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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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Han Y, Gao Y, Li Y, Zhai X, Zhou H, Ding Q, Ma L. Chloroplast Genes Are Involved in The Male-Sterility of K-Type CMS in Wheat. Genes (Basel) 2022; 13:310. [PMID: 35205355 PMCID: PMC8871828 DOI: 10.3390/genes13020310] [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: 12/31/2021] [Revised: 01/30/2022] [Accepted: 02/02/2022] [Indexed: 12/04/2022] Open
Abstract
The utilization of crop heterosis can greatly improve crop yield. The sterile line is vital for the heterosis utilization of wheat (Triticum aestivum L.). The chloroplast genomes of two sterile lines and one maintainer were sequenced using second-generation high-throughput technology and assembled. The nonsynonymous mutated genes among the three varieties were identified, the expressed difference was further analyzed by qPCR, and finally, the function of the differentially expressed genes was analyzed by the barley stripe mosaic virus-induced gene silencing (BSMV-VIGS) method. A total of 16 genes containing 31 nonsynonymous mutations between K519A and 519B were identified. There were no base mutations in the protein-encoding genes between K519A and YS3038. The chloroplast genomes of 519B and K519A were closely related to the Triticum genus and Aegilops genus, respectively. The gene expression levels of the six selected genes with nonsynonymous mutation sites for K519A compared to 519B were mostly downregulated at the binucleate and trinucleate stages of pollen development. The seed setting rates of atpB-silenced or ndhH-silenced 519B plants by BSMV-VIGS method were significantly reduced. It can be concluded that atpB and the ndhH are likely to be involved in the reproductive transformation of 519B.
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Affiliation(s)
- Yucui Han
- College of Agronomy and Biotechnology, Hebei Normal University of Science and Technology, Qinhuangdao 066000, China; (Y.H.); (Y.L.)
- College of Agronomy, Northwest A&F University, Xianyang 712100, China; (Y.G.); (X.Z.); (H.Z.)
| | - Yujie Gao
- College of Agronomy, Northwest A&F University, Xianyang 712100, China; (Y.G.); (X.Z.); (H.Z.)
| | - Yun Li
- College of Agronomy and Biotechnology, Hebei Normal University of Science and Technology, Qinhuangdao 066000, China; (Y.H.); (Y.L.)
| | - Xiaoguang Zhai
- College of Agronomy, Northwest A&F University, Xianyang 712100, China; (Y.G.); (X.Z.); (H.Z.)
| | - Hao Zhou
- College of Agronomy, Northwest A&F University, Xianyang 712100, China; (Y.G.); (X.Z.); (H.Z.)
| | - Qin Ding
- College of Horticulture, Northwest A&F University, Xianyang 712100, China
| | - Lingjian Ma
- College of Agronomy, Northwest A&F University, Xianyang 712100, China; (Y.G.); (X.Z.); (H.Z.)
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Wen JF, Zhao K, Lv JH, Huo JL, Wang ZR, Wan HJ, Zhu HS, Zhang ZQ, Shao GF, Wang J, Zhang S, Yang TY, Zhang JR, Zou XX, Deng MH. Orf165 is associated with cytoplasmic male sterility in pepper. Genet Mol Biol 2021; 44:e20210030. [PMID: 34555144 PMCID: PMC8459829 DOI: 10.1590/1678-4685-gmb-2021-0030] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2021] [Accepted: 07/04/2021] [Indexed: 11/22/2022] Open
Abstract
Cytoplasmic male sterility (CMS) is a maternally inherited trait that derives from the inability to produce functional pollen in higher plants. CMS results from recombination of the mitochondrial genome. However, understanding of the molecular mechanism of CMS in pepper is limited. In this study, comparative transcriptomic analyses were performed using a near-isogenic CMS line 14A (CMS-14A) and a maintainer line 14B (ML-14B) as experimental materials. A total of 17,349 differentially expressed genes were detected between CMS-14A and ML-14B at the PMC meiosis stage. Among them, six unigenes associated with CMS and 108 unigenes involved in energy metabolism were identified. The gene orf165 was found in CMS-14A. When orf165 was introduced into ML-14B, almost 30% of transgenic plants were CMS. In addition, orf165 expression in transgenic CMS plants resulted in abnormal function of some genes involved in energy metabolism. When orf165 in transgenic CMS plant was silenced, the resulted orf165-silenced plant was male fertile and the expression patterns of some genes associated with energy metabolism were similar to ML-14B. Thus, we confirmed that orf165 influenced CMS in pepper.
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Affiliation(s)
- Jin-Fen Wen
- Faculty of Architecture and City Planning, Kunming University of Science and Technology, Kunming, China.,College of Agriculture and Life Sciences, Cornell University, Ithaca, NY, USA
| | - Kai Zhao
- College of Horticulture, Yunnan Agricultural University, Kunming, China
| | - Jun-Heng Lv
- Hunan Academy of Agricultural Science, Changsha, China
| | - Jin-Long Huo
- Faculty of Animal Science and Technology, Yunnan Agricultural University, Kunming, China
| | - Zi-Ran Wang
- College of Horticulture, Yunnan Agricultural University, Kunming, China
| | - Hong-Jian Wan
- Zhejiang Academy of Agricultural Science, Hangzhou, China
| | - Hai-Shan Zhu
- College of Horticulture, Yunnan Agricultural University, Kunming, China
| | | | - Gui-Fang Shao
- College of Horticulture, Yunnan Agricultural University, Kunming, China
| | - Jiao Wang
- College of Horticulture, Yunnan Agricultural University, Kunming, China
| | - Shui Zhang
- College of Horticulture, Yunnan Agricultural University, Kunming, China
| | - Ting-Yu Yang
- College of Horticulture, Yunnan Agricultural University, Kunming, China
| | - Jing-Rou Zhang
- College of Horticulture, Yunnan Agricultural University, Kunming, China
| | - Xue-Xiao Zou
- Hunan Academy of Agricultural Science, Changsha, China
| | - Ming-Hua Deng
- College of Horticulture, Yunnan Agricultural University, Kunming, China.,College of Agriculture and Life Sciences, Cornell University, Ithaca, NY, USA
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Transcriptome and MiRNAomics Analyses Identify Genes Associated with Cytoplasmic Male Sterility in Cotton ( Gossypium hirsutum L.). Int J Mol Sci 2021; 22:ijms22094684. [PMID: 33925234 PMCID: PMC8124215 DOI: 10.3390/ijms22094684] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Revised: 04/25/2021] [Accepted: 04/26/2021] [Indexed: 11/17/2022] Open
Abstract
Cytoplasmic male sterility (CMS) is important for large-scale hybrid seed production. Rearrangements in the mitochondrial DNA (mtDNA) for the cotton (Gossypium hirsutum L.) CMS line J4A were responsible for pollen abortion. However, the expression patterns of nuclear genes associated with pollen abortion and the molecular basis of CMS for J4A are unknown, and were the objectives of this study by comparing J4A with the J4B maintainer line. Cytological evaluation of J4A anthers showed that microspore abortion occurs during meiosis preventing pollen development. Changes in enzyme activity of mitochondrial respiratory chain complex IV and mitochondrial respiratory chain complex V and the content of ribosomal protein and ATP during anther abortion were observed for J4A suggesting insufficient synthesis of ATP hindered pollen production. Additionally, levels of sucrose, starch, soluble sugar, and fructose were significantly altered in J4A during the meiosis stage, suggesting reduced sugar metabolism contributed to sterility. Transcriptome and miRNAomics analyses identified 4461 differentially expressed mRNAs (DEGs) and 26 differentially expressed microRNAs (DEMIs). Pathway enrichment analysis indicated that the DEMIs were associated with starch and sugar metabolism. Six deduced target gene regulatory pairs that may participate in CMS were identified, ghi-MIR7484-10/mitogen-activated protein kinase kinase 6 (MAPKK6), ghi-undef-156/agamous-like MADS-box protein AGL19 (AGL19), ghi-MIR171-1-22/SNF1-related protein kinase regulatory subunit gamma-1 and protein trichome birefringence-like 38, and ghi-MIR156-(8/36)/WRKY transcription factor 28 (WRKY28). Overall, a putative CMS mechanism involving mitochondrial dysfunction, the ghi-MIR7484-10/MAPKK6 network, and reduced glucose metabolism was suggested, and ghi-MIR7484-10/MAPKK6 may be related to abnormal microspore meiosis and induction of excessive sucrose accumulation in anthers.
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Singh S, Dey SS, Bhatia R, Kumar R, Behera TK. Current understanding of male sterility systems in vegetable Brassicas and their exploitation in hybrid breeding. PLANT REPRODUCTION 2019; 32:231-256. [PMID: 31053901 DOI: 10.1007/s00497-019-00371-y] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Accepted: 04/25/2019] [Indexed: 06/09/2023]
Abstract
Overview of the current status of GMS and CMS systems available in Brassica vegetables, their molecular mechanism, wild sources of sterile cytoplasm and exploitation of male sterility in hybrid breeding. The predominantly herbaceous family Brassicaceae (crucifers or mustard family) encompasses over 3700 species, and many of them are scientifically and economically important. The genus Brassica is an economically important genus within the tribe Brassicaceae that comprises important vegetable, oilseed and fodder crops. Brassica vegetables display strong hybrid vigor, and heterosis breeding is the integral part in their improvement. Commercial production of F1 hybrid seeds in Brassica vegetables requires an effective male sterility system. Among the available male sterility systems, cytoplasmic male sterility (CMS) is the most widely exploited in Brassica vegetables. This system is maternally inherited and studied intensively. A limited number of reports about the genic male sterility (GMS) are available in Brassica vegetables. The GMS system is reported to be dominant, recessive and trirecessive in nature in different species. In this review, we discuss the available male sterility systems in Brassica vegetables and their potential use in hybrid breeding. The molecular mechanism of mt-CMS and causal mitochondrial genes of CMS has been discussed in detail. Finally, the exploitation of male sterility system in heterosis breeding of Brassica vegetables, future prospects and need for further understanding of these systems are highlighted.
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Affiliation(s)
- Saurabh Singh
- Division of Vegetable Science, ICAR-Indian Agricultural Research Institute (IARI), New Delhi, 110012, India
| | - S S Dey
- Division of Vegetable Science, ICAR-Indian Agricultural Research Institute (IARI), New Delhi, 110012, India.
| | - Reeta Bhatia
- Division of Floriculture and Landscaping, ICAR-Indian Agricultural Research Institute (IARI), New Delhi, 110012, India
| | - Raj Kumar
- Division of Vegetable Science, ICAR-Indian Agricultural Research Institute (IARI), New Delhi, 110012, India
| | - T K Behera
- Division of Vegetable Science, ICAR-Indian Agricultural Research Institute (IARI), New Delhi, 110012, India
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Ding B, Hao M, Mei D, Zaman QU, Sang S, Wang H, Wang W, Fu L, Cheng H, Hu Q. Transcriptome and Hormone Comparison of Three Cytoplasmic Male Sterile Systems in Brassica napus. Int J Mol Sci 2018; 19:ijms19124022. [PMID: 30545163 PMCID: PMC6321506 DOI: 10.3390/ijms19124022] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Revised: 12/07/2018] [Accepted: 12/11/2018] [Indexed: 12/12/2022] Open
Abstract
The interaction between plant mitochondria and the nucleus markedly influences stress responses and morphological features, including growth and development. An important example of this interaction is cytoplasmic male sterility (CMS), which results in plants producing non-functional pollen. In current research work, we compared the phenotypic differences in floral buds of different Brassica napus CMS (Polima, Ogura, Nsa) lines with their corresponding maintainer lines. By comparing anther developmental stages between CMS and maintainer lines, we identified that in the Nsa CMS line abnormality occurred at the tetrad stage of pollen development. Phytohormone assays demonstrated that IAA content decreased in sterile lines as compared to maintainer lines, while the total hormone content was increased two-fold in the S2 stage compared with the S1 stage. ABA content was higher in the S1 stage and exhibited a two-fold decreasing trend in S2 stage. Sterile lines however, had increased ABA content at both stages compared with the corresponding maintainer lines. Through transcriptome sequencing, we compared differentially expressed unigenes in sterile and maintainer lines at both (S1 and S2) developmental stages. We also explored the co-expressed genes of the three sterile lines in the two stages and classified these genes by gene function. By analyzing transcriptome data and validating by RT-PCR, it was shown that some transcription factors (TFs) and hormone-related genes were weakly or not expressed in the sterile lines. This research work provides preliminary identification of the pollen abortion stage in Nsa CMS line. Our focus on genes specifically expressed in sterile lines may be useful to understand the regulation of CMS.
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Affiliation(s)
- Bingli Ding
- Key Laboratory for Biological Sciences and Genetic Improvement of Oil Crops, Ministry of Agriculture, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan 430062, China.
| | - Mengyu Hao
- Key Laboratory for Biological Sciences and Genetic Improvement of Oil Crops, Ministry of Agriculture, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan 430062, China.
| | - Desheng Mei
- Key Laboratory for Biological Sciences and Genetic Improvement of Oil Crops, Ministry of Agriculture, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan 430062, China.
| | - Qamar U Zaman
- Key Laboratory for Biological Sciences and Genetic Improvement of Oil Crops, Ministry of Agriculture, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan 430062, China.
| | - Shifei Sang
- Key Laboratory for Biological Sciences and Genetic Improvement of Oil Crops, Ministry of Agriculture, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan 430062, China.
| | - Hui Wang
- Key Laboratory for Biological Sciences and Genetic Improvement of Oil Crops, Ministry of Agriculture, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan 430062, China.
| | - Wenxiang Wang
- Key Laboratory for Biological Sciences and Genetic Improvement of Oil Crops, Ministry of Agriculture, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan 430062, China.
| | - Li Fu
- Key Laboratory for Biological Sciences and Genetic Improvement of Oil Crops, Ministry of Agriculture, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan 430062, China.
| | - Hongtao Cheng
- Key Laboratory for Biological Sciences and Genetic Improvement of Oil Crops, Ministry of Agriculture, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan 430062, China.
| | - Qiong Hu
- Key Laboratory for Biological Sciences and Genetic Improvement of Oil Crops, Ministry of Agriculture, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan 430062, China.
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Li S, Chen Z, Zhao N, Wang Y, Nie H, Hua J. The comparison of four mitochondrial genomes reveals cytoplasmic male sterility candidate genes in cotton. BMC Genomics 2018; 19:775. [PMID: 30367630 PMCID: PMC6204043 DOI: 10.1186/s12864-018-5122-y] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Accepted: 09/26/2018] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND The mitochondrial genomes of higher plants vary remarkably in size, structure and sequence content, as demonstrated by the accumulation and activity of repetitive DNA sequences. Incompatibility between mitochondrial genome and nuclear genome leads to non-functional male reproductive organs and results in cytoplasmic male sterility (CMS). CMS has been used to produce F1 hybrid seeds in a variety of plant species. RESULTS Here we compared the mitochondrial genomes (mitogenomes) of Gossypium hirsutum sterile male lines CMS-2074A and CMS-2074S, as well as their restorer and maintainer lines. First, we noticed the mitogenome organization and sequences were conserved in these lines. Second, we discovered the mitogenomes of 2074A and 2074S underwent large-scale substitutions and rearrangements. Actually, there were five and six unique chimeric open reading frames (ORFs) in 2074A and 2074S, respectively, which were derived from the recombination between unique repetitive sequences and nearby functional genes. Third, we found out four chimeric ORFs that were differentially transcribed in sterile line (2074A) and fertile-restored line. CONCLUSIONS These four novel and recombinant ORFs are potential candidates that confer CMS character in 2074A. In addition, our observations suggest that CMS in cotton is associated with the accelerated rates of rearrangement, and that novel expression products are derived from recombinant ORFs.
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Affiliation(s)
- Shuangshuang Li
- Laboratory of Cotton Genetics, Genomics and Breeding/Key Laboratory of Crop Heterosis and Utilization of Ministry of Education/Beijing Key Laboratory of Crop Genetic Improvement, College of Agronomy and Biotechnology, China Agricultural University, Beijing, 100193, China
| | - Zhiwen Chen
- Laboratory of Cotton Genetics, Genomics and Breeding/Key Laboratory of Crop Heterosis and Utilization of Ministry of Education/Beijing Key Laboratory of Crop Genetic Improvement, College of Agronomy and Biotechnology, China Agricultural University, Beijing, 100193, China
| | - Nan Zhao
- Laboratory of Cotton Genetics, Genomics and Breeding/Key Laboratory of Crop Heterosis and Utilization of Ministry of Education/Beijing Key Laboratory of Crop Genetic Improvement, College of Agronomy and Biotechnology, China Agricultural University, Beijing, 100193, China
| | - Yumei Wang
- Institute of Cash Crops, Hubei Academy of Agricultural Sciences, Wuhan, 430064, Hubei, China
| | - Hushuai Nie
- Laboratory of Cotton Genetics, Genomics and Breeding/Key Laboratory of Crop Heterosis and Utilization of Ministry of Education/Beijing Key Laboratory of Crop Genetic Improvement, College of Agronomy and Biotechnology, China Agricultural University, Beijing, 100193, China
| | - Jinping Hua
- Laboratory of Cotton Genetics, Genomics and Breeding/Key Laboratory of Crop Heterosis and Utilization of Ministry of Education/Beijing Key Laboratory of Crop Genetic Improvement, College of Agronomy and Biotechnology, China Agricultural University, Beijing, 100193, China.
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Ji J, Huang W, Yin C, Gong Z. Mitochondrial cytochrome c oxidase and F1Fo-ATPase dysfunction in peppers (Capsicum annuum L.) with cytoplasmic male sterility and its association with orf507 and Ψatp6-2 genes. Int J Mol Sci 2013; 14:1050-68. [PMID: 23296278 PMCID: PMC3565306 DOI: 10.3390/ijms14011050] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2012] [Revised: 12/13/2012] [Accepted: 12/28/2012] [Indexed: 01/01/2023] Open
Abstract
Cytoplasmic male sterility (CMS) in pepper (Capsicum annuum L.) has been associated with novel genes in the mitochondria, such as orf507 and Ψatp6-2. Plant sterility has been proved to result from the rearrangement of the mitochondrial genome. Previous studies have demonstrated that orf507 is co-transcribed with the cox II gene, and Ψatp6-2 is truncated at the 3' region of the atp6-2 that is found in the maintainer line. Until this time, little has been known about the relationship between the novel gene and the function of its corresponding enzyme in mitochondria from the CMS pepper line. Moreover, the aberrant function of the mitochondrial enzymes is seldom reported in pepper. In this study, we observed that anther abortion occurred after the tetrad stage in the CMS line (HW203A), which was accompanied by premature programmed cell death (PCD) in the tapetum. The spatiotemporal expression patterns of orf507 and Ψatp6-2 were analyzed together with the corresponding enzyme activities to investigate the interactions of the genes and mitochondrial enzymes. The two genes were both highly expressed in the anther. The orf507 was down-regulated in HW203A (CMS line), with nearly no expression in HW203B (the maintainer line). In contrast, the cytochrome c oxidase activity in HW203A showed the opposite trend, reaching its highest peak at the tetrad stage when compared with HW203B at the same stage. The Ψatp6-2 in the CMS line was also down-regulated, but it was up-regulated in the maintainer line. The corresponding F(1)F(o)-ATPase activity in the CMS line was gradually decreased along with the development of the anther, which showed the same trend for Ψatp6-2 gene expression. On the contrary, with up-regulated gene expression of atp6-2 in the maintainer line, the F(1)F(o)-ATPase activity sharply decreased after the initial development stage, but gradually increased following the tetrad stage, which was contrary to what happened in the CMS line. Taken together, all these results may provide evidence for the involvement of aberrant mitochondrial cytochrome c oxidase and F(1)F(o)-ATPase in CMS pepper anther abortion. Moreover, the novel orf507 and Ψatp6-2 genes in the mitochondria may be involved in the dysfunction of the cytochrome c oxidase and F(1)F(o)-ATPase, respectively, which are responsible for the abortion of anthers in the CMS line.
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Affiliation(s)
- Jiaojiao Ji
- College of Horticulture, Northwest A&F University, Yangling 712100, Shaanxi, China; E-Mails: (J.J.); (W.H.); (C.Y.)
| | - Wei Huang
- College of Horticulture, Northwest A&F University, Yangling 712100, Shaanxi, China; E-Mails: (J.J.); (W.H.); (C.Y.)
- State Key Laboratory for Stress Biology of Arid Region Crop, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Chuanchuan Yin
- College of Horticulture, Northwest A&F University, Yangling 712100, Shaanxi, China; E-Mails: (J.J.); (W.H.); (C.Y.)
| | - Zhenhui Gong
- College of Horticulture, Northwest A&F University, Yangling 712100, Shaanxi, China; E-Mails: (J.J.); (W.H.); (C.Y.)
- State Key Laboratory for Stress Biology of Arid Region Crop, Northwest A&F University, Yangling 712100, Shaanxi, China
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +86-029-8708-2102; Fax: +86-029-8708-2613
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Huang L, Xiang J, Liu J, Rong T, Wang J, Lu Y, Tang Q, Wen W, Cao M. Expression characterization of genes for CMS-C in maize. PROTOPLASMA 2012; 249:1119-27. [PMID: 22160189 DOI: 10.1007/s00709-011-0358-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2011] [Accepted: 11/28/2011] [Indexed: 05/25/2023]
Abstract
Cytoplasmic male sterility (CMS)-C is one of the most attractive sources of male sterility in the production of hybrid maize. However, the abortion mechanism of CMS-C is currently unknown. The major aim of this work was to characterize the expression of genes and proteins during pollen abortion. The materials assayed included CMS-C line C48-2, its maintainer line N48-2, and fertile F(1) (C48-2 × 18 white). A total of 20 unique genes and 25 proteins were identified by suppression subtractive hybridization and 2-D electrophoresis, respectively. Most of the genes and proteins identified are closely related to energy metabolism, stress responses, molecular chaperones, and cell death, which are generally considered to be essential to pollen development. Based on the function of these identified genes and proteins, reactive oxygen species in isolated mitochondria and DNA fragments were analyzed. The results from this study indicate that the oxidative stress which was associated with the specific expression patterns of some genes may be the physiological cause for the abortion of premature microspores in the maize CMS-C line.
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Affiliation(s)
- Ling Huang
- Maize Research Institute of Sichuan Agricultural University/Key Laboratory of Crop Genetic Resource and Improvement, Ministry of Education/Key Laboratory of Maize Biology and Genetic Breeding on Southwest, Ministry of Agriculture, Ya'an, 625014, Sichuan, China
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Chloroplast-located BjFer1 together with anti-oxidative genes alleviate hydrogen peroxide and hydroxyl radical injury in cytoplasmic male-sterile Brassica juncea. Mol Biol Rep 2011; 39:4169-76. [DOI: 10.1007/s11033-011-1200-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2010] [Accepted: 07/11/2011] [Indexed: 11/27/2022]
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Li Y, Nie C, Cao J. Isolation and characterization of a novel BcMF14 gene from Brassica campestris ssp. chinensis. Mol Biol Rep 2010; 38:1821-9. [PMID: 20857218 DOI: 10.1007/s11033-010-0298-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2009] [Accepted: 09/03/2010] [Indexed: 11/30/2022]
Abstract
A putative RALF (rapid alkalinization factor)-like gene (GenBank accession number EF523517), named BcMF14, was isolated from Chinese cabbage (Brassica campestris L. ssp. chinensis Makino, syn. B. rapa ssp. chinensis) by rapid amplification of cDNA ends (RACE) based on a cDNA-AFLP differential fragment exclusively expressed in fertile line. Semi-quantitative reverse transcription-polymerase chain reaction (RT-PCR) discovered that BcMF14 was prominently expressed in stage four and five flower buds of fertile line, no expression in vegetative structures or in sterility line. Detailed RT-PCR illuminated its strong expression in stamens. Successful suppression of BcMF14 gene expression greatly reduced the normal pollen grains. The frequency of abnormal pollen grains was 48.95% in the mutant with many shriveled pollen grains with irregular shape and some larger ones with deep hollows along the germination ditch. Pollen germination was stopped because of the severely twisted pollen tubes. These results demonstrate a potential role of the BcMF14 gene in the development of male gametogenesis in Chinese cabbage.
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Affiliation(s)
- Yanyan Li
- School of Life Sciences, Fuyang Teachers College, Fuyang 230032, China.
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12
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A GA-insensitive dwarf mutant of Brassica napus L. correlated with mutation in pyrimidine box in the promoter of GID1. Mol Biol Rep 2010; 38:191-7. [PMID: 20358292 DOI: 10.1007/s11033-010-0094-2] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2009] [Accepted: 03/15/2010] [Indexed: 01/22/2023]
Abstract
A dwarf mutant from Brassica napus, namely NDF-1, which was derived from a high doubled haploid (DH) line '3529'(Brassica napus L.) of which seeds were jointly treated with chemical inducers and fast neutron bombardment, was revealed that dwarfism is under the control of a major gene(designated as ndf1) with a mainly additive effect and non-significant dominance effect. The germination and hypocotyls elongation response of dwarf mutants after exogenous GA and uniconazol application showed NDF-1 was a gibberellin insensitive dwarf. We cloned the Brassica napus GID1 gene, named BnGID1, and found it was the ortholog of AtGID1a. The sequence blasting of the BnGID1 genes from NDF-1 and wild type showed there was no mutant in the gene. But the quantitative RT-PCR analysis of GID1 EST pointed out the mutation was caused by the low-level expression of BnGID1 gene. After sequenced the BnGID1 gene's upstream, we found three bases mutated in the pyrimidine box (P-box) of the BnGID1 promoter, which is linkage with the dwarf mutant.
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13
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Analysis of genetic diversity in cytoplasmic male sterility, and association of mitochondrial genes with petaloid-type cytoplasmic male sterility in tuber mustard (Brassica juncea var. tumida Tsen et Lee). Mol Biol Rep 2009; 37:1059-67. [DOI: 10.1007/s11033-009-9830-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2009] [Accepted: 09/03/2009] [Indexed: 10/20/2022]
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Li Y, Cao J. Morphological and functional characterization of BcMF13 in the antisense-silenced plants of Brassica campestris ssp. chinensis var. parachinensis. Mol Biol Rep 2008; 36:929-37. [PMID: 18592396 DOI: 10.1007/s11033-008-9265-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2008] [Accepted: 04/18/2008] [Indexed: 11/29/2022]
Abstract
The gene Brassica campestris male fertility 13 (BcMF13, GenBank accession number EF158459) was isolated as a reproductive organ-specific gene from Chinese cabbage (Brassica campestris L. ssp. chinensis Makino, syn. B. rapa ssp. chinensis). It is exclusively expressed in stage four and five flower buds of fertile lines and is most strongly expressed in stamens. Here, we report a functional characterization of this BcMF13 gene in the antisense-silenced plants. The inflorescence of the BcMF13 mutant was compacted with anthers curved outside. The fertility of this mutant was greatly reduced with less than 5 seeds per silique. Under scanning electron microscopy, the mutant demonstrated numerous shriveled pollen grains with deep invaginations. The frequency of normal pollen grains was just 45.34%. The pollen mother cell, the tetrad, and the mature pollen of the BcMF13 mutant were abnormal resulting in the poor pollen vitality. Germination test in vivo suggested BcMF13 delayed the pollen tubes' extension in the style. All these indicated BcMF13 had a vital role in pollen development of Chinese cabbage.
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Affiliation(s)
- Yanyan Li
- Laboratory of Cell & Molecular Biology, Institute of Vegetable Science, Zhejiang University, Hangzhou, China
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