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Li Z, Liu D, Wang D, Sun M, Zhang G, Wu Y, Zhang Y, Cheng B. Study on the causes of changes in colour during Hibiscus syriacus flowering based on transcriptome and metabolome analyses. BMC PLANT BIOLOGY 2024; 24:431. [PMID: 38773421 PMCID: PMC11107057 DOI: 10.1186/s12870-024-05142-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Accepted: 05/13/2024] [Indexed: 05/23/2024]
Abstract
BACKGROUND The flower colour of H. syriacus 'Qiansiban' transitions from fuchsia to pink-purple and finally to pale purple, thereby enhancing the ornamental value of the cultivars. However, the molecular mechanism underlying this change in flower colour in H. syriacus has not been elucidated. In this study, the transcriptomic data of H. syriacus 'Qiansiban' at five developmental stages were analysed to investigate the impact of flavonoid components on flower colour variation. Additionally, five cDNA libraries were constructed from H. syriacus 'Qiansiban' during critical blooming stages, and the transcriptomes were sequenced to investigate the molecular mechanisms underlying changes in flower colouration. RESULTS High-performance liquid chromatography‒mass spectrometry detected five anthocyanins in H. syriacus 'Qiansiban', with malvaccin-3-O-glucoside being the predominant compound in the flowers of H. syriacus at different stages, followed by petunigenin-3-O-glucoside. The levels of these five anthocyanins exhibited gradual declines throughout the flowering process. In terms of the composition and profile of flavonoids and flavonols, a total of seven flavonoids were identified: quercetin-3-glucoside, luteolin-7-O-glucoside, Santianol-7-O-glucoside, kaempferol-O-hexosyl-C-hexarbonoside, apigenin-C-diglucoside, luteolin-3,7-diglucoside, and apigenin-7-O-rutinoside. A total of 2,702 DEGs were identified based on the selected reference genome. Based on the enrichment analysis of differentially expressed genes, we identified 9 structural genes (PAL, CHS, FLS, DRF, ANS, CHI, F3H, F3'5'H, and UFGT) and 7 transcription factors (3 MYB, 4 bHLH) associated with flavonoid biosynthesis. The qRT‒PCR results were in good agreement with the high-throughput sequencing data. CONCLUSION This study will establish a fundamental basis for elucidating the mechanisms underlying alterations in the flower pigmentation of H. syriacus.
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Affiliation(s)
- Zhezhe Li
- Hebei Normal University of Science & Technology, Qinhuangdao, 066004, Hebei Province, China
- Hebei Key Laboratory of Horticultural Germplasm Excavation and Innovative Utilization, Qinghuangdao, 066004, Hebe Province, China
- Hebei Higher Institute Application Technology Research and Development Center of Horticultural Plant Biological Breeding, Hebei Normal University of Science & Technology, Qinhuangdao Hebei Province, Qinhuangdao, 066004, Hebe Province, China
| | - Dan Liu
- Shandong Provincial Forest and Grass Germplasm Resources Center, Jinan, 250102, Shangdong Province, China
| | - Dongsheng Wang
- Hebei Normal University of Science & Technology, Qinhuangdao, 066004, Hebei Province, China
- Hebei Key Laboratory of Horticultural Germplasm Excavation and Innovative Utilization, Qinghuangdao, 066004, Hebe Province, China
- Hebei Higher Institute Application Technology Research and Development Center of Horticultural Plant Biological Breeding, Hebei Normal University of Science & Technology, Qinhuangdao Hebei Province, Qinhuangdao, 066004, Hebe Province, China
| | - Meng Sun
- Hebei Normal University of Science & Technology, Qinhuangdao, 066004, Hebei Province, China
- Hebei Key Laboratory of Horticultural Germplasm Excavation and Innovative Utilization, Qinghuangdao, 066004, Hebe Province, China
| | - Guojun Zhang
- Hebei Normal University of Science & Technology, Qinhuangdao, 066004, Hebei Province, China
- Hebei Key Laboratory of Horticultural Germplasm Excavation and Innovative Utilization, Qinghuangdao, 066004, Hebe Province, China
- Hebei Higher Institute Application Technology Research and Development Center of Horticultural Plant Biological Breeding, Hebei Normal University of Science & Technology, Qinhuangdao Hebei Province, Qinhuangdao, 066004, Hebe Province, China
| | - Yu Wu
- Hebei Normal University of Science & Technology, Qinhuangdao, 066004, Hebei Province, China
- Hebei Key Laboratory of Horticultural Germplasm Excavation and Innovative Utilization, Qinghuangdao, 066004, Hebe Province, China
| | - Yidan Zhang
- Hebei Normal University of Science & Technology, Qinhuangdao, 066004, Hebei Province, China
- Hebei Key Laboratory of Horticultural Germplasm Excavation and Innovative Utilization, Qinghuangdao, 066004, Hebe Province, China
| | - Beibei Cheng
- Hebei Normal University of Science & Technology, Qinhuangdao, 066004, Hebei Province, China.
- Hebei Key Laboratory of Horticultural Germplasm Excavation and Innovative Utilization, Qinghuangdao, 066004, Hebe Province, China.
- Hebei Higher Institute Application Technology Research and Development Center of Horticultural Plant Biological Breeding, Hebei Normal University of Science & Technology, Qinhuangdao Hebei Province, Qinhuangdao, 066004, Hebe Province, China.
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Hussain K, Bhat ZY, Yadav AK, Singh D, Ashraf N. CstPIF4 Integrates Temperature and Circadian Signals and Interacts with CstMYB16 to Repress Anthocyanins in Crocus. PLANT & CELL PHYSIOLOGY 2023; 64:1407-1418. [PMID: 37705247 DOI: 10.1093/pcp/pcad108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 09/01/2023] [Accepted: 09/08/2023] [Indexed: 09/15/2023]
Abstract
Crocus sativus has emerged as an important crop because it is the only commercial source of saffron that contains unique apocarotenoids. Saffron is composed of dried stigmas of Crocus flower and constitutes the most priced spice of the world. Crocus floral organs are dominated by different classes of metabolites. While stigmas are characterized by the presence of apocarotenoids, tepals are rich in flavonoids and anthocyanins. Therefore, an intricate regulatory network might play a role in allowing different compounds to dominate in different organs. Work so far done on Crocus is focussed on apocarotenoid metabolism and its regulation. There are no reports describing the regulation of flavonoids and anthocyanins in Crocus tepals. In this context, we identified an R2R3 transcription factor, CstMYB16, which resembles subgroup 4 (SG4) repressors of Arabidopsis. CstMYB16 is nuclear localized and acts as a repressor. Overexpression of CstMYB16 in Crocus downregulated anthocyanin biosynthesis. The C2/EAR motif was responsible for the repressor activity of CstMYB16. CstMYB16 binds to the promoter of the anthocyanin biosynthetic pathway gene (LDOX) and reduces its expression. CstMYB16 also physically interacts with CstPIF4, which in turn is regulated by temperature and circadian clock. Thus, CstPIF4 integrates these signals and forms a repressor complex with CstMYB16, which is involved in the negative regulation of anthocyanin biosynthesis in Crocus. Independent of CstPIF4, CstMYB16 also represses CstPAP1 expression, which is a component of the MYB-bHLH-WD40 (MBW) complex and positively controls anthocyanin biosynthesis. This is the first report on identifying and describing regulators of anthocyanin biosynthesis in Crocus.
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Affiliation(s)
- Khadim Hussain
- Plant Molecular Biology and Biotechnology Division, CSIR-Indian Institute of Integrative Medicine, Sanat Nagar, Srinagar, Jammu and Kashmir 190005, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201002, India
| | - Zahid Yaqoob Bhat
- Plant Molecular Biology and Biotechnology Division, CSIR-Indian Institute of Integrative Medicine, Sanat Nagar, Srinagar, Jammu and Kashmir 190005, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201002, India
| | - Arvind Kumar Yadav
- Quality Control & Quality Assurance Lab, Quality, Management & Instrumentation Division, CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu Tawi 180001, India
| | - Deepika Singh
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201002, India
- Quality Control & Quality Assurance Lab, Quality, Management & Instrumentation Division, CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu Tawi 180001, India
| | - Nasheeman Ashraf
- Plant Molecular Biology and Biotechnology Division, CSIR-Indian Institute of Integrative Medicine, Sanat Nagar, Srinagar, Jammu and Kashmir 190005, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201002, India
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Sun P, Yang C, Zhu W, Wu J, Lin X, Wang Y, Zhu J, Chen C, Zhou K, Qian M, Shen J. Metabolome, Plant Hormone, and Transcriptome Analyses Reveal the Mechanism of Spatial Accumulation Pattern of Anthocyanins in Peach Flesh. Foods 2023; 12:2297. [PMID: 37372513 DOI: 10.3390/foods12122297] [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: 04/05/2023] [Revised: 06/04/2023] [Accepted: 06/05/2023] [Indexed: 06/29/2023] Open
Abstract
Anthocyanins are important secondary metabolites in fruits, and anthocyanin accumulation in the flesh of peach exhibits a spatial pattern, but the relevant mechanism is still unknown. In this study, the yellow-fleshed peach, cv. 'Jinxiu', with anthocyanin accumulation in the mesocarp around the stone was used as the experimental material. Red flesh (RF) and yellow flesh (YF) were sampled separately for flavonoid metabolite (mainly anthocyanins), plant hormone, and transcriptome analyses. The results showed that the red coloration in the mesocarp was due to the accumulation of cyanidin-3-O-glucoside, with an up-regulation of anthocyanin biosynthetic genes (F3H, F3'H, DFR, and ANS), transportation gene GST, and regulatory genes (MYB10.1 and bHLH3). Eleven ERFs, nine WRKYs, and eight NACs were also defined as the candidate regulators of anthocyanin biosynthesis in peach via RNA-seq. Auxin, cytokinin, abscisic acid (ABA), salicylic acid (SA), and 1-aminocyclopropane-1-carboxylic acid (ACC, ethylene precursor) were enriched in the peach flesh, with auxin, cytokinin, ACC, and SA being highly accumulated in the RF, but ABA was mainly distributed in the YF. The activators and repressors in the auxin and cytokinin signaling transduction pathways were mostly up-regulated and down-regulated, respectively. Our results provide new insights into the regulation of spatial accumulation pattern of anthocyanins in peach flesh.
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Affiliation(s)
- Ping Sun
- Jinhua Academy of Agricultural Sciences (Zhejiang Institute of Agricultural Machinery), Jinhua 321000, China
| | - Chengkun Yang
- Sanya Nanfan Research Institute of Hainan University, Sanya 572025, China
- Key Laboratory of Quality Regulation of Tropical Horticultural Crop in Hainan Province, Department of Horticulture, School of Horticulture, Haidian Campus, Hainan University, Haikou 570228, China
| | - Wencan Zhu
- Sanya Nanfan Research Institute of Hainan University, Sanya 572025, China
- Key Laboratory of Quality Regulation of Tropical Horticultural Crop in Hainan Province, Department of Horticulture, School of Horticulture, Haidian Campus, Hainan University, Haikou 570228, China
| | - Jiaqi Wu
- Jinhua Academy of Agricultural Sciences (Zhejiang Institute of Agricultural Machinery), Jinhua 321000, China
| | - Xianrui Lin
- Jinhua Academy of Agricultural Sciences (Zhejiang Institute of Agricultural Machinery), Jinhua 321000, China
| | - Yi Wang
- Jinhua Academy of Agricultural Sciences (Zhejiang Institute of Agricultural Machinery), Jinhua 321000, China
| | - Jianxi Zhu
- Jinhua Academy of Agricultural Sciences (Zhejiang Institute of Agricultural Machinery), Jinhua 321000, China
| | - Chenfei Chen
- Jinhua Academy of Agricultural Sciences (Zhejiang Institute of Agricultural Machinery), Jinhua 321000, China
| | - Kaibing Zhou
- Sanya Nanfan Research Institute of Hainan University, Sanya 572025, China
- Key Laboratory of Quality Regulation of Tropical Horticultural Crop in Hainan Province, Department of Horticulture, School of Horticulture, Haidian Campus, Hainan University, Haikou 570228, China
| | - Minjie Qian
- Sanya Nanfan Research Institute of Hainan University, Sanya 572025, China
- Key Laboratory of Quality Regulation of Tropical Horticultural Crop in Hainan Province, Department of Horticulture, School of Horticulture, Haidian Campus, Hainan University, Haikou 570228, China
| | - Jiansheng Shen
- Jinhua Academy of Agricultural Sciences (Zhejiang Institute of Agricultural Machinery), Jinhua 321000, China
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Zhao L, Zhang Y, Sun J, Yang Q, Cai Y, Zhao C, Wang F, He H, Han Y. PpHY5 is involved in anthocyanin coloration in the peach flesh surrounding the stone. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2023; 114:951-964. [PMID: 36919360 DOI: 10.1111/tpj.16189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Revised: 02/28/2023] [Accepted: 03/09/2023] [Indexed: 05/27/2023]
Abstract
Red coloration around the stone (Cs) is an important trait of canned peaches (Prunus persica). In this study, an elongated hypocotyl 5 gene in peach termed PpHY5 was identified to participate in the regulation of the Cs trait. The E3 ubiquitin ligase PpCOP1 was expressed in the flesh around the stone and could interact with PpHY5. Although HY5 is known to be degraded by COP1 in darkness, the PpHY5 gene was activated in the flesh tissue surrounding the stone at the ripening stages and its expression was consistent with anthocyanin accumulation. PpHY5 was able to promote the transcription of PpMYB10.1 through interacting with its partner PpBBX10. Silencing of PpHY5 in the flesh around the stone caused a reduction in anthocyanin pigmentation, while transient overexpression of PpHY5 and PpBBX10 resulted in anthocyanin accumulation in peach fruits. Moreover, transgenic Arabidopsis seedlings overexpressing PpHY5 showed increased anthocyanin accumulation in leaves. Our results improve our understanding of the mechanisms of anthocyanin coloration in plants.
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Affiliation(s)
- Lei Zhao
- CAS Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, The Innovative Academy of Seed Design of Chinese Academy of Sciences, Wuhan, Botanical Garden, Wuhan, 430074, China
- Hubei Hongshan Laboratory, Wuhan, 430070, China
| | - Yuanqiang Zhang
- CAS Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, The Innovative Academy of Seed Design of Chinese Academy of Sciences, Wuhan, Botanical Garden, Wuhan, 430074, China
- University of Chinese Academy of Sciences, 19A Yuquanlu, Beijing, 100049, China
| | - Juanli Sun
- CAS Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, The Innovative Academy of Seed Design of Chinese Academy of Sciences, Wuhan, Botanical Garden, Wuhan, 430074, China
- University of Chinese Academy of Sciences, 19A Yuquanlu, Beijing, 100049, China
| | - Qiurui Yang
- CAS Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, The Innovative Academy of Seed Design of Chinese Academy of Sciences, Wuhan, Botanical Garden, Wuhan, 430074, China
- University of Chinese Academy of Sciences, 19A Yuquanlu, Beijing, 100049, China
| | - Yaming Cai
- CAS Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, The Innovative Academy of Seed Design of Chinese Academy of Sciences, Wuhan, Botanical Garden, Wuhan, 430074, China
- University of Chinese Academy of Sciences, 19A Yuquanlu, Beijing, 100049, China
| | - Caiping Zhao
- College of horticulture, Northwest Agriculture and Forestry University, Yangling, 712100, China
| | - Furong Wang
- Institute of Fruit Tree and Tea, Hubei Academy of Agricultural Sciences, Wuhan, 430209, China
| | - Huaping He
- Institute of Fruit Tree and Tea, Hubei Academy of Agricultural Sciences, Wuhan, 430209, China
| | - Yuepeng Han
- CAS Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, The Innovative Academy of Seed Design of Chinese Academy of Sciences, Wuhan, Botanical Garden, Wuhan, 430074, China
- Hubei Hongshan Laboratory, Wuhan, 430070, China
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Ji X, Xin Z, Yuan Y, Wang M, Lu X, Li J, Zhang Y, Niu L, Jiang CZ, Sun D. A petunia transcription factor, PhOBF1, regulates flower senescence by modulating gibberellin biosynthesis. HORTICULTURE RESEARCH 2023; 10:uhad022. [PMID: 37786859 PMCID: PMC10541524 DOI: 10.1093/hr/uhad022] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Accepted: 02/06/2023] [Indexed: 10/04/2023]
Abstract
Flower senescence is commonly enhanced by the endogenous hormone ethylene and suppressed by the gibberellins (GAs) in plants. However, the detailed mechanisms for the antagonism of these hormones during flower senescence remain elusive. In this study, we characterized one up-regulated gene PhOBF1, belonging to the basic leucine zipper transcription factor family, in senescing petals of petunia (Petunia hybrida). Exogenous treatments with ethylene and GA3 provoked a dramatic increase in PhOBF1 transcripts. Compared with wild-type plants, PhOBF1-RNAi transgenic petunia plants exhibited shortened flower longevity, while overexpression of PhOBF1 resulted in delayed flower senescence. Transcript abundances of two senescence-related genes PhSAG12 and PhSAG29 were higher in PhOBF1-silenced plants but lower in PhOBF1-overexpressing plants. Silencing and overexpression of PhOBF1 affected expression levels of a few genes involved in the GA biosynthesis and signaling pathways, as well as accumulation levels of bioactive GAs GA1 and GA3. Application of GA3 restored the accelerated petal senescence to normal levels in PhOBF1-RNAi transgenic petunia lines, and reduced ethylene release and transcription of three ethylene biosynthetic genes PhACO1, PhACS1, and PhACS2. Moreover, PhOBF1 was observed to specifically bind to the PhGA20ox3 promoter containing a G-box motif. Transient silencing of PhGA20ox3 in petunia plants through tobacco rattle virus-based virus-induced gene silencing method led to accelerated corolla senescence. Our results suggest that PhOBF1 functions as a negative regulator of ethylene-mediated flower senescence by modulating the GA production.
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Affiliation(s)
- Xiaotong Ji
- College of Landscape Architecture and Arts, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Ziwei Xin
- College of Landscape Architecture and Arts, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Yanping Yuan
- College of Landscape Architecture and Arts, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Meiling Wang
- College of Landscape Architecture and Arts, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Xinyi Lu
- College of Landscape Architecture and Arts, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Jiaqi Li
- College of Landscape Architecture and Arts, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Yanlong Zhang
- College of Landscape Architecture and Arts, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Lixin Niu
- College of Landscape Architecture and Arts, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Cai-Zhong Jiang
- Department of Plant Sciences, University of California, Davis, Davis, CA 95616, USA
- Crops Pathology and Genetics Research Unit, USDA-ARS, Davis, CA 95616, USA
| | - Daoyang Sun
- College of Landscape Architecture and Arts, Northwest A&F University, Yangling, Shaanxi 712100, China
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Peng XQ, Ai YJ, Pu YT, Wang XJ, Li YH, Wang Z, Zhuang WB, Yu BJ, Zhu ZQ. Transcriptome and metabolome analyses reveal molecular mechanisms of anthocyanin-related leaf color variation in poplar ( Populus deltoides) cultivars. FRONTIERS IN PLANT SCIENCE 2023; 14:1103468. [PMID: 36909390 PMCID: PMC9998943 DOI: 10.3389/fpls.2023.1103468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/20/2022] [Accepted: 02/07/2023] [Indexed: 06/18/2023]
Abstract
INTRODUCTION Colored-leaf plants are increasingly popular for their aesthetic, ecological, and social value, which are important materials for research on the regulation of plant pigments. However, anthocyanin components and the molecular mechanisms of anthocyanin biosynthesis in colored-leaf poplar remain unclear. Consequently, an integrative analysis of transcriptome and metabolome is performed to identify the key metabolic pathways and key genes, which could contribute to the molecular mechanism of anthocyanin biosynthesis in the colored-leaf cultivars poplar. METHODS In this study, integrated metabolite and transcriptome analysis was performed to explore the anthocyanin composition and the specific regulatory network of anthocyanin biosynthesis in the purple leaves of the cultivars 'Quanhong' (QHP) and 'Zhongshanyuan' (ZSY). Correlation analysis between RNA-seq data and metabolite profiles were also performed to explore the candidate genes associated with anthocyanin biosynthesis. R2R3-MYB and bHLH TFs with differential expression levels were used to perform a correlation analysis with differentially accumulated anthocyanins. RESULTS AND DISCUSSION A total of 39 anthocyanin compounds were detected by LC-MS/MS analysis. Twelve cyanidins, seven pelargonidins, five delphinidins, and five procyanidins were identified as the major anthocyanin compounds, which were differentially accumulated in purple leaves of QHP and ZSY. The major genes associated with anthocyanin biosynthesis, including structural genes and transcription factors, were differentially expressed in purple leaves of QHP and ZSY through RNA-sequencing (RNA-seq) data analysis, which was consistent with quantitative real-time PCR analysis results. Correlation analysis between RNA-seq data and metabolite profiles showed that the expression patterns of certain differentially expressed genes in the anthocyanin biosynthesis pathway were strongly correlated with the differential accumulation of anthocyanins. One R2R3-MYB subfamily member in the SG5 subgroup, Podel.04G021100, showed a similar expression pattern to some structural genes. This gene was strongly correlated with 16 anthocyanin compounds, indicating that Podel.04G021100 might be involved in the regulation of anthocyanin biosynthesis. These results contribute to a systematic and comprehensive understanding of anthocyanin accumulation and to the molecular mechanisms of anthocyanin biosynthesis in QHP and ZSY.
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Affiliation(s)
- Xu Qian Peng
- College of Tea Science, Guizhou University, Guiyang, China
| | - Yu Jie Ai
- College of Tea Science, Guizhou University, Guiyang, China
| | - Yu Ting Pu
- College of Tea Science, Guizhou University, Guiyang, China
| | - Xiao Jing Wang
- College of Tea Science, Guizhou University, Guiyang, China
| | - Yu Hang Li
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences (Nanjing Botanical Garden Mem. Sun Yat-Sen), Nanjing, China
| | - Zhong Wang
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences (Nanjing Botanical Garden Mem. Sun Yat-Sen), Nanjing, China
| | - Wei Bing Zhuang
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences (Nanjing Botanical Garden Mem. Sun Yat-Sen), Nanjing, China
- Laboratory of Plant Stress Biology, College of Life Sciences, Nanjing Agricultural University, Nanjing, China
- Laizhou, Ornamental Research Center, Hongshun Plum Planting Technology Co., Ltd, Yantai, China
| | - Bing Jun Yu
- Laboratory of Plant Stress Biology, College of Life Sciences, Nanjing Agricultural University, Nanjing, China
| | - Zhi Qi Zhu
- Laizhou, Ornamental Research Center, Hongshun Plum Planting Technology Co., Ltd, Yantai, China
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Fiol A, García S, Dujak C, Pacheco I, Infante R, Aranzana MJ. An LTR retrotransposon in the promoter of a PsMYB10.2 gene associated with the regulation of fruit flesh color in Japanese plum. HORTICULTURE RESEARCH 2022; 9:uhac206. [PMID: 36467274 PMCID: PMC9715577 DOI: 10.1093/hr/uhac206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Accepted: 09/08/2022] [Indexed: 06/17/2023]
Abstract
Japanese plums exhibit wide diversity of fruit coloration. The red to black hues are caused by the accumulation of anthocyanins, while their absence results in yellow, orange or green fruits. In Prunus, MYB10 genes are determinants for anthocyanin accumulation. In peach, QTLs for red plant organ traits map in an LG3 region with three MYB10 copies (PpMYB10.1, PpMYB10.2 and PpMYB10.3). In Japanese plum the gene copy number in this region differs with respect to peach: there are at least three copies of PsMYB10.1, with the expression of one of them (PsMYB10.1a) correlating with fruit skin color. The objective of this study was to determine a possible role of LG3-PsMYB10 genes in the natural variability of the flesh color trait and to develop a molecular marker for marker-assisted selection (MAS). We explored the variability within the LG3-PsMYB10 region using long-range sequences obtained in previous studies through CRISPR-Cas9 enrichment sequencing. We found that the PsMYB10.2 gene was only expressed in red flesh fruits. Its role in promoting anthocyanin biosynthesis was validated by transient overexpression in Japanese plum fruits. The analysis of long-range sequences identified an LTR retrotransposon in the promoter of the expressed PsMYB10.2 gene that explained the trait in 93.1% of the 145 individuals analyzed. We hypothesize that the LTR retrotransposon may promote the PsMYB10.2 expression and activate the anthocyanin biosynthesis pathway. We propose for the first time the PsMYB10.2 gene as candidate for the flesh color natural variation in Japanese plum and provide a molecular marker for MAS.
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Affiliation(s)
- Arnau Fiol
- Centre for Research in Agricultural Genomics (CRAG) CSIC-IRTA-UAB-UB, Campus UAB, Bellaterra, 08193 Barcelona, Spain
| | - Sergio García
- Centre for Research in Agricultural Genomics (CRAG) CSIC-IRTA-UAB-UB, Campus UAB, Bellaterra, 08193 Barcelona, Spain
| | - Christian Dujak
- Centre for Research in Agricultural Genomics (CRAG) CSIC-IRTA-UAB-UB, Campus UAB, Bellaterra, 08193 Barcelona, Spain
| | - Igor Pacheco
- Instituto de Nutrición y Tecnología de Alimentos (INTA), Universidad de Chile, El Líbano 5524, Santiago, Chile
| | - Rodrigo Infante
- Departamento de Producción Agrícola, Facultad de Ciencias Agronómicas, Universidad de Chile, Santa Rosa 11315, Santiago, Chile
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Zhao L, Sun J, Cai Y, Yang Q, Zhang Y, Ogutu CO, Liu J, Zhao Y, Wang F, He H, Zheng B, Han Y. PpHYH is responsible for light-induced anthocyanin accumulation in fruit peel of Prunus persica. TREE PHYSIOLOGY 2022; 42:1662-1677. [PMID: 35220436 PMCID: PMC9366866 DOI: 10.1093/treephys/tpac025] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2021] [Accepted: 02/18/2022] [Indexed: 05/29/2023]
Abstract
Peach Prunus persica is an economically important fruit tree crop worldwide. Although the external color of fruit is an important aspect of fruit quality, the mechanisms underlying its formation remain elusive in peach. Here, we report an elongated hypocotyl 5-homolog gene PpHYH involved in the regulation of anthocyanin pigmentation in peach fruit peel. Anthocyanin accumulation in fruit peel is light-dependent in peach. PpHYH had no auto-activation activity and its transcription was induced by sunlight. PpHYH activated transcription of a cluster of three PpMYB10 genes in the present of a cofactor PpBBX4 encoding a B-BOX protein, leading to anthocyanin accumulation in the sun-exposed peel. However, the PpHYH activity was repressed by a negative regulator of PpCOP1 encoding constitutive photomorphogenesis protein 1 which accumulated in the nucleus under dark condition, resulting in failure of anthocyanin accumulation in the shaded peel. PpCOP1 was re-localized into the cytosol under light condition, in accordance with fruit peel pigmentation. Additionally, transport of anthocyanins from the cytoplasm to the vacuole was a rate-limiting step for anthocyanin accumulation in peach fruit peel. Our results reveal for the first time the HYH gene involved in the regulation of anthocyanin accumulation in fruits, and provide target genes for genetic manipulation of fruit coloration.
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Affiliation(s)
- Lei Zhao
- CAS Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, The Innovative Academy of Seed Design of Chinese Academy of Sciences, Wuhan Botanical Garden, Wuhan 430074, China
- University of Chinese Academy of Sciences, 19A Yuquanlu, Beijing 100049, China
| | - Juanli Sun
- CAS Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, The Innovative Academy of Seed Design of Chinese Academy of Sciences, Wuhan Botanical Garden, Wuhan 430074, China
- University of Chinese Academy of Sciences, 19A Yuquanlu, Beijing 100049, China
| | - Yaming Cai
- CAS Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, The Innovative Academy of Seed Design of Chinese Academy of Sciences, Wuhan Botanical Garden, Wuhan 430074, China
- University of Chinese Academy of Sciences, 19A Yuquanlu, Beijing 100049, China
| | - Qiurui Yang
- CAS Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, The Innovative Academy of Seed Design of Chinese Academy of Sciences, Wuhan Botanical Garden, Wuhan 430074, China
- University of Chinese Academy of Sciences, 19A Yuquanlu, Beijing 100049, China
| | - Yuanqiang Zhang
- CAS Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, The Innovative Academy of Seed Design of Chinese Academy of Sciences, Wuhan Botanical Garden, Wuhan 430074, China
- University of Chinese Academy of Sciences, 19A Yuquanlu, Beijing 100049, China
| | - Collins Otieno Ogutu
- CAS Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, The Innovative Academy of Seed Design of Chinese Academy of Sciences, Wuhan Botanical Garden, Wuhan 430074, China
| | - Jingjing Liu
- CAS Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, The Innovative Academy of Seed Design of Chinese Academy of Sciences, Wuhan Botanical Garden, Wuhan 430074, China
- University of Chinese Academy of Sciences, 19A Yuquanlu, Beijing 100049, China
| | - Yun Zhao
- CAS Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, The Innovative Academy of Seed Design of Chinese Academy of Sciences, Wuhan Botanical Garden, Wuhan 430074, China
- Hubei Hongshan Laboratory, Wuhan, Hubei 430070, China
| | - Furong Wang
- Institute of Fruit Tree and Tea, Academy of Agricultural Science, Wuhan, Hubei 430209, China
| | - Huaping He
- Institute of Fruit Tree and Tea, Academy of Agricultural Science, Wuhan, Hubei 430209, China
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9
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Wu Q, Sun J, Fu J, Yu H, Wang X, Wang S, Adhikari PB, Deng X, Xu Q. Genome-wide identification of ovate family in Citrus and functional characterization of CitOFP19. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2022; 321:111328. [PMID: 35696928 DOI: 10.1016/j.plantsci.2022.111328] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 05/14/2022] [Accepted: 05/15/2022] [Indexed: 06/15/2023]
Abstract
Fruit shape is an important trait for fruit appearance and commercial value. Diversity of fruit-shape has been utilized in the breeding of pummelo (Citrus maxima), a basic species in Citrus. However, little is known about genetic basis of fruit shape in citrus. In this study, we identified 16 OVATE family protein (OFP) genes in the pummelo genome. Phylogenetically, they were classified into three subfamilies, which was consistent with the classification of their Arabidopsis orthologs. Synteny analysis suggested that segment and tandem duplications were responsible for their expansion in pummelo. Expression pattern analysis of Citrus OFPs (CitOFPs) showed that CitOFP19 had significantly higher expression level in the ovaries of round pummelo than in those of pear-shaped pummelo. Heterologous overexpression of CitOFP19 in tomato resulted in pear-shaped ovary and fruit shape. Taken together, this study characterized OVATE gene family in Citrus genome and assessed the function of CitOFP19.
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Affiliation(s)
- Qingjiang Wu
- Key Laboratory of Horticultural Plant Biology of Ministry of Education, Huazhong Agricultural University, Wuhan 430070, China; Institute of Horticultural Sciences, Jiangxi Academy of Agricultural Sciences, Nanchang 330200, China
| | - Juan Sun
- Key Laboratory of Horticultural Plant Biology of Ministry of Education, Huazhong Agricultural University, Wuhan 430070, China
| | - Jialing Fu
- Key Laboratory of Horticultural Plant Biology of Ministry of Education, Huazhong Agricultural University, Wuhan 430070, China
| | - Huiwen Yu
- Key Laboratory of Horticultural Plant Biology of Ministry of Education, Huazhong Agricultural University, Wuhan 430070, China; Key Laboratory of Landscape Plants with Fujian and Taiwan Characteristics of Fujian Colleges and Universities, Minnan Normal University, Zhangzhou 363000, China
| | - Xia Wang
- Key Laboratory of Horticultural Plant Biology of Ministry of Education, Huazhong Agricultural University, Wuhan 430070, China
| | - Shaohua Wang
- Institute of Tropical and Subtropical Cash Crops, Yunnan Academy of Agricultural Sciences, Baoshan 678000, China
| | - Prakash Babu Adhikari
- Key Laboratory of Horticultural Plant Biology of Ministry of Education, Huazhong Agricultural University, Wuhan 430070, China
| | - Xiuxin Deng
- Key Laboratory of Horticultural Plant Biology of Ministry of Education, Huazhong Agricultural University, Wuhan 430070, China
| | - Qiang Xu
- Key Laboratory of Horticultural Plant Biology of Ministry of Education, Huazhong Agricultural University, Wuhan 430070, China.
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10
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Lafferty DJ, Espley RV, Deng CH, Dare AP, Günther CS, Jaakola L, Karppinen K, Boase MR, Wang L, Luo H, Allan AC, Albert NW. The Coordinated Action of MYB Activators and Repressors Controls Proanthocyanidin and Anthocyanin Biosynthesis in Vaccinium. FRONTIERS IN PLANT SCIENCE 2022; 13:910155. [PMID: 35812927 PMCID: PMC9263919 DOI: 10.3389/fpls.2022.910155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Accepted: 05/30/2022] [Indexed: 06/15/2023]
Abstract
Vaccinium berries are regarded as "superfoods" owing to their high concentrations of anthocyanins, flavonoid metabolites that provide pigmentation and positively affect human health. Anthocyanin localization differs between the fruit of cultivated highbush blueberry (V. corymbosum) and wild bilberry (V. myrtillus), with the latter having deep red flesh coloration. Analysis of comparative transcriptomics across a developmental series of blueberry and bilberry fruit skin and flesh identified candidate anthocyanin regulators responsible for this distinction. This included multiple activator and repressor transcription factors (TFs) that correlated strongly with anthocyanin production and had minimal expression in blueberry (non-pigmented) flesh. R2R3 MYB TFs appeared key to the presence and absence of anthocyanin-based pigmentation; MYBA1 and MYBPA1.1 co-activated the pathway while MYBC2.1 repressed it. Transient overexpression of MYBA1 in Nicotiana benthamiana strongly induced anthocyanins, but this was substantially reduced when co-infiltrated with MYBC2.1. Co-infiltration of MYBC2.1 with MYBA1 also reduced activation of DFR and UFGT, key anthocyanin biosynthesis genes, in promoter activation studies. We demonstrated that these TFs operate within a regulatory hierarchy where MYBA1 activated the promoters of MYBC2.1 and bHLH2. Stable overexpression of VcMYBA1 in blueberry elevated anthocyanin content in transgenic plants, indicating that MYBA1 is sufficient to upregulate the TF module and activate the pathway. Our findings identify TF activators and repressors that are hierarchically regulated by SG6 MYBA1, and fine-tune anthocyanin production in Vaccinium. The lack of this TF module in blueberry flesh results in an absence of anthocyanins.
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Affiliation(s)
- Declan J. Lafferty
- The New Zealand Institute for Plant and Food Research Limited, Palmerston North, New Zealand
- School of Biological Sciences, The University of Auckland, Auckland, New Zealand
| | - Richard V. Espley
- The New Zealand Institute for Plant and Food Research Limited, Auckland, New Zealand
| | - Cecilia H. Deng
- The New Zealand Institute for Plant and Food Research Limited, Auckland, New Zealand
| | - Andrew P. Dare
- The New Zealand Institute for Plant and Food Research Limited, Auckland, New Zealand
| | - Catrin S. Günther
- The New Zealand Institute for Plant and Food Research Limited, Auckland, New Zealand
| | - Laura Jaakola
- Department of Arctic and Marine Biology, UiT The Arctic University of Norway, Tromsø, Norway
- Norwegian Institute of Bioeconomy Research (NIBIO), Tromsø, Norway
| | - Katja Karppinen
- Department of Arctic and Marine Biology, UiT The Arctic University of Norway, Tromsø, Norway
| | - Murray R. Boase
- The New Zealand Institute for Plant and Food Research Limited, Palmerston North, New Zealand
| | - Lei Wang
- The New Zealand Institute for Plant and Food Research Limited, Palmerston North, New Zealand
| | - Henry Luo
- The New Zealand Institute for Plant and Food Research Limited, Palmerston North, New Zealand
| | - Andrew C. Allan
- School of Biological Sciences, The University of Auckland, Auckland, New Zealand
- The New Zealand Institute for Plant and Food Research Limited, Auckland, New Zealand
| | - Nick W. Albert
- The New Zealand Institute for Plant and Food Research Limited, Palmerston North, New Zealand
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11
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Lafferty DJ, Espley RV, Deng CH, Günther CS, Plunkett B, Turner JL, Jaakola L, Karppinen K, Allan AC, Albert NW. Hierarchical regulation of MYBPA1 by anthocyanin- and proanthocyanidin-related MYB proteins is conserved in Vaccinium species. JOURNAL OF EXPERIMENTAL BOTANY 2022; 73:1344-1356. [PMID: 34664645 DOI: 10.1093/jxb/erab460] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Accepted: 10/17/2021] [Indexed: 05/28/2023]
Abstract
Members of the Vaccinium genus bear fruits rich in anthocyanins, a class of red-purple flavonoid pigments that provide human health benefits, although the localization and concentrations of anthocyanins differ between species: blueberry (V. corymbosum) has white flesh, while bilberry (V. myrtillus) has red flesh. Comparative transcriptomics between blueberry and bilberry revealed that MYBPA1.1 and MYBA1 strongly correlated with the presence of anthocyanins, but were absent or weakly expressed in blueberry flesh. MYBPA1.1 had a biphasic expression profile, correlating with both proanthocyanidin biosynthesis early during fruit development and anthocyanin biosynthesis during berry ripening. MYBPA1.1 was unable to induce anthocyanin or proanthocyanidin accumulation in Nicotiana benthamiana, but activated promoters of flavonoid biosynthesis genes. The MYBPA1.1 promoter is directly activated by MYBA1 and MYBPA2 proteins, which regulate anthocyanins and proanthocyanidins, respectively. Our findings suggest that the lack of VcMYBA1 expression in blueberry flesh results in an absence of VcMYBPA1.1 expression, which are both required for anthocyanin regulation. In contrast, VmMYBA1 is well expressed in bilberry flesh, up-regulating VmMYBPA1.1, allowing coordinated regulation of flavonoid biosynthesis genes and anthocyanin accumulation. The hierarchal model described here for Vaccinium may also occur in a wider group of plants as a means to co-regulate different branches of the flavonoid pathway.
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Affiliation(s)
- Declan J Lafferty
- The New Zealand Institute for Plant and Food Research Limited, Palmerston North, New Zealand
- The University of Auckland, Auckland, New Zealand
| | - Richard V Espley
- The New Zealand Institute for Plant and Food Research Limited, Auckland, New Zealand
| | - Cecilia H Deng
- The New Zealand Institute for Plant and Food Research Limited, Auckland, New Zealand
| | - Catrin S Günther
- The New Zealand Institute for Plant and Food Research Limited, Auckland, New Zealand
| | - Blue Plunkett
- The New Zealand Institute for Plant and Food Research Limited, Auckland, New Zealand
| | - Janice L Turner
- The New Zealand Institute for Plant and Food Research Limited, Motueka, New Zealand
| | - Laura Jaakola
- Department of Arctic and Marine Biology, UiT The Arctic University of Norway, Tromsø, Norway
- NIBIO, Norwegian Institute of Bioeconomy Research, Ås, Norway
| | - Katja Karppinen
- Department of Arctic and Marine Biology, UiT The Arctic University of Norway, Tromsø, Norway
| | - Andrew C Allan
- The University of Auckland, Auckland, New Zealand
- The New Zealand Institute for Plant and Food Research Limited, Auckland, New Zealand
| | - Nick W Albert
- The New Zealand Institute for Plant and Food Research Limited, Palmerston North, New Zealand
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12
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Yang J, Chen Y, Xiao Z, Shen H, Li Y, Wang Y. Multilevel regulation of anthocyanin-promoting R2R3-MYB transcription factors in plants. FRONTIERS IN PLANT SCIENCE 2022; 13:1008829. [PMID: 36147236 PMCID: PMC9485867 DOI: 10.3389/fpls.2022.1008829] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Accepted: 08/22/2022] [Indexed: 05/14/2023]
Abstract
Anthocyanins are common secondary metabolites in plants that confer red, blue, and purple colorations in plants and are highly desired by consumers for their visual appearance and nutritional quality. In the last two decades, the anthocyanin biosynthetic pathway and transcriptional regulation of anthocyanin biosynthetic genes (ABGs) have been well characterized in many plants. From numerous studies on model plants and horticultural crops, many signaling regulators have been found to control anthocyanin accumulation via regulation of anthocyanin-promoting R2R3-MYB transcription factors (so-called R2R3-MYB activators). The regulatory mechanism of R2R3-MYB activators is mediated by multiple environmental factors (e.g., light, temperature) and internal signals (e.g., sugar, ethylene, and JA) in complicated interactions at multiple levels. Here, we summarize the transcriptional control of R2R3-MYB activators as a result of natural variations in the promoter of their encoding genes, upstream transcription factors and epigenetics, and posttranslational modifications of R2R3-MYB that determine color variations of horticultural plants. In addition, we focus on progress in elucidating the integrated regulatory network of anthocyanin biosynthesis mediated by R2R3-MYB activators in response to multiple signals. We also highlight a few gene cascade modules involved in the regulation of anthocyanin-related R2R3-MYB to provide insights into anthocyanin production in horticultural plants.
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Affiliation(s)
- Jianfei Yang
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin, China
- School of Forestry, Northeast Forestry University, Harbin, China
| | - Yunzhu Chen
- State Key Laboratory of Utilization of Woody Oil Resource, Hunan Academy of Forestry, Changsha, China
| | - Zhihong Xiao
- State Key Laboratory of Utilization of Woody Oil Resource, Hunan Academy of Forestry, Changsha, China
| | - Hailong Shen
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin, China
- School of Forestry, Northeast Forestry University, Harbin, China
| | - Yuhua Li
- College of Life Sciences, Northeast Forestry University, Harbin, China
- Yuhua Li,
| | - Yu Wang
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin, China
- College of Life Sciences, Northeast Forestry University, Harbin, China
- *Correspondence: Yu Wang,
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13
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Zhang YL, Lin-Wang K, Albert NW, Elborough C, Espley RV, Andre CM, Fang ZZ. Identification of a Strong Anthocyanin Activator, VbMYBA, From Berries of Vaccinium bracteatum Thunb. FRONTIERS IN PLANT SCIENCE 2021; 12:697212. [PMID: 34938303 PMCID: PMC8685453 DOI: 10.3389/fpls.2021.697212] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Accepted: 11/09/2021] [Indexed: 05/27/2023]
Abstract
Wufanshu (Vaccinium bracteatum Thunb.), which is a wild member of the genus Vaccinium, accumulates high concentration of anthocyanin in its berries. In this study, the accumulated anthocyanins and their derivatives in Wufanshu berries were identified through UHPLC-MS/MS analysis. Candidate anthocyanin biosynthetic genes were identified from the transcriptome of Wufanshu berries. qRT-PCR analyses showed that the expression of anthocyanin structural genes correlated with anthocyanin accumulation in berries. The R2R3-MYB, VbMYBA, which is a homolog of anthocyanin promoting R2R3-MYBs from other Vaccinium species, was also identified. Transient expression of VbMYBA in Nicotiana tabacum leaves confirmed its role as an anthocyanin regulator, and produced a higher anthocyanin concentration when compared with blueberry VcMYBA expression. Dual-luciferase assays further showed that VbMYBA can activate the DFR and UFGT promoters from other Vaccinium species. VbMYBA has an additional 23 aa at the N terminus compared with blueberry VcMYBA, but this was shown not to affect the ability to regulate anthocyanins. Taken together, our results provide important information on the molecular mechanisms responsible for the high anthocyanin content in Wufanshu berries.
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Affiliation(s)
- Ya-Ling Zhang
- Fruit Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou, China
| | - Kui Lin-Wang
- The New Zealand Institute for Plant and Food Research Limited, Mt Albert Research Centre, Auckland, New Zealand
| | - Nick W. Albert
- The New Zealand Institute for Plant and Food Research Limited, Mt Albert Research Centre, Auckland, New Zealand
| | - Caitlin Elborough
- The New Zealand Institute for Plant and Food Research Limited, Mt Albert Research Centre, Auckland, New Zealand
| | - Richard V. Espley
- The New Zealand Institute for Plant and Food Research Limited, Mt Albert Research Centre, Auckland, New Zealand
| | - Christelle M. Andre
- The New Zealand Institute for Plant and Food Research Limited, Mt Albert Research Centre, Auckland, New Zealand
| | - Zhi-Zhen Fang
- Fruit Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou, China
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14
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Manivannan A, Han K, Lee SY, Lee HE, Hong JP, Kim J, Lee YR, Lee ES, Kim DS. Genome-Wide Analysis of MYB10 Transcription Factor in Fragaria and Identification of QTLs Associated with Fruit Color in Octoploid Strawberry. Int J Mol Sci 2021; 22:ijms222212587. [PMID: 34830464 PMCID: PMC8620777 DOI: 10.3390/ijms222212587] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Revised: 11/18/2021] [Accepted: 11/19/2021] [Indexed: 11/24/2022] Open
Abstract
The genus Fragaria encompass fruits with diverse colors influenced by the distribution and accumulation of anthocyanin. Particularly, the fruit colors of strawberries with different ploidy levels are determined by expression and natural variations in the vital structural and regulatory genes involved in the anthocyanin pathway. Among the regulatory genes, MYB10 transcription factor is crucial for the expression of structural genes in the anthocyanin pathway. In the present study, we performed a genome wide investigation of MYB10 in the diploid and octoploid Fragaria species. Further, we identified seven quantitative trait loci (QTLs) associated with fruit color in octoploid strawberry. In addition, we predicted 20 candidate genes primarily influencing the fruit color based on the QTL results and transcriptome analysis of fruit skin and flesh tissues of light pink, red, and dark red strawberries. Moreover, the computational and transcriptome analysis of MYB10 in octoploid strawberry suggests that the difference in fruit colors could be predominantly influenced by the expression of MYB10 from the F. iinumae subgenome. The outcomes of the present endeavor will provide a platform for the understanding and tailoring of anthocyanin pathway in strawberry for the production of fruits with aesthetic colors.
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15
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Wang F, Wu Y, Wu W, Huang Y, Zhu C, Zhang R, Chen J, Zeng J. Integrative analysis of metabolome and transcriptome profiles provides insight into the fruit pericarp pigmentation disorder caused by 'Candidatus Liberibacter asiaticus' infection. BMC PLANT BIOLOGY 2021; 21:397. [PMID: 34433413 PMCID: PMC8385863 DOI: 10.1186/s12870-021-03167-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/14/2020] [Accepted: 08/10/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND Mandarin 'Shatangju' is susceptible to Huanglongbing (HLB) and the HLB-infected fruits are small, off-flavor, and stay-green at the maturity period. To understand the relationship between pericarp color and HLB pathogen and the effect mechanism of HLB on fruit pericarp coloration, quantitative analyses of HLB bacterial pathogens and carotenoids and also the integrative analysis of metabolome and transcriptome profiles were performed in the mandarin 'Shatangju' variety with four different color fruits, whole green fruits (WGF), top-yellow and base-green fruits (TYBGF), whole light-yellow fruits (WLYF), and whole dark-yellow fruits (WDYF) that were infected with HLB. RESULTS the HLB bacterial population followed the order WGF > TYBGF > WLYF > WDYF. And there were significant differences between each group of samples. Regarding the accumulation of chlorophyll and carotenoid, the chlorophyll-a content in WGF was the highest and in WDYF was the lowest. The content of chlorophyll-b in WGF was significantly higher than that in other three pericarps. There were significant differences in the total content of carotenoid between each group. WGF and TYBGF pericarps were low in phytoene, γ-carotene, β-cryptoxanthin and apocarotenal, while other kinds of carotenoids were significantly higher than those in WDYF. And WLYF was only short of apocarotenal. We comprehensively compared the transcriptome and metabolite profiles of abnormal (WGF, TYBGF and WLYF) and normal (WDYF, control) pericarps. In total, 2,880, 2,782 and 1,053 differentially expressed genes (DEGs), including 121, 117 and 43 transcription factors were identified in the three comparisons, respectively. The qRT-PCR confirmed the expression levels of genes selected from transcriptome. Additionally, a total of 77 flavonoids and other phenylpropanoid-derived metabolites were identified in the three comparisons. Most (76.65 %) showed markedly lower abundances in the three comparisons. The phenylpropanoid biosynthesis pathway was the major enrichment pathway in the integrative analysis of metabolome and transcriptome profiles. CONCLUSIONS Synthesizing the above analytical results, this study indicated that different color pericarps were associated with the reduced levels of some carotenoids and phenylpropanoids derivatives products and the down-regulation of proteins in flavonoids, phenylpropanoids derivatives biosynthesis pathway and the photosynthesis-antenna proteins.
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Affiliation(s)
- Feiyan Wang
- Key Laboratory of South Subtropical Fruit Biology and Genetic Resource Utilization & Guangdong Province Key Laboratory of Tropical and Subtropical Fruit Tree Research, Institute of Fruit Tree Research, Guangdong Academy of Agricultural Sciences, 510640 Guangzhou, China
- College of Horticulture, South China Agricultural University, 510642 Guangzhou, China
| | - Yunli Wu
- College of Horticulture, South China Agricultural University, 510642 Guangzhou, China
| | - Wen Wu
- Key Laboratory of South Subtropical Fruit Biology and Genetic Resource Utilization & Guangdong Province Key Laboratory of Tropical and Subtropical Fruit Tree Research, Institute of Fruit Tree Research, Guangdong Academy of Agricultural Sciences, 510640 Guangzhou, China
| | - Yongjing Huang
- Key Laboratory of South Subtropical Fruit Biology and Genetic Resource Utilization & Guangdong Province Key Laboratory of Tropical and Subtropical Fruit Tree Research, Institute of Fruit Tree Research, Guangdong Academy of Agricultural Sciences, 510640 Guangzhou, China
| | - Congyi Zhu
- Key Laboratory of South Subtropical Fruit Biology and Genetic Resource Utilization & Guangdong Province Key Laboratory of Tropical and Subtropical Fruit Tree Research, Institute of Fruit Tree Research, Guangdong Academy of Agricultural Sciences, 510640 Guangzhou, China
| | - Ruimin Zhang
- Key Laboratory of South Subtropical Fruit Biology and Genetic Resource Utilization & Guangdong Province Key Laboratory of Tropical and Subtropical Fruit Tree Research, Institute of Fruit Tree Research, Guangdong Academy of Agricultural Sciences, 510640 Guangzhou, China
| | - Jiezhong Chen
- College of Horticulture, South China Agricultural University, 510642 Guangzhou, China
| | - Jiwu Zeng
- Key Laboratory of South Subtropical Fruit Biology and Genetic Resource Utilization & Guangdong Province Key Laboratory of Tropical and Subtropical Fruit Tree Research, Institute of Fruit Tree Research, Guangdong Academy of Agricultural Sciences, 510640 Guangzhou, China
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16
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Fang ZZ, Lin-Wang K, Zhou DR, Lin YJ, Jiang CC, Pan SL, Espley RV, Andre CM, Ye XF. Activation of PsMYB10.2 Transcription Causes Anthocyanin Accumulation in Flesh of the Red-Fleshed Mutant of 'Sanyueli' ( Prunus salicina Lindl.). FRONTIERS IN PLANT SCIENCE 2021; 12:680469. [PMID: 34239526 PMCID: PMC8259629 DOI: 10.3389/fpls.2021.680469] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Accepted: 05/21/2021] [Indexed: 05/31/2023]
Abstract
Plum is one of the most important stone fruits in the world and anthocyanin-rich plums are increasingly popular due to their health-promoting potential. In this study, we investigated the mechanisms of anthocyanin accumulation in the flesh of the red-fleshed mutant of the yellow-fleshed plum 'Sanyueli'. RNA-Seq and qRT-PCR showed that anthocyanin biosynthetic genes and the transcription factor PsMYB10.2 were upregulated in the flesh of the mutant. Functional testing in tobacco leaves indicated that PsMYB10.2 was an anthocyanin pathway activator and can activate the promoter of the anthocyanin biosynthetic genes PsUFGT and PsGST. The role of PsMYB10.2 in anthocyanin accumulation in the flesh of plum was further confirmed by virus-induced gene silencing. These results provide information for further elucidating the underlying mechanisms of anthocyanin accumulation in the flesh of plum and for the breeding of new red-fleshed plum cultivars.
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Affiliation(s)
- Zhi-Zhen Fang
- Fruit Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou, China
- Fujian Engineering and Technology Research Center for Deciduous Fruit Trees, Fujian Academy of Agricultural Sciences, Fuzhou, China
| | - Kui Lin-Wang
- The New Zealand Institute for Plant and Food Research Limited, Mt Albert Research Centre, Auckland, New Zealand
| | - Dan-Rong Zhou
- Fruit Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou, China
- Fujian Engineering and Technology Research Center for Deciduous Fruit Trees, Fujian Academy of Agricultural Sciences, Fuzhou, China
| | - Yan-Juan Lin
- Fruit Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou, China
- Fujian Engineering and Technology Research Center for Deciduous Fruit Trees, Fujian Academy of Agricultural Sciences, Fuzhou, China
| | - Cui-Cui Jiang
- Fruit Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou, China
- Fujian Engineering and Technology Research Center for Deciduous Fruit Trees, Fujian Academy of Agricultural Sciences, Fuzhou, China
| | - Shao-Lin Pan
- Fruit Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou, China
- Fujian Engineering and Technology Research Center for Deciduous Fruit Trees, Fujian Academy of Agricultural Sciences, Fuzhou, China
| | - Richard V. Espley
- The New Zealand Institute for Plant and Food Research Limited, Mt Albert Research Centre, Auckland, New Zealand
| | - Christelle M. Andre
- The New Zealand Institute for Plant and Food Research Limited, Mt Albert Research Centre, Auckland, New Zealand
| | - Xin-Fu Ye
- Fruit Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou, China
- Fujian Engineering and Technology Research Center for Deciduous Fruit Trees, Fujian Academy of Agricultural Sciences, Fuzhou, China
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17
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Fiol A, García-Gómez BE, Jurado-Ruiz F, Alexiou K, Howad W, Aranzana MJ. Characterization of Japanese Plum ( Prunus salicina) PsMYB10 Alleles Reveals Structural Variation and Polymorphisms Correlating With Fruit Skin Color. FRONTIERS IN PLANT SCIENCE 2021; 12:655267. [PMID: 34168666 PMCID: PMC8217863 DOI: 10.3389/fpls.2021.655267] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Accepted: 05/10/2021] [Indexed: 05/07/2023]
Abstract
The red to blue hue of plant organs is caused due to anthocyanins, which are water-soluble flavonoid pigments. The accumulation of these pigments is regulated by a complex of R2R3-MYB transcription factors (TFs), basic-helix-loop-helix (bHLH), and WD-repeat (WDR) proteins (MBW complex). In Rosaceae species, R2R3-MYBs, particularly MYB10 genes, are responsible for part of the natural variation in anthocyanin colors. Japanese plum cultivars, which are hybrids of Prunus salicina, have high variability in the color hue and pattern, going from yellow-green to red and purple-blue, probably as a result of the interspecific hybridization origin of the crop. Because of such variability, Japanese plum can be considered as an excellent model to study the color determination in Rosaceae fruit tree species. Here, we cloned and characterized the alleles of the PsMYB10 genes in the linkage group LG3 region where quantitative trait loci (QTLs) for the organ color have been mapped to other Prunus species. Allele segregation in biparental populations as well as in a panel of varieties, combined with the whole-genome sequence of two varieties with contrasting fruit color, allowed the organization of the MYB10 alleles into haplotypes. With the help of this strategy, alleles were assigned to genes and at least three copies of PsMYB10.1 were identified in some varieties. In total, we observed six haplotypes, which were able to characterize 91.36% of the cultivars. In addition, two alleles of PsMYB10.1 were found to be highly associated with anthocyanin and anthocyanin-less skin. Their expression during the fruit development confirms their role in the fruit skin coloration. Here, we provide a highly efficient molecular marker for the early selection of colored or non-colored fruits in Japanese plum breeding programs.
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Affiliation(s)
- Arnau Fiol
- Centre for Research in Agricultural Genomics, CSIC-IRTA-UAB-UB, Campus UAB, Barcelona, Spain
| | - Beatriz E. García-Gómez
- Centre for Research in Agricultural Genomics, CSIC-IRTA-UAB-UB, Campus UAB, Barcelona, Spain
| | - Federico Jurado-Ruiz
- Centre for Research in Agricultural Genomics, CSIC-IRTA-UAB-UB, Campus UAB, Barcelona, Spain
| | - Konstantinos Alexiou
- Centre for Research in Agricultural Genomics, CSIC-IRTA-UAB-UB, Campus UAB, Barcelona, Spain
- Institut de Recerca i Tecnologia Agroalimentàries, Barcelona, Spain
| | - Werner Howad
- Centre for Research in Agricultural Genomics, CSIC-IRTA-UAB-UB, Campus UAB, Barcelona, Spain
- Institut de Recerca i Tecnologia Agroalimentàries, Barcelona, Spain
| | - Maria José Aranzana
- Centre for Research in Agricultural Genomics, CSIC-IRTA-UAB-UB, Campus UAB, Barcelona, Spain
- Institut de Recerca i Tecnologia Agroalimentàries, Barcelona, Spain
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Yang J, Song HD, Chen Y, Chen B, Kim M, Kim P, Kawabata S, Li Y, Wang Y. A single amino acid substitution in the R2R3 conserved domain of the BrPAP1a transcription factor impairs anthocyanin production in turnip (Brassica rapa subsp. rapa). PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2021; 162:124-136. [PMID: 33676299 DOI: 10.1016/j.plaphy.2021.02.011] [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: 10/05/2020] [Accepted: 02/10/2021] [Indexed: 05/27/2023]
Abstract
The purple pigmentation in the epidermis of swollen roots of 'Tsuda' turnip (Brassica rapa subsp. rapa) is induced by light, providing a good system to investigate the genetic mechanism of light-dependent anthocyanin biosynthesis in B. rapa. Here, we identified the R2R3 MYB transcription factor gene PRODUCTION OF ANTHOCYANIN PIGMENT1 (BrPAP1a) as the critical gene in the anthocyanin-defective mutant w68. A nucleotide mutation in the turn region of the R3 domain was screened, which caused an amino acid substitution from glycine to serine (G94S). Functional analysis showed that the interaction of BrPAP1a with two bHLH factors ENHANCER OF GLABRA 3 (BrEGL3) and TRANSPARENT TESTA 8 (BrTT8) were impaired by the mutation. Expression of BrTT8 was activated by BrPAP1a and enhanced by MYB-bHLH-WDR (MBW) complexes, but blocked by the mutation. Furthermore, BrPAP1a directly bound the MYB-recognizing element (MRE) in the BrTT8 promoter, while the G94S substitution caused a loss of DNA-binding activity. Our findings indicate that G94 is required for protein interaction with BrTT8 and BrEGL3 and DNA-binding of BrPAP1a to activate BrTT8 expression, which leads to anthocyanin biosynthesis. Collectively, our data indicate the importance of the highly conserved amino acids within R2R3 MYB proteins in regulating anthocyanin biosynthesis and could aid programs to increase anthocyanins in turnip roots.
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Affiliation(s)
- Jianfei Yang
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration (Northeast Forestry University), Ministry of Education, Harbin, 150040, China; College of Life Science, Northeast Forestry University, Harbin, 150040, China.
| | - Hyon Dok Song
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration (Northeast Forestry University), Ministry of Education, Harbin, 150040, China; College of Life Science, Northeast Forestry University, Harbin, 150040, China.
| | - Yunzhu Chen
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration (Northeast Forestry University), Ministry of Education, Harbin, 150040, China; College of Life Science, Northeast Forestry University, Harbin, 150040, China.
| | - Bowei Chen
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration (Northeast Forestry University), Ministry of Education, Harbin, 150040, China; College of Life Science, Northeast Forestry University, Harbin, 150040, China.
| | - Minjun Kim
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration (Northeast Forestry University), Ministry of Education, Harbin, 150040, China; College of Life Science, Northeast Forestry University, Harbin, 150040, China.
| | - Pyol Kim
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration (Northeast Forestry University), Ministry of Education, Harbin, 150040, China; College of Life Science, Northeast Forestry University, Harbin, 150040, China.
| | - Saneyuki Kawabata
- Institute for Sustainable Agroecosystem Services, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Midoricho, Nishitokyo, Tokyo, 188-0002, Japan.
| | - Yuhua Li
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration (Northeast Forestry University), Ministry of Education, Harbin, 150040, China; College of Life Science, Northeast Forestry University, Harbin, 150040, China.
| | - Yu Wang
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration (Northeast Forestry University), Ministry of Education, Harbin, 150040, China; College of Life Science, Northeast Forestry University, Harbin, 150040, China.
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Yan H, Pei X, Zhang H, Li X, Zhang X, Zhao M, Chiang VL, Sederoff RR, Zhao X. MYB-Mediated Regulation of Anthocyanin Biosynthesis. Int J Mol Sci 2021; 22:3103. [PMID: 33803587 PMCID: PMC8002911 DOI: 10.3390/ijms22063103] [Citation(s) in RCA: 122] [Impact Index Per Article: 40.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 03/11/2021] [Accepted: 03/15/2021] [Indexed: 11/16/2022] Open
Abstract
Anthocyanins are natural water-soluble pigments that are important in plants because they endow a variety of colors to vegetative tissues and reproductive plant organs, mainly ranging from red to purple and blue. The colors regulated by anthocyanins give plants different visual effects through different biosynthetic pathways that provide pigmentation for flowers, fruits and seeds to attract pollinators and seed dispersers. The biosynthesis of anthocyanins is genetically determined by structural and regulatory genes. MYB (v-myb avian myeloblastosis viral oncogene homolog) proteins are important transcriptional regulators that play important roles in the regulation of plant secondary metabolism. MYB transcription factors (TFs) occupy a dominant position in the regulatory network of anthocyanin biosynthesis. The TF conserved binding motifs can be combined with other TFs to regulate the enrichment and sedimentation of anthocyanins. In this study, the regulation of anthocyanin biosynthetic mechanisms of MYB-TFs are discussed. The role of the environment in the control of the anthocyanin biosynthesis network is summarized, the complex formation of anthocyanins and the mechanism of environment-induced anthocyanin synthesis are analyzed. Some prospects for MYB-TF to modulate the comprehensive regulation of anthocyanins are put forward, to provide a more relevant basis for further research in this field, and to guide the directed genetic modification of anthocyanins for the improvement of crops for food quality, nutrition and human health.
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Affiliation(s)
- Huiling Yan
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin 150040, China; (H.Y.); (H.Z.); (X.L.); (X.Z.); (M.Z.); (V.L.C.)
| | - Xiaona Pei
- Harbin Research Institute of Forestry Machinery, State Administration of Forestry and Grassland, Harbin 150086, China;
- Research Center of Cold Temperate Forestry, CAF, Harbin 150086, China
| | - Heng Zhang
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin 150040, China; (H.Y.); (H.Z.); (X.L.); (X.Z.); (M.Z.); (V.L.C.)
| | - Xiang Li
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin 150040, China; (H.Y.); (H.Z.); (X.L.); (X.Z.); (M.Z.); (V.L.C.)
| | - Xinxin Zhang
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin 150040, China; (H.Y.); (H.Z.); (X.L.); (X.Z.); (M.Z.); (V.L.C.)
| | - Minghui Zhao
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin 150040, China; (H.Y.); (H.Z.); (X.L.); (X.Z.); (M.Z.); (V.L.C.)
| | - Vincent L. Chiang
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin 150040, China; (H.Y.); (H.Z.); (X.L.); (X.Z.); (M.Z.); (V.L.C.)
- Forest Biotechnology Group, Department of Forestry and Environmental Resources, North Carolina State University, Raleigh, NC 27695, USA;
| | - Ronald Ross Sederoff
- Forest Biotechnology Group, Department of Forestry and Environmental Resources, North Carolina State University, Raleigh, NC 27695, USA;
| | - Xiyang Zhao
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin 150040, China; (H.Y.); (H.Z.); (X.L.); (X.Z.); (M.Z.); (V.L.C.)
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20
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Chen G, Xu P, Pan J, Li Y, Zhou J, Kuang H, Lian H. Inhibition of FvMYB10 transcriptional activity promotes color loss in strawberry fruit. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2020; 298:110578. [PMID: 32771176 DOI: 10.1016/j.plantsci.2020.110578] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Revised: 06/17/2020] [Accepted: 06/22/2020] [Indexed: 06/11/2023]
Abstract
FvMYB10 protein has been proved to be a transcriptional switch for anthocyanin biosynthesis in strawberry. A single nucleotide mutation in R2 domain of FvMYB10, named as FvmMYB10, is found to be responsible for the white color in strawberry variety 'Yellow Wonder'. However, the mechanism of FvmMYB10 suppresses anthocyanin biosynthesis in strawberry is largely unknown. Here, we show that the transcriptional level of FvMYB10 and key enzyme genes involved in anthocyanin biosynthesis in 'Yellow Wonder' were lower than that in red color variety 'Ruegen', especially at turning to ripening stage. The low expression level of FvmMYB10 may due to his inability to bind to its promoter region and activate its own expression. We found FvMYB10-overexpressing, but not FvmMYB10-overexpressing, promote anthocyanin accumulation in Arabidopsis and strawberry fruit despite of their similar expression levels. In addition, subcellular localization assay indicated that FvMYB10-YFP, but not FvmMYB10-YFP, localized to sub-nucleus foci (speckles) in the nucleus, implying the mutation of FvMYB10 might inhibit its transcription factor activity and eventually interfere with its function. Subsequently, we confirmed that FvMYB10 bind to the promoter region of some specific key enzyme genes, including FvCHS2 and FvDFR1 and activated their expression. While FvmMYB10 failed to binding and transcriptional activating these genes. Our findings provide insights into molecular mechanism of anthocyanin biosynthesis regulated by MYB10 in strawberry fruits.
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Affiliation(s)
- Guanqun Chen
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, 200240, China; School of Design, Shanghai Jiao Tong University, Shanghai, 200240, China.
| | - Pengbo Xu
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, 200240, China.
| | - Jian Pan
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, 200240, China.
| | - Yang Li
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, 200240, China.
| | - Junhui Zhou
- Department of Cell Biology and Molecular Genetics, University of Maryland, College Park, MD, 20742, USA.
| | - Huiyun Kuang
- Shanghai Shumei Agriculture Investment Co., Ltd, Shanghai, 201711, China.
| | - Hongli Lian
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, 200240, China.
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21
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Xu S, Lai E, Zhao L, Cai Y, Ogutu C, Cherono S, Han Y, Zheng B. Development of a fast and efficient root transgenic system for functional genomics and genetic engineering in peach. Sci Rep 2020; 10:2836. [PMID: 32071340 PMCID: PMC7029003 DOI: 10.1038/s41598-020-59626-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Accepted: 01/17/2020] [Indexed: 01/30/2023] Open
Abstract
Peach is an economically import fruit crop worldwide, and serves as a model species of the Rosaceae family as well. However, peach functional genomics studies are severely hampered due to its recalcitrance to regeneration and stable transformation. Here, we report a fast and efficient Agrobacterium rhizogenes-mediated transformation system in peach. Various explants, including leaf, hypocotyl and shoot, were all able to induce transgenic hairy roots, with a transformation efficiency of over 50% for hypocotyl. Composite plants were generated by infecting shoots with A. rhizogenes to induce transgenic adventitious hairy roots. The composite plant system was successfully used to validate function of an anthocyanin-related regulatory gene PpMYB10.1 in transgenic hairy roots, and two downstream genes, PpUFGT and PpGST, were strongly activated. Our stable and reproductive A. rhizogenes-mediated transformation system provides an avenue for gene function assay, genetic engineering, and investigation of root-rhizosphere microorganism interaction in peach.
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Affiliation(s)
- Shengli Xu
- CAS Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Wuhan, 430074, China.,University of Chinese Academy of Sciences, 19A Yuquanlu, Beijing, 100049, China
| | - Enhui Lai
- CAS Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Wuhan, 430074, China.,University of Chinese Academy of Sciences, 19A Yuquanlu, Beijing, 100049, China
| | - Lei Zhao
- CAS Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Wuhan, 430074, China.,University of Chinese Academy of Sciences, 19A Yuquanlu, Beijing, 100049, China
| | - Yaming Cai
- CAS Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Wuhan, 430074, China.,University of Chinese Academy of Sciences, 19A Yuquanlu, Beijing, 100049, China
| | - Collins Ogutu
- CAS Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Wuhan, 430074, China.,University of Chinese Academy of Sciences, 19A Yuquanlu, Beijing, 100049, China
| | - Sylvia Cherono
- CAS Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Wuhan, 430074, China.,University of Chinese Academy of Sciences, 19A Yuquanlu, Beijing, 100049, China
| | - Yuepeng Han
- CAS Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Wuhan, 430074, China. .,Sino-African Joint Research Center, Chinese Academy of Sciences, Wuhan, 430074, China.
| | - Beibei Zheng
- CAS Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Wuhan, 430074, China.
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