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Gou N, Zhu X, Yin M, Zhao H, Bai H, Jiang N, Xu W, Wang C, Zhang Y, Wuyun T. 15- cis-Phytoene Desaturase and 15- cis-Phytoene Synthase Can Catalyze the Synthesis of β-Carotene and Influence the Color of Apricot Pulp. Foods 2024; 13:300. [PMID: 38254601 PMCID: PMC10815377 DOI: 10.3390/foods13020300] [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: 12/14/2023] [Revised: 01/12/2024] [Accepted: 01/13/2024] [Indexed: 01/24/2024] Open
Abstract
Fruit color affects its commercial value. β-carotene is the pigment that provides color for many fruits and vegetables. However, the molecular mechanism of β-carotene metabolism during apricot ripening is largely unknown. Here, we investigated whether β-carotene content affects apricot fruit color. First, the differences in β-carotene content between orange apricot 'JTY' and white apricot 'X15' during nine developmental stages (S1-S9) were compared. β-carotene contents highly significantly differed between 'JTY' and 'X15' from S5 (color transition stage) onwards. Whole-transcriptome analysis showed that the β-carotene synthesis genes 15-cis-phytoene desaturase (PaPDS) and 15-cis-phytoene synthase (PaPSY) significantly differed between the two cultivars during the color transition stage. There was a 5 bp deletion in exon 11 of PaPDS in 'X15', which led to early termination of amino acid translation. Gene overexpression and virus-induced silencing analysis showed that truncated PaPDS disrupted the β-carotene biosynthesis pathway in apricot pulp, resulting in decreased β-carotene content and a white phenotype. Furthermore, virus-induced silencing analysis showed that PaPSY was also a key gene in β-carotene biosynthesis. These findings provide new insights into the molecular regulation of apricot carotenoids and provide a theoretical reference for breeding new cultivars of apricot.
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Affiliation(s)
- Ningning Gou
- Kernel-Apricot Engineering and Technology Research Center of State Forestry and Grassland Administration, Research Institute of Non-Timber Forestry, Chinese Academy of Forestry, State Key Laboratory of Tree Genetics and Breeding, Zhengzhou 450003, China; (N.G.); (M.Y.); (H.Z.); (H.B.); (N.J.); (W.X.); (C.W.); (Y.Z.)
| | - Xuchun Zhu
- School of Food and Health, Beijing Technology and Business University, Beijing 100037, China;
| | - Mingyu Yin
- Kernel-Apricot Engineering and Technology Research Center of State Forestry and Grassland Administration, Research Institute of Non-Timber Forestry, Chinese Academy of Forestry, State Key Laboratory of Tree Genetics and Breeding, Zhengzhou 450003, China; (N.G.); (M.Y.); (H.Z.); (H.B.); (N.J.); (W.X.); (C.W.); (Y.Z.)
- Institute of Ecological Conservation and Restoration, Chinese Academy of Forestry, Key Laboratory of Desert Ecosystem and Global Change, National Forestry and Grassland Administration, Beijing 100091, China
| | - Han Zhao
- Kernel-Apricot Engineering and Technology Research Center of State Forestry and Grassland Administration, Research Institute of Non-Timber Forestry, Chinese Academy of Forestry, State Key Laboratory of Tree Genetics and Breeding, Zhengzhou 450003, China; (N.G.); (M.Y.); (H.Z.); (H.B.); (N.J.); (W.X.); (C.W.); (Y.Z.)
| | - Haikun Bai
- Kernel-Apricot Engineering and Technology Research Center of State Forestry and Grassland Administration, Research Institute of Non-Timber Forestry, Chinese Academy of Forestry, State Key Laboratory of Tree Genetics and Breeding, Zhengzhou 450003, China; (N.G.); (M.Y.); (H.Z.); (H.B.); (N.J.); (W.X.); (C.W.); (Y.Z.)
| | - Nan Jiang
- Kernel-Apricot Engineering and Technology Research Center of State Forestry and Grassland Administration, Research Institute of Non-Timber Forestry, Chinese Academy of Forestry, State Key Laboratory of Tree Genetics and Breeding, Zhengzhou 450003, China; (N.G.); (M.Y.); (H.Z.); (H.B.); (N.J.); (W.X.); (C.W.); (Y.Z.)
| | - Wanyu Xu
- Kernel-Apricot Engineering and Technology Research Center of State Forestry and Grassland Administration, Research Institute of Non-Timber Forestry, Chinese Academy of Forestry, State Key Laboratory of Tree Genetics and Breeding, Zhengzhou 450003, China; (N.G.); (M.Y.); (H.Z.); (H.B.); (N.J.); (W.X.); (C.W.); (Y.Z.)
| | - Chu Wang
- Kernel-Apricot Engineering and Technology Research Center of State Forestry and Grassland Administration, Research Institute of Non-Timber Forestry, Chinese Academy of Forestry, State Key Laboratory of Tree Genetics and Breeding, Zhengzhou 450003, China; (N.G.); (M.Y.); (H.Z.); (H.B.); (N.J.); (W.X.); (C.W.); (Y.Z.)
| | - Yujing Zhang
- Kernel-Apricot Engineering and Technology Research Center of State Forestry and Grassland Administration, Research Institute of Non-Timber Forestry, Chinese Academy of Forestry, State Key Laboratory of Tree Genetics and Breeding, Zhengzhou 450003, China; (N.G.); (M.Y.); (H.Z.); (H.B.); (N.J.); (W.X.); (C.W.); (Y.Z.)
| | - Tana Wuyun
- Kernel-Apricot Engineering and Technology Research Center of State Forestry and Grassland Administration, Research Institute of Non-Timber Forestry, Chinese Academy of Forestry, State Key Laboratory of Tree Genetics and Breeding, Zhengzhou 450003, China; (N.G.); (M.Y.); (H.Z.); (H.B.); (N.J.); (W.X.); (C.W.); (Y.Z.)
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Cruet-Burgos C, Rhodes DH. Unraveling transcriptomics of sorghum grain carotenoids: a step forward for biofortification. BMC Genomics 2023; 24:233. [PMID: 37138226 PMCID: PMC10157909 DOI: 10.1186/s12864-023-09323-3] [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: 10/05/2022] [Accepted: 04/20/2023] [Indexed: 05/05/2023] Open
Abstract
BACKGROUND Sorghum (Sorghum bicolor [L.] Moench) is a promising target for pro-vitamin A biofortification as it is a global staple crop, particularly in regions where vitamin A deficiency is prevalent. As with most cereal grains, carotenoid concentrations are low in sorghum, and breeding could be a feasible strategy to increase pro-vitamin A carotenoids to biologically relevant concentrations. However, there are knowledge gaps in the biosynthesis and regulation of sorghum grain carotenoids, which can limit breeding effectiveness. The aim of this research was to gain an understanding of the transcriptional regulation of a priori candidate genes in carotenoid precursor, biosynthesis, and degradation pathways. RESULTS We used RNA sequencing of grain to compare the transcriptional profile of four sorghum accessions with contrasting carotenoid profiles through grain development. Most a priori candidate genes involved in the precursor MEP, carotenoid biosynthesis, and carotenoid degradation pathways were found to be differentially expressed between sorghum grain developmental stages. There was also differential expression of some of the a priori candidate genes between high and low carotenoid content groups at each developmental time point. Among these, we propose geranyl geranyl pyrophosphate synthase (GGPPS), phytoene synthase (PSY), and phytoene desaturase (PDS) as promising targets for pro-vitamin A carotenoid biofortification efforts in sorghum grain. CONCLUSIONS A deeper understanding of the controls underlying biosynthesis and degradation of sorghum grain carotenoids is needed to advance biofortification efforts. This study provides the first insights into the regulation of sorghum grain carotenoid biosynthesis and degradation, suggesting potential gene targets to prioritize for molecular breeding.
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Affiliation(s)
- Clara Cruet-Burgos
- Department of Horticulture & Landscape Architecture, Colorado State University, Fort Collins, CO, 80523, USA
| | - Davina H Rhodes
- Department of Horticulture & Landscape Architecture, Colorado State University, Fort Collins, CO, 80523, USA.
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Niaz M, Zhang B, Zhang Y, Yan X, Yuan M, Cheng Y, Lv G, Fadlalla T, Zhao L, Sun C, Chen F. Genetic and molecular basis of carotenoid metabolism in cereals. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2023; 136:63. [PMID: 36939900 DOI: 10.1007/s00122-023-04336-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Accepted: 02/28/2023] [Indexed: 06/18/2023]
Abstract
Carotenoids are vital pigments for higher plants and play a crucial function in photosynthesis and photoprotection. Carotenoids are precursors of vitamin A synthesis and contribute to human nutrition and health. However, cereal grain endosperm contains a minor carotenoid measure and a scarce supply of provitamin A content. Therefore, improving the carotenoids in cereal grain is of major importance. Carotenoid content is governed by multiple candidate genes with their additive effects. Studies on genes related to carotenoid metabolism in cereals would increase the knowledge of potential metabolic steps of carotenoids and enhance the quality of crop plants. Recognizing the metabolism and carotenoid accumulation in various staple cereal crops over the last few decades has broadened our perspective on the interdisciplinary regulation of carotenogenesis. Meanwhile, the amelioration in metabolic engineering approaches has been exploited to step up the level of carotenoid and valuable industrial metabolites in many crops, but wheat is still considerable in this matter. In this study, we present a comprehensive overview of the consequences of biosynthetic and catabolic genes on carotenoid biosynthesis, current improvements in regulatory disciplines of carotenogenesis, and metabolic engineering of carotenoids. A panoptic and deeper understanding of the regulatory mechanisms of carotenoid metabolism and genetic manipulation (genome selection and gene editing) will be useful in improving the carotenoid content of cereals.
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Affiliation(s)
- Mohsin Niaz
- National Key Laboratory of Wheat and Maize Crop Science / CIMMYT-China Wheat and Maize Joint Research Center /Agronomy College, Henan Agricultural University, 15 Longzihu College District, Zhengzhou, 450046, China
| | - Bingyang Zhang
- National Key Laboratory of Wheat and Maize Crop Science / CIMMYT-China Wheat and Maize Joint Research Center /Agronomy College, Henan Agricultural University, 15 Longzihu College District, Zhengzhou, 450046, China
| | - Yixiao Zhang
- National Key Laboratory of Wheat and Maize Crop Science / CIMMYT-China Wheat and Maize Joint Research Center /Agronomy College, Henan Agricultural University, 15 Longzihu College District, Zhengzhou, 450046, China
| | - Xiangning Yan
- National Key Laboratory of Wheat and Maize Crop Science / CIMMYT-China Wheat and Maize Joint Research Center /Agronomy College, Henan Agricultural University, 15 Longzihu College District, Zhengzhou, 450046, China
| | - Minjie Yuan
- National Key Laboratory of Wheat and Maize Crop Science / CIMMYT-China Wheat and Maize Joint Research Center /Agronomy College, Henan Agricultural University, 15 Longzihu College District, Zhengzhou, 450046, China
| | - YongZhen Cheng
- National Key Laboratory of Wheat and Maize Crop Science / CIMMYT-China Wheat and Maize Joint Research Center /Agronomy College, Henan Agricultural University, 15 Longzihu College District, Zhengzhou, 450046, China
| | - Guoguo Lv
- National Key Laboratory of Wheat and Maize Crop Science / CIMMYT-China Wheat and Maize Joint Research Center /Agronomy College, Henan Agricultural University, 15 Longzihu College District, Zhengzhou, 450046, China
| | - Tarig Fadlalla
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, 430070, China
- Faculty of Agriculture, Nile valley University, Atbara, 346, Sudan
| | - Lei Zhao
- National Key Laboratory of Wheat and Maize Crop Science / CIMMYT-China Wheat and Maize Joint Research Center /Agronomy College, Henan Agricultural University, 15 Longzihu College District, Zhengzhou, 450046, China
| | - Congwei Sun
- National Key Laboratory of Wheat and Maize Crop Science / CIMMYT-China Wheat and Maize Joint Research Center /Agronomy College, Henan Agricultural University, 15 Longzihu College District, Zhengzhou, 450046, China
| | - Feng Chen
- National Key Laboratory of Wheat and Maize Crop Science / CIMMYT-China Wheat and Maize Joint Research Center /Agronomy College, Henan Agricultural University, 15 Longzihu College District, Zhengzhou, 450046, China.
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He L, Cheng L, Wang J, Liu J, Cheng J, Yang Z, Cao R, Han Y, Li H, Zhang B. Carotenoid Cleavage Dioxygenase 1 Catalyzes Lutein Degradation To Influence Carotenoid Accumulation and Color Development in Foxtail Millet Grains. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:9283-9294. [PMID: 35876162 DOI: 10.1021/acs.jafc.2c01951] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Foxtail millet is a minor but economically important crop in certain regions of the world. Millet color is often used to judge grain quality, yet the molecular determinants of millet coloration remain unclear. Here, we explored the relationship between SiCCD1 and millet coloration in yellow and white millet varieties. Carotenoid levels declined with grain maturation and were negatively correlated with SiCCD1 expression, which was significantly higher in white millet as compared to yellow millet during the color development stage. Cloning of the SiCCD1 promoter and CDS sequences from these different millet varieties revealed the presence of two additional cis-regulatory elements within the SiCCD1 promoter in white millet varieties, including an enhancer-like GC motif element associated with anoxic specific inducibility and a GCN4-motif element associated with endosperm expression. Dual-luciferase reporter assays confirmed that SiCCD1 promoter fragments containing these additional cis-acting elements derived from white millet varieties were significantly more active than those from yellow millet varieties, consistent with the observed SiCCD1 expression patterns. Further in vitro enzyme detection assays confirmed that SiCCD1 primarily targets and degrades lutein. Together, these data suggest that SiCCD1 promoter variation was a key factor associated with the observed differences in SiCCD1 expression, which in turn led to the difference in millet coloration.
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Affiliation(s)
- Lu He
- College of Agriculture, Shanxi Agricultural University, Taigu 030801, China
- Maize Research Institute, Shanxi Agricultural University, Xinzhou 034000, China
| | - Lu Cheng
- College of Agriculture, Shanxi Agricultural University, Taigu 030801, China
| | - Junjie Wang
- College of Agriculture, Shanxi Agricultural University, Taigu 030801, China
| | - Jing Liu
- College of Agriculture, Shanxi Agricultural University, Taigu 030801, China
| | - Jinjin Cheng
- College of Agriculture, Shanxi Agricultural University, Taigu 030801, China
| | - Zhirong Yang
- Department of Foundation, Shanxi Agricultural University, Taigu 030801, China
| | - Rui Cao
- Shanxi Biological Research Institute Co., Ltd, Taiyuan 030000, China
| | - Yuanhuai Han
- College of Agriculture, Shanxi Agricultural University, Taigu 030801, China
- Institute of Agricultural Bioengineering, Shanxi Agricultural University, Taigu 030801, China
- Ministerial and Provincial Co-Innovation Centre for Endemic Crops Production with High-quality and Efficiency in Loess Plateau, Shanxi Agricultural University, Taigu 030801, China
| | - Hongying Li
- College of Agriculture, Shanxi Agricultural University, Taigu 030801, China
- Institute of Agricultural Bioengineering, Shanxi Agricultural University, Taigu 030801, China
| | - Bin Zhang
- College of Agriculture, Shanxi Agricultural University, Taigu 030801, China
- Institute of Agricultural Bioengineering, Shanxi Agricultural University, Taigu 030801, China
- Ministerial and Provincial Co-Innovation Centre for Endemic Crops Production with High-quality and Efficiency in Loess Plateau, Shanxi Agricultural University, Taigu 030801, China
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Calugar RE, Muntean E, Varga A, Vana CD, Has VV, Tritean N, Ceclan LA. Improving the Carotenoid Content in Maize by Using Isonuclear Lines. PLANTS (BASEL, SWITZERLAND) 2022; 11:1632. [PMID: 35807583 PMCID: PMC9269311 DOI: 10.3390/plants11131632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Revised: 05/30/2022] [Accepted: 06/20/2022] [Indexed: 06/15/2023]
Abstract
Carotenoids are important biologically active compounds in the human diet due to their role in maintaining a proper health status. Maize (Zea mays L.) is one of the main crops worldwide, in terms of production quantity, yield and harvested area, as it is also an important source of carotenoids in human nutrition worldwide. Increasing the carotenoid content of maize grains is one of the major targets of the research into maize breeding; in this context, the aim of this study was to establish the influence of some fertile cytoplasm on the carotenoid content in inbred lines and hybrids. Twenty-five isonuclear lines and 100 hybrids were studied for the genetic determinism involved in the transmission of four target carotenoids: lutein, zeaxanthin, β-cryptoxanthin and β-carotene. The analysis of carotenoids was carried out using high performance liquid chromatography using a Flexar system with UV-VIS detection. The obtained data revealed that the cytoplasms did not have a significant influence on the carotenoid content of the inbred lines; larger differences were attributed to the cytoplasm × nucleus interaction. For hybrids, the cytoplasmic nuclear interactions have a significant influence on the content of lutein, zeaxanthin and β-cryptoxanthin. For the cytoplasm × nucleus × tester interactions, significant differences were identified for all traits.
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Affiliation(s)
- Roxana Elena Calugar
- Agricultural Research and Development Station Turda, Agriculturii 27, 401100 Turda, Romania; (R.E.C.); (A.V.); (C.D.V.); (V.V.H.); (L.A.C.)
| | - Edward Muntean
- Department of Food Science, Faculty of Food Science and Technology, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, 3-5 Mănăştur St., 400372 Cluj-Napoca, Romania
| | - Andrei Varga
- Agricultural Research and Development Station Turda, Agriculturii 27, 401100 Turda, Romania; (R.E.C.); (A.V.); (C.D.V.); (V.V.H.); (L.A.C.)
| | - Carmen Daniela Vana
- Agricultural Research and Development Station Turda, Agriculturii 27, 401100 Turda, Romania; (R.E.C.); (A.V.); (C.D.V.); (V.V.H.); (L.A.C.)
| | - Voichita Virginia Has
- Agricultural Research and Development Station Turda, Agriculturii 27, 401100 Turda, Romania; (R.E.C.); (A.V.); (C.D.V.); (V.V.H.); (L.A.C.)
| | - Nicolae Tritean
- Agricultural Research and Development Station Turda, Agriculturii 27, 401100 Turda, Romania; (R.E.C.); (A.V.); (C.D.V.); (V.V.H.); (L.A.C.)
| | - Loredana Anca Ceclan
- Agricultural Research and Development Station Turda, Agriculturii 27, 401100 Turda, Romania; (R.E.C.); (A.V.); (C.D.V.); (V.V.H.); (L.A.C.)
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Baveja A, Chhabra R, Panda KK, Muthusamy V, Mehta BK, Mishra SJ, Zunjare RU, Hossain F. Expression analysis of opaque2, crtRB1 and shrunken2 genes during different stages of kernel development in biofortified sweet corn. J Cereal Sci 2022. [DOI: 10.1016/j.jcs.2022.103466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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7
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Elisa DH, Marcela GM, Janet Alejandra GU, Martha Elena DH. The nutraceutical value of maize (Zea mays L.) landraces and the determinants of its variability: A review. J Cereal Sci 2022. [DOI: 10.1016/j.jcs.2021.103399] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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8
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Flowerika, Thakur N, Tiwari S. Correlation of carotenoid accumulation and expression pattern of carotenoid biosynthetic pathway genes in Indian wheat varieties. J Cereal Sci 2021. [DOI: 10.1016/j.jcs.2021.103303] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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Sushree Shyamli P, Rana S, Suranjika S, Muthamilarasan M, Parida A, Prasad M. Genetic determinants of micronutrient traits in graminaceous crops to combat hidden hunger. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2021; 134:3147-3165. [PMID: 34091694 DOI: 10.1007/s00122-021-03878-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Accepted: 05/29/2021] [Indexed: 06/12/2023]
Abstract
KEY MESSAGE Improving the nutritional content of graminaceous crops is imperative to ensure nutritional security, wherein omics approaches play pivotal roles in dissecting this complex trait and contributing to trait improvement. Micronutrients regulate the metabolic processes to ensure the normal functioning of the biological system in all living organisms. Micronutrient deficiency, thereby, can be detrimental that can result in serious health issues. Grains of graminaceous crops serve as an important source of micronutrients to the human population; however, the rise in hidden hunger and malnutrition indicates an insufficiency in meeting the nutritional requirements. Improving the elemental composition and nutritional value of the graminaceous crops using conventional and biotechnological approaches is imperative to address this issue. Identifying the genetic determinants underlying the micronutrient biosynthesis and accumulation is the first step toward achieving this goal. Genetic and genomic dissection of this complex trait has been accomplished in major cereals, and several genes, alleles, and QTLs underlying grain micronutrient content were identified and characterized. However, no comprehensive study has been reported on minor cereals such as small millets, which are rich in micronutrients and other bioactive compounds. A comparative narrative on the reports available in major and minor Graminaceae species will illustrate the knowledge gained from studying the micronutrient traits in major cereals and provides a roadmap for dissecting this trait in other minor species, including millets. In this context, this review explains the progress made in studying micronutrient traits in major cereals and millets using omics approaches. Moreover, it provides insights into deploying integrated omics approaches and strategies for genetic improvement in micronutrient traits in graminaceous crops.
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Affiliation(s)
- P Sushree Shyamli
- Institute of Life Sciences, NALCO Square, Chandrasekharpur, Bhubaneswar, Odisha, 751023, India
- Regional Centre for Biotechnology, National Capital Region Biotech Science Cluster, Faridabad, Haryana (NCR Delhi), 121001, India
| | - Sumi Rana
- Repository of Tomato Genomics Resources, Department of Plant Sciences, School of Life Sciences, University of Hyderabad, Hyderabad, Telangana, 500046, India
| | - Sandhya Suranjika
- Institute of Life Sciences, NALCO Square, Chandrasekharpur, Bhubaneswar, Odisha, 751023, India
- School of Biotechnology, Kalinga Institute of Industrial Technology, Bhubaneswar, Odisha, 751024, India
| | - Mehanathan Muthamilarasan
- Repository of Tomato Genomics Resources, Department of Plant Sciences, School of Life Sciences, University of Hyderabad, Hyderabad, Telangana, 500046, India
| | - Ajay Parida
- Institute of Life Sciences, NALCO Square, Chandrasekharpur, Bhubaneswar, Odisha, 751023, India.
| | - Manoj Prasad
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi, 110067, India.
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10
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Mehta BK, Chhabra R, Muthusamy V, Zunjare RU, Baveja A, Chauhan HS, Prakash NR, Chalam VC, Singh AK, Hossain F. Expression analysis of β-carotene hydroxylase1 and opaque2 genes governing accumulation of provitamin-A, lysine and tryptophan during kernel development in biofortified sweet corn. 3 Biotech 2021; 11:325. [PMID: 34194909 DOI: 10.1007/s13205-021-02837-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Accepted: 05/07/2021] [Indexed: 12/01/2022] Open
Abstract
Traditional sweet corn possesses low levels of provitamin-A (proA), lysine and tryptophan. Mutant version of β-carotene hydroxylase1 (crtRB1) gene affecting the accumulation of β-carotene (BC), β-cryptoxanthin (BCX) and proA, and opaque2 (o2) gene governing the enhancement of lysine and tryptophan were introgressed together into elite sweet corn inbreds through marker-assisted selection. Here, we analyzed the expression pattern of crtRB1 and o2 genes among introgressed and traditional sweet corn inbreds at 20-, 24- and 28-days after pollination (DAP). The introgressed inbreds possessed two- to sevenfolds higher BC, BCX, proA, lysine and tryptophan compared to their original inbreds. However, all the nutrients attained the peak at 20-DAP (BC: 9.95 µg/g, BCX: 8.21 µg/g, proA: 14.05 µg/g, lysine: 0.301%, tryptophan: 0.074%), which gradually reduced through 24-DAP (BC: 8.24 µg/g, BCX: 7.53 µg/g, proA: 12.01 µg/g, lysine: 0.273%, tryptophan: 0.057%) and 28-DAP (BC: 5.84 µg/g, BCX: 5.82 µg/g, proA: 8.75 µg/g, lysine: 0.202%, tryptophan: 0.037%). Biofortified sweet corn inbreds possessed significantly lower expression levels of crtRB1 (4.1-fold) and o2 (2.2-fold) compared to their wild type alleles in traditional sweet corn inbreds across DAPs. The expression of crtRB1 and o2 increased from 20-DAP to attain the highest peak at 24-DAP, and further decreased by 28-DAP. The transcript levels of crtRB1 were negatively correlated with BC (r = - 0.83), BCX (r = - 0.79) and proA (r = - 0.83) across dates of harvest. Lysine (r = - 0.83) and tryptophan (r = - 0.73) were also inversely associated with o2 transcript levels. This is the first report on expression of crtRB1 and o2 genes during kernel development in biofortified sweet corn. This information holds immense promise in understanding the dynamics of gene-regulation during kernel development in sweet corn.
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Affiliation(s)
- Brijesh Kumar Mehta
- ICAR-Indian Agricultural Research Institute, New Delhi, 110012 India
- Present Address: ICAR-Indian Grassland and Fodder Research Institute, Jhansi, 284003 India
| | - Rashmi Chhabra
- ICAR-Indian Agricultural Research Institute, New Delhi, 110012 India
| | - Vignesh Muthusamy
- ICAR-Indian Agricultural Research Institute, New Delhi, 110012 India
| | | | - Aanchal Baveja
- ICAR-Indian Agricultural Research Institute, New Delhi, 110012 India
| | | | | | | | - Ashok Kumar Singh
- ICAR-Indian Agricultural Research Institute, New Delhi, 110012 India
| | - Firoz Hossain
- ICAR-Indian Agricultural Research Institute, New Delhi, 110012 India
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Roorkiwal M, Pandey S, Thavarajah D, Hemalatha R, Varshney RK. Molecular Mechanisms and Biochemical Pathways for Micronutrient Acquisition and Storage in Legumes to Support Biofortification for Nutritional Security. FRONTIERS IN PLANT SCIENCE 2021; 12:682842. [PMID: 34163513 PMCID: PMC8215609 DOI: 10.3389/fpls.2021.682842] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Accepted: 05/06/2021] [Indexed: 05/10/2023]
Abstract
The world faces a grave situation of nutrient deficiency as a consequence of increased uptake of calorie-rich food that threaten nutritional security. More than half the world's population is affected by different forms of malnutrition. Unhealthy diets associated with poor nutrition carry a significant risk of developing non-communicable diseases, leading to a high mortality rate. Although considerable efforts have been made in agriculture to increase nutrient content in cereals, the successes are insufficient. The number of people affected by different forms of malnutrition has not decreased much in the recent past. While legumes are an integral part of the food system and widely grown in sub-Saharan Africa and South Asia, only limited efforts have been made to increase their nutrient content in these regions. Genetic variation for a majority of nutritional traits that ensure nutritional security in adverse conditions exists in the germplasm pool of legume crops. This diversity can be utilized by selective breeding for increased nutrients in seeds. The targeted identification of precise factors related to nutritional traits and their utilization in a breeding program can help mitigate malnutrition. The principal objective of this review is to present the molecular mechanisms of nutrient acquisition, transport and metabolism to support a biofortification strategy in legume crops to contribute to addressing malnutrition.
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Affiliation(s)
- Manish Roorkiwal
- International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Hyderabad, India
- The UWA Institute of Agriculture, The University of Western Australia, Perth, WA, Australia
| | - Sarita Pandey
- International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Hyderabad, India
| | - Dil Thavarajah
- Plant and Environmental Sciences, Poole Agricultural Center, Clemson University, Clemson, SC, United States
| | - R. Hemalatha
- ICMR-National Institute of Nutrition (NIN), Hyderabad, India
| | - Rajeev K. Varshney
- International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Hyderabad, India
- The UWA Institute of Agriculture, The University of Western Australia, Perth, WA, Australia
- State Agricultural Biotechnology Centre, Centre for Crop and Food Innovation, Murdoch University, Murdoch, WA, Australia
- *Correspondence: Rajeev K. Varshney, ;
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12
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Mehta BK, Muthusamy V, Baveja A, Chauhan HS, Chhabra R, Bhatt V, Chand G, Zunjare RU, Singh AK, Hossain F. Composition analysis of lysine, tryptophan and provitamin-A during different stages of kernel development in biofortified sweet corn. J Food Compost Anal 2020. [DOI: 10.1016/j.jfca.2020.103625] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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13
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Sahu A, Das A, Saikia K, Barah P. Temperature differentially modulates the transcriptome response in Oryza sativa to Xanthomonas oryzae pv. oryzae infection. Genomics 2020; 112:4842-4852. [PMID: 32896629 DOI: 10.1016/j.ygeno.2020.08.028] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Revised: 02/19/2020] [Accepted: 08/21/2020] [Indexed: 01/17/2023]
Abstract
Bacterial blight is caused by the pathogen Xanthomonas oryzae pv. oryzae (Xoo). Genome scale integrative analysis on the interaction of high and low temperatures on the molecular response signature in rice during the Xoo infection has not been conducted yet. We have analysed a unique RNA-Seq dataset generated on the susceptible rice variety IR24 under combined exposure of Xoo with low 29/21 °C (day/night) and high 35/31 °C (day/night) temperatures. Differentially regulated key genes and pathways in rice plants during both the stress conditions were identified. Differential dynamics of the regulatory network topology showed that WRKY and ERF families of transcription factors play a crucial role during signal crosstalk events in rice plants while responding to combined exposure of Xoo with low temperature vs. Xoo with high temperatures. Our study suggests that upon onset of high temperature, rice plants tend to switch its focus from defence response towards growth and reproduction.
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Affiliation(s)
- Ankur Sahu
- Department of Molecular Biology and Biotechnology, Tezpur University, Napaam, Sonitpur, Assam 784028, India
| | - Akash Das
- Department of Molecular Biology and Biotechnology, Tezpur University, Napaam, Sonitpur, Assam 784028, India
| | - Katherine Saikia
- Department of Molecular Biology and Biotechnology, Tezpur University, Napaam, Sonitpur, Assam 784028, India
| | - Pankaj Barah
- Department of Molecular Biology and Biotechnology, Tezpur University, Napaam, Sonitpur, Assam 784028, India.
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14
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Gálvez Ranilla L. The Application of Metabolomics for the Study of Cereal Corn ( Zea mays L.). Metabolites 2020; 10:E300. [PMID: 32717792 PMCID: PMC7463750 DOI: 10.3390/metabo10080300] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Revised: 07/17/2020] [Accepted: 07/20/2020] [Indexed: 12/11/2022] Open
Abstract
Corn (Zea mays L.) is an important cereal crop indigenous to the Americas, where its genetic biodiversity is still preserved, especially among native populations from Mesoamerica and South America. The use of metabolomics in corn has mainly focused on understanding the potential differences of corn metabolomes under different biotic and abiotic stresses or to evaluate the influence of genetic and environmental factors. The increase of diet-linked non-communicable diseases has increased the interest to optimize the content of bioactive secondary metabolites in current corn breeding programs to produce novel functional foods. This review provides perspectives on the role of metabolomics in the characterization of health-relevant metabolites in corn biodiversity and emphasizes the integration of metabolomics in breeding strategies targeting the enrichment of phenolic bioactive metabolites such as anthocyanins in corn kernels.
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Affiliation(s)
- Lena Gálvez Ranilla
- Laboratory of Research in Food Science, Universidad Catolica de Santa Maria, Urb. San Jose s/n, 04013 Arequipa, Peru
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15
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Ashokkumar K, Govindaraj M, Karthikeyan A, Shobhana VG, Warkentin TD. Genomics-Integrated Breeding for Carotenoids and Folates in Staple Cereal Grains to Reduce Malnutrition. Front Genet 2020; 11:414. [PMID: 32547594 PMCID: PMC7274173 DOI: 10.3389/fgene.2020.00414] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Accepted: 04/01/2020] [Indexed: 12/30/2022] Open
Abstract
Globally, two billion people suffer from micronutrient deficiencies. Cereal grains provide more than 50% of the daily requirement of calories in human diets, but they often fail to provide adequate essential minerals and vitamins. Cereal crop production in developing countries achieved remarkable yield gains through the efforts of the Green Revolution (117% in rice, 30% in wheat, 530% in maize, and 188% in pearl millet). However, modern varieties are often deficient in essential micronutrients compared to traditional varieties and land races. Breeding for nutritional quality in staple cereals is a challenging task; however, biofortification initiatives combined with genomic tools increase the feasibility. Current biofortification breeding activities include improving rice (for zinc), wheat (for zinc), maize (for provitamin A), and pearl millet (for iron and zinc). Biofortification is a sustainable approach to enrich staple cereals with provitamin A, carotenoids, and folates. Significant genetic variation has been found for provitamin A (96-850 μg and 12-1780 μg in 100 g in wheat and maize, respectively), carotenoids (558-6730 μg in maize), and folates in rice (11-51 μg) and wheat (32.3-89.1 μg) in 100 g. This indicates the prospects for biofortification breeding. Several QTLs associated with carotenoids and folates have been identified in major cereals, and the most promising of these are presented here. Breeding for essential nutrition should be a core objective of next-generation crop breeding. This review synthesizes the available literature on folates, provitamin A, and carotenoids in rice, wheat, maize, and pearl millet, including genetic variation, trait discovery, QTL identification, gene introgressions, and the strategy of genomics-assisted biofortification for these traits. Recent evidence shows that genomics-assisted breeding for grain nutrition in rice, wheat, maize, and pearl millet crops have good potential to aid in the alleviation of micronutrient malnutrition in many developing countries.
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Affiliation(s)
| | - Mahalingam Govindaraj
- Crop Improvement program, International Crops Research Institute for the Semi-Arid Tropics, Hyderabad, India
| | - Adhimoolam Karthikeyan
- Subtropical Horticulture Research Institute, Jeju National University, Jeju, South Korea
| | - V. G. Shobhana
- Crop Improvement program, International Crops Research Institute for the Semi-Arid Tropics, Hyderabad, India
| | - Thomas D. Warkentin
- Department of Plant Sciences, College of Agriculture and Bioresources, University of Saskatchewan, Saskatoon, SK, Canada
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16
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Yue J, Wang R, Ma X, Liu J, Lu X, Balaso Thakar S, An N, Liu J, Xia E, Liu Y. Full-length transcriptome sequencing provides insights into the evolution of apocarotenoid biosynthesis in Crocus sativus. Comput Struct Biotechnol J 2020; 18:774-783. [PMID: 32280432 PMCID: PMC7132054 DOI: 10.1016/j.csbj.2020.03.022] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Revised: 03/22/2020] [Accepted: 03/22/2020] [Indexed: 12/31/2022] Open
Abstract
Crocus sativus, containing remarkably amounts of crocin, picrocrocin and safranal, is the source of saffron with tremendous medicinal, economic and cultural importance. Here, we present a high-quality full-length transcriptome of the sterile triploid C. sativus, using the PacBio SMRT sequencing technology. This yields 31,755 high-confidence predictions of protein-coding genes, with 50.1% forming paralogous gene pairs. Analysis on distribution of Ks values suggests that the current genome of C. sativus is probably a product resulting from at least two rounds of whole-genome duplication (WGD) events occurred at ~28 and ~114 million years ago (Mya), respectively. We provide evidence demonstrating that the recent β WGD event confers a major impact on family expansion of secondary metabolite genes, possibly leading to an enhanced accumulation of three distinct compounds: crocin, picrocrocin and safranal. Phylogenetic analysis unravels that the founding member (CCD2) of CCD enzymes necessary for the biosynthesis of apocarotenoids in C. sativus might be evolved from the CCD1 family via the β WGD event. Based on the gene expression profiling, CCD2 is found to be expressed at an extremely high level in the stigma. These findings may shed lights on further genomic refinement of the characteristic biosynthesis pathways and promote germplasm utilization for the improvement of saffron quality.
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Affiliation(s)
- Junyang Yue
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, China.,School of Computer and Information, Hefei University of Technology, Hefei 230009, China.,State Key Laboratory of Tea Plant Biology and School of Horticulture, Anhui Agricultural University, Hefei 230036, China
| | - Ran Wang
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, China
| | - Xiaojing Ma
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, China
| | - Jiayi Liu
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, China
| | - Xiaohui Lu
- College of Information Technology, Jiaxing Vocational Technical College, Jiaxing 314000, China
| | - Sambhaji Balaso Thakar
- State Key Laboratory of Tea Plant Biology and School of Horticulture, Anhui Agricultural University, Hefei 230036, China.,Department of Biotechnology, Shivaji University, Kolhapur 416003, India
| | - Ning An
- School of Computer and Information, Hefei University of Technology, Hefei 230009, China
| | - Jia Liu
- Chongqing Key Laboratory of Economic Plant Biotechnology, College of Landscape Architecture and Life Science, Institute of Special Plants, Chongqing University of Arts and Sciences, Chongqing 402160, China
| | - Enhua Xia
- State Key Laboratory of Tea Plant Biology and School of Horticulture, Anhui Agricultural University, Hefei 230036, China
| | - Yongsheng Liu
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, China.,State Key Laboratory of Tea Plant Biology and School of Horticulture, Anhui Agricultural University, Hefei 230036, China.,Ministry of Education Key Laboratory for Bio-resource and Eco-environment, College of Life Science, State Key Laboratory of Hydraulics and Mountain River Engineering, Sichuan University, Chengdu 610064, China
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17
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Effect of freezing and cool storage on carotenoid content and quality of zeaxanthin-biofortified and standard yellow sweet-corn (Zea mays L.). J Food Compost Anal 2020. [DOI: 10.1016/j.jfca.2019.103353] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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18
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Chlorophyll degradation and carotenoid biosynthetic pathways: Gene expression and pigment content in broccoli during yellowing. Food Chem 2019; 297:124964. [PMID: 31253313 DOI: 10.1016/j.foodchem.2019.124964] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Revised: 05/29/2019] [Accepted: 06/07/2019] [Indexed: 11/23/2022]
Abstract
Broccoli undergoes yellowing in unfavorable conditions, thereby diminishing the sensory quality and commodity value. This study aimed to investigate systematically cellular and/or biomolecular changes involved in broccoli yellowing by analyzing changes in microstructural integrity, pigment content, and gene expression. On day-5 of storage at 20 °C, the buds turned yellow without blooming and showed structural damage; ultrastructural analysis revealed plastid transformation and abnormal chloroplast development. Genes regulating pigment content and chloroplast structure directly were identified. More specifically, BoCAO and BoNYC1 regulated chlorophyll turnover, affecting chlorophyll a and b contents. Changes in the β-cryptoxanthin content were influenced by the combined action of up- (BoHYD) and downstream (BoZEP) genes. BoZEP and BoVDE were activated after cold-temperature induction. High BoHO1 expression delayed yellowing at low temperature, inducing BoZEP expression. Color intensity correlated significantly with the chlorophyll b, β-cryptoxanthin, and β-carotene contents, which were associated with increased yellowing of plant tissues.
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19
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Carotenoid composition and expression of biosynthetic genes in yellow and white foxtail millet [Setaria italica (L.) Beauv]. J Cereal Sci 2019. [DOI: 10.1016/j.jcs.2018.11.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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20
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Osorio CE. The Role of Orange Gene in Carotenoid Accumulation: Manipulating Chromoplasts Toward a Colored Future. FRONTIERS IN PLANT SCIENCE 2019; 10:1235. [PMID: 31636649 PMCID: PMC6788462 DOI: 10.3389/fpls.2019.01235] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Accepted: 09/05/2019] [Indexed: 05/11/2023]
Abstract
Carotenoids are isoprenoid pigments synthesized in plants, algae, and photosynthetic bacteria and fungus. Their role is essential in light capture, photoprotection, pollinator attraction, and phytohormone production. Furthermore, they can regulate plant development when they are processed as small signaling molecules. Due to their importance for human health, as promoters of the immune system and antioxidant activity, carotenoids have been used in the pharmaceutical, food, and nutraceutical industries. Regulation of carotenoid synthesis and accumulation has been extensively studied. Excellent work has been done unraveling the mode of action of phytoene synthase (PSY), a rate-limiting enzyme of carotenoid biosynthesis pathway, in model species and staple crops. Lately, interest has been turned to Orange protein and its interaction with PSY during carotenoid biosynthesis. Discovered as a dominant mutation in Brassica oleracea, Orange protein regulates carotenoid accumulation by posttranscriptionally regulating PSY, promoting the formation of carotenoid-sequestering structures, and also preventing carotenoid degradation. Furthermore, Orange protein contributes to homeostasis regulation, improving plant tolerance to abiotic stress. In this mini review, the focus is made on recent evidence that elucidates Orange protein mode of action and expression in different plant species. Additionally, strategies are proposed to modify Orange gene by utilization of genome editing techniques. A better understanding of carotenoid biosynthesis and accumulation will lead to a positive impact on the development of healthy food for a growing population.
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21
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Ko MR, Song MH, Kim JK, Baek SA, You MK, Lim SH, Ha SH. RNAi-mediated suppression of three carotenoid-cleavage dioxygenase genes, OsCCD1, 4a, and 4b, increases carotenoid content in rice. JOURNAL OF EXPERIMENTAL BOTANY 2018; 69:5105-5116. [PMID: 30124964 PMCID: PMC6184605 DOI: 10.1093/jxb/ery300] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Accepted: 08/07/2018] [Indexed: 05/06/2023]
Abstract
Carotenoids of staple food crops have a high nutritional value as provitamin A components in the daily diet. To increase the levels of carotenoids, inhibition of carotenoid-cleavage dioxygenases (CCDs), which degrade carotenoids, has been considered as a promising target in crop biotechnology. In this study, suppression of the OsCCD1, OsCCD4a, and OsCCD4b genes using RNAi was verified in transgenic rice plants by quantitative RT-PCR and small RNA detection. Leaf carotenoids were significantly increased overall in OsCCD4a-RNAi lines of the T1 generation, and the highest accumulation of 1.3-fold relative to non-transgenic plants was found in a line of the T2 generation. The effects on seed carotenoids were determined via cross-fertilization between β-carotene-producing transgenic rice and one of two independent homozygous lines of OsCCD1-RNAi, OsCCD4a-RNAi, or OsCCD4b-RNAi. This showed that carotenoids were increased to a maximum of 1.4- and 1.6-fold in OsCCD1-RNAi and OsCCD4a-RNAi, respectively, with a different preference toward α-ring and β-ring carotenoids; levels could not be established in OsCCD4b-RNAi. In addition, the contents of four carotenoids decreased when OsCCD1, OsCCD4a, and OsCCD4b were overexpressed in E. coli strains accumulating phytoene, lycopene, β-carotene, and zeaxanthin. OsCCD1 and OsCCD4a had a similar high carotenoid degrading activity, followed by OsCCD4b without substrate specificity. Overall, our results suggest that suppresing OsCCD4a activity may have potential as a tool for enhancing the carotenoid content of seed endosperms and leaves in rice.
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Affiliation(s)
- Mi Ran Ko
- Department of Genetic Engineering and Graduate School of Biotechnology, College of Life Sciences, Kyung Hee University, Yongin, Republic of Korea
| | - Mi-Hee Song
- College of Agriculture and Life Sciences, Chungnam National University, Daejeon, Republic of Korea
| | - Jae Kwang Kim
- Division of Life Sciences and Bio-Resource and Environmental Center, Incheon National University, Incheon, Republic of Korea
| | - Seung-A Baek
- Division of Life Sciences and Bio-Resource and Environmental Center, Incheon National University, Incheon, Republic of Korea
| | - Min Kyoung You
- Department of Genetic Engineering and Graduate School of Biotechnology, College of Life Sciences, Kyung Hee University, Yongin, Republic of Korea
| | - Sun-Hyung Lim
- National Academy of Agricultural Science, Rural Development Administration, Jeonju, Republic of Korea
| | - Sun-Hwa Ha
- Department of Genetic Engineering and Graduate School of Biotechnology, College of Life Sciences, Kyung Hee University, Yongin, Republic of Korea
- Correspondence:
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22
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Giordano D, Beta T, Vanara F, Blandino M. Influence of Agricultural Management on Phytochemicals of Colored Corn Genotypes ( Zea mays L.). Part 1: Nitrogen Fertilization. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:4300-4308. [PMID: 29641199 DOI: 10.1021/acs.jafc.8b00325] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
In this study, the influence of nitrogen (N) fertilization (170 versus 300 kg of N/ha) on the content of bioactive compounds of whole-meal flour of 10 different colored corn genotypes was investigated. Considerable differences in antioxidant capacity and phytochemical concentrations were observed among genotypes. Higher N fertilization rates significantly ( p < 0.05) increased the content of both total cell-wall-bound phenolics and xanthophylls (lutein and zeaxanthin). Nevertheless, the main phenolic acids (ferulic, p-coumaric, and sinapic acids) as well as the antioxidant capacity and content of β-cryptoxanthin, β-carotene, and total anthocyanins did not show significant differences as far as the N fertilization rate is concerned. For corn cultivation, the application of high N fertilization rates, generally carried out to obtain higher grain yields, could positively influence the content of some bioactives particularly in years characterized by high rainfall levels responsible for N leaching from the soil.
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Affiliation(s)
- Debora Giordano
- Department of Agricultural, Forest and Food Sciences , University of Turin , Largo Paolo Braccini 2 , 10095 Grugliasco , Turin , Italy
| | - Trust Beta
- Department of Food and Human Nutritional Sciences , University of Manitoba , Winnipeg , Manitoba R3T 2N2 , Canada
| | - Francesca Vanara
- Department of Agricultural, Forest and Food Sciences , University of Turin , Largo Paolo Braccini 2 , 10095 Grugliasco , Turin , Italy
| | - Massimo Blandino
- Department of Agricultural, Forest and Food Sciences , University of Turin , Largo Paolo Braccini 2 , 10095 Grugliasco , Turin , Italy
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23
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Giordano D, Beta T, Gagliardi F, Blandino M. Influence of Agricultural Management on Phytochemicals of Colored Corn Genotypes ( Zea mays L.). Part 2: Sowing Time. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:4309-4318. [PMID: 29641196 DOI: 10.1021/acs.jafc.8b00326] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Among the agronomic practices carried out in corn cultivation, the early sowing time is increasingly used by farmers of temperate regions to improve yield and reduce mycotoxin contamination of corn grains. The present study determined the influence of sowing time on the phytochemical content of grains of 10 colored genotypes of corn. There was a significant improvement of both grain yield (+26%), thousand kernel weight (+3%), and test weight (+2%) in plots sown early. The early sowing also significantly influenced the chemical composition of corn grains, with an increase in the concentration of cell-wall-bound phenolic acids (+5%) and β-cryptoxanthin (+23%) and a decrease in the concentration of lutein (-18%) and total anthocyanins (-21%). Environmental conditions that occurred during grain development significantly influenced the phytochemical content of corn grain, and early spring sowing could impart advantages in terms of both productivity and content of some antioxidants of whole-meal corn flour.
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Affiliation(s)
- Debora Giordano
- Department of Agricultural, Forest and Food Sciences , University of Turin , Largo Paolo Braccini 2 , 10095 Grugliasco , Turin , Italy
| | - Trust Beta
- Department of Food and Human Nutritional Sciences , University of Manitoba , Winnipeg , Manitoba R3T 2N2 , Canada
| | - Federica Gagliardi
- Department of Agricultural, Forest and Food Sciences , University of Turin , Largo Paolo Braccini 2 , 10095 Grugliasco , Turin , Italy
| | - Massimo Blandino
- Department of Agricultural, Forest and Food Sciences , University of Turin , Largo Paolo Braccini 2 , 10095 Grugliasco , Turin , Italy
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24
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Rodriguez-Concepcion M, Avalos J, Bonet ML, Boronat A, Gomez-Gomez L, Hornero-Mendez D, Limon MC, Meléndez-Martínez AJ, Olmedilla-Alonso B, Palou A, Ribot J, Rodrigo MJ, Zacarias L, Zhu C. A global perspective on carotenoids: Metabolism, biotechnology, and benefits for nutrition and health. Prog Lipid Res 2018; 70:62-93. [PMID: 29679619 DOI: 10.1016/j.plipres.2018.04.004] [Citation(s) in RCA: 458] [Impact Index Per Article: 76.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2018] [Revised: 04/16/2018] [Accepted: 04/18/2018] [Indexed: 12/22/2022]
Abstract
Carotenoids are lipophilic isoprenoid compounds synthesized by all photosynthetic organisms and some non-photosynthetic prokaryotes and fungi. With some notable exceptions, animals (including humans) do not produce carotenoids de novo but take them in their diets. In photosynthetic systems carotenoids are essential for photoprotection against excess light and contribute to light harvesting, but perhaps they are best known for their properties as natural pigments in the yellow to red range. Carotenoids can be associated to fatty acids, sugars, proteins, or other compounds that can change their physical and chemical properties and influence their biological roles. Furthermore, oxidative cleavage of carotenoids produces smaller molecules such as apocarotenoids, some of which are important pigments and volatile (aroma) compounds. Enzymatic breakage of carotenoids can also produce biologically active molecules in both plants (hormones, retrograde signals) and animals (retinoids). Both carotenoids and their enzymatic cleavage products are associated with other processes positively impacting human health. Carotenoids are widely used in the industry as food ingredients, feed additives, and supplements. This review, contributed by scientists of complementary disciplines related to carotenoid research, covers recent advances and provides a perspective on future directions on the subjects of carotenoid metabolism, biotechnology, and nutritional and health benefits.
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Affiliation(s)
| | - Javier Avalos
- Department of Genetics, Universidad de Sevilla, 41012 Seville, Spain
| | - M Luisa Bonet
- Laboratory of Molecular Biology, Nutrition and Biotechnology, Universitat de les Illes Balears, 07120 Palma de Mallorca, Spain; CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn), 07120 Palma de Mallorca, Spain; Institut d'Investigació Sanitària Illes Balears (IdISBa), 07120 Palma de Mallorca, Spain
| | - Albert Boronat
- Centre for Research in Agricultural Genomics (CRAG) CSIC-IRTA-UAB-UB, 08193 Barcelona, Spain; Department of Biochemistry and Molecular Biomedicine, Universitat de Barcelona, 08028 Barcelona, Spain
| | - Lourdes Gomez-Gomez
- Instituto Botánico, Universidad de Castilla-La Mancha, 02071 Albacete, Spain
| | - Damaso Hornero-Mendez
- Department of Food Phytochemistry, Instituto de la Grasa (IG-CSIC), 41013 Seville, Spain
| | - M Carmen Limon
- Department of Genetics, Universidad de Sevilla, 41012 Seville, Spain
| | - Antonio J Meléndez-Martínez
- Food Color & Quality Laboratory, Area of Nutrition & Food Science, Universidad de Sevilla, 41012 Seville, Spain
| | | | - Andreu Palou
- Laboratory of Molecular Biology, Nutrition and Biotechnology, Universitat de les Illes Balears, 07120 Palma de Mallorca, Spain; CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn), 07120 Palma de Mallorca, Spain; Institut d'Investigació Sanitària Illes Balears (IdISBa), 07120 Palma de Mallorca, Spain
| | - Joan Ribot
- Laboratory of Molecular Biology, Nutrition and Biotechnology, Universitat de les Illes Balears, 07120 Palma de Mallorca, Spain; CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn), 07120 Palma de Mallorca, Spain; Institut d'Investigació Sanitària Illes Balears (IdISBa), 07120 Palma de Mallorca, Spain
| | - Maria J Rodrigo
- Institute of Agrochemistry and Food Technology (IATA-CSIC), 46980 Valencia, Spain
| | - Lorenzo Zacarias
- Institute of Agrochemistry and Food Technology (IATA-CSIC), 46980 Valencia, Spain
| | - Changfu Zhu
- Department of Plant Production and Forestry Science, Universitat de Lleida-Agrotecnio, 25198 Lleida, Spain
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25
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Cuong DM, Kim JK, Jeon J, Kim TJ, Park JS, Park SU. Expression of Carotenoid Biosynthetic Genes and Carotenoid Biosynthesis during Seedling Development of Momordica charantia. Nat Prod Commun 2018. [DOI: 10.1177/1934578x1801300312] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Carotenoids belong to a large group of secondary metabolites, and have pivotal roles in plants, including photosynthesis and phytohormone synthesis, pigmentation, and membrane stabilization. Additionally, carotenoids are potent antioxidants, and their health benefits are becoming increasingly prominent. In recent years, carotenoids have been studied in many plants. Furthermore, gene expression, as well as carotenoid accumulation in different parts of the bitter melon, has been investigated; however, it has not been studied in bitter melon seedlings. In this study, carotenoid accumulation and transcript levels of McGGPPS1, McGGPPS2, McPSY, McPDS, McZDS, McLCYB, McLCYE1, McLCYE2, McCXHB, and McZEP, involved in carotenoid biosynthesis, were analyzed during seedling development using HPLC and qRT-PCR. The major carotenoids that accumulated in the bitter melon seedlings were lutein and E-β-carotene. The expression of most carotenoid biosynthetic genes increased during seedling development, consistent with the accumulation of violaxanthin, lutein, zeaxanthin, β-cryptoxanthin, 13Z-β-carotene, E-β-carotene, and 9Z-β-carotene in bitter melon seedlings. The results of this study provide a firm basis for comprehending the link between gene expression and carotenoid concentration in bitter melon seedlings.
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Affiliation(s)
- Do Manh Cuong
- Department of Crop Science, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon, 34134, Korea
| | - Jae Kwang Kim
- Division of Life Sciences and Convergence Research Center for Insect Vectors, Incheon National University, Incheon 22012, Korea
| | - Jin Jeon
- Department of Crop Science, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon, 34134, Korea
| | - Tae Jin Kim
- Division of Life Sciences and Convergence Research Center for Insect Vectors, Incheon National University, Incheon 22012, Korea
| | - Jong Seok Park
- Department of Horticultural Science, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Korea
| | - Sang Un Park
- Department of Crop Science, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon, 34134, Korea
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Cuong DM, Arasu MV, Jeon J, Park YJ, Kwon SJ, Al-Dhabi NA, Park SU. Medically important carotenoids from Momordica charantia and their gene expressions in different organs. Saudi J Biol Sci 2017; 24:1913-1919. [PMID: 29551944 PMCID: PMC5851905 DOI: 10.1016/j.sjbs.2017.11.039] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2017] [Revised: 11/09/2017] [Accepted: 11/12/2017] [Indexed: 12/16/2022] Open
Abstract
Carotenoids, found in the fruit and different organs of bitter melon (Momordica charantia), have attracted great attention for their potential health benefits in treating several major chronic diseases. Therefore, study related to the identification and quantification of the medically important carotenoid metabolites is highly important for the treatment of various disorderes. The present study involved in the identification and quantification of the various carotenoids present in the different organs of M. charantia and the identification of the genes responsible for the accumulation of the carotenoids with respect to the transcriptome levels were investigated. In this study, using the transcriptome database of bitter melon, a partial-length cDNA clone encoding geranylgeranyl pyrophosphate synthase (McGGPPS2), and several full-length cDNA clones encoding geranylgeranyl pyrophosphate synthase (McGGPPS1), zeta-carotene desaturase (McZDS), lycopene beta-cyclase (McLCYB), lycopene epsilon cyclases (McLCYE1 and McLCYE2), beta-carotene hydroxylase (McCHXB), and zeaxanthin epoxidase (McZEP) were identified in bitter melon. The expression levels of the mRNAs encoding these eight putative biosynthetic enzymes, as well as the accumulation of lycopene, α-carotene, lutein, 13Z-β-carotene, E-β-carotene, 9Z-β-carotene, β-cryptoxanthin, zeaxanthin, antheraxanthin, and violaxanthin were investigated in different organs from M. charantia as well as in the four different stages of its fruit maturation. Transcripts were found to be constitutively expressed at high levels in the leaves where carotenoids were also found at the highest levels. Collectively, these results indicate that the putative McGGPPS2, McZDS, McLCYB, McLCYE1, McLCYE2, and McCHXB enzymes might be key factors in controlling carotenoid content in bitter melon. In conclusion, the over expression of the carotenoid biosynthetic genes from M. charantia crops to increase the yield of these medically important carotenoids.
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Affiliation(s)
- Do Manh Cuong
- Department of Crop Science, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Republic of Korea
| | - Mariadhas Valan Arasu
- Addiriyah Research Chair for Environmental Studies, Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Jin Jeon
- Department of Crop Science, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Republic of Korea
| | - Yun Ji Park
- Department of Crop Science, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Republic of Korea
| | - Soon-Jae Kwon
- Korea Atomic Energy Research Institute, Advanced Radiation Technology Institute, 29 Geumgu-gil, Jeongeup-si, Jeollabuk-do 580-185, Republic of Korea
| | - Naif Abdullah Al-Dhabi
- Addiriyah Research Chair for Environmental Studies, Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
- Corresponding authors.
| | - Sang Un Park
- Department of Crop Science, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Republic of Korea
- Corresponding authors.
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Liu H, Mao J, Yan S, Yu Y, Xie L, Hu JG, Li T, Abbasi AM, Guo X, Liu RH. Evaluation of carotenoid biosynthesis, accumulation and antioxidant activities in sweetcorn (Zea mays
L.) during kernel development. Int J Food Sci Technol 2017. [DOI: 10.1111/ijfs.13595] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Haiying Liu
- School of Food Science and Engineering; South China University of Technology; Guangzhou 510641 China
| | - Jihua Mao
- Crop Research Institute; Guangdong Academy of Agricultural Sciences; Guangzhou 510640 China
- Key Laboratory of Crops Genetics Improvement of Guangdong Province; Guangzhou 510640 China
| | - Shijuan Yan
- Agro-Biological Gene Research Center; Guangdong Academy of Agricultural Sciences; Guangzhou 510640 China
| | - Yongtao Yu
- Crop Research Institute; Guangdong Academy of Agricultural Sciences; Guangzhou 510640 China
- Key Laboratory of Crops Genetics Improvement of Guangdong Province; Guangzhou 510640 China
| | - Lihua Xie
- School of Food Science and Engineering; South China University of Technology; Guangzhou 510641 China
| | - Jian Guang Hu
- Crop Research Institute; Guangdong Academy of Agricultural Sciences; Guangzhou 510640 China
- Key Laboratory of Crops Genetics Improvement of Guangdong Province; Guangzhou 510640 China
| | - Tong Li
- Department of Food Science; Stocking Hall; Cornell University; Ithaca NY 14853 USA
| | - Arshad Mehmood Abbasi
- School of Food Science and Engineering; South China University of Technology; Guangzhou 510641 China
- Department of Environmental Sciences; COMSATS Institute of Information Technology; Abbottabad 22060 Pakistan
| | - Xinbo Guo
- School of Food Science and Engineering; South China University of Technology; Guangzhou 510641 China
- Department of Food Science; Stocking Hall; Cornell University; Ithaca NY 14853 USA
| | - Rui Hai Liu
- Department of Food Science; Stocking Hall; Cornell University; Ithaca NY 14853 USA
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Verification of Three-Phase Dependency Analysis Bayesian Network Learning Method for Maize Carotenoid Gene Mining. BIOMED RESEARCH INTERNATIONAL 2017; 2017:1813494. [PMID: 28828382 PMCID: PMC5554554 DOI: 10.1155/2017/1813494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/03/2017] [Accepted: 06/27/2017] [Indexed: 11/17/2022]
Abstract
Background and Objective Mining the genes related to maize carotenoid components is important to improve the carotenoid content and the quality of maize. Methods On the basis of using the entropy estimation method with Gaussian kernel probability density estimator, we use the three-phase dependency analysis (TPDA) Bayesian network structure learning method to construct the network of maize gene and carotenoid components traits. Results In the case of using two discretization methods and setting different discretization values, we compare the learning effect and efficiency of 10 kinds of Bayesian network structure learning methods. The method is verified and analyzed on the maize dataset of global germplasm collection with 527 elite inbred lines. Conclusions The result confirmed the effectiveness of the TPDA method, which outperforms significantly another 9 kinds of Bayesian network learning methods. It is an efficient method of mining genes for maize carotenoid components traits. The parameters obtained by experiments will help carry out practical gene mining effectively in the future.
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Chan-León AC, Estrella-Maldonado H, Dubé P, Fuentes Ortiz G, Espadas-Gil F, Talavera May C, Ramírez Prado J, Desjardins Y, Santamaría JM. The high content of β-carotene present in orange-pulp fruits of Carica papaya L. is not correlated with a high expression of the CpLCY-β2 gene. Food Res Int 2017; 100:45-56. [PMID: 28888458 DOI: 10.1016/j.foodres.2017.08.017] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2017] [Revised: 08/04/2017] [Accepted: 08/05/2017] [Indexed: 01/25/2023]
Abstract
We investigated the transcriptional regulation of six genes involved in carotenoid biosynthesis, together with the carotenoid accumulation during postharvest ripening of three different papaya genotypes of contrasting pulp color. Red-pulp genotype (RPG) showed the lowest content of yellow pigments (YP), such as β-cryptoxanthin, zeaxanthin, and violaxanthin, together with the lowest relative expression levels (REL) of CpLCY-β2 and CpCHX-β genes. On the contrary, the yellow-pulp genotype (YPG) showed the highest content of YP and the highest REL of CpLCY-β2 and CpCHX-β genes. Interestingly, the orange-pulp genotype (OPG) showed intermediate content of YP and intermediate REL of CpLCY-β2 and CpCHX-β genes. The highest content of β-carotene shown by OPG despite having an intermediate REL of the CpLCY-β2 genes, suggests a post-transcriptional regulation. Thus, the transcriptional level of the genes, directing the carotenoid biosynthesis pathway, can partially explain the accumulation of carotenoids during the postharvest ripening in C. papaya genotypes of contrasting pulp color.
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Affiliation(s)
- Arianna C Chan-León
- Centro de Investigación Científica de Yucatán, A.C., Unidad de Biotecnología, Calle 43 No. 130, entre 32 y 34. Colonia Chuburná de Hidalgo, CP 97205 Mérida, Yucatán, Mexico
| | - Humberto Estrella-Maldonado
- Centro de Investigación Científica de Yucatán, A.C., Unidad de Biotecnología, Calle 43 No. 130, entre 32 y 34. Colonia Chuburná de Hidalgo, CP 97205 Mérida, Yucatán, Mexico
| | - Pascal Dubé
- Institute of Nutrition and Functional Foods (INAF), Laval University, 2440 Boulevard Hochelaga, Québec, QC G1V 0A6, Canada
| | - Gabriela Fuentes Ortiz
- Centro de Investigación Científica de Yucatán, A.C., Unidad de Biotecnología, Calle 43 No. 130, entre 32 y 34. Colonia Chuburná de Hidalgo, CP 97205 Mérida, Yucatán, Mexico
| | - Francisco Espadas-Gil
- Centro de Investigación Científica de Yucatán, A.C., Unidad de Biotecnología, Calle 43 No. 130, entre 32 y 34. Colonia Chuburná de Hidalgo, CP 97205 Mérida, Yucatán, Mexico
| | - Carlos Talavera May
- Centro de Investigación Científica de Yucatán, A.C., Unidad de Biotecnología, Calle 43 No. 130, entre 32 y 34. Colonia Chuburná de Hidalgo, CP 97205 Mérida, Yucatán, Mexico
| | - Jorge Ramírez Prado
- Centro de Investigación Científica de Yucatán, A.C., Unidad de Biotecnología, Calle 43 No. 130, entre 32 y 34. Colonia Chuburná de Hidalgo, CP 97205 Mérida, Yucatán, Mexico
| | - Yves Desjardins
- Institute of Nutrition and Functional Foods (INAF), Laval University, 2440 Boulevard Hochelaga, Québec, QC G1V 0A6, Canada
| | - Jorge M Santamaría
- Centro de Investigación Científica de Yucatán, A.C., Unidad de Biotecnología, Calle 43 No. 130, entre 32 y 34. Colonia Chuburná de Hidalgo, CP 97205 Mérida, Yucatán, Mexico.
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Colasuonno P, Marcotuli I, Lozito ML, Simeone R, Blanco A, Gadaleta A. Characterization of Aldehyde Oxidase (AO) Genes Involved in the Accumulation of Carotenoid Pigments in Wheat Grain. FRONTIERS IN PLANT SCIENCE 2017; 8:863. [PMID: 28596779 PMCID: PMC5443152 DOI: 10.3389/fpls.2017.00863] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2017] [Accepted: 05/09/2017] [Indexed: 05/25/2023]
Abstract
Aldehyde Oxidase (AO) enzyme (EC 1.2.3.1) catalyzes the final steps of carotenoid catabolism and it is a key enzyme in the abscisic acid (ABA) biosynthesis. AO isoforms are located in the cytosolic compartment of tissues in many plants, where induce the oxidation of aldehydes into carboxylic acid, and in addition, catalyze the hydroxylation of some heterocycles. The goal of the present study was to characterize the AO genes involved in the accumulation of carotenoid pigments in wheat grain, an important quantitative trait controlled by multiple genes. The cDNAs corresponding to the four AO isoforms from Arabidopsis thaliana and five AO isoforms from Brachypodium distachyon were used as query in 454 sequence assemblies data for Triticum aestivum cv. Chinese Spring (https://urgi.versailles.inra.fr/blast/blast.php) to obtain the partial or whole orthologous wheat AO sequences. Three wheat isoforms, designated AO1, AO2, and AO3 were located on the chromosome groups 2, 5, and 7, respectively, and mapped on two consensus wheat maps by SNP markers located within the AO gene sequences. To validate the possible relationships between AO3 genes and carotenoid accumulation in wheat, the expression levels of AO-A3 and AO-B3 gene were determined during the kernel maturation stage of two durum wheat cultivars, Ciccio and Svevo, characterized by a low and high carotenoid content, respectively. Different AO-A3 gene expression values were observed between the two cultivars indicating that the AO-A3 allele present in Ciccio was more active in carotenoid degradation. A gene marker was developed and can be used for marker-assisted selection in wheat breeding programs.
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Affiliation(s)
- Pasqualina Colasuonno
- Department of Agricultural and Environmental Science, University of Bari Aldo MoroBari, Italy
| | - Ilaria Marcotuli
- Department of Agricultural and Environmental Science, University of Bari Aldo MoroBari, Italy
| | - Maria L. Lozito
- Department of Soil, Plant and Food Sciences, University of Bari Aldo MoroBari, Italy
| | - Rosanna Simeone
- Department of Soil, Plant and Food Sciences, University of Bari Aldo MoroBari, Italy
| | - Antonio Blanco
- Department of Soil, Plant and Food Sciences, University of Bari Aldo MoroBari, Italy
| | - Agata Gadaleta
- Department of Agricultural and Environmental Science, University of Bari Aldo MoroBari, Italy
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Junker LV, Ensminger I. Fast detection of leaf pigments and isoprenoids for ecophysiological studies, plant phenotyping and validating remote-sensing of vegetation. PHYSIOLOGIA PLANTARUM 2016; 158:369-381. [PMID: 27616618 DOI: 10.1111/ppl.12512] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Revised: 08/23/2016] [Accepted: 09/01/2016] [Indexed: 06/06/2023]
Abstract
Rapid developments in remote-sensing of vegetation and high-throughput precision plant phenotyping promise a range of real-life applications using leaf optical properties for non-destructive assessment of plant performance. Use of leaf optical properties for assessing plant performance requires the ability to use photosynthetic pigments as proxies for physiological properties and the ability to detect these pigments fast, reliably and at low cost. We describe a simple and cost-effective protocol for the rapid analysis of chlorophylls, carotenoids and tocopherols using high-performance liquid chromatography (HPLC). Many existing methods are based on the expensive solvent acetonitrile, take a long time or do not include lutein epoxide and α-carotene. We aimed to develop an HPLC method which separates all major chlorophylls and carotenoids as well as lutein epoxide, α-carotene and α-tocopherol. Using a C30 -column and a mobile phase with a gradient of methanol, methyl-tert-butyl-ether (MTBE) and water, our method separates the above pigments and isoprenoids within 28 min. The broad applicability of our method is demonstrated using samples from various plant species and tissue types, e.g. leaves of Arabidopsis and avocado plants, several deciduous and conifer tree species, various crops, stems of parasitic dodder, fruit of tomato, roots of carrots and Chlorella algae. In comparison to previous methods, our method is very affordable, fast and versatile and can be used to analyze all major photosynthetic pigments that contribute to changes in leaf optical properties and which are of interest in most ecophysiological studies.
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Affiliation(s)
- Laura V Junker
- Department of Biology, Graduate Programs in Cell & Systems Biology and Ecology and Evolutionary Biology, University of Toronto, Mississauga Campus, Mississauga, ON, Canada
- Abteilung Waldnaturschutz, Forstliche Versuchs- und Forschungsanstalt Baden-Württemberg, 79100, Freiburg, Germany
| | - Ingo Ensminger
- Department of Biology, Graduate Programs in Cell & Systems Biology and Ecology and Evolutionary Biology, University of Toronto, Mississauga Campus, Mississauga, ON, Canada
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32
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Comas J, Benfeitas R, Vilaprinyo E, Sorribas A, Solsona F, Farré G, Berman J, Zorrilla U, Capell T, Sandmann G, Zhu C, Christou P, Alves R. Identification of line-specific strategies for improving carotenoid production in synthetic maize through data-driven mathematical modeling. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2016; 87:455-471. [PMID: 27155093 DOI: 10.1111/tpj.13210] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2015] [Revised: 04/25/2016] [Accepted: 04/29/2016] [Indexed: 06/05/2023]
Abstract
Plant synthetic biology is still in its infancy. However, synthetic biology approaches have been used to manipulate and improve the nutritional and health value of staple food crops such as rice, potato and maize. With current technologies, production yields of the synthetic nutrients are a result of trial and error, and systematic rational strategies to optimize those yields are still lacking. Here, we present a workflow that combines gene expression and quantitative metabolomics with mathematical modeling to identify strategies for increasing production yields of nutritionally important carotenoids in the seed endosperm synthesized through alternative biosynthetic pathways in synthetic lines of white maize, which is normally devoid of carotenoids. Quantitative metabolomics and gene expression data are used to create and fit parameters of mathematical models that are specific to four independent maize lines. Sensitivity analysis and simulation of each model is used to predict which gene activities should be further engineered in order to increase production yields for carotenoid accumulation in each line. Some of these predictions (e.g. increasing Zmlycb/Gllycb will increase accumulated β-carotenes) are valid across the four maize lines and consistent with experimental observations in other systems. Other predictions are line specific. The workflow is adaptable to any other biological system for which appropriate quantitative information is available. Furthermore, we validate some of the predictions using experimental data from additional synthetic maize lines for which no models were developed.
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Affiliation(s)
- Jorge Comas
- Departament de Ciencies Mèdiques Bàsiques, Universitat de Lleida, Lleida, Spain
- Institut de Recerca Biomèdica de Lleida IRBLLeida, Edifici de Recerca Biomédica I, Av Rovira Roure 80, Lleida, Catalunya, 25198, Spain
- Computer Science Department and INSPIRES, University of Lleida, Jaume II 69, Lleida, Catalunya, 25001, Spain
| | - Rui Benfeitas
- Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, 3004-517, Portugal
- Institute for Interdisciplinary Research, University of Coimbra, Coimbra, 3030-789, Portugal
| | - Ester Vilaprinyo
- Departament de Ciencies Mèdiques Bàsiques, Universitat de Lleida, Lleida, Spain
- Institut de Recerca Biomèdica de Lleida IRBLLeida, Edifici de Recerca Biomédica I, Av Rovira Roure 80, Lleida, Catalunya, 25198, Spain
| | - Albert Sorribas
- Departament de Ciencies Mèdiques Bàsiques, Universitat de Lleida, Lleida, Spain
- Institut de Recerca Biomèdica de Lleida IRBLLeida, Edifici de Recerca Biomédica I, Av Rovira Roure 80, Lleida, Catalunya, 25198, Spain
| | - Francesc Solsona
- Computer Science Department and INSPIRES, University of Lleida, Jaume II 69, Lleida, Catalunya, 25001, Spain
| | - Gemma Farré
- Department of Plant Production and Forestry Science, School of Agrifood and Forestry Science and Engineering (ETSEA), University of Lleida Agrotecnio Center, Avenida Alcalde Rovira Roure 191, Lleida, 25198, Spain
| | - Judit Berman
- Department of Plant Production and Forestry Science, School of Agrifood and Forestry Science and Engineering (ETSEA), University of Lleida Agrotecnio Center, Avenida Alcalde Rovira Roure 191, Lleida, 25198, Spain
| | - Uxue Zorrilla
- Department of Plant Production and Forestry Science, School of Agrifood and Forestry Science and Engineering (ETSEA), University of Lleida Agrotecnio Center, Avenida Alcalde Rovira Roure 191, Lleida, 25198, Spain
| | - Teresa Capell
- Department of Plant Production and Forestry Science, School of Agrifood and Forestry Science and Engineering (ETSEA), University of Lleida Agrotecnio Center, Avenida Alcalde Rovira Roure 191, Lleida, 25198, Spain
| | - Gerhard Sandmann
- Institute of Molecular Bioscience, J. W. Goethe University, Max von Laue Strasse 9, Frankfurt am Main, D-60438, Germany
| | - Changfu Zhu
- Department of Plant Production and Forestry Science, School of Agrifood and Forestry Science and Engineering (ETSEA), University of Lleida Agrotecnio Center, Avenida Alcalde Rovira Roure 191, Lleida, 25198, Spain
| | - Paul Christou
- Department of Plant Production and Forestry Science, School of Agrifood and Forestry Science and Engineering (ETSEA), University of Lleida Agrotecnio Center, Avenida Alcalde Rovira Roure 191, Lleida, 25198, Spain
- ICREA, Institució Catalana de Recerca i Estudis Avancats, Passeig Lluís Companys, 23, 08010, Barcelona, Spain
| | - Rui Alves
- Departament de Ciencies Mèdiques Bàsiques, Universitat de Lleida, Lleida, Spain.
- Institut de Recerca Biomèdica de Lleida IRBLLeida, Edifici de Recerca Biomédica I, Av Rovira Roure 80, Lleida, Catalunya, 25198, Spain.
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Zhai S, Xia X, He Z. Carotenoids in Staple Cereals: Metabolism, Regulation, and Genetic Manipulation. FRONTIERS IN PLANT SCIENCE 2016; 7:1197. [PMID: 27559339 PMCID: PMC4978713 DOI: 10.3389/fpls.2016.01197] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2016] [Accepted: 07/27/2016] [Indexed: 05/02/2023]
Abstract
Carotenoids play a critical role in animal and human health. Animals and humans are unable to synthesize carotenoids de novo, and therefore rely upon diet as sources of these compounds. However, major staple cereals often contain only small amounts of carotenoids in their grains. Consequently, there is considerable interest in genetic manipulation of carotenoid content in cereal grain. In this review, we focus on carotenoid metabolism and regulation in non-green plant tissues, as well as genetic manipulation in staple cereals such as rice, maize, and wheat. Significant progress has been made in three aspects: (1) seven carotenogenes play vital roles in carotenoid regulation in non-green plant tissues, including 1-deoxyxylulose-5-phosphate synthase influencing isoprenoid precursor supply, phytoene synthase, β-cyclase, and ε-cyclase controlling biosynthesis, 1-hydroxy-2-methyl-2-(E)-butenyl 4-diphosphate reductase and carotenoid cleavage dioxygenases responsible for degradation, and orange gene conditioning sequestration sink; (2) provitamin A-biofortified crops, such as rice and maize, were developed by either metabolic engineering or marker-assisted breeding; (3) quantitative trait loci for carotenoid content on chromosomes 3B, 7A, and 7B were consistently identified, eight carotenogenes including 23 loci were detected, and 10 gene-specific markers for carotenoid accumulation were developed and applied in wheat improvement. A comprehensive and deeper understanding of the regulatory mechanisms of carotenoid metabolism in crops will be beneficial in improving our precision in improving carotenoid contents. Genomic selection and gene editing are emerging as transformative technologies for provitamin A biofortification.
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Affiliation(s)
- Shengnan Zhai
- National Wheat Improvement Center, Institute of Crop Science, Chinese Academy of Agricultural SciencesBeijing, China
| | - Xianchun Xia
- National Wheat Improvement Center, Institute of Crop Science, Chinese Academy of Agricultural SciencesBeijing, China
| | - Zhonghu He
- National Wheat Improvement Center, Institute of Crop Science, Chinese Academy of Agricultural SciencesBeijing, China
- International Maize and Wheat Improvement Center, Chinese Academy of Agricultural SciencesBeijing, China
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Herritt M, Dhanapal AP, Fritschi FB. Identification of Genomic Loci Associated with the Photochemical Reflectance Index by Genome-Wide Association Study in Soybean. THE PLANT GENOME 2016; 9. [PMID: 27898827 DOI: 10.3835/plantgenome2015.08.0072] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2015] [Accepted: 02/24/2016] [Indexed: 05/10/2023]
Abstract
The photochemical reflectance index (PRI) is determined from canopy spectral reflectance measurements and can provide important information about photosynthesis. The PRI can be used to assess the epoxidation state of xanthophyll pigments, which provides information on nonphotochemical quenching (NPQ) and the amount of energy used for photosynthesis. Genome-wide association analyses were conducted to identify single-nucleotide polymorphisms (SNPs) and genomic loci associated with PRI using data from a soybean [ (L.) Merr.] diversity panel grown under field conditions over 2 yr. Based on a mixed linear model (MLM), 31 unique candidate SNPs that identify 15 putative loci on 11 chromosomes were identified. Several candidate genes known to be associated with NPQ, photosynthesis, and sugar transport processes were identified in the proximity of 10 putative loci. Violaxanthin de-epoxidase, one of the identified genes, is directly involved in the xanthophyll cycle, which plays a major role in NPQ. This study is the first to identify genomic loci for PRI and illustrates the potential of canopy spectral reflectance measurements for high-throughput phenotyping of a photosynthesis related trait. Significant SNPs, candidate genes, and genotypes contrasting for PRI identified in this study may prove useful for crop improvement efforts.
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Ortiz D, Rocheford T, Ferruzzi MG. Influence of Temperature and Humidity on the Stability of Carotenoids in Biofortified Maize ( Zea mays L.) Genotypes during Controlled Postharvest Storage. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2016; 64:2727-36. [PMID: 0 DOI: 10.1021/acs.jafc.5b05698] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Affiliation(s)
- Darwin Ortiz
- Department of Food Science, ‡Department of Agronomy, and #Department of Nutrition
Science, Purdue University, West Lafayette, Indiana 47907, United States
| | - Torbert Rocheford
- Department of Food Science, ‡Department of Agronomy, and #Department of Nutrition
Science, Purdue University, West Lafayette, Indiana 47907, United States
| | - Mario G. Ferruzzi
- Department of Food Science, ‡Department of Agronomy, and #Department of Nutrition
Science, Purdue University, West Lafayette, Indiana 47907, United States
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36
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Bai C, Capell T, Berman J, Medina V, Sandmann G, Christou P, Zhu C. Bottlenecks in carotenoid biosynthesis and accumulation in rice endosperm are influenced by the precursor-product balance. PLANT BIOTECHNOLOGY JOURNAL 2016; 14:195-205. [PMID: 25857664 DOI: 10.1111/pbi.12373] [Citation(s) in RCA: 79] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2014] [Revised: 02/23/2015] [Accepted: 03/02/2015] [Indexed: 05/17/2023]
Abstract
The profile of secondary metabolites in plants reflects the balance of biosynthesis, degradation and storage, including the availability of precursors and products that affect the metabolic equilibrium. We investigated the impact of the precursor-product balance on the carotenoid pathway in the endosperm of intact rice plants because this tissue does not normally accumulate carotenoids, allowing us to control each component of the pathway. We generated transgenic plants expressing the maize phytoene synthase gene (ZmPSY1) and the bacterial phytoene desaturase gene (PaCRTI), which are sufficient to produce β-carotene in the presence of endogenous lycopene β-cyclase. We combined this mini-pathway with the Arabidopsis thaliana genes AtDXS (encoding 1-deoxy-D-xylulose 5-phosphate synthase, which supplies metabolic precursors) or AtOR (the ORANGE gene, which promotes the formation of a metabolic sink). Analysis of the resulting transgenic plants suggested that the supply of isoprenoid precursors from the MEP pathway is one of the key factors limiting carotenoid accumulation in the endosperm and that the overexpression of AtOR increased the accumulation of carotenoids in part by up-regulating a series of endogenous carotenogenic genes. The identification of metabolic bottlenecks in the pathway will help to refine strategies for the creation of engineered plants with specific carotenoid profiles.
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Affiliation(s)
- Chao Bai
- Department of Plant Production and Forestry Science, ETSEA, University of Lleida-Agrotecnio Center, Lleida, Spain
| | - Teresa Capell
- Department of Plant Production and Forestry Science, ETSEA, University of Lleida-Agrotecnio Center, Lleida, Spain
| | - Judit Berman
- Department of Plant Production and Forestry Science, ETSEA, University of Lleida-Agrotecnio Center, Lleida, Spain
| | - Vicente Medina
- Department of Plant Production and Forestry Science, ETSEA, University of Lleida-Agrotecnio Center, Lleida, Spain
| | - Gerhard Sandmann
- Institute of Molecular Bioscience, J. W. Goethe University, Frankfurt am Main, Germany
| | - Paul Christou
- Department of Plant Production and Forestry Science, ETSEA, University of Lleida-Agrotecnio Center, Lleida, Spain
- Institucio Catalana de Recerca i Estudis Avancats, Passeig Lluís Companys, Barcelona, Spain
| | - Changfu Zhu
- Department of Plant Production and Forestry Science, ETSEA, University of Lleida-Agrotecnio Center, Lleida, Spain
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Federico ML, Schmidt MA. Modern Breeding and Biotechnological Approaches to Enhance Carotenoid Accumulation in Seeds. Subcell Biochem 2016; 79:345-58. [PMID: 27485229 DOI: 10.1007/978-3-319-39126-7_13] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
There is an increasing demand for carotenoids, which are fundamental components of the human diet, for example as precursors of vitamin A. Carotenoids are also potent antioxidants and their health benefits are becoming increasingly evident. Protective effects against prostate cancer and age-related macular degeneration have been proposed for lycopene and lutein/zeaxanthin, respectively. Additionally, β-carotene, astaxanthin and canthaxanthin are high-value carotenoids used by the food industry as feed supplements and colorants. The production and consumption of these carotenoids from natural sources, especially from seeds, constitutes an important step towards fortifying the diet of malnourished people in developing nations. Therefore, attempts to metabolically manipulate β-carotene production in plants have received global attention, especially after the generation of Golden Rice (Oryza sativa). The endosperms of Golden Rice seeds synthesize and accumulate large quantities of β-carotene (provitamin A), yielding a characteristic yellow color in the polished grains. Classical breeding efforts have also focused in the development of cultivars with elevated seed carotenoid content, with maize and other cereals leading the way. In this communication we will summarize transgenic efforts and modern breeding strategies to fortify various crop seeds with nutraceutical carotenoids.
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Affiliation(s)
- M L Federico
- Genomics and Bioinformatics Unit, Agriaquaculture Nutritional Genomic Center (CGNA), Temuco, Chile
| | - M A Schmidt
- Bio5 Institute and Plant Sciences Department, University of Arizona, Tucson, AZ, 85718, USA.
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Rezaei MK, Deokar A, Tar'an B. Identification and Expression Analysis of Candidate Genes Involved in Carotenoid Biosynthesis in Chickpea Seeds. FRONTIERS IN PLANT SCIENCE 2016; 7:1867. [PMID: 28018400 PMCID: PMC5157839 DOI: 10.3389/fpls.2016.01867] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2016] [Accepted: 11/25/2016] [Indexed: 05/03/2023]
Abstract
Plant carotenoids have a key role in preventing various diseases in human because of their antioxidant and provitamin A properties. Chickpea is a good source of carotenoid among legumes and its diverse germplasm and genome accessibility makes it a good model for carotenogenesis studies. The structure, location, and copy numbers of genes involved in carotenoid biosynthesis were retrieved from the chickpea genome. The majority of the single nucleotide polymorphism (SNPs) within these genes across five diverse chickpea cultivars was synonymous mutation. We examined the expression of the carotenogenesis genes and their association with carotenoid concentration at different seed development stages of five chickpea cultivars. Total carotenoid concentration ranged from 22 μg g-1 in yellow cotyledon kabuli to 44 μg g-1 in green cotyledon desi at 32 days post anthesis (DPA). The majority of carotenoids in chickpea seeds consists of lutein and zeaxanthin. The expression of the selected 19 genes involved in carotenoid biosynthesis pathway showed common pattern across five cultivars with higher expression at 8 and/or 16 DPA then dropped considerably at 24 and 32 DPA. Almost all genes were up-regulated in CDC Jade cultivar. Correlation analysis between gene expression and carotenoid concentration showed that the genes involved in the primary step of carotenoid biosynthesis pathway including carotenoid desaturase and isomerase positively correlated with various carotenoid components in chickpea seeds. A negative correlation was found between hydroxylation activity and provitamin A concentration in the seeds. The highest provitamin A concentration including β-carotene and β-cryptoxanthin were found in green cotyledon chickpea cultivars.
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Chang S, Berman J, Sheng Y, Wang Y, Capell T, Shi L, Ni X, Sandmann G, Christou P, Zhu C. Cloning and Functional Characterization of the Maize (Zea mays L.) Carotenoid Epsilon Hydroxylase Gene. PLoS One 2015; 10:e0128758. [PMID: 26030746 PMCID: PMC4452274 DOI: 10.1371/journal.pone.0128758] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2015] [Accepted: 04/15/2015] [Indexed: 01/18/2023] Open
Abstract
The assignment of functions to genes in the carotenoid biosynthesis pathway is necessary to understand how the pathway is regulated and to obtain the basic information required for metabolic engineering. Few carotenoid ε-hydroxylases have been functionally characterized in plants although this would provide insight into the hydroxylation steps in the pathway. We therefore isolated mRNA from the endosperm of maize (Zea mays L., inbred line B73) and cloned a full-length cDNA encoding CYP97C19, a putative heme-containing carotenoid ε hydroxylase and member of the cytochrome P450 family. The corresponding CYP97C19 genomic locus on chromosome 1 was found to comprise a single-copy gene with nine introns. We expressed CYP97C19 cDNA under the control of the constitutive CaMV 35S promoter in the Arabidopsis thaliana lut1 knockout mutant, which lacks a functional CYP97C1 (LUT1) gene. The analysis of carotenoid levels and composition showed that lutein accumulated to high levels in the rosette leaves of the transgenic lines but not in the untransformed lut1 mutants. These results allowed the unambiguous functional annotation of maize CYP97C19 as an enzyme with strong zeinoxanthin ε-ring hydroxylation activity.
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Affiliation(s)
- Shu Chang
- School of Life Sciences, Changchun Normal University, Changchun, 130032, China
- School of Life Sciences, Beijing Normal University, Beijing, 100875, China
| | - Judit Berman
- Departament de Producció Vegetal i Ciència Forestal, Universitat de Lleida-Agrotecnio Center, Lleida, 25198, Spain
| | - Yanmin Sheng
- School of Life Sciences, Changchun Normal University, Changchun, 130032, China
| | - Yingdian Wang
- School of Life Sciences, Beijing Normal University, Beijing, 100875, China
| | - Teresa Capell
- Departament de Producció Vegetal i Ciència Forestal, Universitat de Lleida-Agrotecnio Center, Lleida, 25198, Spain
| | - Lianxuan Shi
- School of Life Sciences, Northeast Normal University, Changchun, 130024, China
| | - Xiuzhen Ni
- School of Life Sciences, Changchun Normal University, Changchun, 130032, China
| | - Gerhard Sandmann
- Biosynthesis Group, Molecular Biosciences, Goethe University Frankfurt, D-60438, Frankfurt, Germany
| | - Paul Christou
- Departament de Producció Vegetal i Ciència Forestal, Universitat de Lleida-Agrotecnio Center, Lleida, 25198, Spain
- Institució Catalana de Recerca i Estudis Avancats, Barcelona, 08010, Spain
| | - Changfu Zhu
- School of Life Sciences, Changchun Normal University, Changchun, 130032, China
- Departament de Producció Vegetal i Ciència Forestal, Universitat de Lleida-Agrotecnio Center, Lleida, 25198, Spain
- * E-mail:
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Zeng J, Wang C, Chen X, Zang M, Yuan C, Wang X, Wang Q, Li M, Li X, Chen L, Li K, Chang J, Wang Y, Yang G, He G. The lycopene β-cyclase plays a significant role in provitamin A biosynthesis in wheat endosperm. BMC PLANT BIOLOGY 2015; 15:112. [PMID: 25943989 PMCID: PMC4433027 DOI: 10.1186/s12870-015-0514-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2015] [Accepted: 04/29/2015] [Indexed: 05/04/2023]
Abstract
BACKGROUND Lycopene β-cyclase (LCYB) is a key enzyme catalyzing the biosynthesis of β-carotene, the main source of provitamin A. However, there is no documented research about this key cyclase gene's function and relationship with β-carotene content in wheat. Therefore, the objectives of this study were to clone TaLCYB and characterize its function and relationship with β-carotene biosynthesis in wheat grains. We also aimed to obtain more information about the endogenous carotenoid biosynthetic pathway and thus provide experimental support for carotenoid metabolic engineering in wheat. RESULTS In the present study, a lycopene β-cyclase gene, designated TaLCYB, was cloned from the hexaploid wheat cultivar Chinese Spring. The cyclization activity of the encoded protein was demonstrated by heterologous complementation analysis. The TaLCYB gene was expressed differentially in different tissues of wheat. Although TaLCYB had a higher expression level in the later stages of grain development, the β-carotene content still showed a decreasing tendency. The expression of TaLCYB in leaves was dramatically induced by strong light and the β-carotene content variation corresponded with changes of TaLCYB expression. A post-transcriptional gene silencing strategy was used to down-regulate the expression of TaLCYB in transgenic wheat, resulting in a decrease in the content of β-carotene and lutein, accompanied by the accumulation of lycopene to partly compensate for the total carotenoid content. In addition, changes in TaLCYB expression also affected the expression of several endogenous carotenogenic genes to varying degrees. CONCLUSION Our results suggest that TaLCYB is a genuine lycopene cyclase gene and plays a crucial role in β-carotene biosynthesis in wheat. Our attempt to silence it not only contributes to elucidating the mechanism of carotenoid accumulation in wheat but may also help in breeding wheat varieties with high provitamin A content through RNA interference (RNAi) to block specific carotenogenic genes in the wheat endosperm.
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Affiliation(s)
- Jian Zeng
- The Genetic Engineering International Cooperation Base of Chinese Ministry of Science and Technology, The Key Laboratory of Molecular Biophysics of Chinese Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, China.
| | - Cheng Wang
- The Genetic Engineering International Cooperation Base of Chinese Ministry of Science and Technology, The Key Laboratory of Molecular Biophysics of Chinese Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, China.
| | - Xi Chen
- The Genetic Engineering International Cooperation Base of Chinese Ministry of Science and Technology, The Key Laboratory of Molecular Biophysics of Chinese Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, China.
| | - Mingli Zang
- The Genetic Engineering International Cooperation Base of Chinese Ministry of Science and Technology, The Key Laboratory of Molecular Biophysics of Chinese Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, China.
| | - Cuihong Yuan
- The Genetic Engineering International Cooperation Base of Chinese Ministry of Science and Technology, The Key Laboratory of Molecular Biophysics of Chinese Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, China.
| | - Xiatian Wang
- The Genetic Engineering International Cooperation Base of Chinese Ministry of Science and Technology, The Key Laboratory of Molecular Biophysics of Chinese Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, China.
| | - Qiong Wang
- The Genetic Engineering International Cooperation Base of Chinese Ministry of Science and Technology, The Key Laboratory of Molecular Biophysics of Chinese Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, China.
| | - Miao Li
- The Genetic Engineering International Cooperation Base of Chinese Ministry of Science and Technology, The Key Laboratory of Molecular Biophysics of Chinese Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, China.
| | - Xiaoyan Li
- The Genetic Engineering International Cooperation Base of Chinese Ministry of Science and Technology, The Key Laboratory of Molecular Biophysics of Chinese Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, China.
| | - Ling Chen
- The Genetic Engineering International Cooperation Base of Chinese Ministry of Science and Technology, The Key Laboratory of Molecular Biophysics of Chinese Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, China.
| | - Kexiu Li
- The Genetic Engineering International Cooperation Base of Chinese Ministry of Science and Technology, The Key Laboratory of Molecular Biophysics of Chinese Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, China.
| | - Junli Chang
- The Genetic Engineering International Cooperation Base of Chinese Ministry of Science and Technology, The Key Laboratory of Molecular Biophysics of Chinese Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, China.
| | - Yuesheng Wang
- The Genetic Engineering International Cooperation Base of Chinese Ministry of Science and Technology, The Key Laboratory of Molecular Biophysics of Chinese Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, China.
| | - Guangxiao Yang
- The Genetic Engineering International Cooperation Base of Chinese Ministry of Science and Technology, The Key Laboratory of Molecular Biophysics of Chinese Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, China.
| | - Guangyuan He
- The Genetic Engineering International Cooperation Base of Chinese Ministry of Science and Technology, The Key Laboratory of Molecular Biophysics of Chinese Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, China.
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