Identification and characterization of PsDREB2 promoter involved in tissue-specific expression and abiotic stress response from Paeonia suffruticosa
Dehydration-responsive element-binding factor 2 (DREB2) belongs to the C-repeat-binding factor (CBF)/DREB subfamily of proteins. In this study, a 2,245 bp PsDREB2 promoter fragment was isolated from the genome of Paeonia suffruticosa. The fragment was rich in A/T bases and contained TATA box sequenc...
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PeerJ Inc.
2019-06-01
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| Online Access: | https://peerj.com/articles/7052.pdf |
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| author | Huichun Liu Kaiyuan Zhu Chen Tan Jiaqiang Zhang Jianghua Zhou Liang Jin Guangying Ma Qingcheng Zou |
| author_facet | Huichun Liu Kaiyuan Zhu Chen Tan Jiaqiang Zhang Jianghua Zhou Liang Jin Guangying Ma Qingcheng Zou |
| author_sort | Huichun Liu |
| collection | DOAJ |
| description | Dehydration-responsive element-binding factor 2 (DREB2) belongs to the C-repeat-binding factor (CBF)/DREB subfamily of proteins. In this study, a 2,245 bp PsDREB2 promoter fragment was isolated from the genome of Paeonia suffruticosa. The fragment was rich in A/T bases and contained TATA box sequences, abscisic acid (ABA)-response elements, and other cis-elements, such as MYB and CAAT box. The promoter was fused with the β-glucuronidase (GUS) reporter gene to generate an expression vector. Arabidopsis thaliana was transformed with a flower dipping method. Gus activity in different tissues and organs of transgenic plants was determined via histochemical staining and quantified via GUS fluorescence. The activity of promoter regulatory elements in transgenic plants under drought, low-temperature, high-salt, and ABA stresses was analyzed. The results showed that the PsDREB2 gene promoter was expressed in the roots, stems, leaves, flowers, and silique pods but not in the seeds of transgenic Arabidopsis. Furthermore, the promoter was induced by drought, low temperature, high salt, and ABA. Hence, the PsDREB2 promoter is tissue- and stress-specific and can be used in the genetic engineering of novel peony cultivars in the future. |
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| institution | Directory Open Access Journal |
| issn | 2167-8359 |
| language | English |
| last_indexed | 2024-03-09T06:45:46Z |
| publishDate | 2019-06-01 |
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| spelling | doaj.art-df2a8839e385436a9116daabee08a7872023-12-03T10:37:35ZengPeerJ Inc.PeerJ2167-83592019-06-017e705210.7717/peerj.7052Identification and characterization of PsDREB2 promoter involved in tissue-specific expression and abiotic stress response from Paeonia suffruticosaHuichun Liu0Kaiyuan Zhu1Chen Tan2Jiaqiang Zhang3Jianghua Zhou4Liang Jin5Guangying Ma6Qingcheng Zou7Research & Development Center of Flower, Zhejiang Academy of Agricultural Sciences, Hangzhou, ChinaResearch & Development Center of Flower, Zhejiang Academy of Agricultural Sciences, Hangzhou, ChinaResearch & Development Center of Flower, Zhejiang Academy of Agricultural Sciences, Hangzhou, ChinaResearch & Development Center of Flower, Zhejiang Academy of Agricultural Sciences, Hangzhou, ChinaResearch & Development Center of Flower, Zhejiang Academy of Agricultural Sciences, Hangzhou, ChinaResearch & Development Center of Flower, Zhejiang Academy of Agricultural Sciences, Hangzhou, ChinaResearch & Development Center of Flower, Zhejiang Academy of Agricultural Sciences, Hangzhou, ChinaResearch & Development Center of Flower, Zhejiang Academy of Agricultural Sciences, Hangzhou, ChinaDehydration-responsive element-binding factor 2 (DREB2) belongs to the C-repeat-binding factor (CBF)/DREB subfamily of proteins. In this study, a 2,245 bp PsDREB2 promoter fragment was isolated from the genome of Paeonia suffruticosa. The fragment was rich in A/T bases and contained TATA box sequences, abscisic acid (ABA)-response elements, and other cis-elements, such as MYB and CAAT box. The promoter was fused with the β-glucuronidase (GUS) reporter gene to generate an expression vector. Arabidopsis thaliana was transformed with a flower dipping method. Gus activity in different tissues and organs of transgenic plants was determined via histochemical staining and quantified via GUS fluorescence. The activity of promoter regulatory elements in transgenic plants under drought, low-temperature, high-salt, and ABA stresses was analyzed. The results showed that the PsDREB2 gene promoter was expressed in the roots, stems, leaves, flowers, and silique pods but not in the seeds of transgenic Arabidopsis. Furthermore, the promoter was induced by drought, low temperature, high salt, and ABA. Hence, the PsDREB2 promoter is tissue- and stress-specific and can be used in the genetic engineering of novel peony cultivars in the future.https://peerj.com/articles/7052.pdfPsDREB2β-glucuronidaseCis-elementStress-specificHistochemical stainingTransgenic engineering |
| spellingShingle | Huichun Liu Kaiyuan Zhu Chen Tan Jiaqiang Zhang Jianghua Zhou Liang Jin Guangying Ma Qingcheng Zou Identification and characterization of PsDREB2 promoter involved in tissue-specific expression and abiotic stress response from Paeonia suffruticosa PeerJ PsDREB2 β-glucuronidase Cis-element Stress-specific Histochemical staining Transgenic engineering |
| title | Identification and characterization of PsDREB2 promoter involved in tissue-specific expression and abiotic stress response from Paeonia suffruticosa |
| title_full | Identification and characterization of PsDREB2 promoter involved in tissue-specific expression and abiotic stress response from Paeonia suffruticosa |
| title_fullStr | Identification and characterization of PsDREB2 promoter involved in tissue-specific expression and abiotic stress response from Paeonia suffruticosa |
| title_full_unstemmed | Identification and characterization of PsDREB2 promoter involved in tissue-specific expression and abiotic stress response from Paeonia suffruticosa |
| title_short | Identification and characterization of PsDREB2 promoter involved in tissue-specific expression and abiotic stress response from Paeonia suffruticosa |
| title_sort | identification and characterization of psdreb2 promoter involved in tissue specific expression and abiotic stress response from paeonia suffruticosa |
| topic | PsDREB2 β-glucuronidase Cis-element Stress-specific Histochemical staining Transgenic engineering |
| url | https://peerj.com/articles/7052.pdf |
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