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Fábián A, Péntek BK, Soós V, Sági L. Heat stress during male meiosis impairs cytoskeletal organization, spindle assembly and tapetum degeneration in wheat. FRONTIERS IN PLANT SCIENCE 2024; 14:1314021. [PMID: 38259921 PMCID: PMC10800805 DOI: 10.3389/fpls.2023.1314021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Accepted: 12/13/2023] [Indexed: 01/24/2024]
Abstract
The significance of heat stress in agriculture is ever-increasing with the progress of global climate changes. Due to a negative effect on the yield of staple crops, including wheat, the impairment of plant reproductive development triggered by high ambient temperature became a restraint in food production. Although the heat sensitivity of male meiosis and the following gamete development in wheat has long been recognized, a detailed structural characterization combined with a comprehensive gene expression analysis has not been done about this phenomenon. We demonstrate here that heat stress severely alters the cytoskeletal configuration, triggers the failure of meiotic division in wheat. Moreover, it changes the expression of genes related to gamete development in male meiocytes and the tapetum layer in a genotype-dependent manner. 'Ellvis', a heat-tolerant winter wheat cultivar, showed high spikelet fertility rate and only scarce structural aberrations upon exposure to high temperature. In addition, heat shock genes and genes involved in scavenging reactive oxygen species were significantly upregulated in 'Ellvis', and the expression of meiosis-specific and major developmental genes showed high stability in this cultivar. In the heat-sensitive 'Mv 17-09', however, genes participating in cytoskeletal fiber nucleation, the spindle assembly checkpoint genes, and tapetum-specific developmental regulators were downregulated. These alterations may be related to the decreased cytoskeleton content, frequent micronuclei formation, and the erroneous persistence of the tapetum layer observed in the sensitive genotype. Our results suggest that understanding the heat-sensitive regulation of these gene functions would be an essential contribution to the development of new, heat-tolerant cultivars.
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Affiliation(s)
- Attila Fábián
- Centre for Agricultural Research, Hungarian Research Network, Martonvásár, Hungary
- Department of Applied Biotechnology and Food Science, Budapest University of Technology and Economics, Budapest, Hungary
- Institute of Genetics and Biotechnology, Hungarian University of Agriculture and Life Sciences, Gödöllő, Hungary
| | | | - Vilmos Soós
- Centre for Agricultural Research, Hungarian Research Network, Martonvásár, Hungary
| | - László Sági
- Centre for Agricultural Research, Hungarian Research Network, Martonvásár, Hungary
- Agribiotechnology and Precision Breeding for Food Security National Laboratory, Plant Biotechnology Section, Centre for Agricultural Research, Hungarian Research Network, Martonvásár, Hungary
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Xu L, Tang Y, Yang Y, Wang D, Wang H, Du J, Bai Y, Su S, Zhao C, Li L. Microspore-expressed SCULP1 is required for p-coumaroylation of sporopollenin, exine integrity, and pollen development in wheat. THE NEW PHYTOLOGIST 2023; 239:102-115. [PMID: 36994607 DOI: 10.1111/nph.18917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Accepted: 03/22/2023] [Indexed: 06/02/2023]
Abstract
Sporopollenin is one of the most structurally sophisticated and chemically recalcitrant biopolymers. In higher plants, sporopollenin is the dominant component of exine, the outer wall of pollen grains, and contains covalently linked phenolics that protect the male gametes from harsh environments. Although much has been learned about the biosynthesis of sporopollenin precursors in the tapetum, the nutritive cell layer surrounding developing microspores, little is known about how the biopolymer is assembled on the microspore surface. We identified SCULP1 (SKS clade universal in pollen) as a seed plant conserved clade of the multicopper oxidase family. We showed that SCULP1 in common wheat (Triticum aestivum) is specifically expressed in the microspore when sporopollenin assembly takes place, localized to the developing exine, and binds p-coumaric acid in vitro. Through genetic, biochemical, and 3D reconstruction analyses, we demonstrated that SCULP1 is required for p-coumaroylation of sporopollenin, exine integrity, and pollen viability. Moreover, we found that SCULP1 accumulation is compromised in thermosensitive genic male sterile wheat lines and its expression partially restored exine integrity and male fertility. These findings identified a key microspore protein in autonomous sporopollenin polymer assembly, thereby laying the foundation for elucidating and engineering sporopollenin biosynthesis.
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Affiliation(s)
- Lei Xu
- State Key Laboratory of Protein and Plant Gene Research, School of Advanced Agricultural Sciences, Peking University, Beijing, 100871, China
- Peking-Tsinghua Center for Life Sciences, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, 100871, China
| | - Yimiao Tang
- Beijing Academy of Agriculture and Forestry Sciences, Institute of Hybrid Wheat, Beijing, 100097, China
| | - Yanzhi Yang
- State Key Laboratory of Protein and Plant Gene Research, School of Advanced Agricultural Sciences, Peking University, Beijing, 100871, China
| | - Dezhou Wang
- Beijing Academy of Agriculture and Forestry Sciences, Institute of Hybrid Wheat, Beijing, 100097, China
| | - Haijun Wang
- State Key Laboratory of Protein and Plant Gene Research, School of Advanced Agricultural Sciences, Peking University, Beijing, 100871, China
| | - Jianmei Du
- State Key Laboratory of Protein and Plant Gene Research, School of Advanced Agricultural Sciences, Peking University, Beijing, 100871, China
- Peking-Tsinghua Center for Life Sciences, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, 100871, China
| | - Yajun Bai
- State Key Laboratory of Protein and Plant Gene Research, School of Advanced Agricultural Sciences, Peking University, Beijing, 100871, China
- Peking-Tsinghua Center for Life Sciences, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, 100871, China
| | - Shichao Su
- Beijing Academy of Agriculture and Forestry Sciences, Institute of Hybrid Wheat, Beijing, 100097, China
| | - Changping Zhao
- Beijing Academy of Agriculture and Forestry Sciences, Institute of Hybrid Wheat, Beijing, 100097, China
| | - Lei Li
- State Key Laboratory of Protein and Plant Gene Research, School of Advanced Agricultural Sciences, Peking University, Beijing, 100871, China
- Peking-Tsinghua Center for Life Sciences, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, 100871, China
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Khan AH, Min L, Ma Y, Zeeshan M, Jin S, Zhang X. High-temperature stress in crops: male sterility, yield loss and potential remedy approaches. PLANT BIOTECHNOLOGY JOURNAL 2023; 21:680-697. [PMID: 36221230 PMCID: PMC10037161 DOI: 10.1111/pbi.13946] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 10/06/2022] [Accepted: 10/10/2022] [Indexed: 05/16/2023]
Abstract
Global food security is one of the utmost essential challenges in the 21st century in providing enough food for the growing population while coping with the already stressed environment. High temperature (HT) is one of the main factors affecting plant growth, development and reproduction and causes male sterility in plants. In male reproductive tissues, metabolic changes induced by HT involve carbohydrates, lipids, hormones, epigenetics and reactive oxygen species, leading to male sterility and ultimately reducing yield. Understanding the mechanism and genes involved in these pathways during the HT stress response will provide a new path to improve crops by using molecular breeding and biotechnological approaches. Moreover, this review provides insight into male sterility and integrates this with suggested strategies to enhance crop tolerance under HT stress conditions at the reproductive stage.
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Affiliation(s)
- Aamir Hamid Khan
- National Key Laboratory of Crop Genetic Improvement & Hubei Hongshan LaboratoryHuazhong Agricultural UniversityWuhanChina
| | - Ling Min
- National Key Laboratory of Crop Genetic Improvement & Hubei Hongshan LaboratoryHuazhong Agricultural UniversityWuhanChina
| | - Yizan Ma
- National Key Laboratory of Crop Genetic Improvement & Hubei Hongshan LaboratoryHuazhong Agricultural UniversityWuhanChina
| | - Muhammad Zeeshan
- Guangxi Key Laboratory for Agro‐Environment and Agro‐Product Safety, Guangxi Colleges and Universities Key Laboratory of Crop Cultivation and Tillage, College of AgricultureGuanxi UniversityNanningChina
| | - Shuangxia Jin
- National Key Laboratory of Crop Genetic Improvement & Hubei Hongshan LaboratoryHuazhong Agricultural UniversityWuhanChina
| | - Xianlong Zhang
- National Key Laboratory of Crop Genetic Improvement & Hubei Hongshan LaboratoryHuazhong Agricultural UniversityWuhanChina
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Sun Y, Zhang D, Dong H, Wang Z, Wang J, Lv H, Guo Y, Hu S. Comparative transcriptome analysis provides insight into the important pathways and key genes related to the pollen abortion in the thermo-sensitive genic male sterile line 373S in Brassica napus L. Funct Integr Genomics 2022; 23:26. [PMID: 36576592 DOI: 10.1007/s10142-022-00943-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 12/12/2022] [Accepted: 12/13/2022] [Indexed: 12/29/2022]
Abstract
The thermo-sensitive genic male sterility (TGMS) system plays a key role in the production of two-line hybrids in rapeseed (Brassica napus). To uncover key cellular events and genetic regulation associated with TGMS, a combined study using cytological methods and RNA-sequencing analysis was conducted for the rapeseed TGMS line 373S. Cytological studies showed that microspore cytoplasm of 373S plants was condensed, the microspore nucleus was degraded at an early stage, the exine was irregular, and the tapetum developed abnormally, eventually leading to male sterility. RNA-sequencing analysis identified 430 differentially expressed genes (298 upregulated and 132 downregulated) between the fertile and sterile samples. Gene ontology analysis demonstrated that the most highly represented biological processes included sporopollenin biosynthetic process, pollen exine formation, and extracellular matrix assembly. Kyoto encyclopedia of genes and genomes analysis indicated that the enriched pathways included amino acid metabolism, carbohydrate metabolism, and lipid metabolism. Moreover, 26 transcript factors were identified, which may be associated with abnormal tapetum degeneration and exine formation. Subsequently, 19 key genes were selected, which are considered to regulate pollen development and even participate in pollen exine formation. Our results will provide important insight into the molecular mechanisms underlying TGMS in rapeseed.
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Affiliation(s)
- Yanyan Sun
- State Key Laboratory of Crop Stress Biology in Arid Areas and College of Agronomy, Northwest A&F University, Yangling, 712100, Shaanxi, China.,Soybean Research Institute, Jilin Academy of Agricultural Sciences, Changchun, 130033, China
| | - Dongsuo Zhang
- State Key Laboratory of Crop Stress Biology in Arid Areas and College of Agronomy, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Hui Dong
- State Key Laboratory of Crop Stress Biology in Arid Areas and College of Agronomy, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Zhenzhen Wang
- State Key Laboratory of Crop Stress Biology in Arid Areas and College of Agronomy, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Jing Wang
- State Key Laboratory of Crop Stress Biology in Arid Areas and College of Agronomy, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Huijie Lv
- State Key Laboratory of Crop Stress Biology in Arid Areas and College of Agronomy, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Yuan Guo
- State Key Laboratory of Crop Stress Biology in Arid Areas and College of Agronomy, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Shengwu Hu
- State Key Laboratory of Crop Stress Biology in Arid Areas and College of Agronomy, Northwest A&F University, Yangling, 712100, Shaanxi, China.
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Yang X, Wang K, Ge L, Chen X, Zhang L, Song X. Transcription factor TaGAMYB from wheat (Triticum aestivum L.) regulates flowering time and fertility in transgenic Arabidopsis thaliana. PLANTA 2022; 257:16. [PMID: 36534157 DOI: 10.1007/s00425-022-04056-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Accepted: 12/12/2022] [Indexed: 06/17/2023]
Abstract
The loss of TaGAMYB function in Arabidopsis results in abnormal pollen development and leads to decreased fertility. This process may be regulated by microRNAs, which suppress the expression of fatty acid pathway genes. Development of the anthers and pollen is significantly influenced by the transcription factor GAMYB. However, our knowledge of GAMYB in wheat is limited. Here, under fertility and sterility conditions, we identified the distinct transcripts TaGAMYB-d and TaGAMYB-g in thermosensitive genic sterile wheat YanZhan 4110S and confirmed their functions. TaGAMYB-g overexpression decreased the pollen vigor and germination rates, thereby reducing fertility. TaGAMYB-d overexpression lines exhibited early flowering. Due to aberrant pollen germination, the mutant homologous TaGAMYB genes in Arabidopsis thaliana also resulted in lower fertility. Our findings indicate that TaGAMYB controls the fertility and flowering time in transgenic Arabidopsis thaliana.
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Affiliation(s)
- Xuetong Yang
- College of Agronomy, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Kai Wang
- College of Agronomy, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Limeng Ge
- College of Agronomy, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Xianning Chen
- College of Agronomy, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Lingli Zhang
- College of Agronomy, Northwest A&F University, Yangling, 712100, Shaanxi, China.
| | - Xiyue Song
- College of Agronomy, Northwest A&F University, Yangling, 712100, Shaanxi, China.
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Liu Z, Niu F, Yuan S, Feng S, Li Y, Lu F, Zhang T, Bai J, Zhao C, Zhang L. Comparative Transcriptome Analysis Reveals Key Insights into Fertility Conversion in the Thermo-Sensitive Cytoplasmic Male Sterile Wheat. Int J Mol Sci 2022; 23:ijms232214354. [PMID: 36430832 PMCID: PMC9693999 DOI: 10.3390/ijms232214354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Revised: 10/29/2022] [Accepted: 11/16/2022] [Indexed: 11/22/2022] Open
Abstract
Thermo-sensitive cytoplasmic male sterility (TCMS) plays a crucial role in hybrid production and hybrid breeding; however, there are few studies on molecular mechanisms related to anther abortion in the wheat TCMS line. In this study, FA99, a new wheat thermo-sensitive cytoplasmic male sterility line, was investigated. Fertility conversion analysis showed that FA99 was mainly controlled by temperature, and the temperature-sensitive stage was pollen mother cell formation to a uninucleate stage. Further phenotypic identification and paraffin section showed that FA99 was characterized by indehiscent anthers and aborted pollen in a sterile environment and tapetum was degraded prematurely during the tetrad period, which was the critical abortion period of FA99. The contents of O2-, H2O2, MDA and POD were significantly changed in FA99 under a sterile environment by the determination of physiological indexes. Furthermore, through transcriptome analysis, 252 differentially expressed genes were identified, including 218 downregulated and 34 upregulated genes. Based on KOG function classification, GO enrichment and KEGG pathways analysis, it was evident that significant transcriptomic changes in FA99 under different fertility environments, and the major differences were "phenylalanine metabolism", "phenylpropanoid biosynthesis", "cutin, suberine and wax biosynthesis", "phenylalanine, tyrosine and tryptophan biosynthesis" and "citrate cycle (TCA cycle)". Finally, we proposed an intriguing transcriptome-mediated pollen abortion and male sterility network for FA99. These findings provided data on the molecular mechanism of fertility conversion in thermo-sensitive cytoplasmic male sterility wheat.
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Affiliation(s)
- Zihan Liu
- Beijing Key Laboratory of Molecular Genetics in Hybrid Wheat, Institute of Hybrid Wheat Beijing Academy of Agriculture and Forestry Science, Beijing 100097, China
| | - Fuqiang Niu
- Beijing Key Laboratory of Molecular Genetics in Hybrid Wheat, Institute of Hybrid Wheat Beijing Academy of Agriculture and Forestry Science, Beijing 100097, China
- College of Agronomy, Northwest A&F University, Xianyang 712100, China
| | - Shaohua Yuan
- Beijing Key Laboratory of Molecular Genetics in Hybrid Wheat, Institute of Hybrid Wheat Beijing Academy of Agriculture and Forestry Science, Beijing 100097, China
| | - Shuying Feng
- Blue Red Hybrid Wheat Research Center, Xianyang 044000, China
| | - Yanmei Li
- Beijing Key Laboratory of Molecular Genetics in Hybrid Wheat, Institute of Hybrid Wheat Beijing Academy of Agriculture and Forestry Science, Beijing 100097, China
| | - Fengkun Lu
- Beijing Key Laboratory of Molecular Genetics in Hybrid Wheat, Institute of Hybrid Wheat Beijing Academy of Agriculture and Forestry Science, Beijing 100097, China
| | - Tianbao Zhang
- Beijing Key Laboratory of Molecular Genetics in Hybrid Wheat, Institute of Hybrid Wheat Beijing Academy of Agriculture and Forestry Science, Beijing 100097, China
| | - Jianfang Bai
- Beijing Key Laboratory of Molecular Genetics in Hybrid Wheat, Institute of Hybrid Wheat Beijing Academy of Agriculture and Forestry Science, Beijing 100097, China
| | - Changping Zhao
- Beijing Key Laboratory of Molecular Genetics in Hybrid Wheat, Institute of Hybrid Wheat Beijing Academy of Agriculture and Forestry Science, Beijing 100097, China
- Correspondence: (C.Z.); (L.Z.)
| | - Liping Zhang
- Beijing Key Laboratory of Molecular Genetics in Hybrid Wheat, Institute of Hybrid Wheat Beijing Academy of Agriculture and Forestry Science, Beijing 100097, China
- Correspondence: (C.Z.); (L.Z.)
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Yang X, Wang K, Bu Y, Niu F, Ge L, Zhang L, Song X. The transcription factor TaGAMYB modulates tapetum and pollen development of TGMS wheat YanZhan 4110S via the gibberellin signaling. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2022; 324:111447. [PMID: 36041563 DOI: 10.1016/j.plantsci.2022.111447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 08/19/2022] [Accepted: 08/24/2022] [Indexed: 06/15/2023]
Abstract
Male reproductive development in higher plants experienced a series of complex biological processes, which can be regulated by Gibberellins (GA). The transcriptional factor GAMYB is a crucial component of GA signaling in anther development. However, the mechanism of GAMYB in wheat male reproduction is less understood. Here, we found that the thermo-sensitive genic male sterilitywheat line YanZhan 4110S displayed delayed tapetum programmed cell death and pollen abortive under the hot temperature stress. Combined with RNA-Sequencing data analysis, TaGAMYB associated with fertility conversion was isolated, which was located in the nucleus and highly expressed in fertility anthers. The silencing of TaGAMYB in wheat displayed fertility decline, defects in tapetum, pollen and exine formation, where the abortion characteristics were the same as YanZhan 4110S. In addition, either hot temperature or GA3 treatment in YanZhan 4110S caused the downregulation of TaGAMYB at binucleate stage and trinucleate stage, as well as fertility decrease. Further, the transcription factor TaWRKY2 significantly changed under GA3-treatment and directly interacted with the TaGAMYB promoter by W-box cis-element. Therefore, we suggested that TaGAMYB may be essential for anther development and male fertility, and GA3 activates TaGAMYB by TaWRKY2 to regulate fertility in wheat.
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Affiliation(s)
- Xuetong Yang
- College of Agronomy, Northwest A&F University, Yangling 712100 Shaanxi, China.
| | - Kai Wang
- College of Agronomy, Northwest A&F University, Yangling 712100 Shaanxi, China.
| | - Yaning Bu
- College of Agronomy, Northwest A&F University, Yangling 712100 Shaanxi, China.
| | - Fuqiang Niu
- College of Agronomy, Northwest A&F University, Yangling 712100 Shaanxi, China.
| | - Limeng Ge
- College of Agronomy, Northwest A&F University, Yangling 712100 Shaanxi, China.
| | - Lingli Zhang
- College of Agronomy, Northwest A&F University, Yangling 712100 Shaanxi, China.
| | - Xiyue Song
- College of Agronomy, Northwest A&F University, Yangling 712100 Shaanxi, China.
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Zhao S, Gou B, Wang Y, Yang N, Duan P, Wei M, Zhang G, Wei B. Identification and relative expression analysis of CaFRK gene family in pepper. 3 Biotech 2022; 12:137. [PMID: 35646505 PMCID: PMC9130412 DOI: 10.1007/s13205-022-03196-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Accepted: 04/29/2022] [Indexed: 02/02/2023] Open
Abstract
Fructokinase is the main catalytic enzyme for fructose phosphorylation and can also act as a glucose receptor and signal molecule to regulate the metabolism of plants, which plays an important role in plant growth and development. In this study, the CaFRK gene family and their molecular characteristics are systematically identified and analyzed, and the specific expression of CaFRKs under different tissues, abiotic stresses and hormone treatments were explored. Nine FRK genes were authenticated in pepper genome database, which were dispersedly distributed on eight reference chromosomes and predicted to localize in the cytoplasm. Many cis-acting elements that respond to light, different stresses, hormones and tissue-specific expression were found in the promoters of CaFRKs. FRK proteins of four species including Capsicum annuum, Arabidopsis thaliana, Solanum lycopersicum and Oryza sativa were divided into four groups via phylogenetic analysis. The collinearity analysis showed that there were two collinear gene pairs between CaFRKs and AtFRKs. In addition, it was significantly found that CaFRK9 expressed far higher in flower than other tissues, and the relative expression of CaFRK9 was gradually enhanced with the development of flower buds in fertile accessions, 8B, R1 and F1. Nevertheless, CaFRK9 hardly expressed in all stages of cytoplasmic male sterile lines. Based on the quantitative real-time PCR, most of CaFRK genes showed significant up-regulation under low-temperature, NaCl and PEG6000 treatments. On the contrary, the expression levels of most CaFRKs revealed a various trend in response to hormone treatments (IAA, ABA, GA3, SA and MeJA). This study systematically analyzed CaFRK gene family and studied its expression pattern, which lay the foundation of CaFRK genes cloning and functional verification response to abiotic stresses, and provides new insights into exploring the CaFRK genes on the pollen development in pepper. Supplementary Information The online version contains supplementary material available at 10.1007/s13205-022-03196-1.
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Affiliation(s)
- Shufang Zhao
- College of Horticulture, Gansu Agricultural University, Lanzhou, 730070 China
| | - Bingdiao Gou
- College of Horticulture, Gansu Agricultural University, Lanzhou, 730070 China
| | - Yongfu Wang
- College of Horticulture, Gansu Agricultural University, Lanzhou, 730070 China
| | - Nan Yang
- College of Horticulture, Gansu Agricultural University, Lanzhou, 730070 China
| | - Panpan Duan
- College of Horticulture, Gansu Agricultural University, Lanzhou, 730070 China
| | - Min Wei
- College of Horticulture, Gansu Agricultural University, Lanzhou, 730070 China
| | - Gaoyuan Zhang
- College of Horticulture, Gansu Agricultural University, Lanzhou, 730070 China
| | - Bingqiang Wei
- College of Horticulture, Gansu Agricultural University, Lanzhou, 730070 China
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Pei H, Xie H, Wang X, Yan X, Wang B, Feng H, Zhao Y, Gao J, Gao J. Proteomic analysis of differential anther development from sterile/fertile lines in Capsicum annuum L. PeerJ 2022; 10:e13168. [PMID: 35651745 PMCID: PMC9150696 DOI: 10.7717/peerj.13168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Accepted: 03/04/2022] [Indexed: 01/13/2023] Open
Abstract
Background Pepper (Capsicum annuum L.) is a major cash crop throughout the world. Male sterility is an important characteristic in crop species that leads to a failure to produce functional pollen, and it has crucial roles in agricultural breeding and the utilization of heterosis. Objectives In this study, we identified many crucial factors and important components in metabolic pathways in anther and pollen development, and elucidated the molecular mechanism related to pollen abortion in pepper. Methods Pepper pollen was observed at different stages to detect the characteristics associated with male sterility and fertility. The phytohormone and oxidoreductase activities were detected in spectrophotometric and redox reaction assays, respectively. Proteins were extracted from male sterile and fertile pepper lines, and identified by TMT/iTRAQ (tandem mass tags/isobaric tags for relative and absolute quantitation) and LC-MS/MS (liquid chromatograph-mass spectrometer) analysis. Differentially abundant proteins (DAPs) were analyzed based on Gene Ontology annotations and the Kyoto Encyclopedia of Genes and Genomes database according to |fold change)| > 1.3 and P value < 0.05. DAPs were quantified in the meiosis, tetrad, and binucleate stages by parallel reaction monitoring (PRM). Results In this study, we screened and identified one male sterile pepper line with abnormal cytological characteristics in terms of pollen development. The peroxidase and catalase enzyme activities were significantly reduced and increased, respectively, in the male sterile line compared with the male fertile line. Phytohormone analysis demonstrated that the gibberellin, jasmonic acid, and auxin contents changed by different extents in the male sterile pepper line. Proteome analysis screened 1,645 DAPs in six clusters, which were mainly associated with the chloroplast and cytoplasm based on their similar expression levels. According to proteome analysis, 45 DAPs were quantitatively identified in the meiosis, tetrad, and binucleate stages by PRM, which were related to monoterpenoid biosynthesis, and starch and sucrose metabolism pathways. Conclusions We screened 1,645 DAPs by proteomic analysis and 45 DAPs were related to anther and pollen development in a male sterile pepper line. In addition, the activities of peroxidase and catalase as well as the abundances of phytohormones such as gibberellin, jasmonic acid, and auxin were related to male sterility. The results obtained in this study provide insights into the molecular mechanism responsible for male sterility and fertility in pepper.
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Affiliation(s)
- Hongxia Pei
- College of Horticulture, Xinjiang Agricultural University, Urumqi, China,Institute of Horticulture Crops, Ningxia Academy of Agriculture and Forestry Sciences, Yinchuan, China
| | - Hua Xie
- Institute of Horticulture Crops, Ningxia Academy of Agriculture and Forestry Sciences, Yinchuan, China
| | - Xuemei Wang
- Institute of Horticulture Crops, Ningxia Academy of Agriculture and Forestry Sciences, Yinchuan, China
| | - Xiujuan Yan
- Institute of Horticulture Crops, Ningxia Academy of Agriculture and Forestry Sciences, Yinchuan, China
| | - Baike Wang
- Institute of Horticulture Crops, Xinjiang Academy of Agricultural Sciences, Urumqi, China
| | - Haiping Feng
- Institute of Horticulture Crops, Ningxia Academy of Agriculture and Forestry Sciences, Yinchuan, China
| | - Yunxia Zhao
- Institute of Horticulture Crops, Ningxia Academy of Agriculture and Forestry Sciences, Yinchuan, China
| | - Jingxia Gao
- Institute of Horticulture Crops, Ningxia Academy of Agriculture and Forestry Sciences, Yinchuan, China
| | - Jie Gao
- College of Horticulture, Xinjiang Agricultural University, Urumqi, China
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10
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Sun Y, Fu M, Ang Y, Zhu L, Wei L, He Y, Zeng H. Combined analysis of transcriptome and metabolome reveals that sugar, lipid, and phenylpropane metabolism are essential for male fertility in temperature-induced male sterile rice. FRONTIERS IN PLANT SCIENCE 2022; 13:945105. [PMID: 35968120 PMCID: PMC9370067 DOI: 10.3389/fpls.2022.945105] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Accepted: 06/28/2022] [Indexed: 05/16/2023]
Abstract
Photoperiod- and thermosensitive genic male sterility (PTGMS) rice is a vital germplasm resource consisting of two-line hybrid rice in which light and temperature strictly control their fertility changes. Variable environmental conditions present huge risks to the two-lines hybrid seed production. Explaining the regulatory mechanism of male fertility in rice PTGMS lines is an essential prerequisite to ensuring food security production. A group of near-isogenic lines (NILs) of a rice PTGMS line unique to this research group was used for this study. These lines have the same genetic background and regulate male fertility by responding to different temperature changes. Transcriptomic analysis revealed that 315 upregulated genes and 391 regulated genes regulated male fertility in response to temperature changes, and differentially expressed genes (DEGs) were mainly characterized in enrichment analysis as having roles in the metabolic pathways of sugar, lipid and phenylpropanoid. Electron microscopy analysis revealed that a lack of starch accumulation in sterile pollen grains induced by high temperature, with an abnormal exine development and a lack of inner pollen grains. Defective processes for sporopollenin synthesis, sporopollenin transport and pollen wall formation in sterile anthers were verified using qPCR. Targeted metabolomics analysis revealed that most lipids (phospholipids, sphingolipids and fatty acids) and flavonoids (flavones and flavanones) were upregulated in fertile anthers and involved in pollen wall development and male fertility formation, while lignin G units and C-type lignin were the major contributors to pollen wall development. The coding genes for trehalose 6-phosphate phosphatase, beta-1,3-glucanase, phospholipase D and 4-coumarate-CoA ligase are considered essential regulators in the process of male fertility formation. In conclusion, our results indicated that the expression of critical genes and accumulation of metabolites in the metabolism of sugar, lipid, and phenylpropanoid are essential for male fertility formation. The results provide new insights for addressing the negative effects of environmental variation on two-line hybrid rice production.
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Affiliation(s)
- Yujun Sun
- MOA Key Laboratory of Crop Ecophysiology and Farming System in the Middle Reaches of the Yangtze River, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Ming Fu
- MOA Key Laboratory of Crop Ecophysiology and Farming System in the Middle Reaches of the Yangtze River, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Yina Ang
- MOA Key Laboratory of Crop Ecophysiology and Farming System in the Middle Reaches of the Yangtze River, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Lan Zhu
- MOA Key Laboratory of Crop Ecophysiology and Farming System in the Middle Reaches of the Yangtze River, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, China
- Center of Crop Nanobiotechnology, Huazhong Agricultural University, Wuhan, China
| | - Linan Wei
- MOA Key Laboratory of Crop Ecophysiology and Farming System in the Middle Reaches of the Yangtze River, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Ying He
- MOA Key Laboratory of Crop Ecophysiology and Farming System in the Middle Reaches of the Yangtze River, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, China
- Center of Crop Nanobiotechnology, Huazhong Agricultural University, Wuhan, China
- *Correspondence: Ying He,
| | - Hanlai Zeng
- MOA Key Laboratory of Crop Ecophysiology and Farming System in the Middle Reaches of the Yangtze River, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, China
- Hanlai Zeng,
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Liu H, Sun Z, Hu L, Yue Z. Genome-wide identification of PIP5K in wheat and its relationship with anther male sterility induced by high temperature. BMC PLANT BIOLOGY 2021; 21:598. [PMID: 34915841 PMCID: PMC8675513 DOI: 10.1186/s12870-021-03363-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/14/2021] [Accepted: 11/24/2021] [Indexed: 06/14/2023]
Abstract
BACKGROUND Phosphatidylinositol 4 phosphate 5-kinase (PIP5K) plays a key enzyme role in the inositol signal transduction system and has essential functions in plants in terms of growth, development, and stress responses. However, systematic studies on the wheat PIP5K gene family and its relation to male sterility have not been reported yet. RESULTS Sixty-four TaPIP5K genes were identified. The TaPIP5K genes contained similar gene structures and conserved motifs on the same branches of the evolutionary tree, and their cis-regulatory elements were related to MeJA-responsiveness. Furthermore, 49 pairs of collinearity genes were identified and mainly subjected to purification selection during evolution. Synteny analyses showed that some PIP5K genes in wheat and the other four species shared a relatively conserved evolutionary process. The expression levels of many conservative TaPIP5K genes in HT-ms anthers were significantly lower than that in Normal anthers. In addition, HT-ms anthers have no dehiscence, and levels of OPDA and JA-ILE are significantly lower at the trinucleus stage. CONCLUSION These results indicate that the PIP5K gene family may be associated with male sterility induced by HT, and the reduction of JA-ILE levels and the abnormal levels of these genes expression may be one reason for the HT-ms anthers having no dehiscence, ultimately leading to the abortion of the anthers.
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Affiliation(s)
- Hongzhan Liu
- College of Life Science and Agronomy, Zhoukou Normal University, Zhoukou, 466001, Henan Province, P.R. China.
| | - Zhongke Sun
- College of Life Science and Agronomy, Zhoukou Normal University, Zhoukou, 466001, Henan Province, P.R. China.
| | - Lizong Hu
- College of Life Science and Agronomy, Zhoukou Normal University, Zhoukou, 466001, Henan Province, P.R. China
| | - Zonghao Yue
- College of Life Science and Agronomy, Zhoukou Normal University, Zhoukou, 466001, Henan Province, P.R. China
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Yang X, Ye J, Niu F, Feng Y, Song X. Identification and verification of genes related to pollen development and male sterility induced by high temperature in the thermo-sensitive genic male sterile wheat line. PLANTA 2021; 253:83. [PMID: 33770279 DOI: 10.1007/s00425-021-03601-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Accepted: 03/18/2021] [Indexed: 06/12/2023]
Abstract
Bioinformatic analysis identified the function of genes regulating wheat fertility. Barley stripe mosaic virus-induced gene silencing verified that the genes TaMut11 and TaSF3 are involved in pollen development and related to fertility conversion. Environment-sensitive genic male sterility is of vital importance to hybrid vigor in crop production and breeding. Therefore, it is meaningful to study the function of the genes related to pollen development and male sterility, which is still not fully understand currently. In this study, YanZhan 4110S, a new thermo-sensitive genic male sterility wheat line, and its near-isogenic line YanZhan 4110 were analyzed. Through comparative transcriptome basic bioinformatics and weighted gene co-expression network to further identify some hub genes, the genes TaMut11 and TaSF3 associated with pollen development and male sterility induced by high-temperature were identified in YanZhan 4110S. Further verification through barley stripe mosaic virus-induced gene silencing elucidated that the silencing of TaMut11 and TaSF3 caused pollen abortion, finally resulting in the declination of fertility. These findings provided data on the abortive mechanism in environment-sensitive genic male sterility wheat.
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Affiliation(s)
- Xuetong Yang
- College of Agronomy, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Jiali Ye
- College of Agronomy, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Fuqiang Niu
- College of Agronomy, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Yi Feng
- College of Agronomy, Northwest A&F University, Yangling, 712100, Shaanxi, China.
| | - Xiyue Song
- College of Agronomy, Northwest A&F University, Yangling, 712100, Shaanxi, China.
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Reactive Oxygen Species Accumulation Strongly Allied with Genetic Male Sterility Convertible to Cytoplasmic Male Sterility in Kenaf. Int J Mol Sci 2021; 22:ijms22031107. [PMID: 33498664 PMCID: PMC7866071 DOI: 10.3390/ijms22031107] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Revised: 01/16/2021] [Accepted: 01/19/2021] [Indexed: 11/17/2022] Open
Abstract
Male sterility (MS) plays a key role in the hybrid breed production of plants. Researchers have focused on the association between genetic male sterility (GMS) and cytoplasmic male sterility (CMS) in kenaf. In this study, P9BS (a natural GMS mutant of the kenaf line P9B) and male plants of P9B were used as parents in multiple backcross generations to produce P9SA, a CMS line with stable sterility, to explore the molecular mechanisms of the association between GMS and CMS. The anthers of the maintainer (P9B), GMS (P9BS), and CMS (P9SA) lines were compared through phenotypic, cell morphological, physiological, biochemical observations, and transcriptome analysis. Premature degradation of the tapetum was observed at the mononuclear stage in P9BS and P9SA, which also had lower activity of reactive oxygen species (ROS) scavenging enzymes compared with P9B. Many coexpressed differentially expressed genes were related to ROS balance, including ATP synthase, electron chain transfer, and ROS scavenging processes were upregulated in P9B. CMS plants had a higher ROS accumulation than GMS plants. The MDA content in P9SA was 3.2 times that of P9BS, and therefore, a higher degree of abortion occurred in P9SA, which may indicate that the conversion between CMS and GMS is related to intracellular ROS accumulation. Our study adds new insights into the natural transformation of GMS and CMS in plants in general and kenaf in particular.
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