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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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Hoseinzadeh AH, Soorni A, Shoorooei M, Torkzadeh Mahani M, Maali Amiri R, Allahyari H, Mohammadi R. Comparative transcriptome provides molecular insight into defense-associated mechanisms against spider mite in resistant and susceptible common bean cultivars. PLoS One 2020; 15:e0228680. [PMID: 32017794 PMCID: PMC6999899 DOI: 10.1371/journal.pone.0228680] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2019] [Accepted: 01/20/2020] [Indexed: 01/07/2023] Open
Abstract
Common bean (Phaseolus vulgaris L.) is a major source of proteins and one of the most important edible foods for more than three hundred million people in the world. The common bean plants are frequently attacked by spider mite (Tetranychus urticae Koch), leading to a significant decrease in plant growth and economic performance. The use of resistant cultivars and the identification of the genes involved in plant-mite resistance are practical solutions to this problem. Hence, a comprehensive study of the molecular interactions between resistant and susceptible common bean cultivars and spider mite can shed light into the understanding of mechanisms and biological pathways of resistance. In this study, one resistant (Naz) and one susceptible (Akhtar) cultivars were selected for a transcriptome comparison at different time points (0, 1 and 5 days) after spider mite feeding. The comparison of cultivars in different time points revealed several key genes, which showed a change increase in transcript abundance via spider mite infestation. These included genes involved in flavonoid biosynthesis process; a conserved MYB-bHLH-WD40 (MBW) regulatory complex; transcription factors (TFs) TT2, TT8, TCP, Cys2/His2-type and C2H2-type zinc finger proteins; the ethylene response factors (ERFs) ERF1 and ERF9; genes related to metabolism of auxin and jasmonic acid (JA); pathogenesis-related (PR) proteins and heat shock proteins.
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Affiliation(s)
- Abdul Hadi Hoseinzadeh
- Department of Agronomy and Plant Breeding, Faculty of Agriculture, University of Tehran, Karaj, Iran
| | - Aboozar Soorni
- Department of Biotechnology, College of Agriculture, Isfahan University of Technology, Isfahan, Iran
| | - Marie Shoorooei
- Department of Agronomy and Plant Breeding, Faculty of Agriculture, University of Tehran, Karaj, Iran
| | - Masoud Torkzadeh Mahani
- Department of Biotechnology, Institute of Science, High Technology and Environmental Science, Graduate University of Advanced Technology, Kerman, Iran
| | - Reza Maali Amiri
- Department of Agronomy and Plant Breeding, Faculty of Agriculture, University of Tehran, Karaj, Iran
| | - Hossein Allahyari
- Department of Plant Protection, Faculty of Agriculture, University of Tehran, Karaj, Iran
| | - Rahmat Mohammadi
- Department of Agronomy and Plant Breeding, Faculty of Agriculture, University of Tehran, Karaj, Iran
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Zhang S, Wu X, Cui J, Zhang F, Wan X, Liu Q, Zhong Y, Lin T. Physiological and transcriptomic analysis of yellow leaf coloration in Populus deltoides Marsh. PLoS One 2019; 14:e0216879. [PMID: 31112574 PMCID: PMC6529213 DOI: 10.1371/journal.pone.0216879] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Accepted: 04/30/2019] [Indexed: 12/17/2022] Open
Abstract
Populus deltoides Marsh has high ornamental value because its leaves remain yellow during the non-dormant period. However, little is known about the regulatory mechanism of leaf coloration in P. deltoides Marsh. Thus, we analyzed the physiological and transcriptional differences of yellow leaves (mutant) and green leaves (wild-type) of P. deltoides Marsh. Physiological experiments showed that the contents of chlorophyll (Chl) and carotenoid were lower in mutant leaves, and the flavonoid content did not differ significantly between mutant and wild-type leaves. Transcriptomic sequencing was further used to identify 153 differentially expressed genes (DEGs). Functional classifications based on Gene Ontology enrichment and Genome enrichment analysis indicated that the DEGs were involved in Chl biosynthesis and flavonoid biosynthesis pathways. Among these, geranylgeranyl diphosphate (CHLP) genes associated with Chl biosynthesis showed down-regulation, while chlorophyllase (CLH) genes associated with Chl degradation were up-regulated in yellow leaves. The expression levels of these genes were further confirmed using quantitative real-time PCR (RT-qPCR). Furthermore, the estimation of the main precursors of Chl confirmed that CHLP is a vital enzyme for the yellow leaf color phenotype. Consequently, the formation of yellow leaf color is due to the disruption of Chl synthesis or catabolism rather than flavonoid synthesis. These results contribute to our understanding of mechanisms and regulation of leaf color variation in poplar at the transcriptional level.
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Affiliation(s)
- Shuzhen Zhang
- College of Landscape Architecture of Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Xiaolu Wu
- College of Landscape Architecture of Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Jie Cui
- College of Landscape Architecture of Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Fan Zhang
- College of Landscape Architecture of Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Xueqin Wan
- College of Forestry of Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Qinglin Liu
- College of Landscape Architecture of Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Yu Zhong
- College of Forestry of Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Tiantian Lin
- College of Forestry of Sichuan Agricultural University, Chengdu, Sichuan, China
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Li C, Qiu J, Huang S, Yin J, Yang G. AaMYB3 interacts with AabHLH1 to regulate proanthocyanidin accumulation in Anthurium andraeanum (Hort.)-another strategy to modulate pigmentation. HORTICULTURE RESEARCH 2019; 6:14. [PMID: 30603098 PMCID: PMC6312548 DOI: 10.1038/s41438-018-0102-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Revised: 10/02/2018] [Accepted: 10/11/2018] [Indexed: 05/20/2023]
Abstract
Proanthocyanidins (PAs), also known as "condensed tannins", are colorless metabolites produced through the flavonoid pathway that are involved in stress resistance in plants. Because PAs are involved in the anthocyanin biosynthetic pathway, they play a role in the modification of pigmentation conferred by anthocyanins in ornamental organs. In this study, we isolated the gene and functionally characterized an R2R3-MYB transcription factor (TF), AaMYB3, and a basic helix-loop-helix TF, AabHLH1, from Anthurium andraeanum (Hort.), a typical tropical flower. AaMYB3 is primarily expressed in the spathe and negatively correlates with anthocyanin accumulation. A complementation test in an Arabidopsis tt8 mutant showed that AabHLH1 successfully restores the PA-deficient seed coat phenotype. The ectopic overexpression of AaMYB3 alone or its coexpression with AabHLH1 in transgenic tobacco resulted in light pink or even pale-pink corolla limbs by reducing their anthocyanin levels and greatly enhancing their accumulation of PAs. This overexpression of the anthurium TF genes upregulated the late anthocyanin enzyme-encoding genes (NtDFR and NtANS) and the key PA genes (NtLAR and NtANR) in transgenic tobacco. The interaction between AaMYB3 and the AabHLH1 protein was confirmed using yeast two-hybrid (Y2H) and bimolecular fluorescence complementation (BiFC) assays. In the developing red spathes of the cultivars "Vitara" and "Tropical", the expression of AaMYB3 was closely linked to PA accumulation, and AaMYB3 was coexpressed with AaCHS, AaF3H, AaDFR, AaANS, AaLAR, and AaANR. The expression pattern of AabHLH1 was similar to that of AaF3'H. Our results suggest that AaMYB3 and AabHLH1 are involved in the regulation of PA biosynthesis in anthurium and could potentially be used to metabolically engineer PA biosynthesis in plants.
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Affiliation(s)
- Chonghui Li
- Tropical Crops Genetic Resources Institute, the Chinese Academy of Tropical Agricultural Sciences (CATAS) / Key Laboratory of Crop Gene Resources and Germplasm Enhancement in Southern China, Ministry of Agriculture, Danzhou, 571737 China
- The Engineering Technology Research Center of Tropical Ornamental Plant Germplasm Innovation and Utilization, Hainan Province, Danzhou, 571737 China
| | - Jian Qiu
- Rubber Research Institute, CATAS/ Key Laboratory of Biology and Genetic Resources of Rubber Tree, Ministry of Agriculture, Danzhou, 571737 China
| | - Surong Huang
- Tropical Crops Genetic Resources Institute, the Chinese Academy of Tropical Agricultural Sciences (CATAS) / Key Laboratory of Crop Gene Resources and Germplasm Enhancement in Southern China, Ministry of Agriculture, Danzhou, 571737 China
- The Engineering Technology Research Center of Tropical Ornamental Plant Germplasm Innovation and Utilization, Hainan Province, Danzhou, 571737 China
| | - Junmei Yin
- Tropical Crops Genetic Resources Institute, the Chinese Academy of Tropical Agricultural Sciences (CATAS) / Key Laboratory of Crop Gene Resources and Germplasm Enhancement in Southern China, Ministry of Agriculture, Danzhou, 571737 China
- The Engineering Technology Research Center of Tropical Ornamental Plant Germplasm Innovation and Utilization, Hainan Province, Danzhou, 571737 China
| | - Guangsui Yang
- Tropical Crops Genetic Resources Institute, the Chinese Academy of Tropical Agricultural Sciences (CATAS) / Key Laboratory of Crop Gene Resources and Germplasm Enhancement in Southern China, Ministry of Agriculture, Danzhou, 571737 China
- The Engineering Technology Research Center of Tropical Ornamental Plant Germplasm Innovation and Utilization, Hainan Province, Danzhou, 571737 China
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Li Z, Wang J, Fu Y, Gao Y, Lu H, Xu L. Transcriptome profiling in the spathe of Anthurium andraeanum 'Albama' and its anthocyanin-loss mutant 'Xueyu'. Sci Data 2018; 5:180247. [PMID: 30422122 PMCID: PMC6233480 DOI: 10.1038/sdata.2018.247] [Citation(s) in RCA: 2] [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: 06/15/2018] [Accepted: 09/18/2018] [Indexed: 11/29/2022] Open
Abstract
Anthurium andraeanum is a popular tropical ornamental plant. Its spathes are brilliantly coloured due to variable anthocyanin contents. To examine the mechanisms that control anthocyanin biosynthesis, we sequenced the spathe transcriptomes of 'Albama', a red-spathed cultivar of A. andraeanum, and 'Xueyu', its anthocyanin-loss mutant. Both long reads and short reads were sequenced. Long read sequencing produced 805,869 raw reads, resulting in 83,073 high-quality transcripts. Short read sequencing produced 347.79 M reads, and the subsequent assembly resulted in 111,674 unigenes. High-quality transcripts and unigenes were quantified using the short reads, and differential expression analysis was performed between 'Albama' and 'Xueyu'. Obtaining high-quality, full-length transcripts enabled the detection of long transcript structures and transcript variants. These data provide a foundation to elucidate the mechanisms regulating the biosynthesis of anthocyanin in A. andraeanum.
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Affiliation(s)
- Zhiying Li
- Institute of Tropical Crop Genetic Resources, Chinese Academy of Tropical Agricultural Sciences, Danzhou 571737, Hainan, China
- Ministry of Agriculture Key Laboratory of Crop Gene Resources and Germplasm Enhancement in Southern China, Danzhou, 571737, Hainan, China
- Hainan Province Key Laboratory of Tropical Crops Germplasm Resources Genetic Improvement and Innovation, Danzhou 571737, Hainan, China
- Mid Tropical Crop Gene Bank of National Crop Resources, Danzhou, 571700, Hainan, China
| | - Jiabin Wang
- Institute of Tropical Crop Genetic Resources, Chinese Academy of Tropical Agricultural Sciences, Danzhou 571737, Hainan, China
- Ministry of Agriculture Key Laboratory of Crop Gene Resources and Germplasm Enhancement in Southern China, Danzhou, 571737, Hainan, China
- Hainan Province Key Laboratory of Tropical Crops Germplasm Resources Genetic Improvement and Innovation, Danzhou 571737, Hainan, China
- Mid Tropical Crop Gene Bank of National Crop Resources, Danzhou, 571700, Hainan, China
| | - Yunliu Fu
- Institute of Tropical Crop Genetic Resources, Chinese Academy of Tropical Agricultural Sciences, Danzhou 571737, Hainan, China
- Ministry of Agriculture Key Laboratory of Crop Gene Resources and Germplasm Enhancement in Southern China, Danzhou, 571737, Hainan, China
- Hainan Province Key Laboratory of Tropical Crops Germplasm Resources Genetic Improvement and Innovation, Danzhou 571737, Hainan, China
- Mid Tropical Crop Gene Bank of National Crop Resources, Danzhou, 571700, Hainan, China
| | - Yu Gao
- Institute of Tropical Crop Genetic Resources, Chinese Academy of Tropical Agricultural Sciences, Danzhou 571737, Hainan, China
- Nanjing Agricultural University, Nanjing 210095, Jiangsu, China
| | - Hunzhen Lu
- Institute of Tropical Crop Genetic Resources, Chinese Academy of Tropical Agricultural Sciences, Danzhou 571737, Hainan, China
- Nanjing Agricultural University, Nanjing 210095, Jiangsu, China
| | - Li Xu
- Institute of Tropical Crop Genetic Resources, Chinese Academy of Tropical Agricultural Sciences, Danzhou 571737, Hainan, China
- Ministry of Agriculture Key Laboratory of Crop Gene Resources and Germplasm Enhancement in Southern China, Danzhou, 571737, Hainan, China
- Hainan Province Key Laboratory of Tropical Crops Germplasm Resources Genetic Improvement and Innovation, Danzhou 571737, Hainan, China
- Mid Tropical Crop Gene Bank of National Crop Resources, Danzhou, 571700, Hainan, China
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Suzuki JY, Amore TD, Calla B, Palmer NA, Scully ED, Sattler SE, Sarath G, Lichty JS, Myers RY, Keith LM, Matsumoto TK, Geib SM. Organ-specific transcriptome profiling of metabolic and pigment biosynthesis pathways in the floral ornamental progenitor species Anthurium amnicola Dressler. Sci Rep 2017; 7:1596. [PMID: 28473720 PMCID: PMC5431427 DOI: 10.1038/s41598-017-00808-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2016] [Accepted: 03/16/2017] [Indexed: 11/17/2022] Open
Abstract
Anthurium amnicola Dressler possesses a number of desirable and novel ornamental traits such as a purple-colored upright spathe, profuse flowering, and floral scent, some of which have been introgressed into modern Anthurium cultivars. As a first step in identifying genes associated with these traits, the transcriptome from root, leaf, spathe, and spadix from an accession of A. amnicola was assembled, resulting in 28,019 putative transcripts representing 19,458 unigenes. Genes involved in pigmentation, including those for the metabolism of chlorophyll and the biosynthesis of carotenoids, phenylpropanoids, and flavonoids were identified. The expression levels of one MYB transcription factor was highly correlated with naringenin 3-dioxygenase (F3H) and dihydroflavonol-4-reductase (DFR) in leaves, whereas a bHLH transcription factor was highly correlated with flavonoid 3′-monooxygenase (F3′H) and a DFR in spathes, suggesting that these two transcription factors might regulate flavonoid and anthocyanin synthesis in A. amnicola. Gene sequence and expression data from four major organs of A. amnicola provide novel basal information for understanding the genetic bases of ornamental traits and the determinants and evolution of form and function in the Araceae.
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Affiliation(s)
- Jon Y Suzuki
- USDA Agricultural Research Service, Daniel K. Inouye U.S. Pacific Basin Agricultural Research Center, Hilo, HI, 96720, USA.
| | - Teresita D Amore
- Department of Tropical Plant & Soil Sciences, College of Tropical Agriculture and Human Resources, University of Hawaii at Manoa, 3190 Maile Way Rm. 102, Honolulu, HI, 96822, USA
| | - Bernarda Calla
- USDA Agricultural Research Service, Daniel K. Inouye U.S. Pacific Basin Agricultural Research Center, Hilo, HI, 96720, USA.,Department of Entomology, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA
| | - Nathan A Palmer
- USDA Agricultural Research Service, Wheat, Sorghum, and Forage Research Unit, Lincoln, NE, 68583, USA
| | - Erin D Scully
- USDA Agricultural Research Service, Stored Product Insect and Engineering Research Unit, Manhattan, KS, 66502, USA
| | - Scott E Sattler
- USDA Agricultural Research Service, Wheat, Sorghum, and Forage Research Unit, Lincoln, NE, 68583, USA.,Department of Agronomy and Horticulture, University of Nebraska-Lincoln, Lincoln, NE, 68583, USA
| | - Gautam Sarath
- USDA Agricultural Research Service, Wheat, Sorghum, and Forage Research Unit, Lincoln, NE, 68583, USA.,Department of Agronomy and Horticulture, University of Nebraska-Lincoln, Lincoln, NE, 68583, USA
| | - Joanne S Lichty
- Department of Tropical Plant & Soil Sciences, College of Tropical Agriculture and Human Resources, University of Hawaii at Manoa, 3190 Maile Way Rm. 102, Honolulu, HI, 96822, USA
| | - Roxana Y Myers
- USDA Agricultural Research Service, Daniel K. Inouye U.S. Pacific Basin Agricultural Research Center, Hilo, HI, 96720, USA
| | - Lisa M Keith
- USDA Agricultural Research Service, Daniel K. Inouye U.S. Pacific Basin Agricultural Research Center, Hilo, HI, 96720, USA
| | - Tracie K Matsumoto
- USDA Agricultural Research Service, Daniel K. Inouye U.S. Pacific Basin Agricultural Research Center, Hilo, HI, 96720, USA
| | - Scott M Geib
- USDA Agricultural Research Service, Daniel K. Inouye U.S. Pacific Basin Agricultural Research Center, Hilo, HI, 96720, USA
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De Novo Assembly, Annotation, and Characterization of Root Transcriptomes of Three Caladium Cultivars with a Focus on Necrotrophic Pathogen Resistance/Defense-Related Genes. Int J Mol Sci 2017; 18:ijms18040712. [PMID: 28346370 PMCID: PMC5412298 DOI: 10.3390/ijms18040712] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2017] [Revised: 03/21/2017] [Accepted: 03/24/2017] [Indexed: 01/11/2023] Open
Abstract
Roots are vital to plant survival and crop yield, yet few efforts have been made to characterize the expressed genes in the roots of non-model plants (root transcriptomes). This study was conducted to sequence, assemble, annotate, and characterize the root transcriptomes of three caladium cultivars (Caladium × hortulanum) using RNA-Seq. The caladium cultivars used in this study have different levels of resistance to Pythiummyriotylum, the most damaging necrotrophic pathogen to caladium roots. Forty-six to 61 million clean reads were obtained for each caladium root transcriptome. De novo assembly of the reads resulted in approximately 130,000 unigenes. Based on bioinformatic analysis, 71,825 (52.3%) caladium unigenes were annotated for putative functions, 48,417 (67.4%) and 31,417 (72.7%) were assigned to Gene Ontology (GO) and Clusters of Orthologous Groups (COG), respectively, and 46,406 (64.6%) unigenes were assigned to 128 Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways. A total of 4518 distinct unigenes were observed only in Pythium-resistant "Candidum" roots, of which 98 seemed to be involved in disease resistance and defense responses. In addition, 28,837 simple sequence repeat sites and 44,628 single nucleotide polymorphism sites were identified among the three caladium cultivars. These root transcriptome data will be valuable for further genetic improvement of caladium and related aroids.
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Li C, Qiu J, Yang G, Huang S, Yin J. Isolation and characterization of a R2R3-MYB transcription factor gene related to anthocyanin biosynthesis in the spathes of Anthurium andraeanum (Hort.). PLANT CELL REPORTS 2016; 35:2151-65. [PMID: 27424029 DOI: 10.1007/s00299-016-2025-8] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2016] [Accepted: 07/10/2016] [Indexed: 06/06/2023]
Abstract
KEY MESSAGE A R2R3-MYB gene AaMYB2 was isolated from Anthurium andraeanum (Hort.) and was functionally characterized to be a positive transcriptional regulator for anthocyanin biosynthesis in the spathes and leaves. Spathe coloration is an important Anthurium andraeanum (Hort.) characteristic, which is mainly contributed by anthocyanins. R2R3-MYB transcription factors (TFs) are important regulators of anthocyanin biosynthesis in plants. Here we describe the identification and characterization of AaMYB2, a member in subgroup 6 of the R2R3-MYB TFs family, which correlated with anthocyanin biosynthesis in A. andraeanum. AaMYB2 was a nuclear-localization protein with positive transcriptional activity, and prominently expressed in the red spathes. Ectopic expression of AaMYB2 in tobacco led to anthocyanin accumulation and up-regulation of the early and late anthocyanin pathway genes, particularly NtDFR, NtANS, and NtUFGT, and the endogenous TF genes NtAn2 and NtAn1 in leaves. In the developing red spathes of 'Tropical' and 'Vitara', the expression of AaMYB2 was closely linked to anthocyanin accumulation, and co-expressed with AaCHS, AaF3H, and AaANS, the latter two of which were regarded as the potential targets of the R locus encoding a TF controlling spathe colors inheritance in anthurium. In addition, the transcription level of AaMYB2 in various cultivars with different color phenotypes showed that AaMYB2 was drastically expressed in the spathes from the red, pink, and purple cultivars, but hardly detected in the spathes from the white and green ones. Besides, AaMYB2 also showed higher expression in newly developmental leaves when anthocyanin was actively biosynthesized. Taken together, AaMYB2 positively related to anthocyanin biosynthesis in anthurium spathes and leaves, and appeared to regulate the expression of AaF3H, AaANS, and possibly AaCHS.
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Affiliation(s)
- Chonghui Li
- Tropical Crops Genetic Resources Institute, The Chinese Academy of Tropical Agricultural Sciences (CATAS)/Key Laboratory of Crop Gene Resources and Germplasm Enhancement in Southern China, Ministry of Agriculture, Danzhou, 571737, China
- The Engineering Technology Research Center of Tropical Ornamental Plant Germplasm Innovation and Utilization, Danzhou, 571737, Hainan Province, China
| | - Jian Qiu
- Rubber Research Institute, CATAS/Key Laboratory of Biology and Genetic Resources of Rubber Tree, Ministry of Agriculture, Danzhou, 571737, China
| | - Guangsui Yang
- Tropical Crops Genetic Resources Institute, The Chinese Academy of Tropical Agricultural Sciences (CATAS)/Key Laboratory of Crop Gene Resources and Germplasm Enhancement in Southern China, Ministry of Agriculture, Danzhou, 571737, China
- The Engineering Technology Research Center of Tropical Ornamental Plant Germplasm Innovation and Utilization, Danzhou, 571737, Hainan Province, China
| | - Surong Huang
- Tropical Crops Genetic Resources Institute, The Chinese Academy of Tropical Agricultural Sciences (CATAS)/Key Laboratory of Crop Gene Resources and Germplasm Enhancement in Southern China, Ministry of Agriculture, Danzhou, 571737, China
- The Engineering Technology Research Center of Tropical Ornamental Plant Germplasm Innovation and Utilization, Danzhou, 571737, Hainan Province, China
| | - Junmei Yin
- Tropical Crops Genetic Resources Institute, The Chinese Academy of Tropical Agricultural Sciences (CATAS)/Key Laboratory of Crop Gene Resources and Germplasm Enhancement in Southern China, Ministry of Agriculture, Danzhou, 571737, China.
- The Engineering Technology Research Center of Tropical Ornamental Plant Germplasm Innovation and Utilization, Danzhou, 571737, Hainan Province, China.
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9
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Jin X, Huang H, Wang L, Sun Y, Dai S. Transcriptomics and Metabolite Analysis Reveals the Molecular Mechanism of Anthocyanin Biosynthesis Branch Pathway in Different Senecio cruentus Cultivars. FRONTIERS IN PLANT SCIENCE 2016; 7:1307. [PMID: 27656188 PMCID: PMC5012328 DOI: 10.3389/fpls.2016.01307] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Accepted: 08/15/2016] [Indexed: 05/23/2023]
Abstract
The cyanidin (Cy), pelargonidin (Pg), and delphinidin (Dp) pathways are the three major branching anthocyanin biosynthesis pathways that regulate flavonoid metabolic flux and are responsible for red, orange, and blue flower colors, respectively. Different species have evolved to develop multiple regulation mechanisms that form the branched pathways. In the current study, five Senecio cruentus cultivars with different colors were investigated. We found that the white and yellow cultivars do not accumulate anthocyanin and that the blue, pink, and carmine cultivars mainly accumulate Dp, Pg, and Cy in differing densities. Subsequent transcriptome analysis determined that there were 43 unigenes encoding anthocyanin biosynthesis genes in the blue cultivar. We also combined chemical and transcriptomic analyses to investigate the major metabolic pathways that are related to the observed differences in flower pigmentation in the series of S. cruentus. The results showed that mutations of the ScbHLH17 and ScCHI1/2 coding regions abolish anthocyanin formation in the white and the yellow cultivars; the competition of the ScF3'H1, ScF3'5'H, and ScDFR1/2 genes for naringenin determines the differences in branching metabolic flux of the Cy, Dp, and Pg pathways. Our findings provide new insights into the regulation of anthocyanin branching and also supplement gene resources (including ScF3'5 'H, ScF3'H, and ScDFRs) for flower color modification of ornamentals.
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Affiliation(s)
- Xuehua Jin
- College of Landscape Architecture, Beijing Forestry UniversityBeijing, China
- Faculty of Architecture and City Planning, Kunming University of Science and TechnologyKunming, China
| | - He Huang
- College of Landscape Architecture, Beijing Forestry UniversityBeijing, China
| | - Lu Wang
- College of Landscape Architecture, Beijing Forestry UniversityBeijing, China
| | - Yi Sun
- College of Landscape Architecture, Beijing Forestry UniversityBeijing, China
| | - Silan Dai
- College of Landscape Architecture, Beijing Forestry UniversityBeijing, China
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Wei Z, Sun Z, Cui B, Zhang Q, Xiong M, Wang X, Zhou D. Transcriptome analysis of colored calla lily (Zantedeschia rehmannii Engl.) by Illumina sequencing: de novo assembly, annotation and EST-SSR marker development. PeerJ 2016; 4:e2378. [PMID: 27635342 PMCID: PMC5012260 DOI: 10.7717/peerj.2378] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2016] [Accepted: 07/29/2016] [Indexed: 11/20/2022] Open
Abstract
Colored calla lily is the short name for the species or hybrids in section Aestivae of genus Zantedeschia. It is currently one of the most popular flower plants in the world due to its beautiful flower spathe and long postharvest life. However, little genomic information and few molecular markers are available for its genetic improvement. Here, de novo transcriptome sequencing was performed to produce large transcript sequences for Z. rehmannii cv. ‘Rehmannii’ using an Illumina HiSeq 2000 instrument. More than 59.9 million cDNA sequence reads were obtained and assembled into 39,298 unigenes with an average length of 1,038 bp. Among these, 21,077 unigenes showed significant similarity to protein sequences in the non-redundant protein database (Nr) and in the Swiss-Prot, Gene Ontology (GO), Cluster of Orthologous Group (COG) and Kyoto Encyclopedia of Genes and Genomes (KEGG) databases. Moreover, a total of 117 unique transcripts were then defined that might regulate the flower spathe development of colored calla lily. Additionally, 9,933 simple sequence repeats (SSRs) and 7,162 single nucleotide polymorphisms (SNPs) were identified as putative molecular markers. High-quality primers for 200 SSR loci were designed and selected, of which 58 amplified reproducible amplicons were polymorphic among 21 accessions of colored calla lily. The sequence information and molecular markers in the present study will provide valuable resources for genetic diversity analysis, germplasm characterization and marker-assisted selection in the genus Zantedeschia.
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Affiliation(s)
- Zunzheng Wei
- Beijing Key Laboratory of Ornamental Plants Germplasm Innovation & Molecular Breeding, National Engineering Research Center for Floriculture and College of Landscape Architecture, Beijing Forestry University, Beijing, China.,Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (North China), Ministry of Agriculture, Key Laboratory of Urban Agriculture (North), Ministry of Agriculture, Beijing Vegetable Research Center, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Zhenzhen Sun
- Beijing Key Laboratory of Separation and Analysis in Biomedicine and Pharmaceuticals, Beijing Institute of Technology, Beijing, China
| | - Binbin Cui
- Department of Biology and Chemistry, Baoding University, Baoding, Hebei, China
| | - Qixiang Zhang
- Beijing Key Laboratory of Ornamental Plants Germplasm Innovation & Molecular Breeding, National Engineering Research Center for Floriculture and College of Landscape Architecture, Beijing Forestry University, Beijing, China
| | - Min Xiong
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (North China), Ministry of Agriculture, Key Laboratory of Urban Agriculture (North), Ministry of Agriculture, Beijing Vegetable Research Center, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Xian Wang
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (North China), Ministry of Agriculture, Key Laboratory of Urban Agriculture (North), Ministry of Agriculture, Beijing Vegetable Research Center, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Di Zhou
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (North China), Ministry of Agriculture, Key Laboratory of Urban Agriculture (North), Ministry of Agriculture, Beijing Vegetable Research Center, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
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11
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Su J, Zou X, Huang L, Bai T, Liu S, Yuan M, Chou SH, He YW, Wang H, He J. DgcA, a diguanylate cyclase from Xanthomonas oryzae pv. oryzae regulates bacterial pathogenicity on rice. Sci Rep 2016; 6:25978. [PMID: 27193392 PMCID: PMC4872155 DOI: 10.1038/srep25978] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2015] [Accepted: 04/26/2016] [Indexed: 12/28/2022] Open
Abstract
Xanthomonas oryzae pv. oryzae (Xoo) is the causal agent of rice blight disease as well as a serious phytopathogen worldwide. It is also one of the model organisms for studying bacteria-plant interactions. Current progress in bacterial signal transduction pathways has identified cyclic di-GMP as a major second messenger molecule in controlling Xanthomonas pathogenicity. However, it still remains largely unclear how c-di-GMP regulates the secretion of bacterial virulence factors in Xoo. In this study, we focused on the important roles played by DgcA (XOO3988), one of our previously identified diguanylate cyclases in Xoo, through further investigating the phenotypes of several dgcA-related mutants, namely, the dgcA-knockout mutant ΔdgcA, the dgcA overexpression strain OdgcA, the dgcA complemented strain CdgcA and the wild-type strain. The results showed that dgcA negatively affected virulence, EPS production, bacterial autoaggregation and motility, but positively triggered biofilm formation via modulating the intracellular c-di-GMP levels. RNA-seq data further identified 349 differentially expressed genes controlled by DgcA, providing a foundation for a more solid understanding of the signal transduction pathways in Xoo. Collectively, the present study highlights DgcA as a major regulator of Xoo virulence, and can serve as a potential target for preventing rice blight diseases.
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Affiliation(s)
- Jianmei Su
- State Key Laboratory of Agricultural Microbiology, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Xia Zou
- State Key Laboratory of Agricultural Microbiology, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Liangbo Huang
- State Key Laboratory of Agricultural Microbiology, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Tenglong Bai
- State Key Laboratory of Agricultural Microbiology, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Shu Liu
- State Key Laboratory of Agricultural Microbiology, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Meng Yuan
- National Key Laboratory of Crop Genetic Improvement, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Shan-Ho Chou
- Institute of Biochemistry, and NCHU Agricultural Biotechnology Center, National Chung Hsing University, Taichung 40227, Taiwan
| | - Ya-Wen He
- State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Haihong Wang
- College of Life Sciences, South China Agricultural University, Guangzhou, Guangdong 510650, China
| | - Jin He
- State Key Laboratory of Agricultural Microbiology, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China
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Fang ZZ, Zhou DR, Ye XF, Jiang CC, Pan SL. Identification of Candidate Anthocyanin-Related Genes by Transcriptomic Analysis of 'Furongli' Plum (Prunus salicina Lindl.) during Fruit Ripening Using RNA-Seq. FRONTIERS IN PLANT SCIENCE 2016; 7:1338. [PMID: 27630660 PMCID: PMC5005409 DOI: 10.3389/fpls.2016.01338] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2016] [Accepted: 08/19/2016] [Indexed: 05/08/2023]
Abstract
Anthocyanins are important pigments and are responsible for red coloration in plums. However, little is known about the molecular mechanisms underlying anthocyanin accumulation in plum fruits. In this study, the RNA-seq technique was used to analyze the transcriptomic changes during fruit ripening in the red-fleshed plum (Prunus salicina Lindl.) cultivar 'Furongli'. Over 161 million high-quality reads were assembled into 52,093 unigenes and 49.4% of these were annotated using public databases. Of these, 25,681 unigenes had significant hits to the sequences in the NCBI Nr database, 17,203 unigenes showed significant similarity to known proteins in the Swiss-Prot database and 5816 and 8585 unigenes had significant similarity to existing sequences in the Kyoto Encyclopedia of Genes and Genomes and the Cluster of Orthologous Groups databases, respectively. A total of 3548 unigenes were differentially expressed during fruit ripening and 119 of these were annotated as involved in "biosynthesis of other secondary metabolites." Biological pathway analysis and gene ontology term enrichment analysis revealed that 13 differentially expressed genes are involved in anthocyanin biosynthesis. Furthermore, transcription factors such as MYB and bHLH, which may control anthocyanin biosynthesis, were identified through coexpression analysis of transcription factors, and structural genes. Real-time qPCR analysis of candidate genes showed good correlation with the transcriptome data. These results contribute to our understanding of the molecular mechanisms underlying anthocyanin biosynthesis in plum flesh. The transcriptomic data generated in this study provide a basis for further studies of fruit ripening in plum.
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