainan Key Laboratory for Sustainable Utilization of Tropical Bioresource, College of Tropical Crops, Hainan University, Haikou 570228, Hainan, China; Department of Agronomy, The University of Haripur, Haripur, Khyber Pakhtunkhwa 22620, Pakistan
| | - Holger Meinke
- University of Tasmania, Hobart 7001, Tasmania, Australia
| | - Rui Yang
- Engineering Research Center of Ecology and Agricultural Use of Wetland, College of Agriculture, Yangtze University, Jingzhou 434025, Hubei, China
| | - De Li Liu
- New South Wales Department of Primary Industries, Wagga Wagga Agriculture Institute, Wagga Wagga, New South Wales 2650, Australia
| | | | - Isaiah Huber
- Department of Agronomy, Iowa State University, Ames, IA 50011, United States
| | - Xiaohai Tian
- Engineering Research Center of Ecology and Agricultural Use of Wetland, College of Agriculture, Yangtze University, Jingzhou 434025, Hubei, China
| | - Jianguo Man
- MARA Key Laboratory of Crop Ecophysiology and Farming System in the Middle Reaches of the Yangtze River, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Yunbo Zhang
- Engineering Research Center of Ecology and Agricultural Use of Wetland, College of Agriculture, Yangtze University, Jingzhou 434025, Hubei, China.
| | - Meixue Zhou
- Tasmanian Institute of Agriculture, University of Tasmania, Burnie 7250, Tasmania, Australia
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17
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Chattopadhyay K, Chakraborty K, Samal P, Sarkar RK. Identification of QTLs for stagnant flooding tolerance in rice employing genotyping by sequencing of a RIL population derived from Swarna × Rashpanjor. PHYSIOLOGY AND MOLECULAR BIOLOGY OF PLANTS : AN INTERNATIONAL JOURNAL OF FUNCTIONAL PLANT BIOLOGY 2021; 27:2893-2909. [PMID: 35035143 PMCID: PMC8720131 DOI: 10.1007/s12298-021-01107-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Revised: 11/15/2021] [Accepted: 11/23/2021] [Indexed: 05/04/2023]
Abstract
UNLABELLED In lowland rice ecosystems stagnant flooding or partial submergence has a significant negative impact on important yield attributing traits resulting in substantial grain yield reduction. Genetics of this stress is not yet studied intensively. Rashpanjor (IC 575321), a landrace from India, was identified and used as the tolerant donor for stagnant flooding and was crossed with high yielding variety Swarna to develop the RIL population for the present investigation. Yield and yield attributing traits of 180 F2:8 lines in rainfed non-stressed and stressed (stagnant flooding with 45 ± 5 cm standing water) conditions were recorded in the wet season of 2018 and stress susceptibility and tolerance indices of yield component traits were deduced. Homo-polymorphic high-quality SNPs between two parents derived from genotyping by sequencing were employed and 17 putative QTLs for plant height, shoot elongation, panicle number, grain weight, panicle length in control and stagnant flooding conditions were identified. Tolerance and susceptibility indexes for these traits were detected in chromosomes 1, 3, 4, 5, 6, 10, 11, and 12 with PVE ranging from 6.53 to 57.89%. Two major QTLs clusters were found for stress susceptibility index of grain and panicle weight on chromosome 1 and plant height in non-stress condition and stress tolerance index of elongation ability on chromosome 3. Putative functional genes present either in associated non-synonymous SNPs or inside the QTL regions were also predicted. Some of them were directly associated with ethylene biosynthesis and encoding auxin responsive factors for better adaptation under stagnant flooding and also coded for different transcription factors viz. NAC domain-binding protein, WRKY gene family, and MYB class known for ROS scavenging and production of metabolites to enhance tolerance to stagnant flooding. SUPPLEMENTARY INFORMATION The online version contains supplementary material available at 10.1007/s12298-021-01107-x.
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Affiliation(s)
| | - Koushik Chakraborty
- Division of Crop Physiology and Biochemistry, ICAR-National Rice Research Institute, Cuttack, India
| | - Prabhudatta Samal
- Crop Improvement Division, ICAR-National Rice Research Institute, Cuttack, India
| | - Ramani Kumar Sarkar
- Division of Crop Physiology and Biochemistry, ICAR-National Rice Research Institute, Cuttack, India
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18
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Pan R, Han H, Medison MB, Abou-Elwafa SF, Liu Y, Yang X, Zhang W. Aerenchyma formation in the root of leaf-vegetable sweet potato: Programmed cell death initiated by ethylene-mediated H 2 O 2 accumulation. PHYSIOLOGIA PLANTARUM 2021; 173:2361-2375. [PMID: 34671988 DOI: 10.1111/ppl.13587] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Accepted: 10/07/2021] [Indexed: 06/13/2023]
Abstract
Sweet potato, commonly planted in Southeast Asia and South America with abundant rainfall, often suffers from waterlogging. The aerenchyma formation in roots is an effective way for plants to facilitate gas exchange. In the present study, tolerant and sensitive varieties, respectively, designated NC1 and C211, were evaluated under water oxygen content at 2.0 mg·L-1 (hypoxia treatment) and 8.0 mg·L-1 (control). The results showed that NC1 variety has a relatively higher root growth rate under low oxygen condition. In NC1 plants, aerenchyma was observed in the mid-section of the main adventitious root and spread to the proximal and distal ends, forming a complete channel in the cortex. However, in C211 plants, the aerenchyma occurred relatively later and could not turn into a whole channel. Ethylene synthesis-related (ACS1, ACS4, ACS5, etc.) and signal transduction-related (ETR1, ERS1, EIN2, etc.) genes were upregulated in the NC1 plants and led to changes in the reactive oxygen species-related genes (RBOHA, SOD, CAT, etc.) and enzyme activities. It was found that programmed cell death was induced by H2 O2 accumulation. A regulatory model of lysigenous aerenchyma formation in the root of sweet potato was constructed. Our study enriches the understanding of the mechanisms of the aerenchyma formation in plants.
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Affiliation(s)
- Rui Pan
- Research Center of Crop Stresses Resistance Technologies/Engineering Research Centre of Ecology and Agricultural Use of Wetland, Ministry of Education, Yangtze University, Jingzhou, China
| | - Hui Han
- Research Center of Crop Stresses Resistance Technologies/Engineering Research Centre of Ecology and Agricultural Use of Wetland, Ministry of Education, Yangtze University, Jingzhou, China
| | - Milca Banda Medison
- Research Center of Crop Stresses Resistance Technologies/Engineering Research Centre of Ecology and Agricultural Use of Wetland, Ministry of Education, Yangtze University, Jingzhou, China
| | | | - Yi Liu
- Research Center of Crop Stresses Resistance Technologies/Engineering Research Centre of Ecology and Agricultural Use of Wetland, Ministry of Education, Yangtze University, Jingzhou, China
- Hubei Sweet potato Engineering and Technology Research Centre, Hubei Academy of Agricultural Sciences, Wuhan, China
| | - Xinsun Yang
- Hubei Sweet potato Engineering and Technology Research Centre, Hubei Academy of Agricultural Sciences, Wuhan, China
| | - Wenying Zhang
- Research Center of Crop Stresses Resistance Technologies/Engineering Research Centre of Ecology and Agricultural Use of Wetland, Ministry of Education, Yangtze University, Jingzhou, China
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19
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Borrego-Benjumea A, Carter A, Zhu M, Tucker JR, Zhou M, Badea A. Genome-Wide Association Study of Waterlogging Tolerance in Barley ( Hordeum vulgare L.) Under Controlled Field Conditions. FRONTIERS IN PLANT SCIENCE 2021; 12:711654. [PMID: 34512694 PMCID: PMC8427447 DOI: 10.3389/fpls.2021.711654] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Accepted: 07/21/2021] [Indexed: 06/01/2023]
Abstract
Waterlogging is one of the main abiotic stresses severely reducing barley grain yield. Barley breeding programs focusing on waterlogging tolerance require an understanding of genetic loci and alleles in the current germplasm. In this study, 247 worldwide spring barley genotypes grown under controlled field conditions were genotyped with 35,926 SNPs with minor allele frequency (MAF) > 0.05. Significant phenotypic variation in each trait, including biomass, spikes per plant, grains per plant, kernel weight per plant, plant height and chlorophyll content, was observed. A genome-wide association study (GWAS) based on linkage disequilibrium (LD) for waterlogging tolerance was conducted. Population structure analysis divided the population into three subgroups. A mixed linkage model using both population structure and kinship matrix (Q+K) was performed. We identified 17 genomic regions containing 51 significant waterlogging-tolerance-associated markers for waterlogging tolerance response, accounting for 5.8-11.5% of the phenotypic variation, with a majority of them localized on chromosomes 1H, 2H, 4H, and 5H. Six novel QTL were identified and eight potential candidate genes mediating responses to abiotic stresses were located at QTL associated with waterlogging tolerance. To our awareness, this is the first GWAS for waterlogging tolerance in a worldwide barley collection under controlled field conditions. The marker-trait associations could be used in the marker-assisted selection of waterlogging tolerance and will facilitate barley breeding.
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Affiliation(s)
- Ana Borrego-Benjumea
- Brandon Research and Development Centre, Agriculture and Agri-Food Canada, Brandon, MB, Canada
| | - Adam Carter
- Brandon Research and Development Centre, Agriculture and Agri-Food Canada, Brandon, MB, Canada
| | - Min Zhu
- College of Agriculture, Yangzhou University, Yangzhou, China
| | - James R. Tucker
- Brandon Research and Development Centre, Agriculture and Agri-Food Canada, Brandon, MB, Canada
| | - Meixue Zhou
- Tasmanian Institute of Agriculture, University of Tasmania, Hobart, TAS, Australia
| | - Ana Badea
- Brandon Research and Development Centre, Agriculture and Agri-Food Canada, Brandon, MB, Canada
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20
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Tong C, Hill CB, Zhou G, Zhang XQ, Jia Y, Li C. Opportunities for Improving Waterlogging Tolerance in Cereal Crops-Physiological Traits and Genetic Mechanisms. PLANTS (BASEL, SWITZERLAND) 2021; 10:plants10081560. [PMID: 34451605 PMCID: PMC8401455 DOI: 10.3390/plants10081560] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Revised: 07/12/2021] [Accepted: 07/28/2021] [Indexed: 05/22/2023]
Abstract
Waterlogging occurs when soil is saturated with water, leading to anaerobic conditions in the root zone of plants. Climate change is increasing the frequency of waterlogging events, resulting in considerable crop losses. Plants respond to waterlogging stress by adventitious root growth, aerenchyma formation, energy metabolism, and phytohormone signalling. Genotypes differ in biomass reduction, photosynthesis rate, adventitious roots development, and aerenchyma formation in response to waterlogging. We reviewed the detrimental effects of waterlogging on physiological and genetic mechanisms in four major cereal crops (rice, maize, wheat, and barley). The review covers current knowledge on waterlogging tolerance mechanism, genes, and quantitative trait loci (QTL) associated with waterlogging tolerance-related traits, the conventional and modern breeding methods used in developing waterlogging tolerant germplasm. Lastly, we describe candidate genes controlling waterlogging tolerance identified in model plants Arabidopsis and rice to identify homologous genes in the less waterlogging-tolerant maize, wheat, and barley.
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Affiliation(s)
- Cen Tong
- Western Crop Genetic Alliance, College of Science, Health, Engineering and Education, Murdoch University, 90 South Street, Murdoch, WA 6150, Australia; (C.T.); (C.B.H.); (G.Z.); (X.-Q.Z.); (Y.J.)
- Western Australian State Agricultural Biotechnology Centre, Murdoch University, 90 South Street, Murdoch, WA 6150, Australia
| | - Camilla Beate Hill
- Western Crop Genetic Alliance, College of Science, Health, Engineering and Education, Murdoch University, 90 South Street, Murdoch, WA 6150, Australia; (C.T.); (C.B.H.); (G.Z.); (X.-Q.Z.); (Y.J.)
- Western Australian State Agricultural Biotechnology Centre, Murdoch University, 90 South Street, Murdoch, WA 6150, Australia
| | - Gaofeng Zhou
- Western Crop Genetic Alliance, College of Science, Health, Engineering and Education, Murdoch University, 90 South Street, Murdoch, WA 6150, Australia; (C.T.); (C.B.H.); (G.Z.); (X.-Q.Z.); (Y.J.)
- Western Australian State Agricultural Biotechnology Centre, Murdoch University, 90 South Street, Murdoch, WA 6150, Australia
| | - Xiao-Qi Zhang
- Western Crop Genetic Alliance, College of Science, Health, Engineering and Education, Murdoch University, 90 South Street, Murdoch, WA 6150, Australia; (C.T.); (C.B.H.); (G.Z.); (X.-Q.Z.); (Y.J.)
- Western Australian State Agricultural Biotechnology Centre, Murdoch University, 90 South Street, Murdoch, WA 6150, Australia
| | - Yong Jia
- Western Crop Genetic Alliance, College of Science, Health, Engineering and Education, Murdoch University, 90 South Street, Murdoch, WA 6150, Australia; (C.T.); (C.B.H.); (G.Z.); (X.-Q.Z.); (Y.J.)
- Western Australian State Agricultural Biotechnology Centre, Murdoch University, 90 South Street, Murdoch, WA 6150, Australia
| | - Chengdao Li
- Western Crop Genetic Alliance, College of Science, Health, Engineering and Education, Murdoch University, 90 South Street, Murdoch, WA 6150, Australia; (C.T.); (C.B.H.); (G.Z.); (X.-Q.Z.); (Y.J.)
- Western Australian State Agricultural Biotechnology Centre, Murdoch University, 90 South Street, Murdoch, WA 6150, Australia
- Department of Primary Industries and Regional Development, 3-Baron-Hay Court, South Perth, WA 6151, Australia
- Correspondence: ; Tel.: +61-893-607-519
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21
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Salter WT, Li S, Dracatos PM, Barbour MM. Identification of quantitative trait loci for dynamic and steady-state photosynthetic traits in a barley mapping population. AOB PLANTS 2020; 12:plaa063. [PMID: 33408849 PMCID: PMC7759950 DOI: 10.1093/aobpla/plaa063] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2020] [Accepted: 11/18/2020] [Indexed: 05/29/2023]
Abstract
Enhancing the photosynthetic induction response to fluctuating light has been suggested as a key target for improvement in crop breeding programmes, with the potential to substantially increase whole-canopy carbon assimilation and contribute to crop yield potential. Rubisco activation may be the main physiological process that will allow us to achieve such a goal. In this study, we assessed the phenotype of Rubisco activation rate in a doubled haploid (DH) barley mapping population [131 lines from a Yerong/Franklin (Y/F) cross] after a switch from moderate to saturating light. Rates of Rubisco activation were found to be highly variable across the mapping population, with a median activation rate of 0.1 min-1 in the slowest genotype and 0.74 min-1 in the fastest genotype. A unique quantitative trait locus (QTL) for Rubisco activation rate was identified on chromosome 7H. This is the first report on the identification of a QTL for Rubisco activation rate in planta and the discovery opens the door to marker-assisted breeding to improve whole-canopy photosynthesis of barley. This also suggests that genetic factors other than the previously characterized Rubisco activase (RCA) isoforms on chromosome 4H control Rubisco activity. Further strength is given to this finding as this QTL co-localized with QTLs identified for steady-state photosynthesis and stomatal conductance. Several other distinct QTLs were identified for these steady-state traits, with a common overlapping QTL on chromosome 2H, and distinct QTLs for photosynthesis and stomatal conductance identified on chromosomes 4H and 5H, respectively. Future work should aim to validate these QTLs under field conditions so that they can be used to aid plant breeding efforts.
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Affiliation(s)
- William T Salter
- School of Life and Environmental Sciences, Sydney Institute of Agriculture, The University of Sydney, Brownlow Hill, NSW, Australia
| | - Si Li
- School of Life and Environmental Sciences, Sydney Institute of Agriculture, The University of Sydney, Brownlow Hill, NSW, Australia
| | - Peter M Dracatos
- Plant Breeding Institute, The University of Sydney, Cobbitty, NSW, Australia
| | - Margaret M Barbour
- School of Life and Environmental Sciences, Sydney Institute of Agriculture, The University of Sydney, Brownlow Hill, NSW, Australia
- School of Science, University of Waikato, Hillcrest, Hamilton, New Zealand
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22
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Liu K, Harrison MT, Ibrahim A, Manik SMN, Johnson P, Tian X, Meinke H, Zhou M. Genetic factors increasing barley grain yields under soil waterlogging. Food Energy Secur 2020. [DOI: 10.1002/fes3.238] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Affiliation(s)
- Ke Liu
- Hubei Collaborative Innovation Centre for Grain Industry/College of Agriculture Yangtze University Jingzhou China
- Tasmanian Institute of Agriculture University of Tasmania Launceston TAS Australia
| | - Matthew Tom Harrison
- Tasmanian Institute of Agriculture University of Tasmania Launceston TAS Australia
| | - Ahmed Ibrahim
- Tasmanian Institute of Agriculture University of Tasmania Launceston TAS Australia
| | | | - Peter Johnson
- Tasmanian Institute of Agriculture University of Tasmania Launceston TAS Australia
| | - Xiaohai Tian
- Hubei Collaborative Innovation Centre for Grain Industry/College of Agriculture Yangtze University Jingzhou China
| | - Holger Meinke
- Tasmanian Institute of Agriculture University of Tasmania Launceston TAS Australia
| | - Meixue Zhou
- Hubei Collaborative Innovation Centre for Grain Industry/College of Agriculture Yangtze University Jingzhou China
- Tasmanian Institute of Agriculture University of Tasmania Launceston TAS Australia
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23
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Watt C, Zhou G, McFawn LA, Li C. Fine mapping qGL2H, a major locus controlling grain length in barley (Hordeum vulgare L.). TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2020; 133:2095-2103. [PMID: 32193568 PMCID: PMC7311499 DOI: 10.1007/s00122-020-03579-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Accepted: 03/12/2020] [Indexed: 05/08/2023]
Abstract
A major grain length QTL on chromosome 2H was fine mapped to a 140.9 Kb region containing three genes. Increasing yield is an important target for barley breeding programs. One approach to increase yield is by enhancing individual grain weights through the regulation of grain size. Fine mapping major grain size-related quantitative trait loci is necessary for future marker-assisted selection strategies, yet studies of this nature are limited in barley. In the present study, we utilised a doubled haploid population derived from two Australian malt barley varieties, Vlamingh and Buloke, coupled with extensive genotypic and phenotypic data from three independent environments. A major grain length locus identified on chromosome 2H designated qGL2H was fine mapped to a 140.9 Kb interval. qGL2H was able to account for 25.4% of the phenotypic variation for grain length and 10.2% for grain yield. Underlying qGL2H were three high-confidence predicted genes. One of these genes encodes a MYB transcription factor and represents a promising candidate for further genetic research.
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Affiliation(s)
- Calum Watt
- Western Barley Genetic Alliance, Murdoch University, Murdoch, WA, Australia
- Western Australian State Agricultural Biotechnology Centre, Murdoch University, Murdoch, WA, Australia
| | - Gaofeng Zhou
- Western Barley Genetic Alliance, Murdoch University, Murdoch, WA, Australia
- Western Australian State Agricultural Biotechnology Centre, Murdoch University, Murdoch, WA, Australia
| | - Lee-Anne McFawn
- Western Barley Genetic Alliance, Murdoch University, Murdoch, WA, Australia
- Department of Primary Industry and Regional Development, South Perth, WA, Australia
| | - Chengdao Li
- Western Barley Genetic Alliance, Murdoch University, Murdoch, WA, Australia.
- Western Australian State Agricultural Biotechnology Centre, Murdoch University, Murdoch, WA, Australia.
- Department of Primary Industry and Regional Development, South Perth, WA, Australia.
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24
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Borrego-Benjumea A, Carter A, Tucker JR, Yao Z, Xu W, Badea A. Genome-Wide Analysis of Gene Expression Provides New Insights into Waterlogging Responses in Barley ( Hordeum vulgare L.). PLANTS 2020; 9:plants9020240. [PMID: 32069892 PMCID: PMC7076447 DOI: 10.3390/plants9020240] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Revised: 02/07/2020] [Accepted: 02/10/2020] [Indexed: 12/13/2022]
Abstract
Waterlogging is a major abiotic stress causing oxygen depletion and carbon dioxide accumulation in the rhizosphere. Barley is more susceptible to waterlogging stress than other cereals. To gain a better understanding, the genome-wide gene expression responses in roots of waterlogged barley seedlings of Yerong and Deder2 were analyzed by RNA-Sequencing. A total of 6736, 5482, and 4538 differentially expressed genes (DEGs) were identified in waterlogged roots of Yerong at 72 h and Deder2 at 72 and 120 h, respectively, compared with the non-waterlogged control. Gene Ontology (GO) enrichment analyses showed that the most significant changes in GO terms, resulted from these DEGs observed under waterlogging stress, were related to primary and secondary metabolism, regulation, and oxygen carrier activity. In addition, more than 297 transcription factors, including members of MYB, AP2/EREBP, NAC, WRKY, bHLH, bZIP, and G2-like families, were identified as waterlogging responsive. Tentative important contributors to waterlogging tolerance in Deder2 might be the highest up-regulated DEGs: Trichome birefringence, α/β-Hydrolases, Xylanase inhibitor, MATE efflux, serine carboxypeptidase, and SAUR-like auxin-responsive protein. The study provides insights into the molecular mechanisms underlying the response to waterlogging in barley, which will be of benefit for future studies of molecular responses to waterlogging and will greatly assist barley genetic research and breeding.
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Affiliation(s)
- Ana Borrego-Benjumea
- Brandon Research and Development Centre, Agriculture and Agri-Food Canada, 2701 Grand Valley Road, Brandon, MB R7A 5Y3, Canada; (A.B.-B.); (A.C.); (J.R.T.)
| | - Adam Carter
- Brandon Research and Development Centre, Agriculture and Agri-Food Canada, 2701 Grand Valley Road, Brandon, MB R7A 5Y3, Canada; (A.B.-B.); (A.C.); (J.R.T.)
| | - James R. Tucker
- Brandon Research and Development Centre, Agriculture and Agri-Food Canada, 2701 Grand Valley Road, Brandon, MB R7A 5Y3, Canada; (A.B.-B.); (A.C.); (J.R.T.)
| | - Zhen Yao
- Morden Research and Development Centre, Agriculture and Agri-Food Canada, 101 Route 100, Morden, MB R6M 1Y5, Canada; (Z.Y.); (W.X.)
| | - Wayne Xu
- Morden Research and Development Centre, Agriculture and Agri-Food Canada, 101 Route 100, Morden, MB R6M 1Y5, Canada; (Z.Y.); (W.X.)
| | - Ana Badea
- Brandon Research and Development Centre, Agriculture and Agri-Food Canada, 2701 Grand Valley Road, Brandon, MB R7A 5Y3, Canada; (A.B.-B.); (A.C.); (J.R.T.)
- Correspondence: ; Tel.: +1-204-578-6573
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25
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Gill MB, Zeng F, Shabala L, Zhang G, Yu M, Demidchik V, Shabala S, Zhou M. Identification of QTL Related to ROS Formation under Hypoxia and Their Association with Waterlogging and Salt Tolerance in Barley. Int J Mol Sci 2019; 20:E699. [PMID: 30736310 PMCID: PMC6387252 DOI: 10.3390/ijms20030699] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Revised: 02/01/2019] [Accepted: 02/04/2019] [Indexed: 01/19/2023] Open
Abstract
Waterlogging is a serious environmental problem that limits agricultural production in low-lying rainfed areas around the world. The major constraint that plants face in a waterlogging situation is the reduced oxygen availability. Accordingly, all previous efforts of plant breeders focused on traits providing adequate supply of oxygen to roots under waterlogging conditions, such as enhanced aerenchyma formation or reduced radial oxygen loss. However, reduced oxygen concentration in waterlogged soils also leads to oxygen deficiency in plant tissues, resulting in an excessive accumulation of reactive oxygen species (ROS) in plants. To the best of our knowledge, this trait has never been targeted in breeding programs and thus represents an untapped resource for improving plant performance in waterlogged soils. To identify the quantitative trait loci (QTL) for ROS tolerance in barley, 187 double haploid (DH) lines from a cross between TX9425 and Naso Nijo were screened for superoxide anion (O₂•-) and hydrogen peroxide (H₂O₂)-two major ROS species accumulated under hypoxia stress. We show that quantifying ROS content after 48 h hypoxia could be a fast and reliable approach for the selection of waterlogging tolerant barley genotypes. The same QTL on chromosome 2H was identified for both O₂•- (QSO.TxNn.2H) and H₂O₂ (QHP.TxNn.2H) contents. This QTL was located at the same position as the QTL for the overall waterlogging and salt tolerance reported in previous studies, explaining 23% and 24% of the phenotypic variation for O₂•- and H₂O2 contents, respectively. The analysis showed a causal association between ROS production and both waterlogging and salt stress tolerance. Waterlogging and salinity are two major abiotic factors affecting crop production around the globe and frequently occur together. The markers associated with this QTL could potentially be used in future breeding programs to improve waterlogging and salinity tolerance.
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Affiliation(s)
- Muhammad Bilal Gill
- International Centre for Environmental Membrane Biology, Foshan University, Foshan 528000, China.
- Department of Agronomy, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China.
- Tasmanian Institute of Agriculture, College of Science and Engineering, University of Tasmania, Hobart, Tas 7005, Australia.
| | - Fanrong Zeng
- Department of Agronomy, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China.
| | - Lana Shabala
- Tasmanian Institute of Agriculture, College of Science and Engineering, University of Tasmania, Hobart, Tas 7005, Australia.
| | - Guoping Zhang
- Department of Agronomy, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China.
| | - Min Yu
- International Centre for Environmental Membrane Biology, Foshan University, Foshan 528000, China.
| | - Vadim Demidchik
- International Centre for Environmental Membrane Biology, Foshan University, Foshan 528000, China.
- Department of Plant Cell Biology and Bioengineering, Biological Faculty, Belarusian State University, 222030 Minsk, Belarus.
| | - Sergey Shabala
- International Centre for Environmental Membrane Biology, Foshan University, Foshan 528000, China.
- Tasmanian Institute of Agriculture, College of Science and Engineering, University of Tasmania, Hobart, Tas 7005, Australia.
| | - Meixue Zhou
- Tasmanian Institute of Agriculture, College of Science and Engineering, University of Tasmania, Hobart, Tas 7005, Australia.
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26
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Yamauchi T, Abe F, Tsutsumi N, Nakazono M. Root Cortex Provides a Venue for Gas-Space Formation and Is Essential for Plant Adaptation to Waterlogging. FRONTIERS IN PLANT SCIENCE 2019; 10:259. [PMID: 31024577 PMCID: PMC6465681 DOI: 10.3389/fpls.2019.00259] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Accepted: 02/18/2019] [Indexed: 05/20/2023]
Abstract
Lysigenous aerenchyma, which develops by death and subsequent lysis of the cortical cells in roots, is essential for internal long-distance oxygen transport from shoot base to root tips of plants in waterlogged soil. Although many studies focus on the amounts of aerenchyma in roots, significance of the size of the root cortex in which aerenchyma forms has received less research attention. In the present study, we evaluated the cross-sectional area of each root tissue in adventitious roots of upland crops, wheat (Triticum aestivum) and maize (Zea mays ssp. mays), and the wetland crop, rice (Oryza sativa) under aerated or stagnant deoxygenated conditions; the latter can mimic the changes in gas composition in waterlogged soils. Our analyses revealed that the areas of whole root and cortex of the three species increased under stagnant conditions. In rice roots, cortex to stele ratio (CSR) and aerenchyma to cortex ratio (ACR), which is associated with the areas of gas spaces, were much higher than those in wheat and maize roots, suggesting that these anatomical features are essential for a high capacity for oxygen transport along roots. To test this hypothesis, rates of radial oxygen loss (ROL), which is the diffusive flux of oxygen from within a root to the external medium, from thick and thin adventitious roots of rice were measured using a cylindrical (root-sleeving) oxygen electrode, for plants with shoots in air and roots in an oxygen-free medium. As expected, the rate of ROL from thick roots, which have larger cortex and aerenchyma areas, was higher than that of thin roots. The rate of ROL was highest at the apical part of rice roots, where aerenchyma was hardly detected, but at which cuboidal cell arrangement in the cortex provides tissue porosity. We conclude that high CSR in combination with large root diameter is a feature which promotes oxygen transport from shoot base to root tips of plants. Moreover, we propose that CSR should be a useful quantitative index for the evaluation and improvement of root traits contributing to tolerance of crops to soil waterlogging.
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Affiliation(s)
- Takaki Yamauchi
- Japan Science and Technology Agency, PRESTO, Kawaguchi, Japan
- Graduate School of Agricultural and Life Sciences, University of Tokyo, Tokyo, Japan
- *Correspondence: Takaki Yamauchi,
| | | | - Nobuhiro Tsutsumi
- Graduate School of Agricultural and Life Sciences, University of Tokyo, Tokyo, Japan
| | - Mikio Nakazono
- Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Japan
- UWA School of Agriculture and Environment, The University of Western Australia, Crawley, WA, Australia
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27
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Abstract
A major problem of climate change is the increasing duration and frequency of heavy rainfall events. This leads to soil flooding that negatively affects plant growth, eventually leading to death of plants if the flooding persists for several days. Most crop plants are very sensitive to flooding, and dramatic yield losses occur due to flooding each year. This review summarizes recent progress and approaches to enhance crop resistance to flooding. Most experiments have been done on maize, barley, and soybean. Work on other crops such as wheat and rape has only started. The most promising traits that might enhance crop flooding tolerance are anatomical adaptations such as aerenchyma formation, the formation of a barrier against radial oxygen loss, and the growth of adventitious roots. Metabolic adaptations might be able to improve waterlogging tolerance as well, but more studies are needed in this direction. Reasonable approaches for future studies are quantitative trait locus (QTL) analyses or genome-wide association (GWA) studies in combination with specific tolerance traits that can be easily assessed. The usage of flooding-tolerant relatives or ancestral cultivars of the crop of interest in these experiments might enhance the chances of finding useful tolerance traits to be used in breeding.
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28
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Sundgren TK, Uhlen AK, Lillemo M, Briese C, Wojciechowski T. Rapid seedling establishment and a narrow root stele promotes waterlogging tolerance in spring wheat. JOURNAL OF PLANT PHYSIOLOGY 2018; 227:45-55. [PMID: 29735176 DOI: 10.1016/j.jplph.2018.04.010] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2018] [Revised: 04/10/2018] [Accepted: 04/16/2018] [Indexed: 05/11/2023]
Abstract
Improving the waterlogging tolerance of wheat varieties could alleviate yield constraints caused by excessive rain and poor soil drainage. In this study, we investigated root and shoot growth as well as anatomical traits of six spring wheat genotypes with contrasting waterlogging tolerance properties. Our aim was to identify root traits that differentiate tolerant from sensitive genotypes. Two experiments were conducted using rhizoboxes and photography for data acquisition. In experiment one, root growth of the genotypes was studied during seedling establishment and a subsequent waterlogging treatment, starting at the 3-leaf stage and maintained for seven days. In the second experiment, root and shoot growth of previously waterlogged plants was compared between the genotypes during seven days of recovery. At harvest of experiment two, root segments were sampled to investigate genotype differences of root cross sectional area, root cortex area, stele area and percentage of aerenchyma. The results show that tolerant, in contrast to sensitive genotypes, developed seminal roots faster in the seedling establishment phase and more nodal roots during the waterlogging treatment. NK93602 and Bjarne were the best performing genotypes. Bjarne in particular had a narrower relative stele size of nodal (13.4%) and seminal roots (11.7%) compared to other genotypes (e.g. 16.3% in nodal roots and 13.9% in seminal roots of sensitive Quarna). The results from this study suggests that early vigor is an important trait for waterlogging tolerance in the field. Anatomical root traits, such as a narrow stele and aerenchyma may contribute to improving waterlogging tolerance furthermore.
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Affiliation(s)
- Tove Kristina Sundgren
- Faculty of Biosciences, Department of Plant Sciences, Norwegian University of Life Sciences, Ås, Norway.
| | - Anne Kjersti Uhlen
- Faculty of Biosciences, Department of Plant Sciences, Norwegian University of Life Sciences, Ås, Norway
| | - Morten Lillemo
- Faculty of Biosciences, Department of Plant Sciences, Norwegian University of Life Sciences, Ås, Norway
| | - Christoph Briese
- IBG-2 (Plant Sciences), Forschungszentrum Jülich, Wilhelm-Johnen-Straße, Jülich, Germany
| | - Tobias Wojciechowski
- IBG-2 (Plant Sciences), Forschungszentrum Jülich, Wilhelm-Johnen-Straße, Jülich, Germany
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29
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Luan H, Shen H, Pan Y, Guo B, Lv C, Xu R. Elucidating the hypoxic stress response in barley (Hordeum vulgare L.) during waterlogging: A proteomics approach. Sci Rep 2018; 8:9655. [PMID: 29941955 PMCID: PMC6018542 DOI: 10.1038/s41598-018-27726-1] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2017] [Accepted: 06/08/2018] [Indexed: 12/25/2022] Open
Abstract
Waterlogging is one of the major abiotic stresses that affects barley production and yield quality. Proteomics techniques have been widely utilized to explore the mechanisms involved in the responses to abiotic stress. In this study, two barley genotypes with contrasting responses to waterlogging stress were analyzed with proteomic technology. The waterlogging treatment caused a greater reduction in biomass and photosynthetic performance in the waterlogging-sensitive genotype TF57 than that in the waterlogging-tolerant genotype TF58. Under waterlogging stress, 30, 30, 20 and 20 differentially expressed proteins were identified through tandem mass spectrometry analysis in the leaves, adventitious roots, nodal roots and seminal roots, respectively. Among these proteins, photosynthesis-, metabolism- and energy-related proteins were differentially expressed in the leaves, with oxygen-evolving enhancer protein 1, ATP synthase subunit and heat shock protein 70 being up-regulated in TF58. Pyruvate decarboxylase (PDC), 1-amino cyclopropane 1-carboxylic acid oxidase (ACO), glutamine synthetase (GS), glutathione S-transferases (GST) and beta-1, 3-glucanase in adventitious, nodal and seminal roots were more abundant in TF58 than those in TF57 under waterlogging stress. Ten representative genes were selected for validation by qRT-PCR in different genotypes with known waterlogging tolerance, and the expression levels of three candidate genes (PDC, ACO and GST) increased in the roots of all genotypes in response to the waterlogging stress. These three genes might play a significant role in the adaptation process of barley under waterlogging stress. The current results partially determined the mechanisms of waterlogging tolerance and provided valuable information for the breeding of barley with enhanced tolerance to waterlogging.
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Affiliation(s)
- Haiye Luan
- Jiangsu Key Laboratory of Crop Genetics and Physiology/Co-Innovation Center for Modern Production Technology of Grain Crops, Key Laboratory of Plant Functional Genomics of the Ministry of Education, Barley Research Institution of Yangzhou University, Yangzhou University, Yangzhou, 225009, China
- Institute of Agricultural Science in Jiangsu Coastal Areas, Yancheng, 224002, China
| | - Huiquan Shen
- Institute of Agricultural Science in Jiangsu Coastal Areas, Yancheng, 224002, China
| | - Yuhan Pan
- Jiangsu Key Laboratory of Crop Genetics and Physiology/Co-Innovation Center for Modern Production Technology of Grain Crops, Key Laboratory of Plant Functional Genomics of the Ministry of Education, Barley Research Institution of Yangzhou University, Yangzhou University, Yangzhou, 225009, China
| | - Baojian Guo
- Jiangsu Key Laboratory of Crop Genetics and Physiology/Co-Innovation Center for Modern Production Technology of Grain Crops, Key Laboratory of Plant Functional Genomics of the Ministry of Education, Barley Research Institution of Yangzhou University, Yangzhou University, Yangzhou, 225009, China
| | - Chao Lv
- Jiangsu Key Laboratory of Crop Genetics and Physiology/Co-Innovation Center for Modern Production Technology of Grain Crops, Key Laboratory of Plant Functional Genomics of the Ministry of Education, Barley Research Institution of Yangzhou University, Yangzhou University, Yangzhou, 225009, China
| | - Rugen Xu
- Jiangsu Key Laboratory of Crop Genetics and Physiology/Co-Innovation Center for Modern Production Technology of Grain Crops, Key Laboratory of Plant Functional Genomics of the Ministry of Education, Barley Research Institution of Yangzhou University, Yangzhou University, Yangzhou, 225009, China.
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30
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Cannarozzi G, Weichert A, Schnell M, Ruiz C, Bossard S, Blösch R, Plaza‐Wüthrich S, Chanyalew S, Assefa K, Tadele Z. Waterlogging affects plant morphology and the expression of key genes in tef ( Eragrostis tef). PLANT DIRECT 2018; 2:e00056. [PMID: 31245721 PMCID: PMC6508588 DOI: 10.1002/pld3.56] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Revised: 03/04/2018] [Accepted: 03/05/2018] [Indexed: 05/11/2023]
Abstract
Tef [Eragrostis tef (Zucc.) Trotter], an allotetraploid cereal that is a staple food to over 60 million people in the Horn of Africa, has a high nutritional content and is resistant to many biotic and abiotic stresses such as waterlogging and drought. Three tef genotypes, Alba, Tsedey, and Quncho, were subjected to waterlogging conditions and their growth, physiology, and change in transcript expression were measured with the goal of identifying targets for breeding cultivars with improved waterlogging tolerance. Root and shoot growth and dry weight were observed over 22 days. Stomatal conductance and chlorophyll and carotenoid contents were quantified. Microscopy was used to monitor changes in the stem cross sections. Illumina RNA sequencing was used to obtain the expression profiles of tef under flooding and control conditions and was verified using qPCR. Results indicated differences in growth between the three genotypes. Waterlogged Tsedey plants grew higher and had more root biomass than normally watered Tsedey plants. Quncho and Alba genotypes were more susceptible to the excess moisture stress. The effects of these changes were observed on the plant physiology. Among the three tested tef genotypes, Tsedey formed more aerenchyma than Alba and had accelerated growth under waterlogging. Tsedey and Quncho had constitutive aerenchyma. Genes affecting carbohydrate metabolism, cell growth, response to reactive oxygen species, transport, signaling, and stress responses were found to change under excess moisture stress. In general, these results show the presence of substantial anatomical and physiological differences among tef genotypes when waterlogged during the early growth stage.
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Affiliation(s)
- Gina Cannarozzi
- Institute of Plant SciencesUniversity of BernBernSwitzerland
- Swiss Institute of BioinformaticsLausanneSwitzerland
| | - Annett Weichert
- Institute of Plant SciencesUniversity of BernBernSwitzerland
| | - Mirjam Schnell
- Institute of Plant SciencesUniversity of BernBernSwitzerland
| | - Celia Ruiz
- Institute of Plant SciencesUniversity of BernBernSwitzerland
| | | | - Regula Blösch
- Institute of Plant SciencesUniversity of BernBernSwitzerland
| | - Sonia Plaza‐Wüthrich
- Institute of Plant SciencesUniversity of BernBernSwitzerland
- Present address:
Département des Neurosciences CliniquesCentre Hospitalier Universitaire VaudoisLausanneSwitzerland
| | - Solomon Chanyalew
- Ethiopian Agricultural Research InstituteDebre Zeit Agricultural Research CenterDebre ZeitEthiopia
| | - Kebebew Assefa
- Ethiopian Agricultural Research InstituteDebre Zeit Agricultural Research CenterDebre ZeitEthiopia
| | - Zerihun Tadele
- Institute of Plant SciencesUniversity of BernBernSwitzerland
- Institute of BiotechnologyAddis Ababa UniversityAddis AbabaEthiopia
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Bourgeade P, Bourioug M, Macor S, Alaoui-Sossé L, Alaoui-Sossé B, Aleya L. Potential vulnerability of oak forests to climate change-induced flooding: effects of mild oxygen deficiency on Quercus robur and Quercus petraea seedling physiology. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:5550-5557. [PMID: 29218580 DOI: 10.1007/s11356-017-0893-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Accepted: 11/30/2017] [Indexed: 06/07/2023]
Abstract
Flooding is characterized by saturation of soil pores with water, leading to hypoxic conditions which affect plant root development and metabolism. We investigated the oxygen deficiency tolerance observed in Quercus robur and Quercus petraea and seek to understand whether it can be explained by enhanced efficiency in oxygen use in the roots, as estimated through radial oxygen loss visualization in relation to growth measurements and root apex respiration. The study showed that root growth, under oxygen deficiency conditions, was significantly reduced only in Q. robur seedlings. Root respiration was maintained in Q. robur, whereas it was decreased in Q. petraea. Both species set up a barrier against radial oxygen loss, though measurement of apex oxygen leakage showed greater oxygen efficiency in Q. robur seedlings. This strategy might allow Q. robur to maintain its respiration and thus to survive longer under oxygen deficiency conditions by facilitating the seedling establishment in transient flooded soils.
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Affiliation(s)
- Pascale Bourgeade
- Chrono-Environnement Laboratory, UMR CNRS 6249, Bourgogne Franche-Comté University, F-25030, Besançon, France
| | - Mohamed Bourioug
- Department of Agronomy, National School of Agriculture, Km 10, Route Haj Kaddour, B.P. S/40, 50001, Meknès, Morocco
| | - Sandra Macor
- Chrono-Environnement Laboratory, UMR CNRS 6249, Bourgogne Franche-Comté University, F-25030, Besançon, France
| | - Laurence Alaoui-Sossé
- Chrono-Environnement Laboratory, UMR CNRS 6249, Bourgogne Franche-Comté University, F-25030, Besançon, France
| | - Badr Alaoui-Sossé
- Chrono-Environnement Laboratory, UMR CNRS 6249, Bourgogne Franche-Comté University, F-25030, Besançon, France
| | - Lotfi Aleya
- Chrono-Environnement Laboratory, UMR CNRS 6249, Bourgogne Franche-Comté University, F-25030, Besançon, France.
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Gill MB, Zeng F, Shabala L, Zhang G, Fan Y, Shabala S, Zhou M. Cell-Based Phenotyping Reveals QTL for Membrane Potential Maintenance Associated with Hypoxia and Salinity Stress Tolerance in Barley. FRONTIERS IN PLANT SCIENCE 2017; 8:1941. [PMID: 29201033 PMCID: PMC5696338 DOI: 10.3389/fpls.2017.01941] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2017] [Accepted: 10/27/2017] [Indexed: 05/18/2023]
Abstract
Waterlogging and salinity are two major abiotic stresses that hamper crop production world-wide resulting in multibillion losses. Plant abiotic stress tolerance is conferred by many interrelated mechanisms. Amongst these, the cell's ability to maintain membrane potential (MP) is considered to be amongst the most crucial traits, a positive relationship between the ability of plants to maintain highly negative MP and its tolerance to both salinity and waterlogging stress. However, no attempts have been made to identify quantitative trait loci (QTL) conferring this trait. In this study, the microelectrode MIFE technique was used to measure the plasma membrane potential of epidermal root cells of 150 double haploid (DH) lines of barley (Hordeum vulgare L.) from a cross between a Chinese landrace TX9425 and Japanese malting cultivar Naso Nijo under hypoxic conditions. A major QTL for the MP in the epidermal root cells in hypoxia-exposed plants was identified. This QTL was located on 2H, at a similar position to the QTL for waterlogging and salinity tolerance reported in previous studies. Further analysis confirmed that MP showed a significant contribution to both waterlogging and salinity tolerance. The fact that the QTL for MP was controlled by a single major QTL illustrates the power of the single-cell phenotyping approach and opens prospects for fine mapping this QTL and thus being more effective in marker assisted selection.
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Affiliation(s)
- Muhammad B. Gill
- Department of Agronomy, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, China
- School of Land and Food, University of Tasmania, Hobart, TAS, Australia
| | - Fanrong Zeng
- Department of Agronomy, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, China
| | - Lana Shabala
- School of Land and Food, University of Tasmania, Hobart, TAS, Australia
| | - Guoping Zhang
- Department of Agronomy, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, China
| | - Yun Fan
- School of Land and Food, University of Tasmania, Hobart, TAS, Australia
| | - Sergey Shabala
- School of Land and Food, University of Tasmania, Hobart, TAS, Australia
| | - Meixue Zhou
- School of Land and Food, University of Tasmania, Hobart, TAS, Australia
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Zhang X, Fan Y, Shabala S, Koutoulis A, Shabala L, Johnson P, Hu H, Zhou M. A new major-effect QTL for waterlogging tolerance in wild barley (H. spontaneum). TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2017; 130:1559-1568. [PMID: 28447117 DOI: 10.1007/s00122-017-2910-8] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2016] [Accepted: 04/19/2017] [Indexed: 05/21/2023]
Abstract
We report the first study on the unique allele from wild barley that can improve waterlogging tolerance in cultivated barley with a substantially higher contribution to aerenchyma formation. Waterlogging is one of the major abiotic stresses that dramatically reduce barley crop yield. Direct selection on waterlogging tolerance in the field is less effective due to its viability to environment. The most effective way of selection is to choose traits that make significant contributions to the overall tolerance and are easy to score. Aerenchyma formation under waterlogging stress is one of the most effective mechanisms to provide adequate oxygen supply and overcome stress-induced hypoxia imposed on plants. In this study, a new allele for aerenchyma formation was identified from a wild barley accession TAM407227 on chromosome 4H. Compared to that identified in cultivated barley, this allele not only produced a greater proportion of aerenchyma but made a greater contribution to the overall waterlogging tolerance. The QTL explained 76.8% of phenotypic variance in aerenchyma formation with a LOD value of 51.4. Markers co-segregating with the trait were identified and can be effectively used in marker assisted selection.
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Affiliation(s)
- Xuechen Zhang
- School of Land and Food, University of Tasmania, Private Bag 1375, Prospect, TAS, 7250, Australia
| | - Yun Fan
- School of Land and Food, University of Tasmania, Private Bag 1375, Prospect, TAS, 7250, Australia
| | - Sergey Shabala
- School of Land and Food, University of Tasmania, Private Bag 1375, Prospect, TAS, 7250, Australia
| | - Anthony Koutoulis
- School of Biological Sciences, University of Tasmania, Private Bag 55, Hobart, TAS, 7001, Australia
| | - Lana Shabala
- School of Land and Food, University of Tasmania, Private Bag 1375, Prospect, TAS, 7250, Australia
| | - Peter Johnson
- School of Land and Food, University of Tasmania, Private Bag 1375, Prospect, TAS, 7250, Australia
| | - Hongliang Hu
- School of Land and Food, University of Tasmania, Private Bag 1375, Prospect, TAS, 7250, Australia
| | - Meixue Zhou
- School of Land and Food, University of Tasmania, Private Bag 1375, Prospect, TAS, 7250, Australia.
- Hubei Collaborative Innovation Center for Grain Industry, Yangtze University, Jingzhou, 434025, People's Republic of China.
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Zhang X, Shabala S, Koutoulis A, Shabala L, Zhou M. Meta-analysis of major QTL for abiotic stress tolerance in barley and implications for barley breeding. PLANTA 2017; 245:283-295. [PMID: 27730410 DOI: 10.1007/s00425-016-2605-4] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Accepted: 10/04/2016] [Indexed: 05/24/2023]
Abstract
We projected meta-QTL (MQTL) for drought, salinity, and waterlogging tolerance to the physical map of barley through meta-analysis. The positions of these MQTL were refined and candidate genes were identified. Drought, salinity and waterlogging are three major abiotic stresses limiting barley yield worldwide. Breeding for abiotic stress-tolerant crops has drawn increased attention, and a large number of quantitative trait loci (QTL) for drought, salinity, and waterlogging tolerance in barley have been detected. However, very few QTL have been successfully used in marker-assisted selection (MAS) in breeding. In this study, we summarized 632 QTL for drought, salinity and waterlogging tolerance in barley. Among all these QTL, only 195 major QTL were used to conduct meta-analysis to refine QTL positions for MAS. Meta-analysis was used to map the summarized major QTL for drought, salinity, and waterlogging tolerance from different mapping populations on the barley physical map. The positions of identified meta-QTL (MQTL) were used to search for candidate genes for drought, salinity, and waterlogging tolerance in barley. Both MQTL3H.4 and MQTL6H.2 control drought tolerance in barley. Fine-mapped QTL for salinity tolerance, HvNax4 and HvNax3, were validated on MQTL1H.4 and MQTL7H.2, respectively. MQTL2H.1 and MQTL5H.3 were also the target regions for improving salinity tolerance in barley. MQTL4H.4 is the main region controlling waterlogging tolerance in barley with fine-mapped QTL for aerenchyma formation under waterlogging conditions. Detected and refined MQTL and candidate genes are crucial for future successful MAS in barley breeding.
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Affiliation(s)
- Xuechen Zhang
- School of Land and Food, University of Tasmania, P.O. Box 46, Kings Meadows, Tasmania, TAS 7249, Australia
| | - Sergey Shabala
- School of Land and Food, University of Tasmania, P.O. Box 46, Kings Meadows, Tasmania, TAS 7249, Australia
| | - Anthony Koutoulis
- School of Biological Sciences, University of Tasmania, Private Bag 55, Hobart, TAS 7001, Australia
| | - Lana Shabala
- School of Land and Food, University of Tasmania, P.O. Box 46, Kings Meadows, Tasmania, TAS 7249, Australia
| | - Meixue Zhou
- School of Land and Food, University of Tasmania, P.O. Box 46, Kings Meadows, Tasmania, TAS 7249, Australia.
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Su J, Zhang F, Li P, Guan Z, Fang W, Chen F. Genetic variation and association mapping of waterlogging tolerance in chrysanthemum. PLANTA 2016; 244:1241-1252. [PMID: 27522648 DOI: 10.1007/s00425-016-2583-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2016] [Accepted: 08/08/2016] [Indexed: 05/21/2023]
Abstract
Forty-five molecular markers were detected significantly associated with chrysanthemum' waterlogging tolerance, and four favorable parental lines were identified as potential donors for improving waterlogging tolerance in chrysanthemum. The productivity of chrysanthemum is downgraded by waterlogging soils, which has driven a search for germplasm showing an enhanced level of waterlogging tolerance (WT). As yet little is known regarding the mode of inheritance of WT in chrysanthemum. The study set out to characterize the extent of genetic variation for WT represented in a collection of one hundred chrysanthemum accessions by testing them under both greenhouse and field conditions. A membership function value of waterlogging (MFVW), which integrated a wilting index, a chlorosis score and the proportion of dead leaf in waterlogged plants, was used as a measure of WT. The variation for MFVW among plants grown in the greenhouse (two experiments) was generally higher than that generated in field-grown (one experiment) plants. The MFVW broad sense heritability was 0.82, and the phenotypic coefficient of variation (31.8 %) was larger than the genetic one (28.8 %). Association mapping (AM) identified 45 markers related to WT: 25 by applying the general linear model (GLM) + principal component (PC) model, 16 by applying the mixed linear model (MLM), 31 by applying the MLM + Q matrix model and 12 by applying the MLM + PC model. Of the associated markers, eight and two were predictive in two and three experiments within all models, respectively; the proportion of the phenotypic variance explained by the eight associations ranged from 6.3 to 16.4 %. On the basis of their harboring all four of the leading markers E2M16-2, SSR150-6, E19M16-1 and E10M10-12, the varieties 'Nannong Xuefeng', 'Qx097', 'Nannong Xunzhang' and 'Finch' were identified as potential donors for future improvement of WT in chrysanthemum.
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Affiliation(s)
- Jiangshuo Su
- College of Horticulture, Nanjing Agricultural University, Weigang No. 1, Nanjing, 210095, Jiangsu, People's Republic of China
| | - Fei Zhang
- College of Horticulture, Nanjing Agricultural University, Weigang No. 1, Nanjing, 210095, Jiangsu, People's Republic of China
| | - Pirui Li
- College of Horticulture, Nanjing Agricultural University, Weigang No. 1, Nanjing, 210095, Jiangsu, People's Republic of China
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, 210014, Jiangsu, People's Republic of China
| | - Zhiyong Guan
- College of Horticulture, Nanjing Agricultural University, Weigang No. 1, Nanjing, 210095, Jiangsu, People's Republic of China
| | - Weimin Fang
- College of Horticulture, Nanjing Agricultural University, Weigang No. 1, Nanjing, 210095, Jiangsu, People's Republic of China
| | - Fadi Chen
- College of Horticulture, Nanjing Agricultural University, Weigang No. 1, Nanjing, 210095, Jiangsu, People's Republic of China.
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