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Wang X, Han R, Chen Z, Li J, Zhu T, Guo J, Xu W, Zi Y, Li F, Zhai S, Li H, Liu J, Liu A, Cheng D, Song J, Jia J, Ma P, Liu C. Identification and Evaluation of Wheat- Aegilops bicornis Lines with Resistance to Powdery Mildew and Stripe Rust. PLANT DISEASE 2022; 106:864-871. [PMID: 34645309 DOI: 10.1094/pdis-05-21-0982-re] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Wheat pathogens, especially those causing powdery mildew and stripe rust, seriously threaten yield worldwide. Utilizing newly identified disease resistance genes from wheat relatives is an effective strategy to minimize disease damage. In this study, chromosome-specific molecular markers for the 3Sb and 7Sb chromosomes of Aegilops bicornis were developed using PCR-based landmark unique gene primers for screening wheat-A. bicornis progenies. Fluorescence in situ hybridization (FISH) was performed to further identify wheat-A. bicornis progenies using oligonucleotides probes Oligo-pSc119.2-1, Oligo-pTa535-1, and Oligo-(GAA)8. After establishing A. bicornis 3Sb and 7Sb chromosome-specific FISH markers, Holdfast (common wheat)-A. bicornis 3Sb addition, 7Sb addition, 3Sb(3A) substitution, 3Sb(3B) substitution, 3Sb(3D) substitution, 7Sb(7A) substitution, and 7Sb(7B) substitution lines were identified by the molecular and cytological markers. Stripe rust and powdery mildew resistance, along with agronomic traits, were investigated to evaluate the breeding potential of these lines. Holdfast and Holdfast-A. bicornis progenies were all highly resistant to stripe rust, indicating that the stripe rust resistance might derive from Holdfast. However, Holdfast-A. bicornis 3Sb addition, 3Sb(3A) substitution, 3Sb(3B) substitution, and 3Sb(3D) substitution lines showed high resistance to powdery mildew while Holdfast was highly susceptible, indicating that chromosome 3Sb of A. bicornis carries previously unknown powdery mildew resistance gene(s). Additionally, the transfer of the 3Sb chromosome from A. bicornis to wheat significantly increased tiller number, but chromosome 7Sb has a negative effect on agronomic traits. Therefore, wheat germplasm containing A. bicornis chromosome 3Sb has potential to contribute to improving powdery mildew resistance and tiller number during wheat breeding.
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Affiliation(s)
- Xiaolu Wang
- Key Laboratory of Wheat Biology and Genetic Improvement in the North Yellow and Huai River Valley of Ministry of Agriculture, Crop Research Institute, Shandong Academy of Agricultural Sciences, Jinan, Shandong 250100, China
| | - Ran Han
- Key Laboratory of Wheat Biology and Genetic Improvement in the North Yellow and Huai River Valley of Ministry of Agriculture, Crop Research Institute, Shandong Academy of Agricultural Sciences, Jinan, Shandong 250100, China
| | - Zhiwei Chen
- College of Agricultural, Shanxi Agricultural University, Taigu, Shanxi 030801, China
| | - Jianbo Li
- Key Laboratory of Wheat Biology and Genetic Improvement in the North Yellow and Huai River Valley of Ministry of Agriculture, Crop Research Institute, Shandong Academy of Agricultural Sciences, Jinan, Shandong 250100, China
| | - Tong Zhu
- College of Life Science, Yantai University, Yantai, Shandong 264005, China
| | - Jun Guo
- Key Laboratory of Wheat Biology and Genetic Improvement in the North Yellow and Huai River Valley of Ministry of Agriculture, Crop Research Institute, Shandong Academy of Agricultural Sciences, Jinan, Shandong 250100, China
| | - Wenjing Xu
- Key Laboratory of Wheat Biology and Genetic Improvement in the North Yellow and Huai River Valley of Ministry of Agriculture, Crop Research Institute, Shandong Academy of Agricultural Sciences, Jinan, Shandong 250100, China
| | - Yan Zi
- Key Laboratory of Wheat Biology and Genetic Improvement in the North Yellow and Huai River Valley of Ministry of Agriculture, Crop Research Institute, Shandong Academy of Agricultural Sciences, Jinan, Shandong 250100, China
| | - Faji Li
- Key Laboratory of Wheat Biology and Genetic Improvement in the North Yellow and Huai River Valley of Ministry of Agriculture, Crop Research Institute, Shandong Academy of Agricultural Sciences, Jinan, Shandong 250100, China
| | - Shengnan Zhai
- Key Laboratory of Wheat Biology and Genetic Improvement in the North Yellow and Huai River Valley of Ministry of Agriculture, Crop Research Institute, Shandong Academy of Agricultural Sciences, Jinan, Shandong 250100, China
| | - Haosheng Li
- Key Laboratory of Wheat Biology and Genetic Improvement in the North Yellow and Huai River Valley of Ministry of Agriculture, Crop Research Institute, Shandong Academy of Agricultural Sciences, Jinan, Shandong 250100, China
| | - Jianjun Liu
- Key Laboratory of Wheat Biology and Genetic Improvement in the North Yellow and Huai River Valley of Ministry of Agriculture, Crop Research Institute, Shandong Academy of Agricultural Sciences, Jinan, Shandong 250100, China
| | - Aifeng Liu
- Key Laboratory of Wheat Biology and Genetic Improvement in the North Yellow and Huai River Valley of Ministry of Agriculture, Crop Research Institute, Shandong Academy of Agricultural Sciences, Jinan, Shandong 250100, China
| | - Dungong Cheng
- Key Laboratory of Wheat Biology and Genetic Improvement in the North Yellow and Huai River Valley of Ministry of Agriculture, Crop Research Institute, Shandong Academy of Agricultural Sciences, Jinan, Shandong 250100, China
| | - Jianmin Song
- Key Laboratory of Wheat Biology and Genetic Improvement in the North Yellow and Huai River Valley of Ministry of Agriculture, Crop Research Institute, Shandong Academy of Agricultural Sciences, Jinan, Shandong 250100, China
| | - Juqing Jia
- College of Agricultural, Shanxi Agricultural University, Taigu, Shanxi 030801, China
| | - Pengtao Ma
- College of Life Science, Yantai University, Yantai, Shandong 264005, China
| | - Cheng Liu
- Key Laboratory of Wheat Biology and Genetic Improvement in the North Yellow and Huai River Valley of Ministry of Agriculture, Crop Research Institute, Shandong Academy of Agricultural Sciences, Jinan, Shandong 250100, China
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Zhang Y, Song Q, Zhang L, Li Z, Wang C, Zhang G. Comparative Proteomic Analysis of Developmental Changes in P-Type Cytoplasmic Male Sterile and Maintainer Anthers in Wheat. Int J Mol Sci 2021; 22:ijms22042012. [PMID: 33670552 PMCID: PMC7922732 DOI: 10.3390/ijms22042012] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2021] [Revised: 02/10/2021] [Accepted: 02/16/2021] [Indexed: 11/16/2022] Open
Abstract
Cytoplasmic male sterility (CMS) plays an important role in the application of heterosis in wheat (Triticum aestivum L.). However, the molecular mechanism underlying CMS remains unknown. This study provides a comprehensive morphological and proteomic analysis of the anthers of a P-type CMS wheat line (P) and its maintainer line, Yanshi 9 hao (Y). Cytological observations indicated that the P-type CMS line shows binucleate microspore abortion. In this line, the tapetum degraded early, leading to anther cuticle defects, which could not provide the nutrition needed for microspore development in a timely manner, thus preventing the development of the microspore to the normal binucleate stage. Proteomic analysis revealed novel proteins involved in P-type CMS. Up to 2576 differentially expressed proteins (DEPs) were quantified in all anthers, and these proteins were significantly enriched in oxidative phosphorylation, glycolysis/gluconeogenesis, citrate cycle (TCA cycle), starch and sucrose metabolism, phenylpropanoid biosynthesis, and pyruvate metabolism pathways. These proteins may comprise a network that regulates male sterility in wheat. Based on the function analysis of DEPs involved in the complex network, we concluded that the P-type CMS line may be due to cellular dysfunction caused by disturbed carbohydrate metabolism, inadequate energy supply, and disturbed protein synthesis. These results provide insights into the molecular mechanism underlying male sterility and serve as a valuable resource for researchers in plant biology, in general, and plant sexual reproduction, in particular.
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Affiliation(s)
- Yamin Zhang
- National Yangling Agricultural Biotechnology & Breeding Center, Yangling Branch of State Wheat Improvement Centre, College of Agronomy, Northwest A&F University, Yangling 712100, China
| | - Qilu Song
- National Yangling Agricultural Biotechnology & Breeding Center, Yangling Branch of State Wheat Improvement Centre, College of Agronomy, Northwest A&F University, Yangling 712100, China
| | - Lili Zhang
- National Yangling Agricultural Biotechnology & Breeding Center, Yangling Branch of State Wheat Improvement Centre, College of Agronomy, Northwest A&F University, Yangling 712100, China
| | - Zheng Li
- National Yangling Agricultural Biotechnology & Breeding Center, Yangling Branch of State Wheat Improvement Centre, College of Agronomy, Northwest A&F University, Yangling 712100, China
| | - Chengshe Wang
- National Yangling Agricultural Biotechnology & Breeding Center, Yangling Branch of State Wheat Improvement Centre, College of Agronomy, Northwest A&F University, Yangling 712100, China
| | - Gaisheng Zhang
- National Yangling Agricultural Biotechnology & Breeding Center, Yangling Branch of State Wheat Improvement Centre, College of Agronomy, Northwest A&F University, Yangling 712100, China
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Kang L, Dai S, Song Z, Xiang Q, Zuo Y, Bao T, Chen G, Wei Y, Zheng Y, Liu G, Li J, Yan Z. Production and characterization of a disomic 1M/1D Triticum aestivum- Aegilops comosa substitution line. MOLECULAR BREEDING : NEW STRATEGIES IN PLANT IMPROVEMENT 2021; 41:16. [PMID: 37309475 PMCID: PMC10236073 DOI: 10.1007/s11032-021-01207-2] [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: 12/06/2019] [Accepted: 01/25/2021] [Indexed: 06/14/2023]
Abstract
PI 554419, formerly designated as Ae. uniaristata, showed significant difference with other Ae. uniaristata and Ae. comosa accessions in morphological traits at the seedling stage and its leaf color, length, and width behaved as an intermediate type. In this study, we reclassified PI 554419 as Ae. comosa subsp. comosa by comparing the fluorescence in situ hybridization (FISH) signals and the patterns of PCR-based landmark unique gene (PLUG) markers and conserved orthologous set (COS) markers of PI 554419 with other Ae. uniaristata and Ae. comosa accessions as well as the taxonomic character of spike morphology. A disomic 1M/1D substitution line NB 4-8-5-9 derived from PI 554419 was identified from a distant hybridization of Ae. comosa with common wheat (STM 10/CSph1b//CM 39///13 P2-6) by the molecular cytological method. Furthermore, the agronomic and seed morphological traits, as well as the flour processing quality properties of NB 4-8-5-9, were compared with those of its three common wheat parents in two different locations during the 2017-2018 growing seasons. The agronomical traits of NB 4-8-5-9 were similar to or even better than its parents. The seed size-related traits of NB 4-8-5-9 were better than those of all three parents, and the 1000-grain weight and grain width were close to those of Chuanmai 39 (CM 39) and 13 P2-6 and larger than those of CSph1b. The processing quality properties of NB 4-8-5-9 were more similar to those of 13 P2-6 and CSph1b but less similar to those of CM 39. The 1M/1D substitution line NB 4-8-5-9 could further be used for developing translocation lines with 1M segment. Supplementary Information The online version contains supplementary material available at 10.1007/s11032-021-01207-2.
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Affiliation(s)
- Liangzhu Kang
- Triticeae Research Institute, Sichuan Agricultural University, Wenjiang, Chengdu, 611130 Sichuan People’s Republic of China
| | - Shoufen Dai
- Triticeae Research Institute, Sichuan Agricultural University, Wenjiang, Chengdu, 611130 Sichuan People’s Republic of China
- State Key laboratory of Crop Gene Exploration and Utilization in Southwest China, Wenjiang, Chengdu, 611130 Sichuan People’s Republic of China
| | - Zhongping Song
- Triticeae Research Institute, Sichuan Agricultural University, Wenjiang, Chengdu, 611130 Sichuan People’s Republic of China
| | - Qin Xiang
- Triticeae Research Institute, Sichuan Agricultural University, Wenjiang, Chengdu, 611130 Sichuan People’s Republic of China
| | - Yuanyuan Zuo
- Triticeae Research Institute, Sichuan Agricultural University, Wenjiang, Chengdu, 611130 Sichuan People’s Republic of China
| | - Tingyu Bao
- Triticeae Research Institute, Sichuan Agricultural University, Wenjiang, Chengdu, 611130 Sichuan People’s Republic of China
| | - Guoyue Chen
- Triticeae Research Institute, Sichuan Agricultural University, Wenjiang, Chengdu, 611130 Sichuan People’s Republic of China
- State Key laboratory of Crop Gene Exploration and Utilization in Southwest China, Wenjiang, Chengdu, 611130 Sichuan People’s Republic of China
| | - Yuming Wei
- Triticeae Research Institute, Sichuan Agricultural University, Wenjiang, Chengdu, 611130 Sichuan People’s Republic of China
- State Key laboratory of Crop Gene Exploration and Utilization in Southwest China, Wenjiang, Chengdu, 611130 Sichuan People’s Republic of China
| | - Youliang Zheng
- Triticeae Research Institute, Sichuan Agricultural University, Wenjiang, Chengdu, 611130 Sichuan People’s Republic of China
- State Key laboratory of Crop Gene Exploration and Utilization in Southwest China, Wenjiang, Chengdu, 611130 Sichuan People’s Republic of China
| | - Gang Liu
- Triticeae Research Institute, Sichuan Agricultural University, Wenjiang, Chengdu, 611130 Sichuan People’s Republic of China
| | - Jian Li
- Triticeae Research Institute, Sichuan Agricultural University, Wenjiang, Chengdu, 611130 Sichuan People’s Republic of China
| | - Zehong Yan
- Triticeae Research Institute, Sichuan Agricultural University, Wenjiang, Chengdu, 611130 Sichuan People’s Republic of China
- State Key laboratory of Crop Gene Exploration and Utilization in Southwest China, Wenjiang, Chengdu, 611130 Sichuan People’s Republic of China
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Liu C, Gong W, Han R, Guo J, Li G, Li H, Song J, Liu A, Cao X, Zhai S, Cheng D, Li G, Zhao Z, Yang Z, Liu J, Reader SM. Characterization, identification and evaluation of a set of wheat-Aegilops comosa chromosome lines. Sci Rep 2019; 9:4773. [PMID: 30886203 PMCID: PMC6423130 DOI: 10.1038/s41598-019-41219-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Accepted: 02/26/2019] [Indexed: 11/21/2022] Open
Abstract
This study characterized and evaluated a set of wheat-Aegilops comosa introgression lines, including six additions and one substitution. A total of 47 PLUG markers and a set of cytogenetic markers specific for Ae. comosa chromosomes were established after screening 526 PLUG primer pairs and performing FISH using oligonucleotides as probes. Marker analysis confirmed that these lines were wheat-Ae. comosa 2M–7M addition lines and a 6M(6A) substitution line. The molecular and cytogenetic markers developed herein could be used to trace Ae. comosa chromatin in wheat background. In order to evaluate the breeding value of the material, disease resistance tests and agronomical trait investigations were carried out on these alien chromosome introgression lines. Disease resistance tests showed that chromosomes 2M and 7M of Ae. comosa might harbor new stripe rust and powdery mildew resistance genes, respectively, therefore, they could be used as resistance sources for wheat breeding. Investigations into agronomical traits showed that all chromosomes 2M to 7M had detrimental effects on the agronomic performance of wheat, therefore, the selection of plants with relatively negative effects should be avoided when inducing wheat-A. comosa chromosome translocations using chromosome engineering procedures.
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Affiliation(s)
- Cheng Liu
- Crop Research Institute, Shandong Academy of Agricultural Sciences/Key Laboratory of Wheat Biology and Genetic Improvement in the North Yellow & Huai River Valley, Ministry of Agriculture/National Engineering Laboratory for Wheat & Maize, Jinan, 250100, China.,Colloge of Life Science, Shandong Normal University, Jinan, 250014, China
| | - Wenping Gong
- Crop Research Institute, Shandong Academy of Agricultural Sciences/Key Laboratory of Wheat Biology and Genetic Improvement in the North Yellow & Huai River Valley, Ministry of Agriculture/National Engineering Laboratory for Wheat & Maize, Jinan, 250100, China
| | - Ran Han
- Crop Research Institute, Shandong Academy of Agricultural Sciences/Key Laboratory of Wheat Biology and Genetic Improvement in the North Yellow & Huai River Valley, Ministry of Agriculture/National Engineering Laboratory for Wheat & Maize, Jinan, 250100, China
| | - Jun Guo
- Crop Research Institute, Shandong Academy of Agricultural Sciences/Key Laboratory of Wheat Biology and Genetic Improvement in the North Yellow & Huai River Valley, Ministry of Agriculture/National Engineering Laboratory for Wheat & Maize, Jinan, 250100, China
| | - Guangrong Li
- School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, 610054, China
| | - Haosheng Li
- Crop Research Institute, Shandong Academy of Agricultural Sciences/Key Laboratory of Wheat Biology and Genetic Improvement in the North Yellow & Huai River Valley, Ministry of Agriculture/National Engineering Laboratory for Wheat & Maize, Jinan, 250100, China
| | - Jianmin Song
- Crop Research Institute, Shandong Academy of Agricultural Sciences/Key Laboratory of Wheat Biology and Genetic Improvement in the North Yellow & Huai River Valley, Ministry of Agriculture/National Engineering Laboratory for Wheat & Maize, Jinan, 250100, China.,Colloge of Life Science, Shandong Normal University, Jinan, 250014, China
| | - Aifeng Liu
- Crop Research Institute, Shandong Academy of Agricultural Sciences/Key Laboratory of Wheat Biology and Genetic Improvement in the North Yellow & Huai River Valley, Ministry of Agriculture/National Engineering Laboratory for Wheat & Maize, Jinan, 250100, China
| | - Xinyou Cao
- Crop Research Institute, Shandong Academy of Agricultural Sciences/Key Laboratory of Wheat Biology and Genetic Improvement in the North Yellow & Huai River Valley, Ministry of Agriculture/National Engineering Laboratory for Wheat & Maize, Jinan, 250100, China.,Colloge of Life Science, Shandong Normal University, Jinan, 250014, China
| | - Shengnan Zhai
- Crop Research Institute, Shandong Academy of Agricultural Sciences/Key Laboratory of Wheat Biology and Genetic Improvement in the North Yellow & Huai River Valley, Ministry of Agriculture/National Engineering Laboratory for Wheat & Maize, Jinan, 250100, China
| | - Dungong Cheng
- Crop Research Institute, Shandong Academy of Agricultural Sciences/Key Laboratory of Wheat Biology and Genetic Improvement in the North Yellow & Huai River Valley, Ministry of Agriculture/National Engineering Laboratory for Wheat & Maize, Jinan, 250100, China
| | - Genying Li
- Crop Research Institute, Shandong Academy of Agricultural Sciences/Key Laboratory of Wheat Biology and Genetic Improvement in the North Yellow & Huai River Valley, Ministry of Agriculture/National Engineering Laboratory for Wheat & Maize, Jinan, 250100, China.,Colloge of Life Science, Shandong Normal University, Jinan, 250014, China
| | - Zhendong Zhao
- Crop Research Institute, Shandong Academy of Agricultural Sciences/Key Laboratory of Wheat Biology and Genetic Improvement in the North Yellow & Huai River Valley, Ministry of Agriculture/National Engineering Laboratory for Wheat & Maize, Jinan, 250100, China
| | - Zujun Yang
- School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, 610054, China
| | - Jianjun Liu
- Crop Research Institute, Shandong Academy of Agricultural Sciences/Key Laboratory of Wheat Biology and Genetic Improvement in the North Yellow & Huai River Valley, Ministry of Agriculture/National Engineering Laboratory for Wheat & Maize, Jinan, 250100, China.
| | - Stephen M Reader
- John Innes Centre, Norwich Research Park, Colney, Norwich, NR4 7UH, UK.
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Tapetal-Delayed Programmed Cell Death (PCD) and Oxidative Stress-Induced Male Sterility of Aegilops uniaristata Cytoplasm in Wheat. Int J Mol Sci 2018; 19:ijms19061708. [PMID: 29890696 PMCID: PMC6032135 DOI: 10.3390/ijms19061708] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2018] [Revised: 06/05/2018] [Accepted: 06/06/2018] [Indexed: 01/31/2023] Open
Abstract
Cytoplasmic male sterility (CMS) plays a crucial role in the utilization of hybrid vigor. Pollen development is often accompanied by oxidative metabolism responses and tapetal programmed cell death (PCD), and deficiency in these processes could lead to male sterility. Aegilops uniaristata cytoplasmic male sterility (Mu-CMS) wheat is a novel male-sterile line in wheat, which possess important potential in hybrid wheat breeding. However, its CMS mechanisms remain poorly understood. In our study, U87B1-706A, with the Aegilops uniaristata cytoplasm, and the maintainer line 706B were used to explore the abortive reason. Compared with 706B, histological analysis and PCD detection of the anther demonstrated that U87B1-706A appeared as delayed tapetal PCD as well as a disorganized organelle phenotype in the early uninucleate stage. Subsequently, a shrunken microspore and disordered exine structure were exhibited in the late uninucleate stage. While the activities of antioxidase increased markedly, the nonenzymatic antioxidant contents declined obviously following overacummulation of reactive oxygen species (ROS) during pollen development in U87B1-706A. Real-time quantitative PCR testified that the transcript levels of the superoxide dismutase (SOD), catalase (CAT), and ascorbate peroxidase (APX) genes, encoding pivotal antioxidant enzymes, were up-regulated in early pollen development. Therefore, we deduce excess ROS as a signal may be related to the increased expression levels of enzyme genes, thereby breaking the antioxidative system balance, resulting in delayed tapetal PCD initiation, which finally led to pollen abortion and male sterility in U87B1-706A. These results provide evidence to further explore the mechanisms of abortive pollen in CMS wheat.
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Liu Z, Shi X, Li S, Zhang L, Song X. Oxidative Stress and Aberrant Programmed Cell Death Are Associated With Pollen Abortion in Isonuclear Alloplasmic Male-Sterile Wheat. FRONTIERS IN PLANT SCIENCE 2018; 9:595. [PMID: 29780399 PMCID: PMC5945952 DOI: 10.3389/fpls.2018.00595] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2017] [Accepted: 04/16/2018] [Indexed: 05/18/2023]
Abstract
Cytoplasmic male sterility is crucial for the utilization of hybrid heterosis and it possibly occurs in parallel with tapetal programmed cell death (PCD) and oxidative metabolism responses. However, little is known about the mechanisms that underlie pollen abortion in wheat. Therefore, we obtained two isonuclear alloplasmic male sterile lines (IAMSLs) with Aegilops kotschyi and Ae. juvenalis cytoplasm. Compared with the maintainer line, cytochemical analyses of the anthers demonstrated that the IAMSLs exhibited anomalous tapetal PCD and organelles, with premature PCD in K87B1-706A and delayed PCD in Ju87B1-706A. We also found that the dynamic trends in reactive oxygen species (ROS) were consistent in these two IAMSLs during anther development and they were potentially associated with the initiation of tapetal PCD. In addition, the activities of ROS-scavenging enzymes increased rapidly, whereas non-enzymatic antioxidants were downregulated together with excess ROS production in IAMSLs. Real-time PCR analysis showed that the expression levels of superoxide dismutase, catalase, and ascorbate peroxidase genes, which encode important antioxidant enzymes, were significantly upregulated during early pollen development. Thus, we inferred that excessive ROS and the abnormal transcript levels of antioxidant enzyme genes disrupted the balance of the antioxidant system and the presence of excess ROS may have been related to aberrant tapetal PCD progression, thereby affecting the development of microspores and ultimately causing male sterility. These relationships between the mechanism of PCD and ROS metabolism provide new insights into the mechanisms responsible for abortive pollen in wheat.
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Affiliation(s)
| | | | | | | | - Xiyue Song
- College of Agronomy, Northwest A&F University, Yangling, China
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Genotyping-by-Sequencing Facilitates a High-Density Consensus Linkage Map for Aegilops umbellulata, a Wild Relative of Cultivated Wheat. G3-GENES GENOMES GENETICS 2017; 7:1551-1561. [PMID: 28364036 PMCID: PMC5427507 DOI: 10.1534/g3.117.039966] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
High-density genetic maps are useful to precisely localize QTL or genes that might be used to improve traits of nutritional and/or economical importance in crops. However, high-density genetic maps are lacking for most wild relatives of crop species, including wheat. Aegilops umbellulata is a wild relative of wheat known for its potential as a source of biotic and abiotic stress resistance genes. In this work, we have developed a framework consensus genetic map using two biparental populations derived from accessions PI 298905, PI 542369, PI 5422375, and PI 554395. The framework map comprised 3009 genotype-by-sequence SNPs with a total map size of 948.72 cM. On average, there were three SNPs per centimorgan for each chromosome. Chromosome 1U was the shortest (66.5 cM), with only 81 SNPs, whereas the remaining chromosomes had between 391 and 591 SNP markers. A total of 2395 unmapped SNPs were added to the linkage maps through a recombination frequency approach, and increased the number of SNPs placed on the consensus map to a total of 5404 markers. Segregation distortion was disproportionally high for chromosome 1U for both populations used to construct component linkage maps, and thus segregation distortion could be one of the probable reasons for the exceptionally reduced linkage size for chromosome 1U. From comparative analysis, Ae. umbellulata chromosomes except 4U showed moderate to strong collinearity with corresponding homeologous chromosomes of hexaploid wheat and barley. The present consensus map may serve as a reference map in QTL mapping and validation projects, and also in genome assembly to develop a reference genome sequence for Ae. umbellulata.
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Gong W, Han R, Li H, Song J, Yan H, Li G, Liu A, Cao X, Guo J, Zhai S, Cheng D, Zhao Z, Liu C, Liu J. Agronomic Traits and Molecular Marker Identification of Wheat- Aegilops caudata Addition Lines. FRONTIERS IN PLANT SCIENCE 2017; 8:1743. [PMID: 29075275 PMCID: PMC5644244 DOI: 10.3389/fpls.2017.01743] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2017] [Accepted: 09/25/2017] [Indexed: 05/05/2023]
Abstract
Aegilops caudata is an important gene source for wheat breeding. Intensive evaluation of its utilization value is an essential first step prior to its application in breeding. In this research, the agronomical and quality traits of Triticum aestivum-Ae. caudata additions B-G (homoeologous groups not identified) were analyzed and evaluated. Disease resistance tests showed that chromosome D of Ae. caudata might possess leaf rust resistance, and chromosome E might carry stem rust and powdery mildew resistance genes. Investigations into agronomical traits suggested that the introduction of the Ae. caudata chromosome in addition line F could reduce plant height. Grain quality tests showed that the introduction of chromosomes E or F into wheat could increase its protein and wet gluten content. Therefore, wheat-Ae. caudata additions D-F are all potentially useful candidates for chromosome engineering activities to create useful wheat-alien chromosome introgressions. A total of 55 EST-based molecular markers were developed and then used to identify the chromosome homoeologous group of each of the Ae. caudata B-G chromosomes. Marker analysis indicated that the Ae. caudata chromosomes in addition lines B to G were structurally altered, therefore, a large population combined with intensive screening pressure should be taken into consideration when inducing and screening for wheat-Ae. caudata compensating translocations. Marker data also indicated that the Ae. caudata chromosomes in addition lines C-F were 5C, 6C, 7C, and 3C, respectively, while the homoeologous group of chromosomes B and G of Ae. caudata are as yet undetermined and need further research.
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Affiliation(s)
- Wenping Gong
- Crop Research Institute, Shandong Academy of Agricultural Sciences/Key Laboratory of Wheat Biology and Genetic Improvement in the Northern Yellow-Huai Rivers Valley of Ministry of Agriculture/National Engineering Laboratory for Wheat and Maize, Jinan, China
| | - Ran Han
- Crop Research Institute, Shandong Academy of Agricultural Sciences/Key Laboratory of Wheat Biology and Genetic Improvement in the Northern Yellow-Huai Rivers Valley of Ministry of Agriculture/National Engineering Laboratory for Wheat and Maize, Jinan, China
| | - Haosheng Li
- Crop Research Institute, Shandong Academy of Agricultural Sciences/Key Laboratory of Wheat Biology and Genetic Improvement in the Northern Yellow-Huai Rivers Valley of Ministry of Agriculture/National Engineering Laboratory for Wheat and Maize, Jinan, China
| | - Jianmin Song
- Crop Research Institute, Shandong Academy of Agricultural Sciences/Key Laboratory of Wheat Biology and Genetic Improvement in the Northern Yellow-Huai Rivers Valley of Ministry of Agriculture/National Engineering Laboratory for Wheat and Maize, Jinan, China
| | - Hongfei Yan
- College of Plant Protection, Agricultural University of Hebei, Baoding, China
| | - Genying Li
- Crop Research Institute, Shandong Academy of Agricultural Sciences/Key Laboratory of Wheat Biology and Genetic Improvement in the Northern Yellow-Huai Rivers Valley of Ministry of Agriculture/National Engineering Laboratory for Wheat and Maize, Jinan, China
- College of Life Science, Shandong Normal University, Jinan, China
| | - Aifeng Liu
- Crop Research Institute, Shandong Academy of Agricultural Sciences/Key Laboratory of Wheat Biology and Genetic Improvement in the Northern Yellow-Huai Rivers Valley of Ministry of Agriculture/National Engineering Laboratory for Wheat and Maize, Jinan, China
| | - Xinyou Cao
- Crop Research Institute, Shandong Academy of Agricultural Sciences/Key Laboratory of Wheat Biology and Genetic Improvement in the Northern Yellow-Huai Rivers Valley of Ministry of Agriculture/National Engineering Laboratory for Wheat and Maize, Jinan, China
- College of Life Science, Shandong Normal University, Jinan, China
| | - Jun Guo
- Crop Research Institute, Shandong Academy of Agricultural Sciences/Key Laboratory of Wheat Biology and Genetic Improvement in the Northern Yellow-Huai Rivers Valley of Ministry of Agriculture/National Engineering Laboratory for Wheat and Maize, Jinan, China
| | - Shengnan Zhai
- Crop Research Institute, Shandong Academy of Agricultural Sciences/Key Laboratory of Wheat Biology and Genetic Improvement in the Northern Yellow-Huai Rivers Valley of Ministry of Agriculture/National Engineering Laboratory for Wheat and Maize, Jinan, China
| | - Dungong Cheng
- Crop Research Institute, Shandong Academy of Agricultural Sciences/Key Laboratory of Wheat Biology and Genetic Improvement in the Northern Yellow-Huai Rivers Valley of Ministry of Agriculture/National Engineering Laboratory for Wheat and Maize, Jinan, China
| | - Zhendong Zhao
- Crop Research Institute, Shandong Academy of Agricultural Sciences/Key Laboratory of Wheat Biology and Genetic Improvement in the Northern Yellow-Huai Rivers Valley of Ministry of Agriculture/National Engineering Laboratory for Wheat and Maize, Jinan, China
| | - Cheng Liu
- Crop Research Institute, Shandong Academy of Agricultural Sciences/Key Laboratory of Wheat Biology and Genetic Improvement in the Northern Yellow-Huai Rivers Valley of Ministry of Agriculture/National Engineering Laboratory for Wheat and Maize, Jinan, China
- College of Life Science, Shandong Normal University, Jinan, China
- *Correspondence: Cheng Liu
| | - Jianjun Liu
- Crop Research Institute, Shandong Academy of Agricultural Sciences/Key Laboratory of Wheat Biology and Genetic Improvement in the Northern Yellow-Huai Rivers Valley of Ministry of Agriculture/National Engineering Laboratory for Wheat and Maize, Jinan, China
- Jianjun Liu
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Edae EA, Olivera PD, Jin Y, Poland JA, Rouse MN. Genotype-by-sequencing facilitates genetic mapping of a stem rust resistance locus in Aegilops umbellulata, a wild relative of cultivated wheat. BMC Genomics 2016; 17:1039. [PMID: 27978816 PMCID: PMC5159964 DOI: 10.1186/s12864-016-3370-2] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2016] [Accepted: 12/02/2016] [Indexed: 01/05/2023] Open
Abstract
BACKGROUND Wild relatives of wheat play a significant role in wheat improvement as a source of genetic diversity. Stem rust disease of wheat causes significant yield losses at the global level and stem rust pathogen race TTKSK (Ug99) is virulent to most previously deployed resistance genes. Therefore, the objective of this study was to identify loci conferring resistance to stem rust pathogen races including Ug99 in an Aegilops umbelluata bi-parental mapping population using genotype-by-sequencing (GBS) SNP markers. RESULTS A bi-parental F2:3 population derived from a cross made between stem rust resistant accession PI 298905 and stem rust susceptible accession PI 542369 was used for this study. F2 individuals were evaluated with stem rust race TTTTF followed by testing F2:3 families with races TTTTF and TTKSK. The segregation pattern of resistance to both stem rust races suggested the presence of one resistance gene. A genetic linkage map, comprised 1,933 SNP markers, was created for all seven chromosomes of Ae. umbellulata using GBS. A major stem rust resistance QTL that explained 80% and 52% of the phenotypic variations for TTTTF and TTKSK, respectively, was detected on chromosome 2U of Ae. umbellulata. CONCLUSION The novel resistance gene for stem rust identified in this study can be transferred to commercial wheat varieties assisted by the tightly linked markers identified here. These markers identified through our mapping approach can be a useful strategy to identify and track the resistance gene in marker-assisted breeding in wheat.
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Affiliation(s)
- Erena A Edae
- USDA-ARS, Cereal Disease Laboratory, St. Paul, MN, 55108, USA.
| | - Pablo D Olivera
- Department of Plant Pathology, University of Minnesota, St. Paul, MN, 55108, USA
| | - Yue Jin
- USDA-ARS, Cereal Disease Laboratory, St. Paul, MN, 55108, USA
- Department of Plant Pathology, University of Minnesota, St. Paul, MN, 55108, USA
| | - Jesse A Poland
- Wheat Genetics Resource Center, Department of Plant Pathology and Department of Agronomy, Kansas State University, Manhattan, KS, 66506, USA
| | - Matthew N Rouse
- USDA-ARS, Cereal Disease Laboratory, St. Paul, MN, 55108, USA.
- Department of Plant Pathology, University of Minnesota, St. Paul, MN, 55108, USA.
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Liu C, Li GR, Gong WP, Li GY, Han R, Li HS, Song JM, Liu AF, Cao XY, Chu XS, Yang ZJ, Huang CY, Zhao ZD, Liu JJ. Molecular and Cytogenetic Characterization of a Powdery Mildew-Resistant Wheat-Aegilops mutica Partial Amphiploid and Addition Line. Cytogenet Genome Res 2016; 147:186-94. [PMID: 26836300 DOI: 10.1159/000443625] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/08/2015] [Indexed: 11/19/2022] Open
Abstract
Aegilops mutica Boiss., a diploid species (2n = 2x = 14, TT), has been rarely studied before. In this research, a hexaploid wheat (cv. Chinese Spring)-Ae. mutica partial amphiploid and a wheat-Ae. mutica addition line were characterized by chromosome karyotyping, FISH using oligonucleotides Oligo-pTa535-1, Oligo-pSc119.2-1, and (GAA)8 as probes, and EST-based molecular markers. The results showed that the partial amphiploid strain consisted of 20 pairs of wheat chromosomes and 7 pairs of Ae. mutica chromosomes, with both wheat 7B chromosomes missing. EST-based molecular marker data suggested that the wheat-Ae. mutica addition line carries the 7T chromosome. Resistance tests indicated that both the partial amphiploid and the 7T addition line were highly resistant to powdery mildew, whereas the wheat control line Chinese Spring was highly susceptible, indicating the presence of a potentially new powdery mildew resistance gene on the Ae. mutica 7T chromosome. The karyotype, FISH patterns, and molecular markers can now be used to identify Ae. mutica chromatin in a wheat background, and the 7T addition could be used as a new powdery mildew resistance source for wheat breeding.
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Affiliation(s)
- Cheng Liu
- Crop Research Institute, Shandong Academy of Agricultural Sciences, Jinan, China
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Gong W, Gong W, Han R, Li G, Sehgal SK, Li H, Liu A, Song J, Song G, Liu C, Liu J. Chromosome arm-specific markers from Aegilops searsii permits targeted introgression. Biologia (Bratisl) 2016. [DOI: 10.1515/biolog-2016-0003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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