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Starkevič P, Ražanskienė A, Starkevič U, Kazanavičiūtė V, Denkovskienė E, Bendokas V, Šikšnianas T, Rugienius R, Stanys V, Ražanskas R. Isolation and Analysis of Anthocyanin Pathway Genes from Ribes Genus Reveals MYB Gene with Potent Anthocyanin-Inducing Capabilities. Plants (Basel) 2020; 9:plants9091078. [PMID: 32842576 PMCID: PMC7570362 DOI: 10.3390/plants9091078] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 08/19/2020] [Accepted: 08/19/2020] [Indexed: 01/29/2023]
Abstract
Horticultural crops of the Ribes genus are valued for their anthocyanin-rich fruits, but until now, there were no data about the genes and regulation of their flavonoid pathway. In this study, the coding sequences of flavonoid pathway enzymes and their putative regulators MYB10, bHLH3 and WD40 were isolated, and their expression analyzed in fruits with varying anthocyanin levels from different cultivars of four species belonging to the Ribes genus. Transcription levels of anthocyanin synthesis enzymes and the regulatory gene RrMYB10 correlated with fruit coloration and anthocyanin quantities of different Ribes cultivars. Regulatory genes were tested for the ability to modulate anthocyanin biosynthesis during transient expression in the leaves of two Nicotiana species and to activate Prunus avium promoters of late anthocyanin biosynthesis genes in N. tabacum. Functional tests showed a strong capability of RrMyb10 to induce anthocyanin synthesis in a heterologous system, even without the concurrent expression of any heterologous bHLH, whereas RrbHLH3 enhanced MYB-induced anthocyanin synthesis. Data obtained in this work facilitate further analysis of the anthocyanin synthesis pathway in key Ribes species, and potent anthocyanin inducer RrMyb10 can be used to manipulate anthocyanin expression in heterologous systems.
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Affiliation(s)
- Pavel Starkevič
- Department of Eukaryotic Gene Engineering, Institute of Biotechnology, Vilnius University, 10257 Vilnius, Lithuania; (P.S.); (A.R.); (U.S.); (V.K.); (E.D.)
- Nature Research Centre, Akademijos str. 2, 08412 Vilnius, Lithuania
| | - Aušra Ražanskienė
- Department of Eukaryotic Gene Engineering, Institute of Biotechnology, Vilnius University, 10257 Vilnius, Lithuania; (P.S.); (A.R.); (U.S.); (V.K.); (E.D.)
| | - Urtė Starkevič
- Department of Eukaryotic Gene Engineering, Institute of Biotechnology, Vilnius University, 10257 Vilnius, Lithuania; (P.S.); (A.R.); (U.S.); (V.K.); (E.D.)
| | - Vaiva Kazanavičiūtė
- Department of Eukaryotic Gene Engineering, Institute of Biotechnology, Vilnius University, 10257 Vilnius, Lithuania; (P.S.); (A.R.); (U.S.); (V.K.); (E.D.)
| | - Erna Denkovskienė
- Department of Eukaryotic Gene Engineering, Institute of Biotechnology, Vilnius University, 10257 Vilnius, Lithuania; (P.S.); (A.R.); (U.S.); (V.K.); (E.D.)
| | - Vidmantas Bendokas
- Department of Orchard Plant Genetics and Biotechnology, Institute of Horticulture, Lithuanian Research Centre for Agriculture and Forestry, 54333 Babtai, Lithuania; (V.B.); (T.Š.); (R.R.); (V.S.)
| | - Tadeušas Šikšnianas
- Department of Orchard Plant Genetics and Biotechnology, Institute of Horticulture, Lithuanian Research Centre for Agriculture and Forestry, 54333 Babtai, Lithuania; (V.B.); (T.Š.); (R.R.); (V.S.)
| | - Rytis Rugienius
- Department of Orchard Plant Genetics and Biotechnology, Institute of Horticulture, Lithuanian Research Centre for Agriculture and Forestry, 54333 Babtai, Lithuania; (V.B.); (T.Š.); (R.R.); (V.S.)
| | - Vidmantas Stanys
- Department of Orchard Plant Genetics and Biotechnology, Institute of Horticulture, Lithuanian Research Centre for Agriculture and Forestry, 54333 Babtai, Lithuania; (V.B.); (T.Š.); (R.R.); (V.S.)
| | - Raimundas Ražanskas
- Department of Eukaryotic Gene Engineering, Institute of Biotechnology, Vilnius University, 10257 Vilnius, Lithuania; (P.S.); (A.R.); (U.S.); (V.K.); (E.D.)
- Correspondence:
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Starkevič P, Paukštytė J, Kazanavičiūtė V, Denkovskienė E, Stanys V, Bendokas V, Šikšnianas T, Ražanskienė A, Ražanskas R. Expression and Anthocyanin Biosynthesis-Modulating Potential of Sweet Cherry (Prunus avium L.) MYB10 and bHLH Genes. PLoS One 2015; 10:e0126991. [PMID: 25978735 PMCID: PMC4433224 DOI: 10.1371/journal.pone.0126991] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2014] [Accepted: 04/09/2015] [Indexed: 11/29/2022] Open
Abstract
Anthocyanins are essential contributors to fruit coloration, an important quality feature and a breed determining trait of a sweet cherry fruit. It is well established that the biosynthesis of anthocyanins is regulated by an interplay of specific transcription factors belonging to MYB and bHLH families accompanied by a WD40 protein. In this study, we isolated and analyzed PaWD40, PabHLH3, PabHLH33, and several closely related MYB10 gene variants from different cultivars of sweet cherry, analyzed their expression in fruits with different anthocyanin levels at several developmental stages, and determined their capabilities to modulate anthocyanin synthesis in leaves of two Nicotiana species. Our results indicate that transcription level of variant PaMYB10.1-1 correlates with fruit coloration, but anthocyanin synthesis in Nicotiana was induced by another variant, PaMYB10.1-3, which is moderately expressed in fruits. The analysis of two fruit-expressed bHLH genes revealed that PabHLH3 enhances MYB-induced anthocyanin synthesis, whereas PabHLH33 has strong inhibitory properties.
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Affiliation(s)
- Pavel Starkevič
- Vilnius University Institute of Biotechnology, V.A. Graičiūno 8, Vilnius, LT-02241, Lithuania
| | - Jurgita Paukštytė
- Vilnius University Institute of Biotechnology, V.A. Graičiūno 8, Vilnius, LT-02241, Lithuania
| | - Vaiva Kazanavičiūtė
- Vilnius University Institute of Biotechnology, V.A. Graičiūno 8, Vilnius, LT-02241, Lithuania
| | - Erna Denkovskienė
- Vilnius University Institute of Biotechnology, V.A. Graičiūno 8, Vilnius, LT-02241, Lithuania
| | - Vidmantas Stanys
- Institute of Horticulture, Lithuanian Research Centre for Agriculture and Forestry, Kaunas st 30, Babtai, LT-54333, Kaunas, Lithuania
| | - Vidmantas Bendokas
- Institute of Horticulture, Lithuanian Research Centre for Agriculture and Forestry, Kaunas st 30, Babtai, LT-54333, Kaunas, Lithuania
| | - Tadeušas Šikšnianas
- Institute of Horticulture, Lithuanian Research Centre for Agriculture and Forestry, Kaunas st 30, Babtai, LT-54333, Kaunas, Lithuania
| | - Aušra Ražanskienė
- Vilnius University Institute of Biotechnology, V.A. Graičiūno 8, Vilnius, LT-02241, Lithuania
| | - Raimundas Ražanskas
- Vilnius University Institute of Biotechnology, V.A. Graičiūno 8, Vilnius, LT-02241, Lithuania
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