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Zhao Y, Sun Y, Huang S, Liu Z, Feng H. Identification of an anther-specific promoter from a male sterile AB line in Chinese cabbage ( Brassica rapa L. ssp. pekinensis). 3 Biotech 2022; 12:104. [PMID: 35463043 PMCID: PMC8971320 DOI: 10.1007/s13205-022-03160-z] [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: 09/02/2021] [Accepted: 03/05/2022] [Indexed: 11/30/2022] Open
Abstract
The promoter of the male sterile gene is important for studying male sterility. In this study, BraA08g014780.3C which differentially expressed between male sterile and fertile plants was identified from a genetic male sterile AB line of Chinese cabbage by RNA-seq. qRT-PCR revealed that BraA08g014780.3C was mainly expressed in the early stage of floral bud development in fertile plants, and preferentially expressed in their anthers. The promoter of BraA08g014780.3C was cloned and analyzed. Cis acting element analysis showed that the promoter of BraA08g014780.3C contains POLLEN1LELAT52 and GTGANTG10, which are both pollen-specific expression elements. The BraA08g014780.3Cp::GUS vector was constructed, then transformed to Arabidopsis thaliana Col-0. PCR analysis and sequencing of the transgenic Arabidopsis revealed that the GUS gene driven by the BraA08g014780.3C promoter was successfully transformed to the Arabidopsis. GUS staining indicated that the promoter of BraA08g014780.3C was an anther-specific promoter. Identifying the anther-specific promoter laid a foundation for revealing BraA08g014780.3C function in male sterility of Chinese cabbage. Supplementary Information The online version contains supplementary material available at 10.1007/s13205-022-03160-z.
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Affiliation(s)
- Ying Zhao
- College of Horticulture, Shenyang Agricultural University, Shenyang, China
| | - Ying Sun
- College of Horticulture, Shenyang Agricultural University, Shenyang, China
| | - Shengnan Huang
- College of Horticulture, Shenyang Agricultural University, Shenyang, China
| | - Zhiyong Liu
- College of Horticulture, Shenyang Agricultural University, Shenyang, China
| | - Hui Feng
- College of Horticulture, Shenyang Agricultural University, Shenyang, China
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Ding X, Yin Z, Wang S, Liu H, Chu X, Liu J, Zhao H, Wang X, Li Y, Ding X. Different Fruit-Specific Promoters Drive AtMYB12 Expression to Improve Phenylpropanoid Accumulation in Tomato. Molecules 2022; 27:molecules27010317. [PMID: 35011551 PMCID: PMC8746655 DOI: 10.3390/molecules27010317] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 12/30/2021] [Accepted: 12/31/2021] [Indexed: 02/01/2023] Open
Abstract
Tomato is an economically crucial vegetable/fruit crop globally. Tomato is rich in nutrition and plays an essential role in a healthy human diet. Phenylpropanoid, a critical compound in tomatoes, reduces common degenerative and chronic diseases risk caused by oxidative stress. As an MYB transcription factor, ATMYB12 can increase phenylpropanoid content by activating phenylpropanoid synthesis related genes, such as PAL, C4H, 4CL, CHS. However, the heterologous expression of AtMYB12 in tomatoes can be altered through transgenic technologies, such as unstable expression vectors and promoters with different efficiency. In the current study, the efficiency of other fruit-specific promoters, namely E8S, 2A12, E4, and PG, were compared and screened, and we determined that the expression efficiency of AtMYB12 was driven by the E8S promoter was the highest. As a result, the expression of phenylpropanoid synthesis related genes was regulated by AtMYB12, and the phenylpropanoid accumulation in transgenic tomato fruits increased 16 times. Additionally, the total antioxidant capacity of fruits was measured through Trolox equivalent antioxidant capacity (TEAC) assay, which was increased by 2.4 times in E8S transgenic lines. TEAC was positively correlated with phenylpropanoid content. Since phenylpropanoid plays a crucial role in the human diet, expressing AtMYB12 with stable and effective fruit-specific promoter E8S could improve tomato’s phenylpropanoid and nutrition content and quality. Our results can provide genetic resources for the subsequent improvement of tomato varieties and quality, which is significant for human health.
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Affiliation(s)
- Xiangyu Ding
- State Key Laboratory of Crop Biology, Shandong Provincial Key Laboratory of Agricultural Microbiology, College of Plant Protection, Shandong Agricultural University, Tai’an 271018, China; (X.D.); (Z.Y.); (H.L.); (X.C.); (J.L.); (H.Z.); (X.W.)
| | - Ziyi Yin
- State Key Laboratory of Crop Biology, Shandong Provincial Key Laboratory of Agricultural Microbiology, College of Plant Protection, Shandong Agricultural University, Tai’an 271018, China; (X.D.); (Z.Y.); (H.L.); (X.C.); (J.L.); (H.Z.); (X.W.)
| | - Shaoli Wang
- Yantai Academy of Agricultural Sciences, Yantai 265500, China;
| | - Haoqi Liu
- State Key Laboratory of Crop Biology, Shandong Provincial Key Laboratory of Agricultural Microbiology, College of Plant Protection, Shandong Agricultural University, Tai’an 271018, China; (X.D.); (Z.Y.); (H.L.); (X.C.); (J.L.); (H.Z.); (X.W.)
| | - Xiaomeng Chu
- State Key Laboratory of Crop Biology, Shandong Provincial Key Laboratory of Agricultural Microbiology, College of Plant Protection, Shandong Agricultural University, Tai’an 271018, China; (X.D.); (Z.Y.); (H.L.); (X.C.); (J.L.); (H.Z.); (X.W.)
| | - Jiazong Liu
- State Key Laboratory of Crop Biology, Shandong Provincial Key Laboratory of Agricultural Microbiology, College of Plant Protection, Shandong Agricultural University, Tai’an 271018, China; (X.D.); (Z.Y.); (H.L.); (X.C.); (J.L.); (H.Z.); (X.W.)
| | - Haipeng Zhao
- State Key Laboratory of Crop Biology, Shandong Provincial Key Laboratory of Agricultural Microbiology, College of Plant Protection, Shandong Agricultural University, Tai’an 271018, China; (X.D.); (Z.Y.); (H.L.); (X.C.); (J.L.); (H.Z.); (X.W.)
| | - Xinyu Wang
- State Key Laboratory of Crop Biology, Shandong Provincial Key Laboratory of Agricultural Microbiology, College of Plant Protection, Shandong Agricultural University, Tai’an 271018, China; (X.D.); (Z.Y.); (H.L.); (X.C.); (J.L.); (H.Z.); (X.W.)
| | - Yang Li
- State Key Laboratory of Crop Biology, Shandong Provincial Key Laboratory of Agricultural Microbiology, College of Plant Protection, Shandong Agricultural University, Tai’an 271018, China; (X.D.); (Z.Y.); (H.L.); (X.C.); (J.L.); (H.Z.); (X.W.)
- Correspondence: (Y.L.); (X.D.)
| | - Xinhua Ding
- State Key Laboratory of Crop Biology, Shandong Provincial Key Laboratory of Agricultural Microbiology, College of Plant Protection, Shandong Agricultural University, Tai’an 271018, China; (X.D.); (Z.Y.); (H.L.); (X.C.); (J.L.); (H.Z.); (X.W.)
- Correspondence: (Y.L.); (X.D.)
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Wang H, Fan M, Wang G, Zhang C, Shi L, Wei Z, Ma W, Chang J, Huang S, Lin F. Isolation and characterization of a novel pollen-specific promoter in maize (Zea mays L.). Genome 2017; 60:485-495. [PMID: 28177828 DOI: 10.1139/gen-2016-0089] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
ZmSTK2_USP, located on the long arm of chromosome 4, belongs to the serine/threonine kinase gene in maize. The sequence analysis of 2100 bp upstream from the start codon ATG has shown that it contains cis-element motifs and two types of anther/pollen-specific promoter elements (GTGA and AGAAA), suggesting that it is the pollen-specific promoter. To investigate the function of ZmSTK2_USP promoter, the GUS gene fusion system was employed. In proZmSTK2_USP-GUS genetically modified plants, GUS activity was detected in mature pollen grains and pollen tubes but not found in other floral and vegetative tissues. These results show that proZmSTK2_USP is the pollen-specific promoter and drives pollen-specific activity during the middle stage of pollen development until pollen maturation.
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Affiliation(s)
- He Wang
- a Agronomy College, Shenyang Agricultural University, No. 120 Dongling Road, Shenyang, Liaoning 110866, China.,b Biotechnology and Bioscience College, Shenyang Agricultural University, No. 120 Dongling Road, Shenyang, Liaoning 110866, China.,c Corn Research Institute, Liaoning Academy of Agricultural Sciences, No. 84 Dongling Road, Shenyang, Liaoning 110866, China
| | - Mingxia Fan
- a Agronomy College, Shenyang Agricultural University, No. 120 Dongling Road, Shenyang, Liaoning 110866, China.,b Biotechnology and Bioscience College, Shenyang Agricultural University, No. 120 Dongling Road, Shenyang, Liaoning 110866, China
| | - Guohong Wang
- c Corn Research Institute, Liaoning Academy of Agricultural Sciences, No. 84 Dongling Road, Shenyang, Liaoning 110866, China
| | - Chunyu Zhang
- b Biotechnology and Bioscience College, Shenyang Agricultural University, No. 120 Dongling Road, Shenyang, Liaoning 110866, China
| | - Lei Shi
- c Corn Research Institute, Liaoning Academy of Agricultural Sciences, No. 84 Dongling Road, Shenyang, Liaoning 110866, China
| | - Zhengyi Wei
- d Laboratory of Plant Bioreactor and Genetics Engineering, Jilin Provincial Key Laboratory of Agricultural Biotechnology, Agro-Biotechnology Research Institute, Jilin Academy of Agricultural Sciences, No. 1363 Shengtai St., Changchun 130033, China
| | - Wenjuan Ma
- b Biotechnology and Bioscience College, Shenyang Agricultural University, No. 120 Dongling Road, Shenyang, Liaoning 110866, China
| | - Jing Chang
- b Biotechnology and Bioscience College, Shenyang Agricultural University, No. 120 Dongling Road, Shenyang, Liaoning 110866, China
| | - Senxin Huang
- b Biotechnology and Bioscience College, Shenyang Agricultural University, No. 120 Dongling Road, Shenyang, Liaoning 110866, China
| | - Feng Lin
- b Biotechnology and Bioscience College, Shenyang Agricultural University, No. 120 Dongling Road, Shenyang, Liaoning 110866, China
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Singer SD, Liu Z, Cox KD. Minimizing the unpredictability of transgene expression in plants: the role of genetic insulators. PLANT CELL REPORTS 2012; 31:13-25. [PMID: 21987122 DOI: 10.1007/s00299-011-1167-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2011] [Accepted: 09/27/2011] [Indexed: 05/20/2023]
Abstract
The genetic transformation of plants has become a necessary tool for fundamental plant biology research, as well as the generation of engineered plants exhibiting improved agronomic and industrial traits. However, this technology is significantly hindered by the fact that transgene expression is often highly variable amongst independent transgenic lines. Two of the major contributing factors to this type of inconsistency are inappropriate enhancer-promoter interactions and chromosomal position effects, which frequently result in mis-expression or silencing of the transgene, respectively. Since the precise, often tissue-specific, expression of the transgene(s) of interest is often a necessity for the successful generation of transgenic plants, these undesirable side effects have the potential to pose a major challenge for the genetic engineering of these organisms. In this review, we discuss strategies for improving foreign gene expression in plants via the inclusion of enhancer-blocking insulators, which function to impede enhancer-promoter communication, and barrier insulators, which block the spread of heterochromatin, in transgenic constructs. While a complete understanding of these elements remains elusive, recent studies regarding their use in genetically engineered plants indicate that they hold great promise for the improvement of transgene expression, and thus the future of plant biotechnology.
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Affiliation(s)
- Stacy D Singer
- Department of Plant Pathology and Plant-Microbe Biology, New York State Agricultural Experiment Station, Cornell University, Geneva, NY 14456, USA
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Fruit-specific expression of sweet protein Brazzein in transgenic tomato plants. YI CHUAN = HEREDITAS 2009; 31:663-7. [DOI: 10.3724/sp.j.1005.2009.00663] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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