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Xu F, Su T, Zhang X, Qiu L, Yang X, Koizuka N, Arimura S, Hu Z, Zhang M, Yang J. Editing of ORF138 restores fertility of Ogura cytoplasmic male sterile broccoli via mitoTALENs. PLANT BIOTECHNOLOGY JOURNAL 2024; 22:1325-1334. [PMID: 38213067 PMCID: PMC11022808 DOI: 10.1111/pbi.14268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 11/03/2023] [Accepted: 11/29/2023] [Indexed: 01/13/2024]
Abstract
Cytoplasmic male sterility (CMS), encoded by the mitochondrial open reading frames (ORFs), has long been used to economically produce crop hybrids. However, the utilization of CMS also hinders the exploitation of sterility and fertility variation in the absence of a restorer line, which in turn narrows the genetic background and reduces biodiversity. Here, we used a mitochondrial targeted transcription activator-like effector nuclease (mitoTALENs) to knock out ORF138 from the Ogura CMS broccoli hybrid. The knockout was confirmed by the amplification and re-sequencing read mapping to the mitochondrial genome. As a result, knockout of ORF138 restored the fertility of the CMS hybrid, and simultaneously manifested a cold-sensitive male sterility. ORF138 depletion is stably inherited to the next generation, allowing for direct use in the breeding process. In addition, we proposed a highly reliable and cost-effective toolkit to accelerate the life cycle of fertile lines from CMS-derived broccoli hybrids. By applying the k-mean clustering and interaction network analysis, we identified the central gene networks involved in the fertility restoration and cold-sensitive male sterility. Our study enables mitochondrial genome editing via mitoTALENs in Brassicaceae vegetable crops and provides evidence that the sex production machinery and its temperature-responsive ability are regulated by the mitochondria.
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Affiliation(s)
- Fengyuan Xu
- Hainan Institute, Zhejiang UniversityYazhou Bay Science and Technology CitySanyaChina
- Laboratory of Germplasm Innovation and Molecular Breeding, Institute of Vegetable ScienceZhejiang UniversityHangzhouChina
| | - Tongbing Su
- Beijing Vegetable Research CenterBeijing Academy of Agriculture and Forestry SciencesBeijingChina
| | - Xiaochen Zhang
- Hainan Institute, Zhejiang UniversityYazhou Bay Science and Technology CitySanyaChina
| | - Lei Qiu
- College of Horticulture and Landscape ArchitectureYangzhou UniversityYangzhouChina
| | - Xiaodong Yang
- College of Horticulture and Landscape ArchitectureYangzhou UniversityYangzhouChina
| | | | - Shin‐ichi Arimura
- Laboratory of Plant Molecular Genetics, Graduate School of Agricultural and Life SciencesThe University of TokyoTokyoJapan
| | - Zhongyuan Hu
- Hainan Institute, Zhejiang UniversityYazhou Bay Science and Technology CitySanyaChina
- Laboratory of Germplasm Innovation and Molecular Breeding, Institute of Vegetable ScienceZhejiang UniversityHangzhouChina
- Key Laboratory of Horticultural Plant Growth and DevelopmentMinistry of Agriculture and Rural AffairsHangzhouChina
| | - Mingfang Zhang
- Hainan Institute, Zhejiang UniversityYazhou Bay Science and Technology CitySanyaChina
- Laboratory of Germplasm Innovation and Molecular Breeding, Institute of Vegetable ScienceZhejiang UniversityHangzhouChina
- Key Laboratory of Horticultural Plant Growth and DevelopmentMinistry of Agriculture and Rural AffairsHangzhouChina
| | - Jinghua Yang
- Hainan Institute, Zhejiang UniversityYazhou Bay Science and Technology CitySanyaChina
- Laboratory of Germplasm Innovation and Molecular Breeding, Institute of Vegetable ScienceZhejiang UniversityHangzhouChina
- Key Laboratory of Horticultural Plant Growth and DevelopmentMinistry of Agriculture and Rural AffairsHangzhouChina
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Han F, Zhang X, Liu Y, Liu Y, Zhao H, Li Z. One-step creation of CMS lines using a BoCENH3-based haploid induction system in Brassica crop. NATURE PLANTS 2024; 10:581-586. [PMID: 38499776 PMCID: PMC11035129 DOI: 10.1038/s41477-024-01643-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Accepted: 02/04/2024] [Indexed: 03/20/2024]
Abstract
Heterosis utilization in a large proportion of crops depends on the use of cytoplasmic male sterility (CMS) tools, requiring the development of homozygous fertile lines and CMS lines1. Although doubled haploid (DH) technology has been developed for several crops to rapidly generate fertile lines2,3, CMS lines are generally created by multiple rounds of backcrossing, which is time consuming and expensive4. Here we describe a method for generating both homozygous fertile and CMS lines through in vivo paternal haploid induction (HI). We generated in-frame deletion and restored frameshift mutants of BoCENH3 in Brassica oleracea using the CRISPR/Cas9 system. The mutants induced paternal haploids by outcrossing. We subsequently generated HI lines with CMS cytoplasm, which enabled the generation of homozygous CMS lines in one step. The BoCENH3-based HI system provides a new DH technology to accelerate breeding in Brassica and other crops.
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Affiliation(s)
- Fengqing Han
- State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Xiaoli Zhang
- State Key Laboratory of Vegetable Biobreeding, Tianjin Academy of Agricultural Sciences, Tianjin, China
| | - Yuxiang Liu
- State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, China
- Key Laboratory for Vegetable Biology of Hunan Province, Engineering Research Center for Horticultural Crop Germplasm Creation and New Variety Breeding, Ministry of Education, Hunan Agricultural University, Changsha, China
| | - Yumei Liu
- State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Hong Zhao
- Beijing Vegetable Research Center (BVRC), Beijing Academy of Agricultural and Forestry Sciences, National Engineering Research Center for Vegetables, Beijing, China
| | - Zhansheng Li
- State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, China.
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3
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Han F, Yuan K, Sun W, Zhang X, Liu X, Zhao X, Yang L, Wang Y, Ji J, Liu Y, Li Z, Zhang J, Zhang C, Huang S, Zhang Y, Fang Z, Lv H. A natural mutation in the promoter of Ms-cd1 causes dominant male sterility in Brassica oleracea. Nat Commun 2023; 14:6212. [PMID: 37798291 PMCID: PMC10556095 DOI: 10.1038/s41467-023-41916-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2023] [Accepted: 09/24/2023] [Indexed: 10/07/2023] Open
Abstract
Male sterility has been used for crop hybrid breeding for a long time. It has contributed greatly to crop yield increase. However, the genetic basis of male sterility has not been fully elucidated. Here, we report map-based cloning of the cabbage (Brassica oleracea) dominant male-sterile gene Ms-cd1 and reveal that it encodes a PHD-finger motif transcription factor. A natural allele Ms-cd1PΔ-597, resulting from a 1-bp deletion in the promoter, confers dominant genic male sterility (DGMS), whereas loss-of-function ms-cd1 mutant shows recessive male sterility. We also show that the ethylene response factor BoERF1L represses the expression of Ms-cd1 by directly binding to its promoter; however, the 1-bp deletion in Ms-cd1PΔ-597 affects the binding. Furthermore, ectopic expression of Ms-cd1PΔ-597 confers DGMS in both dicotyledonous and monocotyledonous plant species. We thus propose that the DGMS system could be useful for breeding hybrids of multiple crop species.
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Affiliation(s)
- Fengqing Han
- State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Kaiwen Yuan
- State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Wenru Sun
- State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
- Key Laboratory for Vegetable Biology of Hunan Province, Engineering Research Center for Horticultural Crop Germplasm Creation and New Variety Breeding, Ministry of Education, Hunan Agricultural University, Changsha, 410128, China
| | - Xiaoli Zhang
- State Key Laboratory of Vegetable Biobreeding, Tianjin Academy of Agricultural Sciences, 300192, Tianjin, China
| | - Xing Liu
- State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Xinyu Zhao
- State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Limei Yang
- State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Yong Wang
- State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Jialei Ji
- State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Yumei Liu
- State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Zhansheng Li
- State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Jinzhe Zhang
- State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Chunzhi Zhang
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, Guangdong, 518120, China
| | - Sanwen Huang
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, Guangdong, 518120, China
- Chinese Academy of Tropical Agricultural Sciences, Haikou, Hainan, 571101, China
| | - Yangyong Zhang
- State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, 100081, China.
| | - Zhiyuan Fang
- State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, 100081, China.
| | - Honghao Lv
- State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, 100081, China.
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Chen L, Ren W, Zhang B, Guo H, Fang Z, Yang L, Zhuang M, Lv H, Wang Y, Ji J, Hou X, Zhang Y. Comparative Transcriptome Analysis Reveals a Potential Regulatory Network for Ogura Cytoplasmic Male Sterility in Cabbage (Brassica oleracea L.). Int J Mol Sci 2023; 24:ijms24076703. [PMID: 37047676 PMCID: PMC10094764 DOI: 10.3390/ijms24076703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2023] [Revised: 04/02/2023] [Accepted: 04/02/2023] [Indexed: 04/07/2023] Open
Abstract
Ogura cytoplasmic male sterility (CMS) lines are widely used breeding materials in cruciferous crops and play important roles in heterosis utilization; however, the sterility mechanism remains unclear. To investigate the microspore development process and gene expression changes after the introduction of orf138 and Rfo, cytological observation and transcriptome analysis were performed using a maintainer line, an Ogura CMS line, and a restorer line. Semithin sections of microspores at different developmental stages showed that the degradation of tapetal cells began at the tetrad stage in the Ogura CMS line, while it occurred at the bicellular microspore stage to the tricellular microspore stage in the maintainer and restorer lines. Therefore, early degradation of tapetal cells may be the cause of pollen abortion. Transcriptome analysis results showed that a total of 1287 DEGs had consistent expression trends in the maintainer line and restorer line, but were significantly up- or down-regulated in the Ogura CMS line, indicating that they may be closely related to pollen abortion. Functional annotation showed that the 1287 core DEGs included a large number of genes related to pollen development, oxidative phosphorylation, carbohydrate, lipid, and protein metabolism. In addition, further verification elucidated that down-regulated expression of genes related to energy metabolism led to decreased ATP content and excessive ROS accumulation in the anthers of Ogura CMS. Based on these results, we propose a transcriptome-mediated induction and regulatory network for cabbage Ogura CMS. Our research provides new insights into the mechanism of pollen abortion and fertility restoration in Ogura CMS.
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Affiliation(s)
- Li Chen
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Ministry of Agriculture, Beijing 100081, China
| | - Wenjing Ren
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Ministry of Agriculture, Beijing 100081, China
| | - Bin Zhang
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Ministry of Agriculture, Beijing 100081, China
| | - Huiling Guo
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Ministry of Agriculture, Beijing 100081, China
| | - Zhiyuan Fang
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Ministry of Agriculture, Beijing 100081, China
| | - Limei Yang
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Ministry of Agriculture, Beijing 100081, China
| | - Mu Zhuang
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Ministry of Agriculture, Beijing 100081, China
| | - Honghao Lv
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Ministry of Agriculture, Beijing 100081, China
| | - Yong Wang
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Ministry of Agriculture, Beijing 100081, China
| | - Jialei Ji
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Ministry of Agriculture, Beijing 100081, China
| | - Xilin Hou
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
| | - Yangyong Zhang
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Ministry of Agriculture, Beijing 100081, China
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Ren W, Si J, Chen L, Fang Z, Zhuang M, Lv H, Wang Y, Ji J, Yu H, Zhang Y. Mechanism and Utilization of Ogura Cytoplasmic Male Sterility in Cruciferae Crops. Int J Mol Sci 2022; 23:ijms23169099. [PMID: 36012365 PMCID: PMC9409259 DOI: 10.3390/ijms23169099] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 08/05/2022] [Accepted: 08/09/2022] [Indexed: 12/11/2022] Open
Abstract
Hybrid production using lines with cytoplasmic male sterility (CMS) has become an important way to utilize heterosis in vegetables. Ogura CMS, with the advantages of complete pollen abortion, ease of transfer and a progeny sterility rate reaching 100%, is widely used in cruciferous crop breeding. The mapping, cloning, mechanism and application of Ogura CMS and fertility restorer genes in Brassica napus, Brassica rapa, Brassica oleracea and other cruciferous crops are reviewed herein, and the existing problems and future research directions in the application of Ogura CMS are discussed.
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Affiliation(s)
- Wenjing Ren
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Key Laboratory of Biology and Genetic Improvement of Horticultural Crops, Ministry of Agriculture, Beijing 100081, China
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
| | - Jinchao Si
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Key Laboratory of Biology and Genetic Improvement of Horticultural Crops, Ministry of Agriculture, Beijing 100081, China
| | - Li Chen
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Key Laboratory of Biology and Genetic Improvement of Horticultural Crops, Ministry of Agriculture, Beijing 100081, China
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
| | - Zhiyuan Fang
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Key Laboratory of Biology and Genetic Improvement of Horticultural Crops, Ministry of Agriculture, Beijing 100081, China
| | - Mu Zhuang
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Key Laboratory of Biology and Genetic Improvement of Horticultural Crops, Ministry of Agriculture, Beijing 100081, China
| | - Honghao Lv
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Key Laboratory of Biology and Genetic Improvement of Horticultural Crops, Ministry of Agriculture, Beijing 100081, China
| | - Yong Wang
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Key Laboratory of Biology and Genetic Improvement of Horticultural Crops, Ministry of Agriculture, Beijing 100081, China
| | - Jialei Ji
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Key Laboratory of Biology and Genetic Improvement of Horticultural Crops, Ministry of Agriculture, Beijing 100081, China
| | - Hailong Yu
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Key Laboratory of Biology and Genetic Improvement of Horticultural Crops, Ministry of Agriculture, Beijing 100081, China
- Correspondence: (H.Y.); (Y.Z.)
| | - Yangyong Zhang
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Key Laboratory of Biology and Genetic Improvement of Horticultural Crops, Ministry of Agriculture, Beijing 100081, China
- Correspondence: (H.Y.); (Y.Z.)
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Quan C, Chen G, Li S, Jia Z, Yu P, Tu J, Shen J, Yi B, Fu T, Dai C, Ma C. Transcriptome shock in interspecific F1 allotriploid hybrids between Brassica species. JOURNAL OF EXPERIMENTAL BOTANY 2022; 73:2336-2353. [PMID: 35139197 DOI: 10.1093/jxb/erac047] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Accepted: 02/03/2022] [Indexed: 06/14/2023]
Abstract
Interspecific hybridization drives the evolution of angiosperms and can be used to introduce novel alleles for important traits or to activate heterosis in crop breeding. Hybridization brings together gene expression networks from two different species, potentially causing global alterations of gene expression in the F1 plants which is called 'transcriptome shock'. Here, we explored such a transcriptome shock in allotriploid Brassica hybrids. We generated interspecific F1 allotriploid hybrids between the allotetraploid species Brassica napus and three accessions of the diploid species Brassica rapa. RNA-seq of the F1 hybrids and the parental plants revealed that 26.34-30.89% of genes were differentially expressed between the parents. We also analyzed expression level dominance and homoeolog expression bias between the parents and the F1 hybrids. The expression-level dominance biases of the Ar, An, and Cn subgenomes was genotype and stage dependent, whereas significant homoeolog expression bias was observed among three subgenomes from different parents. Furthermore, more genes were involved in trans regulation than in cis regulation in allotriploid F1 hybrids. Our findings provide new insights into the transcriptomic responses of cross-species hybrids and hybrids showing heterosis, as well as a new method for promoting the breeding of desirable traits in polyploid Brassica species.
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Affiliation(s)
- Chengtao Quan
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan 430070, China
- Hubei Hongshan Laboratory, Wuhan, 430070, China
| | - Guoting Chen
- College of Informatics, Huazhong Agricultural University, Wuhan 430070, China
| | - Sijia Li
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan 430070, China
| | - Zhibo Jia
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan 430070, China
| | - Pugang Yu
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan 430070, China
| | - Jinxing Tu
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan 430070, China
| | - Jinxiong Shen
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan 430070, China
| | - Bin Yi
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan 430070, China
| | - Tingdong Fu
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan 430070, China
| | - Cheng Dai
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan 430070, China
- Hubei Hongshan Laboratory, Wuhan, 430070, China
| | - Chaozhi Ma
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan 430070, China
- Hubei Hongshan Laboratory, Wuhan, 430070, China
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7
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Xu F, Yang X, Zhao N, Hu Z, Mackenzie SA, Zhang M, Yang J. Exploiting sterility and fertility variation in cytoplasmic male sterile vegetable crops. HORTICULTURE RESEARCH 2022; 9:uhab039. [PMID: 35039865 PMCID: PMC8807945 DOI: 10.1093/hr/uhab039] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Revised: 01/18/2022] [Accepted: 10/15/2021] [Indexed: 05/04/2023]
Abstract
Cytoplasmic male sterility (CMS) has long been used to economically produce hybrids that harness growth vigor through heterosis. Yet, how CMS systems operate within commercially viable seed production strategies in various economically important vegetable crops, and their underlying molecular mechanisms, are often overlooked details that could expand the utility of CMS as a cost-effective and stable system. We provide here an update on the nature of cytoplasmic-nuclear interplay for pollen sterility and fertility transitions in vegetable crops, based on the discovery of components of nuclear fertility restoration and reversion determinants. Within plant CMS systems, pollen fertility can be rescued by the introduction of nuclear fertility restorer genes (Rfs), which operate by varied mechanisms to countermand the sterility phenotype. By understanding these systems, it is now becoming feasible to achieve fertility restoration with Rfs designed for programmable CMS-associated open reading frames (ORFs). Likewise, new opportunities exist for targeted disruption of CMS-associated ORFs by mito-TALENs in crops where natural Rfs have not been readily identified, providing an alternative approach to recovering fertility of cytoplasmic male sterile lines in crops. Recent findings show that facultative gynodioecy, as a reproductive strategy, can coordinate the sterility and fertility transition in response to environmental cues and/or metabolic signals that reflect ecological conditions of reproductive isolation. This information is important to devising future systems that are more inherently stable.
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Affiliation(s)
- Fengyuan Xu
- Laboratory of Germplasm Innovation and Molecular Breeding, Institute of Vegetable Science, Zhejiang University, Hangzhou, Zhejiang, 310058, China
| | - Xiaodong Yang
- Departments of Biology and Plant Science, The Pennsylvania State University, University Park, PA, 16802, USA
- School of Horticulture and Plant Protection, Yangzhou University, Yangzhou, Jiangsu, China
| | - Na Zhao
- College of Grassland Science, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China
| | - Zhongyuan Hu
- Laboratory of Germplasm Innovation and Molecular Breeding, Institute of Vegetable Science, Zhejiang University, Hangzhou, Zhejiang, 310058, China
| | - Sally A Mackenzie
- Departments of Biology and Plant Science, The Pennsylvania State University, University Park, PA, 16802, USA
| | - Mingfang Zhang
- Laboratory of Germplasm Innovation and Molecular Breeding, Institute of Vegetable Science, Zhejiang University, Hangzhou, Zhejiang, 310058, China
- Hainan Institute, Zhejiang University, Yazhou Bay Science and Technology City, Sanya, 572025, China
- Key Laboratory of Horticultural Plant Growth and Development, Ministry of Agriculture and Rural Affairs, Hangzhou,
Zhejiang, 310058, China
| | - Jinghua Yang
- Laboratory of Germplasm Innovation and Molecular Breeding, Institute of Vegetable Science, Zhejiang University, Hangzhou, Zhejiang, 310058, China
- Hainan Institute, Zhejiang University, Yazhou Bay Science and Technology City, Sanya, 572025, China
- Key Laboratory of Horticultural Plant Growth and Development, Ministry of Agriculture and Rural Affairs, Hangzhou,
Zhejiang, 310058, China
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8
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Chen L, Ren W, Zhang B, Chen W, Fang Z, Yang L, Zhuang M, Lv H, Wang Y, Ji J, Zhang Y. Organelle Comparative Genome Analysis Reveals Novel Alloplasmic Male Sterility with orf112 in Brassica oleracea L. Int J Mol Sci 2021; 22:ijms222413230. [PMID: 34948024 PMCID: PMC8703919 DOI: 10.3390/ijms222413230] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 12/04/2021] [Accepted: 12/06/2021] [Indexed: 11/16/2022] Open
Abstract
B. oleracea Ogura CMS is an alloplasmic male-sterile line introduced from radish by interspecific hybridization and protoplast fusion. The introduction of alien cytoplasm resulted in many undesirable traits, which affected the yield of hybrids. Therefore, it is necessary to identify the composition and reduce the content of alien cytoplasm in B. oleracea Ogura CMS. In the present study, we sequenced, assembled, and compared the organelle genomes of Ogura CMS cabbage and its maintainer line. The chloroplast genome of Ogura-type cabbage was completely derived from normal-type cabbage, whereas the mitochondrial genome was recombined from normal-type cabbage and Ogura-type radish. Nine unique regions derived from radish were identified in the mitochondrial genome of Ogura-type cabbage, and the total length of these nine regions was 35,618 bp, accounting for 13.84% of the mitochondrial genome. Using 32 alloplasmic markers designed according to the sequences of these nine regions, one novel sterile source with less alien cytoplasm was discovered among 305 materials and named Bel CMS. The size of the alien cytoplasm in Bel CMS was 21,587 bp, accounting for 8.93% of its mtDNA, which was much less than that in Ogura CMS. Most importantly, the sterility gene orf138 was replaced by orf112, which had a 78-bp deletion, in Bel CMS. Interestingly, Bel CMS cabbage also maintained 100% sterility, although orf112 had 26 fewer amino acids than orf138. Field phenotypic observation showed that Bel CMS was an excellent sterile source with stable 100% sterility and no withered buds at the early flowering stage, which could replace Ogura CMS in cabbage heterosis utilization.
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Affiliation(s)
- Li Chen
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Ministry of Agriculture, Beijing 100081, China; (L.C.); (W.R.); (B.Z.); (W.C.); (Z.F.); (L.Y.); (M.Z.); (H.L.); (Y.W.); (J.J.)
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
| | - Wenjing Ren
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Ministry of Agriculture, Beijing 100081, China; (L.C.); (W.R.); (B.Z.); (W.C.); (Z.F.); (L.Y.); (M.Z.); (H.L.); (Y.W.); (J.J.)
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
| | - Bin Zhang
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Ministry of Agriculture, Beijing 100081, China; (L.C.); (W.R.); (B.Z.); (W.C.); (Z.F.); (L.Y.); (M.Z.); (H.L.); (Y.W.); (J.J.)
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
| | - Wendi Chen
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Ministry of Agriculture, Beijing 100081, China; (L.C.); (W.R.); (B.Z.); (W.C.); (Z.F.); (L.Y.); (M.Z.); (H.L.); (Y.W.); (J.J.)
| | - Zhiyuan Fang
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Ministry of Agriculture, Beijing 100081, China; (L.C.); (W.R.); (B.Z.); (W.C.); (Z.F.); (L.Y.); (M.Z.); (H.L.); (Y.W.); (J.J.)
| | - Limei Yang
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Ministry of Agriculture, Beijing 100081, China; (L.C.); (W.R.); (B.Z.); (W.C.); (Z.F.); (L.Y.); (M.Z.); (H.L.); (Y.W.); (J.J.)
| | - Mu Zhuang
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Ministry of Agriculture, Beijing 100081, China; (L.C.); (W.R.); (B.Z.); (W.C.); (Z.F.); (L.Y.); (M.Z.); (H.L.); (Y.W.); (J.J.)
| | - Honghao Lv
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Ministry of Agriculture, Beijing 100081, China; (L.C.); (W.R.); (B.Z.); (W.C.); (Z.F.); (L.Y.); (M.Z.); (H.L.); (Y.W.); (J.J.)
| | - Yong Wang
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Ministry of Agriculture, Beijing 100081, China; (L.C.); (W.R.); (B.Z.); (W.C.); (Z.F.); (L.Y.); (M.Z.); (H.L.); (Y.W.); (J.J.)
| | - Jialei Ji
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Ministry of Agriculture, Beijing 100081, China; (L.C.); (W.R.); (B.Z.); (W.C.); (Z.F.); (L.Y.); (M.Z.); (H.L.); (Y.W.); (J.J.)
| | - Yangyong Zhang
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Ministry of Agriculture, Beijing 100081, China; (L.C.); (W.R.); (B.Z.); (W.C.); (Z.F.); (L.Y.); (M.Z.); (H.L.); (Y.W.); (J.J.)
- Correspondence:
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9
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Boideau F, Pelé A, Tanguy C, Trotoux G, Eber F, Maillet L, Gilet M, Lodé-Taburel M, Huteau V, Morice J, Coriton O, Falentin C, Delourme R, Rousseau-Gueutin M, Chèvre AM. A Modified Meiotic Recombination in Brassica napus Largely Improves Its Breeding Efficiency. BIOLOGY 2021; 10:biology10080771. [PMID: 34440003 PMCID: PMC8389541 DOI: 10.3390/biology10080771] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Revised: 08/10/2021] [Accepted: 08/10/2021] [Indexed: 01/31/2023]
Abstract
Simple Summary The selection of varieties more resilient to disease and climate change requires generating new genetic diversity for breeding. The main mechanism for reshuffling genetic information is through the recombination of chromosomes during meiosis. We showed in oilseed rape (Brassica napus, AACC, 2n = 4x = 38), which is a natural hybrid formed from a cross between turnip (B. rapa, AA, 2n = 2x = 20) and cabbage (B. oleracea, CC, 2n = 2x = 18), that there is significantly more crossovers occurring along the entire A chromosomes in allotriploid AAC (crossbetween B. napus and B. rapa) than in diploid AA or allotetraploid AACC hybrids. We demonstrated that these allotriploid AAC hybrids are highly efficient to introduce new variability within oilseed rape varieties, notably by enabling the introduction of small genomic regions carrying genes controlling agronomically interesting traits. Abstract Meiotic recombination is the main tool used by breeders to generate biodiversity, allowing genetic reshuffling at each generation. It enables the accumulation of favorable alleles while purging deleterious mutations. However, this mechanism is highly regulated with the formation of one to rarely more than three crossovers, which are not randomly distributed. In this study, we showed that it is possible to modify these controls in oilseed rape (Brassica napus, AACC, 2n = 4x = 38) and that it is linked to AAC allotriploidy and not to polyploidy per se. To that purpose, we compared the frequency and the distribution of crossovers along A chromosomes from hybrids carrying exactly the same A nucleotide sequence, but presenting three different ploidy levels: AA, AAC and AACC. Genetic maps established with 202 SNPs anchored on reference genomes revealed that the crossover rate is 3.6-fold higher in the AAC allotriploid hybrids compared to AA and AACC hybrids. Using a higher SNP density, we demonstrated that smaller and numerous introgressions of B. rapa were present in AAC hybrids compared to AACC allotetraploid hybrids, with 7.6 Mb vs. 16.9 Mb on average and 21 B. rapa regions per plant vs. nine regions, respectively. Therefore, this boost of recombination is highly efficient to reduce the size of QTL carried in cold regions of the oilseed rape genome, as exemplified here for a QTL conferring blackleg resistance.
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Affiliation(s)
- Franz Boideau
- IGEPP, INRAE, Institut Agro, Université de Rennes, 35650 Le Rheu, France; (F.B.); (A.P.); (C.T.); (G.T.); (F.E.); (L.M.); (M.G.); (M.L.-T.); (V.H.); (J.M.); (O.C.); (C.F.); (R.D.); (M.R.-G.)
| | - Alexandre Pelé
- IGEPP, INRAE, Institut Agro, Université de Rennes, 35650 Le Rheu, France; (F.B.); (A.P.); (C.T.); (G.T.); (F.E.); (L.M.); (M.G.); (M.L.-T.); (V.H.); (J.M.); (O.C.); (C.F.); (R.D.); (M.R.-G.)
- Laboratory of Genome Biology, Institute of Molecular Biology and Biotechnology, Adam Mickiewicz University in Poznan, 61-614 Poznan, Poland
| | - Coleen Tanguy
- IGEPP, INRAE, Institut Agro, Université de Rennes, 35650 Le Rheu, France; (F.B.); (A.P.); (C.T.); (G.T.); (F.E.); (L.M.); (M.G.); (M.L.-T.); (V.H.); (J.M.); (O.C.); (C.F.); (R.D.); (M.R.-G.)
| | - Gwenn Trotoux
- IGEPP, INRAE, Institut Agro, Université de Rennes, 35650 Le Rheu, France; (F.B.); (A.P.); (C.T.); (G.T.); (F.E.); (L.M.); (M.G.); (M.L.-T.); (V.H.); (J.M.); (O.C.); (C.F.); (R.D.); (M.R.-G.)
| | - Frédérique Eber
- IGEPP, INRAE, Institut Agro, Université de Rennes, 35650 Le Rheu, France; (F.B.); (A.P.); (C.T.); (G.T.); (F.E.); (L.M.); (M.G.); (M.L.-T.); (V.H.); (J.M.); (O.C.); (C.F.); (R.D.); (M.R.-G.)
| | - Loeiz Maillet
- IGEPP, INRAE, Institut Agro, Université de Rennes, 35650 Le Rheu, France; (F.B.); (A.P.); (C.T.); (G.T.); (F.E.); (L.M.); (M.G.); (M.L.-T.); (V.H.); (J.M.); (O.C.); (C.F.); (R.D.); (M.R.-G.)
| | - Marie Gilet
- IGEPP, INRAE, Institut Agro, Université de Rennes, 35650 Le Rheu, France; (F.B.); (A.P.); (C.T.); (G.T.); (F.E.); (L.M.); (M.G.); (M.L.-T.); (V.H.); (J.M.); (O.C.); (C.F.); (R.D.); (M.R.-G.)
| | - Maryse Lodé-Taburel
- IGEPP, INRAE, Institut Agro, Université de Rennes, 35650 Le Rheu, France; (F.B.); (A.P.); (C.T.); (G.T.); (F.E.); (L.M.); (M.G.); (M.L.-T.); (V.H.); (J.M.); (O.C.); (C.F.); (R.D.); (M.R.-G.)
| | - Virginie Huteau
- IGEPP, INRAE, Institut Agro, Université de Rennes, 35650 Le Rheu, France; (F.B.); (A.P.); (C.T.); (G.T.); (F.E.); (L.M.); (M.G.); (M.L.-T.); (V.H.); (J.M.); (O.C.); (C.F.); (R.D.); (M.R.-G.)
| | - Jérôme Morice
- IGEPP, INRAE, Institut Agro, Université de Rennes, 35650 Le Rheu, France; (F.B.); (A.P.); (C.T.); (G.T.); (F.E.); (L.M.); (M.G.); (M.L.-T.); (V.H.); (J.M.); (O.C.); (C.F.); (R.D.); (M.R.-G.)
| | - Olivier Coriton
- IGEPP, INRAE, Institut Agro, Université de Rennes, 35650 Le Rheu, France; (F.B.); (A.P.); (C.T.); (G.T.); (F.E.); (L.M.); (M.G.); (M.L.-T.); (V.H.); (J.M.); (O.C.); (C.F.); (R.D.); (M.R.-G.)
| | - Cyril Falentin
- IGEPP, INRAE, Institut Agro, Université de Rennes, 35650 Le Rheu, France; (F.B.); (A.P.); (C.T.); (G.T.); (F.E.); (L.M.); (M.G.); (M.L.-T.); (V.H.); (J.M.); (O.C.); (C.F.); (R.D.); (M.R.-G.)
| | - Régine Delourme
- IGEPP, INRAE, Institut Agro, Université de Rennes, 35650 Le Rheu, France; (F.B.); (A.P.); (C.T.); (G.T.); (F.E.); (L.M.); (M.G.); (M.L.-T.); (V.H.); (J.M.); (O.C.); (C.F.); (R.D.); (M.R.-G.)
| | - Mathieu Rousseau-Gueutin
- IGEPP, INRAE, Institut Agro, Université de Rennes, 35650 Le Rheu, France; (F.B.); (A.P.); (C.T.); (G.T.); (F.E.); (L.M.); (M.G.); (M.L.-T.); (V.H.); (J.M.); (O.C.); (C.F.); (R.D.); (M.R.-G.)
| | - Anne-Marie Chèvre
- IGEPP, INRAE, Institut Agro, Université de Rennes, 35650 Le Rheu, France; (F.B.); (A.P.); (C.T.); (G.T.); (F.E.); (L.M.); (M.G.); (M.L.-T.); (V.H.); (J.M.); (O.C.); (C.F.); (R.D.); (M.R.-G.)
- Correspondence: ; Tel.: +33-2-23-48-51-31
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