1
|
Zhang X, Xu J, Si L, Cao K, Wang Y, Li H, Wang J. Cloning, Identification, and Functional Analysis of the Chalcone Isomerase Gene from Astragalus sinicus. Genes (Basel) 2023; 14:1400. [PMID: 37510305 PMCID: PMC10379301 DOI: 10.3390/genes14071400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 06/29/2023] [Accepted: 07/03/2023] [Indexed: 07/30/2023] Open
Abstract
Astragalus sinicus is an important winter-growing cover crop. It is widely utilized, not only as a cover crop for its benefits in fertilizing the soil but also as a landscape ground cover plant. Anthocyanins are involved in the pigmentation of plants in leaves and flowers, which is a crucial characteristic trait for A. sinicus. The formation of anthocyanins depends significantly on the enzyme chalcone isomerase (CHI). However, research on the CHI gene of A. sinicus remains unexplored. The rapid amplification of cDNA ends (RACE) approach was used in this research to clone the CHI sequence from A. sinicus (AsiCHI). The expression profiles of the AsiCHI gene in multiple tissues of A. sinicus were subsequently examined by qRT-PCR (Quantitative Real-Time PCR). Furthermore, the function of the AsiCHI was identified by the performance of ectopic expression in Arabidopsis (Arabidopsis thaliana). The outcomes revealed that the full-length cDNA of the AsiCHI gene (GeneBank: OQ870547) measured 972 bp in length and included an open reading frame of 660 bp. The encoded protein contains 219 amino acids with a molecular weight of 24.14 kDa and a theoretical isoelectric point of 5.11. In addition, the remarkable similarity between the AsiCHI protein and the CHI proteins of other Astragalus species was demonstrated by the sequence alignment and phylogenetic analysis. Moreover, the highest expression level of AsiCHI was observed in leaves and showed a positive correlation with anthocyanin content. The functional analysis further revealed that the overexpression of AsiCHI enhanced the anthocyanidin accumulation in the transgenic lines. This study provided a better understanding of AsiCHI and elucidated its role in anthocyanin production.
Collapse
Affiliation(s)
- Xian Zhang
- Institute of Environment, Resource, Soil and Fertilizer, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Jing Xu
- Institute of Environment, Resource, Soil and Fertilizer, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Linlin Si
- Institute of Environment, Resource, Soil and Fertilizer, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Kai Cao
- Institute of Environment, Resource, Soil and Fertilizer, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Yuge Wang
- College of Science, Northeastern University, Boston, MA 02115, USA;
| | - Hua Li
- Institute of Environment, Resource, Soil and Fertilizer, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Jianhong Wang
- Institute of Environment, Resource, Soil and Fertilizer, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| |
Collapse
|
2
|
Negi S, Madari S, Tak H, Bhakta S, Ganapathi TR. Studies on the tissue specific nature and stress inducible activation of the CHI-1 gene from banana. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2021; 168:62-69. [PMID: 34619599 DOI: 10.1016/j.plaphy.2021.10.005] [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: 07/16/2021] [Revised: 09/30/2021] [Accepted: 10/01/2021] [Indexed: 06/13/2023]
Abstract
In the present study, the 5'-regulatory region of chalcone isomerase gene (MusaCHI-1) of banana was functionally analysed for its tissue specific, stress mediated and strong guard cell preferred activity. Expression of MusaCHI-1 was altered in leaves of banana plants exposed to various stress conditions and signalling molecules. Transgenic lines of tobacco harbouring PMusaCHI-1-GUS displays prominent GUS staining in vascular region and guard cells of leaves which corroborates with array of Dof1 binding cis-elements in PMusaCHI-1 region. Multiple cis-elements associated with various stress conditions were detected in PMusaCHI-1 which directly correlates with alteration of MusaCHI-1 transcript level in banana exposed to stress conditions. GUS staining of transgenic tobacco plants harbouring PMusaCHI-1-GUS and exposed to drought, salinity, and applications of methyl jasmonate and abscisic acid indicated activation of PMusaCHI-1 under these conditions while exposure of salicylic acid strongly suppresses GUS expression from PMusaCHI-1.
Collapse
Affiliation(s)
- Sanjana Negi
- Department of Biotechnology, University of Mumbai, Mumbai, 400098, India
| | - Steffi Madari
- Department of Biotechnology, University of Mumbai, Mumbai, 400098, India
| | - Himanshu Tak
- Plant Cell Culture Technology Section, Nuclear Agriculture and Biotechnology Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India; Homi Bhabha National Institute, Anushakti Nagar, Mumbai, 400094, India.
| | - Subham Bhakta
- Plant Cell Culture Technology Section, Nuclear Agriculture and Biotechnology Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India
| | - T R Ganapathi
- Plant Cell Culture Technology Section, Nuclear Agriculture and Biotechnology Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India; Homi Bhabha National Institute, Anushakti Nagar, Mumbai, 400094, India
| |
Collapse
|
3
|
Adaptive Evolution of Chalcone Isomerase Superfamily in Fagaceae. Biochem Genet 2020; 59:491-505. [PMID: 33135088 DOI: 10.1007/s10528-020-10012-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Accepted: 10/23/2020] [Indexed: 10/23/2022]
Abstract
Chalcone Isomerase (CHI) catalyzes the biosynthesis of flavonoids and secondary metabolism in plants. Currently, there is no systematic analysis of CHIs gene family in Fagaceae which is available. In this study, twenty-two CHI proteins were identified in five species of the Fagaceae family. The CHI superfamily in Fagaceae can be classified into three subfamilies and five groups using phylogenetic analysis, analysis of physicochemical properties, and structural prediction. Results indicated that serine (Ser) and isoleucine (Ile) residues determine the substrate preferred by active Type I Fagaceae CHI, and the chalcone isomerase-like (CHIL) of Fagaceae had active site residues. Adaptive analysis of CHIs showed that CHIs are subject to selection pressure. The active CHI gene of Fagaceae was located in the cytoplasm, and it had the typical gene structure of CHI and contains four exons. All the twenty-two identified CHIs had the conserved domain motif 3, and the different groups had their own structural characteristics. In the process of fatty acid binding protein (FAP) evolution to CHIL and CHI, the physical and chemical properties of proteins also had significant differences in addition to changes in protein functions.
Collapse
|
4
|
Zhan X, Luo X, He J, Zhang C, Liao X, Xu X, Feng S, Yu C, Jiang Z, Meng Y, Shen C, Wang H, Lu J. Bioactive compounds induced in Physalis angulata L. by methyl-jasmonate: an investigation of compound accumulation patterns and biosynthesis-related candidate genes. PLANT MOLECULAR BIOLOGY 2020; 103:341-354. [PMID: 32227258 DOI: 10.1007/s11103-020-00996-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Accepted: 03/09/2020] [Indexed: 05/14/2023]
Abstract
We employed both metabolomic and transcriptomic approaches to explore the accumulation patterns of physalins, flavonoids and chlorogenic acid in Physalis angulata and revealed the genes associated with the biosynthesis of bioactive compounds under methyl-jasmonate (MeJA) treatment. Physalis angulata L. is an annual Solanaceae plant with a number of medicinally active compounds. Despite the potential pharmacological benefits of P. angulata, the scarce genomic information regarding this plant has limited the studies on the mechanisms of bioactive compound biosynthesis. To facilitate the basic understanding of the main chemical constituent biosynthesis pathways, we performed both metabolomic and transcriptomic approaches to reveal the genes associated with the biosynthesis of bioactive compounds under methyl-jasmonate (MeJA) treatment. Untargeted metabolome analysis showed that most physalins, flavonoids and chlorogenic acid were significantly upregulated. Targeted HPLC-MS/MS analysis confirmed variations in the contents of two important representative steroid derivatives (physalins B and G), total flavonoids, neochlorogenic acid, and chlorogenic acid between MeJA-treated plants and controls. Transcript levels of a few steroid biosynthesis-, flavonoid biosynthesis-, and chlorogenic acid biosynthesis-related genes were upregulated, providing a potential explanation for MeJA-induced active ingredient synthesis in P. angulata. Systematic correlation analysis identified a number of novel candidate genes associated with bioactive compound biosynthesis. These results may help to elucidate the regulatory mechanism underlying MeJA-induced active compound accumulation and provide several valuable candidate genes for further functional study.
Collapse
Affiliation(s)
- Xiaori Zhan
- College of Life and Environmental Science, Hangzhou Normal University, Hangzhou, 310036, China
- Zhejiang Provincial Key Laboratory for Genetic Improvement and Quality Control of Medicinal Plants, Hangzhou Normal University, Hangzhou, 310036, China
| | - Xiujun Luo
- College of Life and Environmental Science, Hangzhou Normal University, Hangzhou, 310036, China
- Zhejiang Provincial Key Laboratory for Genetic Improvement and Quality Control of Medicinal Plants, Hangzhou Normal University, Hangzhou, 310036, China
| | - Jinyu He
- College of Life and Environmental Science, Hangzhou Normal University, Hangzhou, 310036, China
- Zhejiang Provincial Key Laboratory for Genetic Improvement and Quality Control of Medicinal Plants, Hangzhou Normal University, Hangzhou, 310036, China
| | - Chengchao Zhang
- College of Life and Environmental Science, Hangzhou Normal University, Hangzhou, 310036, China
- Zhejiang Provincial Key Laboratory for Genetic Improvement and Quality Control of Medicinal Plants, Hangzhou Normal University, Hangzhou, 310036, China
| | - Xinyue Liao
- College of Life and Environmental Science, Hangzhou Normal University, Hangzhou, 310036, China
- Zhejiang Provincial Key Laboratory for Genetic Improvement and Quality Control of Medicinal Plants, Hangzhou Normal University, Hangzhou, 310036, China
| | - Xinyun Xu
- College of Life and Environmental Science, Hangzhou Normal University, Hangzhou, 310036, China
- Zhejiang Provincial Key Laboratory for Genetic Improvement and Quality Control of Medicinal Plants, Hangzhou Normal University, Hangzhou, 310036, China
| | - Shangguo Feng
- College of Life and Environmental Science, Hangzhou Normal University, Hangzhou, 310036, China
- Zhejiang Provincial Key Laboratory for Genetic Improvement and Quality Control of Medicinal Plants, Hangzhou Normal University, Hangzhou, 310036, China
| | - Chunna Yu
- College of Life and Environmental Science, Hangzhou Normal University, Hangzhou, 310036, China
- Zhejiang Provincial Key Laboratory for Genetic Improvement and Quality Control of Medicinal Plants, Hangzhou Normal University, Hangzhou, 310036, China
| | - Zhifang Jiang
- College of Life and Environmental Science, Hangzhou Normal University, Hangzhou, 310036, China
- Zhejiang Provincial Key Laboratory for Genetic Improvement and Quality Control of Medicinal Plants, Hangzhou Normal University, Hangzhou, 310036, China
| | - Yijun Meng
- College of Life and Environmental Science, Hangzhou Normal University, Hangzhou, 310036, China
- Zhejiang Provincial Key Laboratory for Genetic Improvement and Quality Control of Medicinal Plants, Hangzhou Normal University, Hangzhou, 310036, China
| | - Chenjia Shen
- College of Life and Environmental Science, Hangzhou Normal University, Hangzhou, 310036, China
- Zhejiang Provincial Key Laboratory for Genetic Improvement and Quality Control of Medicinal Plants, Hangzhou Normal University, Hangzhou, 310036, China
| | - Huizhong Wang
- College of Life and Environmental Science, Hangzhou Normal University, Hangzhou, 310036, China.
- Zhejiang Provincial Key Laboratory for Genetic Improvement and Quality Control of Medicinal Plants, Hangzhou Normal University, Hangzhou, 310036, China.
| | - Jiangjie Lu
- College of Life and Environmental Science, Hangzhou Normal University, Hangzhou, 310036, China.
- Zhejiang Provincial Key Laboratory for Genetic Improvement and Quality Control of Medicinal Plants, Hangzhou Normal University, Hangzhou, 310036, China.
- State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Chinese Academy of Sciences, Nanxincun 20, Xiangshan, Beijing, 100093, China.
| |
Collapse
|