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Plotnikova LY, Knaub VV. Exploitation of the genetic potential of Thinopyrum and Agropyron genera to protect wheat from diseases and environmental stresses. Vavilovskii Zhurnal Genet Selektsii 2024; 28:536-553. [PMID: 39280845 PMCID: PMC11393651 DOI: 10.18699/vjgb-24-60] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Revised: 03/22/2024] [Accepted: 03/26/2024] [Indexed: 09/18/2024] Open
Abstract
Common wheat is one of the most important food crops in the world. Grain harvests can be increased by reducing losses from diseases and environmental stresses. The tertiary gene pool, including Thinopyrum spp., is a valuable resource for increasing genetic diversity and wheat resistance to fungal diseases and abiotic stresses. Distant hybridization between wheat and Thinopyrum spp. began in the 1920s in Russia, and later continued in different countries. The main results were obtained using the species Th. ponticum and Th. intermedium. Additionally, introgression material was created based on Th. elongatum, Th. bessarabicum, Th. junceiforme, Agropyron cristatum. The results of introgression for resistance to diseases (leaf, stem, and stripe rusts; powdery mildew; Fusarium head blight; and Septoria blotch) and abiotic stresses (drought, extreme temperatures, and salinity) to wheat was reviewed. Approaches to improving the agronomic properties of introgression breeding material (the use of irradiation, ph-mutants and compensating Robertsonian translocations) were described. The experience of long-term use in the world of a number of genes from the tertiary gene pool in protecting wheat from leaf and stem rust was observed. Th. ponticum is a nonhost for Puccinia triticina (Ptr) and P. graminis f. sp. tritici (Pgt) and suppresses the development of rust fungi on the plant surface. Wheat samples with the tall wheatgrass genes Lr19, Lr38, Sr24, Sr25 and Sr26 showed defence mechanisms similar to nonhosts resistance. Their influence led to disruption of the development of surface infection structures and fungal death when trying to penetrate the stomata (prehaustorial resistance or stomatal immunity). Obviously, a change in the chemical properties of fungal surface structures of races virulent to Lr19, Lr24, Sr24, Sr25, and Sr26 leads to a decrease in their adaptability to the environment. This possibly determined the durable resistance of cultivars to leaf and stem rusts in different regions. Alien genes with a similar effect are of interest for breeding cultivars with durable resistance to rust diseases and engineering crops with the help of molecular technologies.
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Affiliation(s)
- L Ya Plotnikova
- Omsk State Agrarian University named after P.A. Stolypin, Omsk, Russia
| | - V V Knaub
- Omsk State Agrarian University named after P.A. Stolypin, Omsk, Russia
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Boehm J, Cai X. Enrichment and Diversification of the Wheat Genome via Alien Introgression. PLANTS (BASEL, SWITZERLAND) 2024; 13:339. [PMID: 38337872 PMCID: PMC10857235 DOI: 10.3390/plants13030339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 01/08/2024] [Accepted: 01/19/2024] [Indexed: 02/12/2024]
Abstract
Wheat, including durum and common wheat, respectively, is an allopolyploid with two or three homoeologous subgenomes originating from diploid wild ancestral species. The wheat genome's polyploid origin consisting of just three diploid ancestors has constrained its genetic variation, which has bottlenecked improvement. However, wheat has a large number of relatives, including cultivated crop species (e.g., barley and rye), wild grass species, and ancestral species. Moreover, each ancestor and relative has many other related subspecies that have evolved to inhabit specific geographic areas. Cumulatively, they represent an invaluable source of genetic diversity and variation available to enrich and diversify the wheat genome. The ancestral species share one or more homologous genomes with wheat, which can be utilized in breeding efforts through typical meiotic homologous recombination. Additionally, genome introgressions of distant relatives can be moved into wheat using chromosome engineering-based approaches that feature induced meiotic homoeologous recombination. Recent advances in genomics have dramatically improved the efficacy and throughput of chromosome engineering for alien introgressions, which has served to boost the genetic potential of the wheat genome in breeding efforts. Here, we report research strategies and progress made using alien introgressions toward the enrichment and diversification of the wheat genome in the genomics era.
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Affiliation(s)
- Jeffrey Boehm
- USDA-ARS, Wheat, Sorghum & Forage Research Unit, Lincoln, NE 68583, USA;
- Department of Agronomy and Horticulture, University of Nebraska, Lincoln, NE 68583, USA
| | - Xiwen Cai
- USDA-ARS, Wheat, Sorghum & Forage Research Unit, Lincoln, NE 68583, USA;
- Department of Agronomy and Horticulture, University of Nebraska, Lincoln, NE 68583, USA
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Qi F, Liang S, Xing P, Bao Y, Wang RRC, Li X. Genome Analysis of Thinopyrum intermedium and Its Potential Progenitor Species Using Oligo-FISH. PLANTS (BASEL, SWITZERLAND) 2023; 12:3705. [PMID: 37960061 PMCID: PMC10650893 DOI: 10.3390/plants12213705] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 10/13/2023] [Accepted: 10/20/2023] [Indexed: 11/15/2023]
Abstract
The genome composition of intermediate wheatgrass (IWG) is complex and continues to be a subject of investigation. In this study, molecular cytogenetics were used to investigate the karyotype composition of Th. intermedium and its relative diploid species. St2-80 developed from Pseudowroegneria strigose and pDb12H developed from Dasypyrum breviaristatum were used as probes in fluorescence in situ hybridization (FISH) to classify the chromosomes of Th. intermedium into three groups, expressed as JvsJvsJrJrStSt. A combined multiplex oligonucleotide probe, including pSc119.2-1, (GAA)10, AFA-3, AFA-4, pAs1-1, Pas1-3, pAs1-4, and pAs1-6, was used to establish the FISH karyotype of ten accessions of Th. intermedium. Variability among and within the studied accessions of intermediate wheatgrass was observed in their FISH patterns. Results of this study led to the conclusions that Jvs had largely been contributed from Da. breviaristatum, but not the present-day Da. villosum; IWG had only one J genome, Jr, which was related to either Th. elongatum or Th. bessarabicum; and St was contributed from the genus Pseudoroegneria by hybridization with Th. junceiforme or Th. sartorii.
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Affiliation(s)
- Fei Qi
- State Key Laboratory of Crop Biology, Shandong Agricultural University, Tai’an 271018, China; (F.Q.); (P.X.); (Y.B.)
| | - Shuang Liang
- Agronomy College, Shandong Agricultural University, Tai’an 271018, China
| | - Piyi Xing
- State Key Laboratory of Crop Biology, Shandong Agricultural University, Tai’an 271018, China; (F.Q.); (P.X.); (Y.B.)
- Agronomy College, Shandong Agricultural University, Tai’an 271018, China
| | - Yinguang Bao
- State Key Laboratory of Crop Biology, Shandong Agricultural University, Tai’an 271018, China; (F.Q.); (P.X.); (Y.B.)
- Agronomy College, Shandong Agricultural University, Tai’an 271018, China
| | - Richard R.-C. Wang
- USDA-ARS Forage & Range Research Laboratory (FRRL), Logan, UT 84322-6300, USA
| | - Xingfeng Li
- State Key Laboratory of Crop Biology, Shandong Agricultural University, Tai’an 271018, China; (F.Q.); (P.X.); (Y.B.)
- Agronomy College, Shandong Agricultural University, Tai’an 271018, China
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Guo X, Shi Q, Liu Y, Su H, Zhang J, Wang M, Wang C, Wang J, Zhang K, Fu S, Hu X, Jing D, Wang Z, Li J, Zhang P, Liu C, Han F. Systemic development of wheat-Thinopyrum elongatum translocation lines and their deployment in wheat breeding for Fusarium head blight resistance. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2023; 114:1475-1489. [PMID: 36919201 DOI: 10.1111/tpj.16190] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Revised: 02/09/2023] [Accepted: 03/07/2023] [Indexed: 06/17/2023]
Abstract
Fusarium head blight (FHB), mainly caused by Fusarium graminearum, is one of the most destructive diseases of wheat (Triticum aestivum) around the world. FHB causes significant yield losses and reduces grain quality. The lack of resistance resources is a major bottleneck for wheat FHB resistance breeding. As a wheat relative, Thinopyrum elongatum contains many genes that can be used for wheat improvement. Although the novel gene Fhb-7EL was mapped on chromosome 7EL of Th. elongatum, successful transfer of the FHB resistance gene into commercial wheat varieties has not been reported. In this study, we developed 836 wheat-Th. elongatum translocation lines of various types by irradiating the pollen of the wheat-Th. elongatum addition line CS-7EL at the flowering stage, among which 81 were identified as resistant to FHB. By backcrossing the FHB-resistant lines with the main cultivar Jimai 22, three wheat-Th. elongatum translocation lines, Zhongke 1878, Zhongke 166, and Zhongke 545, were successfully applied in wheat breeding without yield penalty. Combining karyotype and phenotype analyses, we mapped the Fhb-7EL gene to the distal end of chromosome 7EL. Five molecular markers linked with the FHB resistance interval were developed, which facilitates molecular marker-assisted breeding. Altogether, we successfully applied alien chromatin with FHB resistance from Th. elongatum in wheat breeding without yield penalty. These newly developed FHB-resistant wheat-Th. elongatum translocation lines, Zhongke 1878, Zhongke 166, and Zhongke 545, can be used as novel resistance resources for wheat breeding.
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Affiliation(s)
- Xianrui Guo
- State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Innovation Academy for Seed Design, Chinese Academy of Sciences, Beijing, China
- Laboratory of Plant Chromosome Biology and Genomic Breeding, School of Life Sciences, Linyi University, Linyi, China
| | - Qinghua Shi
- State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Innovation Academy for Seed Design, Chinese Academy of Sciences, Beijing, China
| | - Yang Liu
- State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Innovation Academy for Seed Design, Chinese Academy of Sciences, Beijing, China
| | - Handong Su
- State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Innovation Academy for Seed Design, Chinese Academy of Sciences, Beijing, China
| | - Jing Zhang
- State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Innovation Academy for Seed Design, Chinese Academy of Sciences, Beijing, China
| | - Mian Wang
- State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Innovation Academy for Seed Design, Chinese Academy of Sciences, Beijing, China
| | - Chunhui Wang
- State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Innovation Academy for Seed Design, Chinese Academy of Sciences, Beijing, China
| | - Jing Wang
- State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Innovation Academy for Seed Design, Chinese Academy of Sciences, Beijing, China
| | - Kaibiao Zhang
- State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Innovation Academy for Seed Design, Chinese Academy of Sciences, Beijing, China
| | - Shulan Fu
- State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Innovation Academy for Seed Design, Chinese Academy of Sciences, Beijing, China
| | - Xiaojun Hu
- Laboratory of Plant Chromosome Biology and Genomic Breeding, School of Life Sciences, Linyi University, Linyi, China
| | - Donglin Jing
- Xingtai Academy of Agricultural Sciences, Xingtai, China
| | - Zhen Wang
- Nanyang Academy of Agricultural Sciences, Nanyang, China
| | - Jinbang Li
- Nanyang Academy of Agricultural Sciences, Nanyang, China
| | - Pingzhi Zhang
- Institute of Crop Sciences, Anhui Academy of Agricultural Sciences, Hefei, China
| | - Cheng Liu
- Crop Research Institute, Shandong Academy of Agricultural Sciences, Jinan, China
| | - Fangpu Han
- State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Innovation Academy for Seed Design, Chinese Academy of Sciences, Beijing, China
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Ma P, He H, Wang Y, Xu Y, Zhang D, Liu C. Editorial: Inheritance and Improvement of Disease Resistance or Stress Tolerance for Triticeae Crops. Front Genet 2022; 13:877926. [PMID: 35356422 PMCID: PMC8960060 DOI: 10.3389/fgene.2022.877926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Accepted: 02/22/2022] [Indexed: 11/13/2022] Open
Affiliation(s)
- Pengtao Ma
- School of Life Sciences, Yantai University, Yantai, China
| | - Huagang He
- School of Life Sciences, Jiangsu University, Zhenjiang, China
| | - Yi Wang
- Triticeae Research Institute, Sichuan Agricultural University, Chengdu, China
| | - Yunfeng Xu
- Department of Agronomy, Kansas State University, Manhattan, KS, United States
| | - Dale Zhang
- State Key Laboratory of Crop Stress Adaptation and Improvement, College of Agriculture, Henan University, Kaifeng, China
| | - Cheng Liu
- Crop Research Institute, Shandong Academy of Agriculture Sciences, Jinan, China
- *Correspondence: Cheng Liu,
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Li W, Challa GS, Gupta A, Gu L, Wu Y, Li W. Physiological and Transcriptomic Characterization of Sea-Wheatgrass-Derived Waterlogging Tolerance in Wheat. PLANTS (BASEL, SWITZERLAND) 2021; 11:plants11010108. [PMID: 35009111 PMCID: PMC8747256 DOI: 10.3390/plants11010108] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2021] [Revised: 12/24/2021] [Accepted: 12/26/2021] [Indexed: 05/31/2023]
Abstract
Waterlogging, causing hypoxia stress and nitrogen depletion in the rhizosphere, has been an increasing threat to wheat production. We developed a wheat-sea wheatgrass (SWG) amphiploid showing superior tolerance to waterlogging and low nitrogen. Validated in deoxygenated agar medium for three weeks, hypoxia stress reduced the dry matter of the wheat parent by 40% but had little effect on the growth of the amphiploid. To understand the underlying mechanisms, we comparatively analyzed the wheat-SWG amphiploid and its wheat parent grown in aerated and hypoxic solutions for physiological traits and root transcriptomes. Compared with its wheat parent, the amphiploid showed less magnitude in forming root porosity and barrier to radial oxygen loss, two important mechanisms for internal O2 movement to the apex, and downregulation of genes for ethylene, lignin, and reactive oxygen species. In another aspect, however, hypoxia stress upregulated the nitrate assimilation/reduction pathway in amphiploid and induced accumulation of nitric oxide, a byproduct of nitrate reduction, in its root tips, and the amphiploid maintained much higher metabolic activity in its root system compared with its wheat parent. Taken together, our research suggested that enhanced nitrate assimilation and reduction and accumulation of nitric oxide play important roles in the SWG-derived waterlogging tolerance.
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Gupta A, Hua L, Lin G, Molnár I, Doležel J, Liu S, Li W. Multiple origins of Indian dwarf wheat by mutations targeting the TREE domain of a GSK3-like kinase for drought tolerance, phosphate uptake, and grain quality. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2021; 134:633-645. [PMID: 33164159 DOI: 10.1007/s00122-020-03719-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Accepted: 10/27/2020] [Indexed: 05/28/2023]
Abstract
Multiple origins of Indian dwarf wheat were due to two mutations targeting the same TREE domain of a GSK3-like kinase, and these mutations confer to enhanced drought tolerance and increased phosphate and nitrogen accumulation for adaptation to the dry climate of Indian and Pakistan. Indian dwarf wheat, featured by the short stature, erect leaves, dense spikes, and small, spherical grains, was a staple crop in India and Pakistan from the Bronze Age until the early 1900s. These morphological features are controlled by a single locus Sphaerococcum 1 (S1), but the genetic identity of the locus and molecular mechanisms underlying the selection of this wheat type are unknown. In this study, we showed that the origin of Indian dwarf wheat was due to two independent missense mutations targeting the conserved TREE domain of a GSK3-like kinase, which is homologous to the Arabidopsis BIN2 protein, a negative regulator in brassinosteroid signaling. The S1 protein is involved in brassinosteroid signaling by physical interaction with the wheat BES1/BZR1 proteins. The dwarf alleles are insensitive to brassinosteroid, upregulates brassinosteroid biosynthetic genes, significantly enhanced drought tolerance, facilitated phosphate accumulation, and increased high molecular weight glutenins. It is the enhanced drought tolerance and accumulation of nitrogen and phosphate that contributed to the adaptation of such a small-grain form of wheat to the dry climate of India and Pakistan. Thus, our research not only identified the genetic events underlying the origin of the Indian dwarf wheat, but also revealed the function of brassinosteroid in the regulation of drought tolerance, phosphate homeostasis, and grain quality.
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Affiliation(s)
- Ajay Gupta
- 252 McFadden Biostress Laboratory, Department of Biology and Microbiology, South Dakota State University, Brookings, SD, 57007, USA
| | - Lei Hua
- 252 McFadden Biostress Laboratory, Department of Biology and Microbiology, South Dakota State University, Brookings, SD, 57007, USA
| | - Guifang Lin
- Plant Pathology Department, Kansas State University, Manhattan, KS, 66502, USA
| | - Istváan Molnár
- Institute of Experimental Botany of the Czech Academy of Sciences, 77900, Olomouc, Czech Republic
| | - Jaroslav Doležel
- Institute of Experimental Botany of the Czech Academy of Sciences, 77900, Olomouc, Czech Republic
| | - Sanzhen Liu
- Plant Pathology Department, Kansas State University, Manhattan, KS, 66502, USA
| | - Wanlong Li
- 252 McFadden Biostress Laboratory, Department of Biology and Microbiology, South Dakota State University, Brookings, SD, 57007, USA.
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