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Zhao DK, Zhao Y, Chen SY, Kennelly EJ. Solanum steroidal glycoalkaloids: structural diversity, biological activities, and biosynthesis. Nat Prod Rep 2021; 38:1423-1444. [DOI: 10.1039/d1np00001b] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Chemical structures of typical Solanum steroidal glycoalkaloids from eggplant, tomato, and potato.
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Affiliation(s)
- Da-Ke Zhao
- Biocontrol Engineering Research Center of Plant Disease and Pest, Biocontrol Engineering Research Center of Crop Disease and Pest, School of Ecology and Environment, Yunnan University, Kunming, 650504, P. R. China
| | - Yi Zhao
- Department of Biological Sciences, Lehman College, City University of New York, Bronx, New York, 10468, USA
- PhD Program in Biology, The Graduate Center, City University of New York, New York, 10016, USA
| | - Sui-Yun Chen
- Biocontrol Engineering Research Center of Plant Disease and Pest, Biocontrol Engineering Research Center of Crop Disease and Pest, School of Ecology and Environment, Yunnan University, Kunming, 650504, P. R. China
| | - Edward J. Kennelly
- Department of Biological Sciences, Lehman College, City University of New York, Bronx, New York, 10468, USA
- PhD Program in Biology, The Graduate Center, City University of New York, New York, 10016, USA
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102
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Zhan C, Lei L, Liu Z, Zhou S, Yang C, Zhu X, Guo H, Zhang F, Peng M, Zhang M, Li Y, Yang Z, Sun Y, Shi Y, Li K, Liu L, Shen S, Wang X, Shao J, Jing X, Wang Z, Li Y, Czechowski T, Hasegawa M, Graham I, Tohge T, Qu L, Liu X, Fernie AR, Chen LL, Yuan M, Luo J. Selection of a subspecies-specific diterpene gene cluster implicated in rice disease resistance. NATURE PLANTS 2020; 6:1447-1454. [PMID: 33299150 DOI: 10.1038/s41477-020-00816-7] [Citation(s) in RCA: 57] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Accepted: 11/04/2020] [Indexed: 05/24/2023]
Abstract
Diterpenoids are the major group of antimicrobial phytoalexins in rice1,2. Here, we report the discovery of a rice diterpenoid gene cluster on chromosome 7 (DGC7) encoding the entire biosynthetic pathway to 5,10-diketo-casbene, a member of the monocyclic casbene-derived diterpenoids. We revealed that DGC7 is regulated directly by JMJ705 through methyl jasmonate-mediated epigenetic control3. Functional characterization of pathway genes revealed OsCYP71Z21 to encode a casbene C10 oxidase, sought after for the biosynthesis of an array of medicinally important diterpenoids. We further show that DGC7 arose relatively recently in the Oryza genus, and that it was partly formed in Oryza rufipogon and positively selected for in japonica during domestication. Casbene-synthesizing enzymes that are functionally equivalent to OsTPS28 are present in several species of Euphorbiaceae but gene tree analysis shows that these and other casbene-modifying enzymes have evolved independently. As such, combining casbene-modifying enzymes from these different families of plants may prove effective in producing a diverse array of bioactive diterpenoid natural products.
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Affiliation(s)
- Chuansong Zhan
- National Key Laboratory of Crop Genetic Improvement and National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University, Wuhan, China
| | - Long Lei
- National Key Laboratory of Crop Genetic Improvement and National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University, Wuhan, China
- College of Tropical Crops, Hainan University, Haikou, China
| | - Zixin Liu
- National Key Laboratory of Crop Genetic Improvement and National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University, Wuhan, China
| | - Shen Zhou
- National Key Laboratory of Crop Genetic Improvement and National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University, Wuhan, China
| | - Chenkun Yang
- National Key Laboratory of Crop Genetic Improvement and National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University, Wuhan, China
| | - Xitong Zhu
- National Key Laboratory of Crop Genetic Improvement and National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University, Wuhan, China
| | - Hao Guo
- National Key Laboratory of Crop Genetic Improvement and National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University, Wuhan, China
- College of Tropical Crops, Hainan University, Haikou, China
| | - Feng Zhang
- National Key Laboratory of Crop Genetic Improvement and National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University, Wuhan, China
| | - Meng Peng
- National Key Laboratory of Crop Genetic Improvement and National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University, Wuhan, China
| | - Meng Zhang
- National Key Laboratory of Crop Genetic Improvement and National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University, Wuhan, China
| | - Yufei Li
- National Key Laboratory of Crop Genetic Improvement and National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University, Wuhan, China
| | - Zixin Yang
- National Key Laboratory of Crop Genetic Improvement and National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University, Wuhan, China
| | - Yangyang Sun
- National Key Laboratory of Crop Genetic Improvement and National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University, Wuhan, China
| | - Yuheng Shi
- National Key Laboratory of Crop Genetic Improvement and National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University, Wuhan, China
| | - Kang Li
- National Key Laboratory of Crop Genetic Improvement and National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University, Wuhan, China
| | - Ling Liu
- College of Tropical Crops, Hainan University, Haikou, China
| | - Shuangqian Shen
- National Key Laboratory of Crop Genetic Improvement and National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University, Wuhan, China
| | - Xuyang Wang
- National Key Laboratory of Crop Genetic Improvement and National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University, Wuhan, China
| | - Jiawen Shao
- National Key Laboratory of Crop Genetic Improvement and National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University, Wuhan, China
| | - Xinyu Jing
- National Key Laboratory of Crop Genetic Improvement and National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University, Wuhan, China
| | - Zixuan Wang
- National Key Laboratory of Crop Genetic Improvement and National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University, Wuhan, China
| | - Yi Li
- Centre for Novel Agricultural Products, Department of Biology, University of York, York, UK
| | - Tomasz Czechowski
- Centre for Novel Agricultural Products, Department of Biology, University of York, York, UK
| | | | - Ian Graham
- Centre for Novel Agricultural Products, Department of Biology, University of York, York, UK
| | - Takayuki Tohge
- Graduate School of Biological Sciences, Nara Institute of Science and Technology, Ikoma, Japan
| | - Lianghuan Qu
- National Key Laboratory of Crop Genetic Improvement and National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University, Wuhan, China
| | - Xianqing Liu
- National Key Laboratory of Crop Genetic Improvement and National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University, Wuhan, China
- College of Tropical Crops, Hainan University, Haikou, China
| | - Alisdair R Fernie
- Max Planck Institute of Molecular Plant Physiology, Potsdam-Golm, Germany
| | - Ling-Ling Chen
- National Key Laboratory of Crop Genetic Improvement and National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University, Wuhan, China
| | - Meng Yuan
- National Key Laboratory of Crop Genetic Improvement and National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University, Wuhan, China
| | - Jie Luo
- College of Tropical Crops, Hainan University, Haikou, China.
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103
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Eljounaidi K, Lichman BR. Nature's Chemists: The Discovery and Engineering of Phytochemical Biosynthesis. Front Chem 2020; 8:596479. [PMID: 33240856 PMCID: PMC7680914 DOI: 10.3389/fchem.2020.596479] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Accepted: 10/09/2020] [Indexed: 12/03/2022] Open
Abstract
Plants produce a diverse array of natural products, many of which have high pharmaceutical value or therapeutic potential. However, these compounds often occur at low concentrations in uncultivated species. Producing phytochemicals in heterologous systems has the potential to address the bioavailability issues related to obtaining these molecules from their natural source. Plants are suitable heterologous systems for the production of valuable phytochemicals as they are autotrophic, derive energy and carbon from photosynthesis, and have similar cellular context to native producer plants. In this review we highlight the methods that are used to elucidate natural product biosynthetic pathways, including the approaches leading to proposing the sequence of enzymatic steps, selecting enzyme candidates and characterizing gene function. We will also discuss the advantages of using plant chasses as production platforms for high value phytochemicals. In addition, through this report we will assess the emerging metabolic engineering strategies that have been developed to enhance and optimize the production of natural and novel bioactive phytochemicals in heterologous plant systems.
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Affiliation(s)
- Kaouthar Eljounaidi
- Centre for Novel Agricultural Products, Department of Biology, University of York, York, United Kingdom
| | - Benjamin R Lichman
- Centre for Novel Agricultural Products, Department of Biology, University of York, York, United Kingdom
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104
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Mahalingam R, Sallam AH, Steffenson BJ, Fiedler JD, Walling JG. Genome-wide association analysis of natural variation in seed tocochromanols of barley. THE PLANT GENOME 2020; 13:e20039. [PMID: 33217201 DOI: 10.1002/tpg2.20039] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Accepted: 06/06/2020] [Indexed: 06/11/2023]
Abstract
Tocochromanols (tocols for short), commonly called Vitamin E, are lipid-soluble plant antioxidants vital for regulating lipid peroxidation in chloroplasts and seeds. Barley (Hordeum vulgare L.) seeds contain all eight different isoforms of tocols; however, the extent of natural variation in their composition and their underlying genetic basis is not known. Tocol levels in barley seeds were quantified in diverse H. vulgare panels comprising 297 wild lines from a diversity panel and 160 cultivated spring-type accessions from the mini-core panel representing the genetic diversity of the USDA barley germplasm collection. Significant differences were observed in the concentration of tocols between the two panels. To identify the genes associated with tocols, genome-wide association analysis was conducted with single nucleotide polymorphisms (SNPs) from Illumina arrays for the mini-core panel and genotyping-by-sequencing for the wild barley panel. Forty unique SNPs in the wild barley and 27 SNPs in the mini-core panel were significantly associated with various tocols. Marker-trait associations (MTAs) were identified on chromosomes 1, 6, and 7 for key genes in the tocol biosynthesis pathway, which have also been reported in other studies. Several novel MTAs were identified on chromosomes 2, 3, 4 and 5 and were found to be in proximity to genes involved in the generation of precursor metabolites required for tocol biosynthesis. This study provides a valuable resource for barley breeding programs targeting specific isoforms of seed tocols and for investigating the physiological roles of these metabolites in seed longevity, dormancy, and germination.
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Affiliation(s)
| | - Ahmad H Sallam
- Department of Plant Pathology, Univ. of Minnesota, St. Paul, MN, 55108, USA
| | - Brian J Steffenson
- Department of Plant Pathology, Univ. of Minnesota, St. Paul, MN, 55108, USA
| | - Jason D Fiedler
- USDA-ARS, Cereal Crops Research Unit, 1616 Albrecht Blvd, Fargo, ND, 58102, USA
| | - Jason G Walling
- USDA-ARS, Cereal Crops Research Unit, 502 Walnut Street, Madison, WI, 53726, USA
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105
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Li Y, Wei H, Yang J, Du K, Li J, Zhang Y, Qiu T, Liu Z, Ren Y, Song L, Kang X. High-quality de novo assembly of the Eucommia ulmoides haploid genome provides new insights into evolution and rubber biosynthesis. HORTICULTURE RESEARCH 2020; 7:183. [PMID: 33328448 PMCID: PMC7603500 DOI: 10.1038/s41438-020-00406-w] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 08/13/2020] [Accepted: 09/04/2020] [Indexed: 05/06/2023]
Abstract
We report the acquisition of a high-quality haploid chromosome-scale genome assembly for the first time in a tree species, Eucommia ulmoides, which is known for its rubber biosynthesis and medicinal applications. The assembly was obtained by applying PacBio and Hi-C technologies to a haploid that we specifically generated. Compared to the initial genome release, this one has significantly improved assembly quality. The scaffold N50 (53.15 MB) increased 28-fold, and the repetitive sequence content (520 Mb) increased by 158.24 Mb, whereas the number of gaps decreased from 104,772 to 128. A total of 92.87% of the 26,001 predicted protein-coding genes identified with multiple strategies were anchored to the 17 chromosomes. A new whole-genome duplication event was superimposed on the earlier γ paleohexaploidization event, and the expansion of long terminal repeats contributed greatly to the evolution of the genome. The more primitive rubber biosynthesis of this species, as opposed to that in Hevea brasiliensis, relies on the methylerythritol-phosphate pathway rather than the mevalonate pathway to synthesize isoprenyl diphosphate, as the MEP pathway operates predominantly in trans-polyisoprene-containing leaves and central peels. Chlorogenic acid biosynthesis pathway enzymes were preferentially expressed in leaves rather than in bark. This assembly with higher sequence contiguity can foster not only studies on genome structure and evolution, gene mapping, epigenetic analysis and functional genomics but also efforts to improve E. ulmoides for industrial and medical uses through genetic engineering.
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Affiliation(s)
- Yun Li
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, Beijing Forestry University, 100083, Beijing, People's Republic of China
- National Engineering Laboratory for Tree Breeding, Beijing Forestry University, 100083, Beijing, People's Republic of China
- College of Biological Sciences and Technology, Beijing Forestry University, 100083, Beijing, People's Republic of China
| | - Hairong Wei
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, Beijing Forestry University, 100083, Beijing, People's Republic of China
- School of Forest Resources and Environmental, Science, Michigan Technological University, Houghton, MI, 49931, USA
| | - Jun Yang
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, Beijing Forestry University, 100083, Beijing, People's Republic of China
- National Engineering Laboratory for Tree Breeding, Beijing Forestry University, 100083, Beijing, People's Republic of China
- College of Biological Sciences and Technology, Beijing Forestry University, 100083, Beijing, People's Republic of China
| | - Kang Du
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, Beijing Forestry University, 100083, Beijing, People's Republic of China
- National Engineering Laboratory for Tree Breeding, Beijing Forestry University, 100083, Beijing, People's Republic of China
- College of Biological Sciences and Technology, Beijing Forestry University, 100083, Beijing, People's Republic of China
| | - Jiang Li
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, Beijing Forestry University, 100083, Beijing, People's Republic of China
- National Engineering Laboratory for Tree Breeding, Beijing Forestry University, 100083, Beijing, People's Republic of China
- College of Biological Sciences and Technology, Beijing Forestry University, 100083, Beijing, People's Republic of China
| | - Ying Zhang
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, Beijing Forestry University, 100083, Beijing, People's Republic of China
- National Engineering Laboratory for Tree Breeding, Beijing Forestry University, 100083, Beijing, People's Republic of China
- College of Biological Sciences and Technology, Beijing Forestry University, 100083, Beijing, People's Republic of China
| | - Tong Qiu
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, Beijing Forestry University, 100083, Beijing, People's Republic of China
- National Engineering Laboratory for Tree Breeding, Beijing Forestry University, 100083, Beijing, People's Republic of China
- College of Biological Sciences and Technology, Beijing Forestry University, 100083, Beijing, People's Republic of China
| | - Zhao Liu
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, Beijing Forestry University, 100083, Beijing, People's Republic of China
- National Engineering Laboratory for Tree Breeding, Beijing Forestry University, 100083, Beijing, People's Republic of China
- College of Biological Sciences and Technology, Beijing Forestry University, 100083, Beijing, People's Republic of China
| | - Yongyu Ren
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, Beijing Forestry University, 100083, Beijing, People's Republic of China
- National Engineering Laboratory for Tree Breeding, Beijing Forestry University, 100083, Beijing, People's Republic of China
- College of Biological Sciences and Technology, Beijing Forestry University, 100083, Beijing, People's Republic of China
| | - Lianjun Song
- Hebei Huayang Fine Seeds and Seedlings Co., Ltd., 054700, Hebei, People's Republic of China
| | - Xiangyang Kang
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, Beijing Forestry University, 100083, Beijing, People's Republic of China.
- National Engineering Laboratory for Tree Breeding, Beijing Forestry University, 100083, Beijing, People's Republic of China.
- College of Biological Sciences and Technology, Beijing Forestry University, 100083, Beijing, People's Republic of China.
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106
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Zhou X, Liu L, Li Y, Li K, Liu X, Zhou J, Yang C, Liu X, Fang C, Luo J. Integrative Metabolomic and Transcriptomic Analyses Reveal Metabolic Changes and Its Molecular Basis in Rice Mutants of the Strigolactone Pathway. Metabolites 2020; 10:metabo10110425. [PMID: 33114491 PMCID: PMC7693813 DOI: 10.3390/metabo10110425] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Revised: 10/21/2020] [Accepted: 10/23/2020] [Indexed: 11/24/2022] Open
Abstract
Plants have evolved many metabolites to meet the demands of growth and adaptation. Although strigolactones (SLs) play vital roles in controlling plant architecture, their function in regulating plant metabolism remains elusive. Here we report the integrative metabolomic and transcriptomic analyses of two rice SL mutants, d10 (a biosynthesis mutant) and d14 (a perception mutant). Both mutants displayed a series of metabolic and transcriptional alterations, especially in the lipid, flavonoid, and terpenoid pathways. Levels of several diterpenoid phytoalexins were substantially increased in d10 and d14, together with the induction of terpenoid gene cluster and the corresponding upstream transcription factor WRKY45, an established determinant of plant immunity. The fact that WRKY45 is a target of IPA1, which acted as a downstream transcription factor of SL signaling, suggests that SLs contribute to plant defense through WRKY45 and phytoalexins. Moreover, our data indicated that SLs may modulate rice metabolism through a vast number of clustered or tandemly duplicated genes. Our work revealed a central role of SLs in rice metabolism. Meanwhile, integrative analysis of the metabolome and transcriptome also suggested that SLs may contribute to metabolite-associated growth and defense.
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Affiliation(s)
- Xiujuan Zhou
- College of Tropical Crops, Hainan University, Haikou, Hainan 570288, China; (X.Z.); (L.L.); (K.L.); (X.L.); (J.Z.); (X.L.)
| | - Ling Liu
- College of Tropical Crops, Hainan University, Haikou, Hainan 570288, China; (X.Z.); (L.L.); (K.L.); (X.L.); (J.Z.); (X.L.)
| | - Yufei Li
- National Key Laboratory of Crop Genetic Improvement and National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University, Wuhan 430070, China; (Y.L.); (C.Y.)
| | - Kang Li
- College of Tropical Crops, Hainan University, Haikou, Hainan 570288, China; (X.Z.); (L.L.); (K.L.); (X.L.); (J.Z.); (X.L.)
| | - Xiaoli Liu
- College of Tropical Crops, Hainan University, Haikou, Hainan 570288, China; (X.Z.); (L.L.); (K.L.); (X.L.); (J.Z.); (X.L.)
| | - Junjie Zhou
- College of Tropical Crops, Hainan University, Haikou, Hainan 570288, China; (X.Z.); (L.L.); (K.L.); (X.L.); (J.Z.); (X.L.)
| | - Chenkun Yang
- National Key Laboratory of Crop Genetic Improvement and National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University, Wuhan 430070, China; (Y.L.); (C.Y.)
| | - Xianqing Liu
- College of Tropical Crops, Hainan University, Haikou, Hainan 570288, China; (X.Z.); (L.L.); (K.L.); (X.L.); (J.Z.); (X.L.)
| | - Chuanying Fang
- College of Tropical Crops, Hainan University, Haikou, Hainan 570288, China; (X.Z.); (L.L.); (K.L.); (X.L.); (J.Z.); (X.L.)
- Correspondence: (C.F.); (J.L.)
| | - Jie Luo
- College of Tropical Crops, Hainan University, Haikou, Hainan 570288, China; (X.Z.); (L.L.); (K.L.); (X.L.); (J.Z.); (X.L.)
- National Key Laboratory of Crop Genetic Improvement and National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University, Wuhan 430070, China; (Y.L.); (C.Y.)
- Correspondence: (C.F.); (J.L.)
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107
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Kong D, Li S, Smolke CD. Discovery of a previously unknown biosynthetic capacity of naringenin chalcone synthase by heterologous expression of a tomato gene cluster in yeast. SCIENCE ADVANCES 2020; 6:6/44/eabd1143. [PMID: 33127687 PMCID: PMC7608815 DOI: 10.1126/sciadv.abd1143] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Accepted: 09/14/2020] [Indexed: 05/11/2023]
Abstract
Chalcone synthase (CHS) canonically catalyzes carbon-carbon bond formation through iterative decarboxylative Claisen condensation. Here, we characterize a previously unidentified biosynthetic capability of SlCHS to catalyze nitrogen-carbon bond formation, leading to the production of a hydroxycinnamic acid amide (HCAA) compound. By expressing a putative tomato (Solanum lycopersicum) gene cluster in yeast (Saccharomyces cerevisiae), we elucidate the activity of a pathway consisting of a carboxyl methyltransferase (SlMT2), which methylates the yeast primary metabolite 3-hydroxyanthranilic acid (3-HAA) to form a methyl ester, and a SlCHS, which catalyzes the condensation of 3-HAA methyl ester and p-coumaroyl-coenzyme A (CoA) through formation of an amide bond. We demonstrate that this aminoacylation activity could be a common secondary activity in plant CHSs by validating the activity in vitro with variants from S. lycopersicum and Arabidopsis thaliana Our work demonstrates yeast as a platform for characterizing putative plant gene clusters with the potential for compound structure and enzymatic activity discovery.
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Affiliation(s)
- Deze Kong
- Department of Bioengineering, 443 Via Ortega, MC 4245, Stanford University, Stanford, CA 94305, USA
| | - Sijin Li
- Robert Frederick Smith School of Chemical and Biomolecular Engineering, 230A Olin Hall, Cornell University, Ithaca, NY 14853, USA
| | - Christina D Smolke
- Department of Bioengineering, 443 Via Ortega, MC 4245, Stanford University, Stanford, CA 94305, USA.
- Chan Zuckerberg Biohub, San Francisco, CA 94158, USA
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108
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Bioactive compounds and health benefits of Pereskioideae and Cactoideae: A review. Food Chem 2020; 327:126961. [DOI: 10.1016/j.foodchem.2020.126961] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Revised: 04/09/2020] [Accepted: 04/29/2020] [Indexed: 02/08/2023]
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109
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Naranjo‐Ortiz MA, Gabaldón T. Fungal evolution: cellular, genomic and metabolic complexity. Biol Rev Camb Philos Soc 2020; 95:1198-1232. [PMID: 32301582 PMCID: PMC7539958 DOI: 10.1111/brv.12605] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Revised: 03/31/2020] [Accepted: 04/02/2020] [Indexed: 12/13/2022]
Abstract
The question of how phenotypic and genomic complexity are inter-related and how they are shaped through evolution is a central question in biology that historically has been approached from the perspective of animals and plants. In recent years, however, fungi have emerged as a promising alternative system to address such questions. Key to their ecological success, fungi present a broad and diverse range of phenotypic traits. Fungal cells can adopt many different shapes, often within a single species, providing them with great adaptive potential. Fungal cellular organizations span from unicellular forms to complex, macroscopic multicellularity, with multiple transitions to higher or lower levels of cellular complexity occurring throughout the evolutionary history of fungi. Similarly, fungal genomes are very diverse in their architecture. Deep changes in genome organization can occur very quickly, and these phenomena are known to mediate rapid adaptations to environmental changes. Finally, the biochemical complexity of fungi is huge, particularly with regard to their secondary metabolites, chemical products that mediate many aspects of fungal biology, including ecological interactions. Herein, we explore how the interplay of these cellular, genomic and metabolic traits mediates the emergence of complex phenotypes, and how this complexity is shaped throughout the evolutionary history of Fungi.
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Affiliation(s)
- Miguel A. Naranjo‐Ortiz
- Bioinformatics and Genomics Programme, Centre for Genomic Regulation (CRG)The Barcelona Institute of Science and TechnologyDr. Aiguader 88, Barcelona08003Spain
| | - Toni Gabaldón
- Bioinformatics and Genomics Programme, Centre for Genomic Regulation (CRG)The Barcelona Institute of Science and TechnologyDr. Aiguader 88, Barcelona08003Spain
- Department of Experimental Sciences, Universitat Pompeu Fabra (UPF)Dr. Aiguader 88, 08003BarcelonaSpain
- ICREAPg. Lluís Companys 23, 08010BarcelonaSpain
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110
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Gao X, Zhang X, Chen W, Li J, Yang W, Zhang X, Li S, Liu C. Transcriptome analysis of Paris polyphylla var. yunnanensis illuminates the biosynthesis and accumulation of steroidal saponins in rhizomes and leaves. PHYTOCHEMISTRY 2020; 178:112460. [PMID: 32692662 DOI: 10.1016/j.phytochem.2020.112460] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Revised: 07/10/2020] [Accepted: 07/12/2020] [Indexed: 06/11/2023]
Abstract
Paris polyphylla var. yunnanensis can synthesize Paris saponins with multiple effective therapies, and its rhizome has become an indispensable ingredient in many patented drugs. However, how Paris saponin content changes in tissues at different stages and the molecular mechanisms underlying the production and accumulation of the bioactive compounds are unclear. This study aimed to uncover the mechanisms underlying the biosynthesis and accumulation by integrating transcriptome sequencing and phytochemical investigation of the leaves and rhizomes at different growth stages. Paris saponin content in leaves was lower during the fruiting stage than the vegetative stage, whereas the content in rhizomes increased during the fruiting stage. The candidate genes related to Paris saponin biosynthesis were determined by transcriptome analyses. Most biosynthetic genes were found to be abundantly expressed in the leaves during the vegetative stage in the light of expression profiles and functional enrichment results. The expression patterns of the differentially expressed genes related to the biosynthesis were positively correlated with the accumulation of saponins in tissues. These findings suggest that both leaves and rhizomes are capable of biosynthesizing Paris saponins, and that aerial plant parts can be used to extract them. The different patterns of biosynthesis and accumulation in the leaves and rhizomes were also determined here. This study will help improve our understanding of the mechanisms underlying the biosynthesis and accumulation of Paris saponins, and aid in the comprehensive development and utilization of this medicinal plant.
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Affiliation(s)
- Xiaoyang Gao
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, Yunnan, 650223, China
| | - Xuan Zhang
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, Yunnan, 650223, China; College of Life Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Wen Chen
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, Yunnan, 650223, China
| | - Jing Li
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, Yunnan, 650223, China; College of Life Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Wenjing Yang
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, Yunnan, 650223, China; College of Life Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xingwang Zhang
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao, Shandong, 266237, China
| | - Shengying Li
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao, Shandong, 266237, China
| | - Changning Liu
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, Yunnan, 650223, China; Center of Economic Botany, Core Botanical Gardens, Chinese Academy of Sciences, Menglun, Mengla, Yunnan, 666303, China; The Innovative Academy of Seed Design, Chinese Academy of Sciences, Kunming, Yunnan, 650223, China.
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111
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Hamilton JP, Godden GT, Lanier E, Bhat WW, Kinser TJ, Vaillancourt B, Wang H, Wood JC, Jiang J, Soltis PS, Soltis DE, Hamberger B, Buell CR. Generation of a chromosome-scale genome assembly of the insect-repellent terpenoid-producing Lamiaceae species, Callicarpa americana. Gigascience 2020; 9:giaa093. [PMID: 32893861 PMCID: PMC7476102 DOI: 10.1093/gigascience/giaa093] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Revised: 07/03/2020] [Accepted: 08/11/2020] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Plants exhibit wide chemical diversity due to the production of specialized metabolites that function as pollinator attractants, defensive compounds, and signaling molecules. Lamiaceae (mints) are known for their chemodiversity and have been cultivated for use as culinary herbs, as well as sources of insect repellents, health-promoting compounds, and fragrance. FINDINGS We report the chromosome-scale genome assembly of Callicarpa americana L. (American beautyberry), a species within the early-diverging Callicarpoideae clade of Lamiaceae, known for its metallic purple fruits and use as an insect repellent due to its production of terpenoids. Using long-read sequencing and Hi-C scaffolding, we generated a 506.1-Mb assembly spanning 17 pseudomolecules with N50 contig and N50 scaffold sizes of 7.5 and 29.0 Mb, respectively. In all, 32,164 genes were annotated, including 53 candidate terpene synthases and 47 putative clusters of specialized metabolite biosynthetic pathways. Our analyses revealed 3 putative whole-genome duplication events, which, together with local tandem duplications, contributed to gene family expansion of terpene synthases. Kolavenyl diphosphate is a gateway to many of the bioactive terpenoids in C. americana; experimental validation confirmed that CamTPS2 encodes kolavenyl diphosphate synthase. Syntenic analyses with Tectona grandis L. f. (teak), a member of the Tectonoideae clade of Lamiaceae known for exceptionally strong wood resistant to insects, revealed 963 collinear blocks and 21,297 C. americana syntelogs. CONCLUSIONS Access to the C. americana genome provides a road map for rapid discovery of genes encoding plant-derived agrichemicals and a key resource for understanding the evolution of chemical diversity in Lamiaceae.
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Affiliation(s)
- John P Hamilton
- Department of Plant Biology, Michigan State University, 612 Wilson Road, East Lansing, MI 48824, USA
| | - Grant T Godden
- Florida Museum of Natural History, University of Florida, 3215 Hull Road, Gainesville, FL 32611, USA
| | - Emily Lanier
- Department of Biochemistry & Molecular Biology, Michigan State University, 603 Wilson Rd, East Lansing, MI 48824, USA
| | - Wajid Waheed Bhat
- Department of Biochemistry & Molecular Biology, Michigan State University, 603 Wilson Rd, East Lansing, MI 48824, USA
| | - Taliesin J Kinser
- Florida Museum of Natural History, University of Florida, 3215 Hull Road, Gainesville, FL 32611, USA
- Department of Biology, University of Florida, 876 Newell Dr, Gainesville, Florida, 32611 USA
| | - Brieanne Vaillancourt
- Department of Plant Biology, Michigan State University, 612 Wilson Road, East Lansing, MI 48824, USA
| | - Haiyan Wang
- Department of Plant Biology, Michigan State University, 612 Wilson Road, East Lansing, MI 48824, USA
| | - Joshua C Wood
- Department of Plant Biology, Michigan State University, 612 Wilson Road, East Lansing, MI 48824, USA
| | - Jiming Jiang
- Department of Plant Biology, Michigan State University, 612 Wilson Road, East Lansing, MI 48824, USA
- Department of Horticulture, Michigan State University, 1066 Bogue St, East Lansing, MI 48824, USA
- MSU AgBioResearch, Michigan State University, 446 W. Circle Drive, East Lansing, MI 48824, USA
| | - Pamela S Soltis
- Florida Museum of Natural History, University of Florida, 3215 Hull Road, Gainesville, FL 32611, USA
| | - Douglas E Soltis
- Florida Museum of Natural History, University of Florida, 3215 Hull Road, Gainesville, FL 32611, USA
- Department of Biology, University of Florida, 876 Newell Dr, Gainesville, Florida, 32611 USA
| | - Bjoern Hamberger
- Department of Biochemistry & Molecular Biology, Michigan State University, 603 Wilson Rd, East Lansing, MI 48824, USA
- MSU AgBioResearch, Michigan State University, 446 W. Circle Drive, East Lansing, MI 48824, USA
| | - C Robin Buell
- Department of Plant Biology, Michigan State University, 612 Wilson Road, East Lansing, MI 48824, USA
- MSU AgBioResearch, Michigan State University, 446 W. Circle Drive, East Lansing, MI 48824, USA
- Plant Resilience Institute, Michigan State University, 612 Wilson Road, East Lansing, MI 48824, USA
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112
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Forsythe ES, Nelson ADL, Beilstein MA. Biased Gene Retention in the Face of Introgression Obscures Species Relationships. Genome Biol Evol 2020; 12:1646-1663. [PMID: 33011798 PMCID: PMC7533067 DOI: 10.1093/gbe/evaa149] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/10/2020] [Indexed: 12/13/2022] Open
Abstract
Phylogenomic analyses are recovering previously hidden histories of hybridization, revealing the genomic consequences of these events on the architecture of extant genomes. We applied phylogenomic techniques and several complementary statistical tests to show that introgressive hybridization appears to have occurred between close relatives of Arabidopsis, resulting in cytonuclear discordance and impacting our understanding of species relationships in the group. The composition of introgressed and retained genes indicates that selection against incompatible cytonuclear and nuclear-nuclear interactions likely acted during introgression, whereas linkage also contributed to genome composition through the retention of ancient haplotype blocks. We also applied divergence-based tests to determine the species branching order and distinguish donor from recipient lineages. Surprisingly, these analyses suggest that cytonuclear discordance arose via extensive nuclear, rather than cytoplasmic, introgression. If true, this would mean that most of the nuclear genome was displaced during introgression whereas only a small proportion of native alleles were retained.
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113
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Lichman BR. The scaffold-forming steps of plant alkaloid biosynthesis. Nat Prod Rep 2020; 38:103-129. [PMID: 32745157 DOI: 10.1039/d0np00031k] [Citation(s) in RCA: 71] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Alkaloids from plants are characterised by structural diversity and bioactivity, and maintain a privileged position in both modern and traditional medicines. In recent years, there have been significant advances in elucidating the biosynthetic origins of plant alkaloids. In this review, I will describe the progress made in determining the metabolic origins of the so-called true alkaloids, specialised metabolites derived from amino acids containing a nitrogen heterocycle. By identifying key biosynthetic steps that feature in the majority of pathways, I highlight the key roles played by modifications to primary metabolism, iminium reactivity and spontaneous reactions in the molecular and evolutionary origins of these pathways.
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Affiliation(s)
- Benjamin R Lichman
- Centre for Novel Agricultural Products, Department of Biology, University of York, York YO10 5DD, UK.
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114
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Liu Z, Suarez Duran HG, Harnvanichvech Y, Stephenson MJ, Schranz ME, Nelson D, Medema MH, Osbourn A. Drivers of metabolic diversification: how dynamic genomic neighbourhoods generate new biosynthetic pathways in the Brassicaceae. THE NEW PHYTOLOGIST 2020; 227:1109-1123. [PMID: 31769874 PMCID: PMC7383575 DOI: 10.1111/nph.16338] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2019] [Accepted: 11/17/2019] [Indexed: 05/11/2023]
Abstract
Plants produce an array of specialized metabolites with important ecological functions. The mechanisms underpinning the evolution of new biosynthetic pathways are not well-understood. Here, we exploit available genome sequence resources to investigate triterpene biosynthesis across the Brassicaceae. Oxidosqualene cyclases (OSCs) catalyze the first committed step in triterpene biosynthesis. Systematic analysis of 13 sequenced Brassicaceae genomes was performed to identify all OSC genes. The genome neighbourhoods (GNs) around a total of 163 OSC genes were investigated to identify Pfam domains significantly enriched in these regions. All-vs-all comparisons of OSC neighbourhoods and phylogenomic analysis were used to investigate the sequence similarity and evolutionary relationships of the numerous candidate triterpene biosynthetic gene clusters (BGCs) observed. Functional analysis of three representative BGCs was carried out and their triterpene pathway products were elucidated. Our results indicate that plant genomes are remarkably plastic, and that dynamic GNs generate new biosynthetic pathways in different Brassicaceae lineages by shuffling the genes encoding a core palette of triterpene-diversifying enzymes, presumably in response to strong environmental selection pressure. These results illuminate a genomic basis for diversification of plant-specialized metabolism through natural combinatorics of enzyme families, which can be mimicked using synthetic biology to engineer diverse bioactive molecules.
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Affiliation(s)
- Zhenhua Liu
- Department of Metabolic BiologyJohn Innes CentreNorwich Research Park, Colney LaneNorwichNR4 7UHUK
| | | | - Yosapol Harnvanichvech
- Bioinformatics GroupWageningen UniversityDroevendaalsesteeg 16708PBWageningenthe Netherlands
| | - Michael J. Stephenson
- Department of Metabolic BiologyJohn Innes CentreNorwich Research Park, Colney LaneNorwichNR4 7UHUK
| | - M. Eric Schranz
- Biosystematics GroupWageningen UniversityDroevendaalsesteeg 16708PBWageningenthe Netherlands
| | - David Nelson
- Department of Microbiology, Immunology and BiochemistryUniversity of Tennessee858 Madison Avenue, Suite G01MemphisTN38163USA
| | - Marnix H. Medema
- Bioinformatics GroupWageningen UniversityDroevendaalsesteeg 16708PBWageningenthe Netherlands
| | - Anne Osbourn
- Department of Metabolic BiologyJohn Innes CentreNorwich Research Park, Colney LaneNorwichNR4 7UHUK
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115
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Roda FA, Marques I, Batista-Santos P, Esquível MG, Ndayiragije A, Lidon FC, Swamy BPM, Ramalho JC, Ribeiro-Barros AI. Rice Biofortification With Zinc and Selenium: A Transcriptomic Approach to Understand Mineral Accumulation in Flag Leaves. Front Genet 2020; 11:543. [PMID: 32733530 PMCID: PMC7359728 DOI: 10.3389/fgene.2020.00543] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2019] [Accepted: 05/05/2020] [Indexed: 11/13/2022] Open
Abstract
Human malnutrition due to micronutrient deficiencies, particularly with regards to Zinc (Zn) and Selenium (Se), affects millions of people around the world, and the enrichment of staple foods through biofortification has been successfully used to fight hidden hunger. Rice (Oryza sativa L.) is one of the staple foods most consumed in countries with high levels of malnutrition. However, it is poor in micronutrients, which are often removed during grain processing. In this study, we have analyzed the transcriptome of rice flag leaves biofortified with Zn (900 g ha-1), Se (500 g ha-1), and Zn-Se. Flag leaves play an important role in plant photosynthesis and provide sources of metal remobilization for developing grains. A total of 3170 differentially expressed genes (DEGs) were identified. The expression patterns and gene ontology of DEGs varied among the three sets of biofortified plants and were limited to specific metabolic pathways related to micronutrient mobilization and to the specific functions of Zn (i.e., its enzymatic co-factor/coenzyme function in the biosynthesis of nitrogenous compounds, carboxylic acids, organic acids, and amino acids) and Se (vitamin biosynthesis and ion homeostasis). The success of this approach should be followed in future studies to understand how landraces and other cultivars respond to biofortification.
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Affiliation(s)
- Faustino Adriano Roda
- Ministério de Agricultura e Segurança Alimentar, Instituto de Investigação Agrária de Moçambique, Centro Zonal Noroeste, Lichinga, Mozambique
- Universidade Eduardo Mondlane-Centro de Biotechnologia, Maputo, Mozambique
- PlantStress&Biodiversity Lab, Forest Research Center (IM, JCR, AIRB) and Linking, Landscape, Environment, Agriculture and Food (PBS, MGE), Instituto Superior de Agronomia, Universidade de Lisboa, Lisbon, Portugal
| | - Isabel Marques
- PlantStress&Biodiversity Lab, Forest Research Center (IM, JCR, AIRB) and Linking, Landscape, Environment, Agriculture and Food (PBS, MGE), Instituto Superior de Agronomia, Universidade de Lisboa, Lisbon, Portugal
| | - Paula Batista-Santos
- PlantStress&Biodiversity Lab, Forest Research Center (IM, JCR, AIRB) and Linking, Landscape, Environment, Agriculture and Food (PBS, MGE), Instituto Superior de Agronomia, Universidade de Lisboa, Lisbon, Portugal
| | - Maria Glória Esquível
- PlantStress&Biodiversity Lab, Forest Research Center (IM, JCR, AIRB) and Linking, Landscape, Environment, Agriculture and Food (PBS, MGE), Instituto Superior de Agronomia, Universidade de Lisboa, Lisbon, Portugal
| | - Alexis Ndayiragije
- International Rice Research Institute, Maputo, Mozambique
- International Rice Research Institute, Laguna, Philippines
| | - Fernando Cebola Lidon
- Unidade de Geobiociências, Geoengenharias e Geotecnologias, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, Caparica, Portugal
| | - B. P. Mallikarjuna Swamy
- International Rice Research Institute, Maputo, Mozambique
- International Rice Research Institute, Laguna, Philippines
| | - José Cochicho Ramalho
- PlantStress&Biodiversity Lab, Forest Research Center (IM, JCR, AIRB) and Linking, Landscape, Environment, Agriculture and Food (PBS, MGE), Instituto Superior de Agronomia, Universidade de Lisboa, Lisbon, Portugal
- Unidade de Geobiociências, Geoengenharias e Geotecnologias, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, Caparica, Portugal
| | - Ana I. Ribeiro-Barros
- PlantStress&Biodiversity Lab, Forest Research Center (IM, JCR, AIRB) and Linking, Landscape, Environment, Agriculture and Food (PBS, MGE), Instituto Superior de Agronomia, Universidade de Lisboa, Lisbon, Portugal
- Unidade de Geobiociências, Geoengenharias e Geotecnologias, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, Caparica, Portugal
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116
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Fan P, Wang P, Lou YR, Leong BJ, Moore BM, Schenck CA, Combs R, Cao P, Brandizzi F, Shiu SH, Last RL. Evolution of a plant gene cluster in Solanaceae and emergence of metabolic diversity. eLife 2020; 9:e56717. [PMID: 32613943 PMCID: PMC7386920 DOI: 10.7554/elife.56717] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2020] [Accepted: 07/01/2020] [Indexed: 12/15/2022] Open
Abstract
Plants produce phylogenetically and spatially restricted, as well as structurally diverse specialized metabolites via multistep metabolic pathways. Hallmarks of specialized metabolic evolution include enzymatic promiscuity and recruitment of primary metabolic enzymes and examples of genomic clustering of pathway genes. Solanaceae glandular trichomes produce defensive acylsugars, with sidechains that vary in length across the family. We describe a tomato gene cluster on chromosome 7 involved in medium chain acylsugar accumulation due to trichome specific acyl-CoA synthetase and enoyl-CoA hydratase genes. This cluster co-localizes with a tomato steroidal alkaloid gene cluster and is syntenic to a chromosome 12 region containing another acylsugar pathway gene. We reconstructed the evolutionary events leading to this gene cluster and found that its phylogenetic distribution correlates with medium chain acylsugar accumulation across the Solanaceae. This work reveals insights into the dynamics behind gene cluster evolution and cell-type specific metabolite diversity.
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Affiliation(s)
- Pengxiang Fan
- Department of Biochemistry and Molecular Biology, Michigan State UniversityEast LansingUnited States
| | - Peipei Wang
- Department of Plant Biology, Michigan State UniversityEast LansingUnited States
| | - Yann-Ru Lou
- Department of Biochemistry and Molecular Biology, Michigan State UniversityEast LansingUnited States
| | - Bryan J Leong
- Department of Plant Biology, Michigan State UniversityEast LansingUnited States
| | - Bethany M Moore
- Department of Plant Biology, Michigan State UniversityEast LansingUnited States
- University of WisconsinMadisonUnited States
| | - Craig A Schenck
- Department of Biochemistry and Molecular Biology, Michigan State UniversityEast LansingUnited States
| | - Rachel Combs
- Division of Biological Sciences, University of MissouriColumbusUnited States
| | - Pengfei Cao
- Department of Plant Biology, Michigan State UniversityEast LansingUnited States
- MSU-DOE Plant Research Laboratory, Michigan State UniversityEast LansingUnited States
| | - Federica Brandizzi
- Department of Plant Biology, Michigan State UniversityEast LansingUnited States
- MSU-DOE Plant Research Laboratory, Michigan State UniversityEast LansingUnited States
| | - Shin-Han Shiu
- Department of Plant Biology, Michigan State UniversityEast LansingUnited States
- Department of Computational Mathematics, Science, and Engineering, Michigan State UniversityEast LansingUnited States
| | - Robert L Last
- Department of Biochemistry and Molecular Biology, Michigan State UniversityEast LansingUnited States
- Department of Plant Biology, Michigan State UniversityEast LansingUnited States
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117
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Bagnaresi P, Cattivelli L. Ab initio GO-based mining for non-tandem-duplicated functional clusters in three model plant diploid genomes. PLoS One 2020; 15:e0234782. [PMID: 32559249 PMCID: PMC7304597 DOI: 10.1371/journal.pone.0234782] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Accepted: 06/02/2020] [Indexed: 11/20/2022] Open
Abstract
A functional Non-Tandem Duplicated Cluster (FNTDC) is a group of non-tandem-duplicated genes that are located closer than expected by mere chance and have a role in the same biological function. The identification of secondary-compounds–related FNTDC has gained increased interest in recent years, but little ab-initio attempts aiming to the identification of FNTDCs covering all biological functions, including primary metabolism compounds, have been carried out. We report an extensive FNTDC dataset accompanied by a detailed assessment on parameters used for genome scanning and their impact on FNTDC detection. We propose 70% identity and 70% alignment coverage as intermediate settings to exclude tandem duplicated genes and a dynamic scanning window of 24 genes. These settings were applied to rice, arabidopsis and grapevine genomes to call for FNTDCs. Besides the best-known secondary metabolism clusters, we identified many FNTDCs associated to primary metabolism ranging from macromolecules synthesis/editing, TOR signalling, ubiquitination, proton and electron transfer complexes. Using the intermediate FNTDC setting parameters (at P-value 1e-6), 130, 70 and 140 candidate FNTDCs were called in rice, arabidopsis and grapevine, respectively, and 20 to 30% of GO tags associated to called FNTDC were common among the 3 genomes. The datasets developed along with this work provide a rich framework for pinpointing candidate FNTDCs reflecting all GO-BP tags covering both primary and secondary metabolism with large macromolecular complexes/metabolons as the most represented FNTDCs. Noteworthy, several FNTDCs are tagged with GOs referring to organelle-targeted multi-enzyme complex, a finding that suggest the migration of endosymbiont gene chunks towards nuclei could be at the basis of these class of candidate FNTDCs. Most FNTDC appear to have evolved prior of genome duplication events. More than one-third of genes interspersed/adjacent to called FNTDCs lacked any functional annotation; however, their co-localization may provide hints towards a candidate biological role.
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Affiliation(s)
- Paolo Bagnaresi
- CREA Research Centre for Genomics and Bioinformatics, Fiorenzuola d’Arda, Italy
- * E-mail:
| | - Luigi Cattivelli
- CREA Research Centre for Genomics and Bioinformatics, Fiorenzuola d’Arda, Italy
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118
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Xu Z, Pu X, Gao R, Demurtas OC, Fleck SJ, Richter M, He C, Ji A, Sun W, Kong J, Hu K, Ren F, Song J, Wang Z, Gao T, Xiong C, Yu H, Xin T, Albert VA, Giuliano G, Chen S, Song J. Tandem gene duplications drive divergent evolution of caffeine and crocin biosynthetic pathways in plants. BMC Biol 2020; 18:63. [PMID: 32552824 PMCID: PMC7302004 DOI: 10.1186/s12915-020-00795-3] [Citation(s) in RCA: 74] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Accepted: 05/18/2020] [Indexed: 12/11/2022] Open
Abstract
Background Plants have evolved a panoply of specialized metabolites that increase their environmental fitness. Two examples are caffeine, a purine psychotropic alkaloid, and crocins, a group of glycosylated apocarotenoid pigments. Both classes of compounds are found in a handful of distantly related plant genera (Coffea, Camellia, Paullinia, and Ilex for caffeine; Crocus, Buddleja, and Gardenia for crocins) wherein they presumably evolved through convergent evolution. The closely related Coffea and Gardenia genera belong to the Rubiaceae family and synthesize, respectively, caffeine and crocins in their fruits. Results Here, we report a chromosomal-level genome assembly of Gardenia jasminoides, a crocin-producing species, obtained using Oxford Nanopore sequencing and Hi-C technology. Through genomic and functional assays, we completely deciphered for the first time in any plant the dedicated pathway of crocin biosynthesis. Through comparative analyses with Coffea canephora and other eudicot genomes, we show that Coffea caffeine synthases and the first dedicated gene in the Gardenia crocin pathway, GjCCD4a, evolved through recent tandem gene duplications in the two different genera, respectively. In contrast, genes encoding later steps of the Gardenia crocin pathway, ALDH and UGT, evolved through more ancient gene duplications and were presumably recruited into the crocin biosynthetic pathway only after the evolution of the GjCCD4a gene. Conclusions This study shows duplication-based divergent evolution within the coffee family (Rubiaceae) of two characteristic secondary metabolic pathways, caffeine and crocin biosynthesis, from a common ancestor that possessed neither complete pathway. These findings provide significant insights on the role of tandem duplications in the evolution of plant specialized metabolism.
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Affiliation(s)
- Zhichao Xu
- Key Lab of Chinese Medicine Resources Conservation, State Administration of Traditional Chinese Medicine of the People's Republic of China, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100193, China.,Engineering Research Center of Chinese Medicine Resource, Ministry of Education, Beijing, 100193, China
| | - Xiangdong Pu
- Key Lab of Chinese Medicine Resources Conservation, State Administration of Traditional Chinese Medicine of the People's Republic of China, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100193, China
| | - Ranran Gao
- Key Lab of Chinese Medicine Resources Conservation, State Administration of Traditional Chinese Medicine of the People's Republic of China, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100193, China
| | - Olivia Costantina Demurtas
- Italian National Agency for New Technologies, Energy and Sustainable Economic Development (ENEA), Casaccia Res. Ctr, 00123, Rome, Italy
| | - Steven J Fleck
- Department of Biological Sciences, University at Buffalo, Buffalo, NY, 14260, USA
| | - Michaela Richter
- Department of Biological Sciences, University at Buffalo, Buffalo, NY, 14260, USA
| | - Chunnian He
- Key Lab of Chinese Medicine Resources Conservation, State Administration of Traditional Chinese Medicine of the People's Republic of China, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100193, China.,Engineering Research Center of Chinese Medicine Resource, Ministry of Education, Beijing, 100193, China
| | - Aijia Ji
- Key Lab of Chinese Medicine Resources Conservation, State Administration of Traditional Chinese Medicine of the People's Republic of China, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100193, China
| | - Wei Sun
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Jianqiang Kong
- Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050, China
| | - Kaizhi Hu
- Chongqing Institute of Medicinal Plant Cultivation, Chongqing, 408435, China
| | - Fengming Ren
- Key Lab of Chinese Medicine Resources Conservation, State Administration of Traditional Chinese Medicine of the People's Republic of China, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100193, China.,Chongqing Institute of Medicinal Plant Cultivation, Chongqing, 408435, China
| | - Jiejie Song
- College of Life Sciences, Qingdao Agricultural University, Qingdao, 266109, China
| | - Zhe Wang
- Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050, China
| | - Ting Gao
- College of Life Sciences, Qingdao Agricultural University, Qingdao, 266109, China
| | - Chao Xiong
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Haoying Yu
- Key Lab of Chinese Medicine Resources Conservation, State Administration of Traditional Chinese Medicine of the People's Republic of China, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100193, China
| | - Tianyi Xin
- Key Lab of Chinese Medicine Resources Conservation, State Administration of Traditional Chinese Medicine of the People's Republic of China, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100193, China
| | - Victor A Albert
- Department of Biological Sciences, University at Buffalo, Buffalo, NY, 14260, USA.,School of Biological Sciences, Nanyang Technological University, Singapore, 637551, Singapore
| | - Giovanni Giuliano
- Italian National Agency for New Technologies, Energy and Sustainable Economic Development (ENEA), Casaccia Res. Ctr, 00123, Rome, Italy.
| | - Shilin Chen
- Engineering Research Center of Chinese Medicine Resource, Ministry of Education, Beijing, 100193, China. .,Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China.
| | - Jingyuan Song
- Key Lab of Chinese Medicine Resources Conservation, State Administration of Traditional Chinese Medicine of the People's Republic of China, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100193, China. .,Engineering Research Center of Chinese Medicine Resource, Ministry of Education, Beijing, 100193, China. .,Yunnan Branch, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Jinghong, 666100, China.
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119
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Active and repressed biosynthetic gene clusters have spatially distinct chromosome states. Proc Natl Acad Sci U S A 2020; 117:13800-13809. [PMID: 32493747 DOI: 10.1073/pnas.1920474117] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
While colocalization within a bacterial operon enables coexpression of the constituent genes, the mechanistic logic of clustering of nonhomologous monocistronic genes in eukaryotes is not immediately obvious. Biosynthetic gene clusters that encode pathways for specialized metabolites are an exception to the classical eukaryote rule of random gene location and provide paradigmatic exemplars with which to understand eukaryotic cluster dynamics and regulation. Here, using 3C, Hi-C, and Capture Hi-C (CHi-C) organ-specific chromosome conformation capture techniques along with high-resolution microscopy, we investigate how chromosome topology relates to transcriptional activity of clustered biosynthetic pathway genes in Arabidopsis thaliana Our analyses reveal that biosynthetic gene clusters are embedded in local hot spots of 3D contacts that segregate cluster regions from the surrounding chromosome environment. The spatial conformation of these cluster-associated domains differs between transcriptionally active and silenced clusters. We further show that silenced clusters associate with heterochromatic chromosomal domains toward the periphery of the nucleus, while transcriptionally active clusters relocate away from the nuclear periphery. Examination of chromosome structure at unrelated clusters in maize, rice, and tomato indicates that integration of clustered pathway genes into distinct topological domains is a common feature in plant genomes. Our results shed light on the potential mechanisms that constrain coexpression within clusters of nonhomologous eukaryotic genes and suggest that gene clustering in the one-dimensional chromosome is accompanied by compartmentalization of the 3D chromosome.
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Lichman BR, Godden GT, Buell CR. Gene and genome duplications in the evolution of chemodiversity: perspectives from studies of Lamiaceae. CURRENT OPINION IN PLANT BIOLOGY 2020; 55:74-83. [PMID: 32344371 DOI: 10.1016/j.pbi.2020.03.005] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2019] [Revised: 02/19/2020] [Accepted: 03/04/2020] [Indexed: 05/28/2023]
Abstract
Plants are reservoirs of extreme chemical diversity, yet biosynthetic pathways remain underexplored in the majority of taxa. Access to improved, inexpensive genomic and computational technologies has recently enhanced our understanding of plant specialized metabolism at the biochemical and evolutionary levels including the elucidation of pathways leading to key metabolites. Furthermore, these approaches have provided insights into the mechanisms of chemical evolution, including neofunctionalization and subfunctionalization, structural variation, and modulation of gene expression. The broader utilization of genomic tools across the plant tree of life, and an expansion of genomic resources from multiple accessions within species or populations, will improve our overall understanding of chemodiversity. These data and knowledge will also lead to greater insight into the selective pressures contributing to and maintaining this diversity, which in turn will enable the development of more accurate predictive models of specialized metabolism in plants.
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Affiliation(s)
- Benjamin R Lichman
- Centre for Novel Agricultural Products, Department of Biology, University of York, York YO10 5DD, UK
| | - Grant T Godden
- Florida Museum of Natural History, University of Florida, Gainesville, FL 32611, USA
| | - Carol Robin Buell
- Department of Plant Biology, Michigan State University, 612 Wilson Road, East Lansing, MI 48824, USA; Plant Resilience Institute, Michigan State University, 612 Wilson Road, East Lansing, MI 48824, USA; MSU AgBioResearch, Michigan State University, 446 West Circle Drive, East Lansing, MI 48824, USA.
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121
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Yuan L. Clustered ERF Transcription Factors: Not All Created Equal. PLANT & CELL PHYSIOLOGY 2020; 61:1025-1027. [PMID: 32392307 PMCID: PMC7295393 DOI: 10.1093/pcp/pcaa067] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Accepted: 04/25/2020] [Indexed: 05/18/2023]
Affiliation(s)
- Ling Yuan
- Department of Plant and Soil Sciences, Kentucky Tobacco Research and Development Center, University of Kentucky, Lexington, KY 40546, USA
- South China Botanical Garden, Guangzhou, China
- Corresponding author: E-mail,
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Mutwil M. Computational approaches to unravel the pathways and evolution of specialized metabolism. CURRENT OPINION IN PLANT BIOLOGY 2020; 55:38-46. [PMID: 32200228 DOI: 10.1016/j.pbi.2020.01.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Revised: 01/19/2020] [Accepted: 01/31/2020] [Indexed: 05/13/2023]
Abstract
Specialized metabolites serve as a chemical arsenal that protects plants from abiotic stress, pathogens, and herbivores, and they are an essential component of our nutrition and medicine. Despite their importance, we are still at the beginning of unravelling biosynthetic pathways that produce these compounds, which is needed to produce more resilient and nutritious crops, expand our inventory of useful biomolecules, and give valuable insights into plant evolution. This review focuses on the evolution of specialized metabolism in the plant kingdom and the state-of-the-art approaches used to identify the biosynthetic pathways of these useful compounds.
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Affiliation(s)
- Marek Mutwil
- School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, Singapore, 637551, Singapore.
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Ribeiro B, Lacchini E, Bicalho KU, Mertens J, Arendt P, Vanden Bossche R, Calegario G, Gryffroy L, Ceulemans E, Buitink J, Goossens A, Pollier J. A Seed-Specific Regulator of Triterpene Saponin Biosynthesis in Medicago truncatula. THE PLANT CELL 2020; 32:2020-2042. [PMID: 32303662 PMCID: PMC7268793 DOI: 10.1105/tpc.19.00609] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Revised: 03/27/2020] [Accepted: 04/10/2020] [Indexed: 05/06/2023]
Abstract
Plants produce a vast array of defense compounds to protect themselves from pathogen attack or herbivore predation. Saponins are a specific class of defense compounds comprising bioactive glycosides with a steroidal or triterpenoid aglycone backbone. The model legume Medicago truncatula synthesizes two types of saponins, hemolytic saponins and nonhemolytic soyasaponins, which accumulate as specific blends in different plant organs. Here, we report the identification of the seed-specific transcription factor TRITERPENE SAPONIN ACTIVATION REGULATOR3 (TSAR3), which controls hemolytic saponin biosynthesis in developing M. truncatula seeds. Analysis of genes that are coexpressed with TSAR3 in transcriptome data sets from developing M. truncatula seeds led to the identification of CYP88A13, a cytochrome P450 that catalyzes the C-16α hydroxylation of medicagenic acid toward zanhic acid, the final oxidation step of the hemolytic saponin biosynthesis branch in M. truncatula In addition, two uridine diphosphate glycosyltransferases, UGT73F18 and UGT73F19, which glucosylate hemolytic sapogenins at the C-3 position, were identified. The genes encoding the identified biosynthetic enzymes are present in clusters of duplicated genes in the M. truncatula genome. This appears to be a common theme among saponin biosynthesis genes, especially glycosyltransferases, and may be the driving force of the metabolic evolution of saponins.
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Affiliation(s)
- Bianca Ribeiro
- Ghent University, Department of Plant Biotechnology and Bioinformatics, 9052 Ghent, Belgium
- VIB Center for Plant Systems Biology, 9052 Ghent, Belgium
| | - Elia Lacchini
- Ghent University, Department of Plant Biotechnology and Bioinformatics, 9052 Ghent, Belgium
- VIB Center for Plant Systems Biology, 9052 Ghent, Belgium
| | - Keylla U Bicalho
- Ghent University, Department of Plant Biotechnology and Bioinformatics, 9052 Ghent, Belgium
- VIB Center for Plant Systems Biology, 9052 Ghent, Belgium
- Department of Organic Chemistry, Institute of Chemistry, São Paulo State University (UNESP), Araraquara, São Paulo 14800-900, Brazil
| | - Jan Mertens
- Ghent University, Department of Plant Biotechnology and Bioinformatics, 9052 Ghent, Belgium
- VIB Center for Plant Systems Biology, 9052 Ghent, Belgium
| | - Philipp Arendt
- Ghent University, Department of Plant Biotechnology and Bioinformatics, 9052 Ghent, Belgium
- VIB Center for Plant Systems Biology, 9052 Ghent, Belgium
| | - Robin Vanden Bossche
- Ghent University, Department of Plant Biotechnology and Bioinformatics, 9052 Ghent, Belgium
- VIB Center for Plant Systems Biology, 9052 Ghent, Belgium
| | - Gabriela Calegario
- Ghent University, Department of Plant Biotechnology and Bioinformatics, 9052 Ghent, Belgium
- VIB Center for Plant Systems Biology, 9052 Ghent, Belgium
| | - Lore Gryffroy
- Ghent University, Department of Plant Biotechnology and Bioinformatics, 9052 Ghent, Belgium
- VIB Center for Plant Systems Biology, 9052 Ghent, Belgium
| | - Evi Ceulemans
- Ghent University, Department of Plant Biotechnology and Bioinformatics, 9052 Ghent, Belgium
- VIB Center for Plant Systems Biology, 9052 Ghent, Belgium
| | - Julia Buitink
- Institut de Recherche en Horticulture et Semences-Unités Mixtes de Recherche, Université d'Angers, INRAE, Institut Agro, SFR 4207 QuaSaV, 49071 Beaucouzé, France
| | - Alain Goossens
- Ghent University, Department of Plant Biotechnology and Bioinformatics, 9052 Ghent, Belgium
- VIB Center for Plant Systems Biology, 9052 Ghent, Belgium
| | - Jacob Pollier
- Ghent University, Department of Plant Biotechnology and Bioinformatics, 9052 Ghent, Belgium
- VIB Center for Plant Systems Biology, 9052 Ghent, Belgium
- VIB Metabolomics Core, 9052 Ghent, Belgium
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Tiedge K, Muchlinski A, Zerbe P. Genomics-enabled analysis of specialized metabolism in bioenergy crops: current progress and challenges. Synth Biol (Oxf) 2020; 5:ysaa005. [PMID: 32995549 PMCID: PMC7445794 DOI: 10.1093/synbio/ysaa005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Revised: 05/03/2020] [Accepted: 05/25/2020] [Indexed: 11/25/2022] Open
Abstract
Plants produce a staggering diversity of specialized small molecule metabolites that play vital roles in mediating environmental interactions and stress adaptation. This chemical diversity derives from dynamic biosynthetic pathway networks that are often species-specific and operate under tight spatiotemporal and environmental control. A growing divide between demand and environmental challenges in food and bioenergy crop production has intensified research on these complex metabolite networks and their contribution to crop fitness. High-throughput omics technologies provide access to ever-increasing data resources for investigating plant metabolism. However, the efficiency of using such system-wide data to decode the gene and enzyme functions controlling specialized metabolism has remained limited; due largely to the recalcitrance of many plants to genetic approaches and the lack of 'user-friendly' biochemical tools for studying the diverse enzyme classes involved in specialized metabolism. With emphasis on terpenoid metabolism in the bioenergy crop switchgrass as an example, this review aims to illustrate current advances and challenges in the application of DNA synthesis and synthetic biology tools for accelerating the functional discovery of genes, enzymes and pathways in plant specialized metabolism. These technologies have accelerated knowledge development on the biosynthesis and physiological roles of diverse metabolite networks across many ecologically and economically important plant species and can provide resources for application to precision breeding and natural product metabolic engineering.
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Affiliation(s)
- Kira Tiedge
- Department of Plant Biology, University of California-Davis, Davis, CA 95616, USA
| | - Andrew Muchlinski
- Department of Plant Biology, University of California-Davis, Davis, CA 95616, USA
| | - Philipp Zerbe
- Department of Plant Biology, University of California-Davis, Davis, CA 95616, USA
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Gutiérrez-Albanchez E, Gradillas A, García A, García-Villaraco A, Gutierrez-Mañero FJ, Ramos-Solano B. Elicitation with Bacillus QV15 reveals a pivotal role of F3H on flavonoid metabolism improving adaptation to biotic stress in blackberry. PLoS One 2020; 15:e0232626. [PMID: 32374762 PMCID: PMC7202615 DOI: 10.1371/journal.pone.0232626] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Accepted: 04/17/2020] [Indexed: 02/06/2023] Open
Abstract
The aim of this study is to determine the involvement of the flavonol-anthocyanin pathway on plant adaptation to biotic stress using the B.amyloliquefaciens QV15 to trigger blackberry metabolism and identify target genes to improve plant fitness and fruit quality. To achieve this goal, field-grown blackberries were root-inoculated with QV15 along its growth cycle. At fruiting, a transcriptomic analysis by RNA-Seq was performed on leaves and fruits of treated and non-treated field-grown blackberries after a sustained mildew outbreak; expression of the regulating and core genes of the Flavonol-Anthocyanin pathway were analysed by qPCR and metabolomic profiles by UHPLC/ESI-qTOF-MS; plant protection was found to be up to 88%. Overexpression of step-controlling genes in leaves and fruits, associated to lower concentration of flavonols and anthocyanins in QV15-treated plants, together with a higher protection suggest a phytoanticipin role for flavonols in blackberry; kempferol-3-O-rutinoside concentration was strikingly high. Overexpression of RuF3H (Flavonol-3-hidroxylase) suggests a pivotal role in the coordination of committing steps in this pathway, controlling carbon flux towards the different sinks. Furthermore, this C demand is supported by an activation of the photosynthetic machinery, and boosted by a coordinated control of ROS into a sub-lethal range, and associated to enhanced protection to biotic stress.
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Affiliation(s)
- Enrique Gutiérrez-Albanchez
- Department of Pharmaceutical and Health Sciences, Facultad de Farmacia, Universidad San Pablo-CEU Universities, Boadilla del Monte, Madrid, Spain
- * E-mail: (BRS); (EGA)
| | - Ana Gradillas
- Department of Chemistry and Biochemistry, Facultad de Farmacia, Universidad San Pablo-CEU Universities, Boadilla del Monte, Madrid, Spain
| | - Antonia García
- Department of Chemistry and Biochemistry, Facultad de Farmacia, Universidad San Pablo-CEU Universities, Boadilla del Monte, Madrid, Spain
| | - Ana García-Villaraco
- Department of Pharmaceutical and Health Sciences, Facultad de Farmacia, Universidad San Pablo-CEU Universities, Boadilla del Monte, Madrid, Spain
| | - F. Javier Gutierrez-Mañero
- Department of Pharmaceutical and Health Sciences, Facultad de Farmacia, Universidad San Pablo-CEU Universities, Boadilla del Monte, Madrid, Spain
| | - Beatriz Ramos-Solano
- Department of Pharmaceutical and Health Sciences, Facultad de Farmacia, Universidad San Pablo-CEU Universities, Boadilla del Monte, Madrid, Spain
- * E-mail: (BRS); (EGA)
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126
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Lichman BR, Godden GT, Hamilton JP, Palmer L, Kamileen MO, Zhao D, Vaillancourt B, Wood JC, Sun M, Kinser TJ, Henry LK, Rodriguez-Lopez C, Dudareva N, Soltis DE, Soltis PS, Buell CR, O’Connor SE. The evolutionary origins of the cat attractant nepetalactone in catnip. SCIENCE ADVANCES 2020; 6:eaba0721. [PMID: 32426505 PMCID: PMC7220310 DOI: 10.1126/sciadv.aba0721] [Citation(s) in RCA: 62] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Accepted: 03/02/2020] [Indexed: 05/07/2023]
Abstract
Catnip or catmint (Nepeta spp.) is a flowering plant in the mint family (Lamiaceae) famed for its ability to attract cats. This phenomenon is caused by the compound nepetalactone, a volatile iridoid that also repels insects. Iridoids are present in many Lamiaceae species but were lost in the ancestor of the Nepetoideae, the subfamily containing Nepeta. Using comparative genomics, ancestral sequence reconstructions, and phylogenetic analyses, we probed the re-emergence of iridoid biosynthesis in Nepeta. The results of these investigations revealed mechanisms for the loss and subsequent re-evolution of iridoid biosynthesis in the Nepeta lineage. We present evidence for a chronology of events that led to the formation of nepetalactone biosynthesis and its metabolic gene cluster. This study provides insights into the interplay between enzyme and genome evolution in the origins, loss, and re-emergence of plant chemical diversity.
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Affiliation(s)
- Benjamin R. Lichman
- Centre for Novel Agricultural Products, Department of Biology, University of York, York YO10 5DD, UK
- Corresponding author. (B.R.L.); (C.R.B.); (S.E.O.)
| | - Grant T. Godden
- Florida Museum of Natural History, University of Florida, Gainesville, FL 32611, USA
| | - John P. Hamilton
- Department of Plant Biology, Michigan State University, 612 Wilson Road, East Lansing, MI 48824, USA
| | - Lira Palmer
- Department of Natural Product Biosynthesis, Max Planck Institute for Chemical Ecology, D-07745 Jena, Germany
| | - Mohamed O. Kamileen
- Department of Natural Product Biosynthesis, Max Planck Institute for Chemical Ecology, D-07745 Jena, Germany
| | - Dongyan Zhao
- Department of Plant Biology, Michigan State University, 612 Wilson Road, East Lansing, MI 48824, USA
| | - Brieanne Vaillancourt
- Department of Plant Biology, Michigan State University, 612 Wilson Road, East Lansing, MI 48824, USA
| | - Joshua C. Wood
- Department of Plant Biology, Michigan State University, 612 Wilson Road, East Lansing, MI 48824, USA
| | - Miao Sun
- Florida Museum of Natural History, University of Florida, Gainesville, FL 32611, USA
| | - Taliesin J. Kinser
- Florida Museum of Natural History, University of Florida, Gainesville, FL 32611, USA
- Department of Biology, University of Florida, Gainesville, FL 32611, USA
| | - Laura K. Henry
- Department of Biochemistry, Purdue University, West Lafayette, IN 47907, USA
| | - Carlos Rodriguez-Lopez
- Department of Natural Product Biosynthesis, Max Planck Institute for Chemical Ecology, D-07745 Jena, Germany
| | - Natalia Dudareva
- Department of Biochemistry, Purdue University, West Lafayette, IN 47907, USA
- Department of Horticulture and Landscape Architecture, Purdue University, West Lafayette, IN 47907, USA
- Purdue Center for Plant Biology, Purdue University, West Lafayette, IN 47907, USA
| | - Douglas E. Soltis
- Florida Museum of Natural History, University of Florida, Gainesville, FL 32611, USA
- Department of Biology, University of Florida, Gainesville, FL 32611, USA
| | - Pamela S. Soltis
- Florida Museum of Natural History, University of Florida, Gainesville, FL 32611, USA
| | - C. Robin Buell
- Department of Plant Biology, Michigan State University, 612 Wilson Road, East Lansing, MI 48824, USA
- Plant Resilience Institute, Michigan State University, 612 Wilson Road, East Lansing, MI 48824, USA
- MSU AgBioResearch, Michigan State University, 446 West Circle Drive, East Lansing, MI 48824, USA
- Corresponding author. (B.R.L.); (C.R.B.); (S.E.O.)
| | - Sarah E. O’Connor
- Department of Natural Product Biosynthesis, Max Planck Institute for Chemical Ecology, D-07745 Jena, Germany
- Corresponding author. (B.R.L.); (C.R.B.); (S.E.O.)
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127
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Nagegowda DA, Gupta P. Advances in biosynthesis, regulation, and metabolic engineering of plant specialized terpenoids. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2020; 294:110457. [PMID: 32234216 DOI: 10.1016/j.plantsci.2020.110457] [Citation(s) in RCA: 89] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Revised: 02/18/2020] [Accepted: 02/22/2020] [Indexed: 05/28/2023]
Abstract
Plant specialized terpenoids are natural products that have no obvious role in growth and development, but play many important functional roles to improve the plant's overall fitness. Besides, plant specialized terpenoids have immense value to humans due to their applications in fragrance, flavor, cosmetic, and biofuel industries. Understanding the fundamental aspects involved in the biosynthesis and regulation of these high-value molecules in plants not only paves the path to enhance plant traits, but also facilitates homologous or heterologous engineering for overproduction of target molecules of importance. Recent developments in functional genomics and high-throughput analytical techniques have led to unraveling of several novel aspects involved in the biosynthesis and regulation of plant specialized terpenoids. The knowledge thus derived has been successfully utilized to produce target specialized terpenoids of plant origin in homologous or heterologous host systems by metabolic engineering and synthetic biology approaches. Here, we provide an overview and highlights on advances related to the biosynthetic steps, regulation, and metabolic engineering of plant specialized terpenoids.
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Affiliation(s)
- Dinesh A Nagegowda
- Molecular Plant Biology and Biotechnology Lab, CSIR-Central Institute of Medicinal and Aromatic Plants, Research Centre, Bengaluru, 560065, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201 002, India.
| | - Priyanka Gupta
- Molecular Plant Biology and Biotechnology Lab, CSIR-Central Institute of Medicinal and Aromatic Plants, Research Centre, Bengaluru, 560065, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201 002, India
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128
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Blin K, Kim HU, Medema MH, Weber T. Recent development of antiSMASH and other computational approaches to mine secondary metabolite biosynthetic gene clusters. Brief Bioinform 2020; 20:1103-1113. [PMID: 29112695 PMCID: PMC6781578 DOI: 10.1093/bib/bbx146] [Citation(s) in RCA: 98] [Impact Index Per Article: 24.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Revised: 10/10/2017] [Indexed: 01/06/2023] Open
Abstract
Many drugs are derived from small molecules produced by microorganisms and plants, so-called natural products. Natural products have diverse chemical structures, but the biosynthetic pathways producing those compounds are often organized as biosynthetic gene clusters (BGCs) and follow a highly conserved biosynthetic logic. This allows for the identification of core biosynthetic enzymes using genome mining strategies that are based on the sequence similarity of the involved enzymes/genes. However, mining for a variety of BGCs quickly approaches a complexity level where manual analyses are no longer possible and require the use of automated genome mining pipelines, such as the antiSMASH software. In this review, we discuss the principles underlying the predictions of antiSMASH and other tools and provide practical advice for their application. Furthermore, we discuss important caveats such as rule-based BGC detection, sequence and annotation quality and cluster boundary prediction, which all have to be considered while planning for, performing and analyzing the results of genome mining studies.
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Affiliation(s)
| | | | | | - Tilmann Weber
- Corresponding author: Tilmann Weber, The Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark. Tel.: +45 24 89 61 32; E-mail:
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129
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Li H, Jiang S, Li C, Liu L, Lin Z, He H, Deng XW, Zhang Z, Wang X. The hybrid protein interactome contributes to rice heterosis as epistatic effects. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2020; 102:116-128. [PMID: 31736145 DOI: 10.1111/tpj.14616] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2019] [Revised: 10/27/2019] [Accepted: 11/01/2019] [Indexed: 05/15/2023]
Abstract
Heterosis is the phenomenon in which hybrid progeny exhibits superior traits in comparison with those of their parents. Genomic variations between the two parental genomes may generate epistasis interactions, which is one of the genetic hypotheses explaining heterosis. We postulate that protein-protein interactions specific to F1 hybrids (F1 -specific PPIs) may occur when two parental genomes combine, as the proteome of each parent may supply novel interacting partners. To test our assumption, an inter-subspecies hybrid interactome was simulated by in silico PPI prediction between rice japonica (cultivar Nipponbare) and indica (cultivar 9311). Four-thousand, six-hundred and twelve F1 -specific PPIs accounting for 20.5% of total PPIs in the hybrid interactome were found. Genes participating in F1 -specific PPIs tend to encode metabolic enzymes and are generally localized in genomic regions harboring metabolic gene clusters. To test the genetic effect of F1 -specific PPIs in heterosis, genomic selection analysis was performed for trait prediction with additive, dominant and epistatic effects separately considered in the model. We found that the removal of single nucleotide polymorphisms associated with F1 -specific PPIs reduced prediction accuracy when epistatic effects were considered in the model, but no significant changes were observed when additive or dominant effects were considered. In summary, genomic divergence widely dispersed between japonica and indica rice may generate F1 -specific PPIs, part of which may accumulatively contribute to heterosis according to our computational analysis. These candidate F1 -specific PPIs, especially for those involved in metabolic biosynthesis pathways, are worthy of experimental validation when large-scale protein interactome datasets are generated in hybrid rice in the future.
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Affiliation(s)
- Hong Li
- National Maize Improvement Center, College of Agronomy and Biotechnology, China Agricultural University, Beijing, 100193, China
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
- Key Laboratory of Tropical Biological Resources of Ministry of Education, School of Life and Pharmaceutical Sciences, Hainan University, Haikou, 570228, China
| | - Shuqin Jiang
- National Maize Improvement Center, College of Agronomy and Biotechnology, China Agricultural University, Beijing, 100193, China
| | - Chen Li
- Rice Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640, China
| | - Lei Liu
- Beijing Key Laboratory of Plant Resources Research and Development, School of Sciences, Beijing Technology and Business University, Beijing, 100048, China
| | - Zechuan Lin
- State Key Laboratory of Protein and Plant Gene Research, Peking-Tsinghua Center for Life Sciences, School of Advanced Agriculture Sciences and School of Life Sciences, Peking University, Beijing, China
| | - Hang He
- State Key Laboratory of Protein and Plant Gene Research, Peking-Tsinghua Center for Life Sciences, School of Advanced Agriculture Sciences and School of Life Sciences, Peking University, Beijing, China
| | - Xing-Wang Deng
- State Key Laboratory of Protein and Plant Gene Research, Peking-Tsinghua Center for Life Sciences, School of Advanced Agriculture Sciences and School of Life Sciences, Peking University, Beijing, China
| | - Ziding Zhang
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Xiangfeng Wang
- National Maize Improvement Center, College of Agronomy and Biotechnology, China Agricultural University, Beijing, 100193, China
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130
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Pontvianne F, Liu C. Chromatin domains in space and their functional implications. CURRENT OPINION IN PLANT BIOLOGY 2020; 54:1-10. [PMID: 31881292 DOI: 10.1016/j.pbi.2019.11.005] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2019] [Revised: 11/12/2019] [Accepted: 11/26/2019] [Indexed: 05/19/2023]
Abstract
Genome organization displays functional compartmentalization. Many factors, including epigenetic modifications, transcription factors, chromatin remodelers, and RNAs, shape chromatin domains and the three-dimensional genome organization. Various types of chromatin domains with distinct epigenetic and spatial features exhibit different transcriptional activities. As part of the efforts to better understand plant functional genomics, over the past a few years, spatial distribution patterns of plant chromatin domains have been brought to light. In this review, we discuss chromatin domains associated with the nuclear periphery and the nucleolus, as well as chromatin domains staying in proximity and showing physical interactions. The functional implication of these domains is discussed, with a particular focus on the transcriptional regulation and replication timing. Finally, from a biophysical point of view, we discuss potential roles of liquid-liquid phase separation in plant nuclei in the genesis and maintenance of spatial chromatin domains.
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Affiliation(s)
- Frédéric Pontvianne
- CNRS, Laboratoire Génome et Développement des Plantes (LGDP), Université de Perpignan Via Domitia, LGDP, UMR 5096, Perpignan 66860, France; UPVD, Laboratoire Génome et Développement des Plantes (LGDP), Université de Perpignan Via Domitia, LGDP, UMR 5096, Perpignan 66860, France.
| | - Chang Liu
- Center for Plant Molecular Biology (ZMBP), University of Tübingen, Auf der Morgenstelle 32, Tübingen 72076, Germany.
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131
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Singh SK, Patra B, Paul P, Liu Y, Pattanaik S, Yuan L. Revisiting the ORCA gene cluster that regulates terpenoid indole alkaloid biosynthesis in Catharanthus roseus. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2020; 293:110408. [PMID: 32081258 DOI: 10.1016/j.plantsci.2020.110408] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 01/03/2020] [Accepted: 01/07/2020] [Indexed: 06/10/2023]
Abstract
Transcription factor (TF) gene clusters in plants, such as tomato, potato, petunia, tobacco, and almond, have been characterized for their roles in the biosynthesis of diverse array of specialized metabolites. In Catharanthus roseus, three AP2/ERF TFs, ORCA3, ORCA4, and ORCA5, have been shown to be present on the same genomic scaffold, forming a cluster that regulates the biosynthesis of pharmaceutically important terpenoid indole alkaloids (TIAs). Our analysis of the recently updated C. roseus genome sequence revealed that the ORCA cluster comprises two additional AP2/ERFs, the previously characterized ORCA2 and a newly identified member designated as ORCA6. Transcriptomic analysis revealed that the ORCAs are highly expressed in stems, followed by leaves, roots and flowers. Expression of ORCAs was differentially induced in response to methyl-jasmonate and ethylene treatment. In addition, ORCA6 activated the strictosidine synthase (STR) promoter in tobacco cells. Activation of the STR promoter was significantly higher when ORCA2 or ORCA6 was coexpressed with the mitogen-activated protein kinase kinase, CrMPKK1. Furthermore, transient overexpression of ORCA6 in C. roseus flower petals activated TIA pathway gene expression and TIA accumulation. The results described here advance our understanding of regulation of TIA pathway by the ORCA gene cluster and the evolution for plant ERF gene clusters.
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Affiliation(s)
- Sanjay Kumar Singh
- Department of Plant and Soil Sciences and the Kentucky Tobacco Research and Development Center, University of Kentucky, 1401 University Drive, Lexington, KY 40546 USA
| | - Barunava Patra
- Department of Plant and Soil Sciences and the Kentucky Tobacco Research and Development Center, University of Kentucky, 1401 University Drive, Lexington, KY 40546 USA
| | - Priyanka Paul
- Department of Plant and Soil Sciences and the Kentucky Tobacco Research and Development Center, University of Kentucky, 1401 University Drive, Lexington, KY 40546 USA
| | - Yongliang Liu
- Department of Plant and Soil Sciences and the Kentucky Tobacco Research and Development Center, University of Kentucky, 1401 University Drive, Lexington, KY 40546 USA; South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
| | - Sitakanta Pattanaik
- Department of Plant and Soil Sciences and the Kentucky Tobacco Research and Development Center, University of Kentucky, 1401 University Drive, Lexington, KY 40546 USA.
| | - Ling Yuan
- Department of Plant and Soil Sciences and the Kentucky Tobacco Research and Development Center, University of Kentucky, 1401 University Drive, Lexington, KY 40546 USA; South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China.
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132
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Li Q, Ramasamy S, Singh P, Hagel JM, Dunemann SM, Chen X, Chen R, Yu L, Tucker JE, Facchini PJ, Yeaman S. Gene clustering and copy number variation in alkaloid metabolic pathways of opium poppy. Nat Commun 2020; 11:1190. [PMID: 32132540 PMCID: PMC7055283 DOI: 10.1038/s41467-020-15040-2] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Accepted: 02/10/2020] [Indexed: 02/08/2023] Open
Abstract
Genes in plant secondary metabolic pathways enable biosynthesis of a range of medically and industrially important compounds, and are often clustered on chromosomes. Here, we study genomic clustering in the benzylisoquinoline alkaloid (BIA) pathway in opium poppy (Papaver somniferum), exploring relationships between gene expression, copy number variation, and metabolite production. We use Hi-C to improve the existing draft genome assembly, yielding chromosome-scale scaffolds that include 35 previously unanchored BIA genes. We find that co-expression of BIA genes increases within clusters and identify candidates with unknown function based on clustering and covariation in expression and alkaloid production. Copy number variation in critical BIA genes correlates with stark differences in alkaloid production, linking noscapine production with an 11-gene deletion, and increased thebaine/decreased morphine production with deletion of a T6ODM cluster. Our results show that the opium poppy genome is still dynamically evolving in ways that contribute to medically and industrially important phenotypes.
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Affiliation(s)
- Qiushi Li
- Department of Biological Sciences, University of Calgary, Calgary, Alberta, T2N 1N4, Canada
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
| | - Sukanya Ramasamy
- Department of Biological Sciences, University of Calgary, Calgary, Alberta, T2N 1N4, Canada
| | - Pooja Singh
- Department of Biological Sciences, University of Calgary, Calgary, Alberta, T2N 1N4, Canada
| | - Jillian M Hagel
- Department of Biological Sciences, University of Calgary, Calgary, Alberta, T2N 1N4, Canada
- Willow Biosciences Inc., 3655 36 Street N.W., Calgary, Alberta, T2L 1Y8, Canada
| | - Sonja M Dunemann
- Department of Ecosystem and Public Health, University of Calgary, Calgary, Alberta, T2N 1N4, Canada
| | - Xue Chen
- Department of Biological Sciences, University of Calgary, Calgary, Alberta, T2N 1N4, Canada
- Willow Biosciences Inc., 3655 36 Street N.W., Calgary, Alberta, T2L 1Y8, Canada
| | - Rongji Chen
- Department of Biological Sciences, University of Calgary, Calgary, Alberta, T2N 1N4, Canada
| | - Lisa Yu
- Department of Biological Sciences, University of Calgary, Calgary, Alberta, T2N 1N4, Canada
| | - Joseph E Tucker
- Willow Biosciences Inc., 3655 36 Street N.W., Calgary, Alberta, T2L 1Y8, Canada
- Department of Biochemistry and Molecular Biology, University of Calgary, Calgary, Alberta, T2N 1N4, Canada
| | - Peter J Facchini
- Department of Biological Sciences, University of Calgary, Calgary, Alberta, T2N 1N4, Canada
- Willow Biosciences Inc., 3655 36 Street N.W., Calgary, Alberta, T2L 1Y8, Canada
| | - Sam Yeaman
- Department of Biological Sciences, University of Calgary, Calgary, Alberta, T2N 1N4, Canada.
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133
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Ono E, Waki T, Oikawa D, Murata J, Shiraishi A, Toyonaga H, Kato M, Ogata N, Takahashi S, Yamaguchi MA, Horikawa M, Nakayama T. Glycoside-specific glycosyltransferases catalyze regio-selective sequential glucosylations for a sesame lignan, sesaminol triglucoside. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2020; 101:1221-1233. [PMID: 31654577 DOI: 10.1111/tpj.14586] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2019] [Revised: 10/07/2019] [Accepted: 10/16/2019] [Indexed: 05/10/2023]
Abstract
Sesame (Sesamum indicum) seeds contain a large number of lignans, phenylpropanoid-related plant specialized metabolites. (+)-Sesamin and (+)-sesamolin are major hydrophobic lignans, whereas (+)-sesaminol primarily accumulates as a water-soluble sesaminol triglucoside (STG) with a sugar chain branched via β1→2 and β1→6-O-glucosidic linkages [i.e. (+)-sesaminol 2-O-β-d-glucosyl-(1→2)-O-β-d-glucoside-(1→6)-O-β-d-glucoside]. We previously reported that the 2-O-glucosylation of (+)-sesaminol aglycon and β1→6-O-glucosylation of (+)-sesaminol 2-O-β-d-glucoside (SMG) are mediated by UDP-sugar-dependent glucosyltransferases (UGT), UGT71A9 and UGT94D1, respectively. Here we identified a distinct UGT, UGT94AG1, that specifically catalyzes the β1→2-O-glucosylation of SMG and (+)-sesaminol 2-O-β-d-glucosyl-(1→6)-O-β-d-glucoside [termed SDG(β1→6)]. UGT94AG1 was phylogenetically related to glycoside-specific glycosyltransferases (GGTs) and co-ordinately expressed with UGT71A9 and UGT94D1 in the seeds. The role of UGT94AG1 in STG biosynthesis was further confirmed by identification of a STG-deficient sesame mutant that predominantly accumulates SDG(β1→6) due to a destructive insertion in the coding sequence of UGT94AG1. We also identified UGT94AA2 as an alternative UGT potentially involved in sugar-sugar β1→6-O-glucosylation, in addition to UGT94D1, during STG biosynthesis. Yeast two-hybrid assays showed that UGT71A9, UGT94AG1, and UGT94AA2 were found to interact with a membrane-associated P450 enzyme, CYP81Q1 (piperitol/sesamin synthase), suggesting that these UGTs are components of a membrane-bound metabolon for STG biosynthesis. A comparison of kinetic parameters of these UGTs further suggested that the main β-O-glucosylation sequence of STG biosynthesis is β1→2-O-glucosylation of SMG by UGT94AG1 followed by UGT94AA2-mediated β1→6-O-glucosylation. These findings together establish the complete biosynthetic pathway of STG and shed light on the evolvability of regio-selectivity of sequential glucosylations catalyzed by GGTs.
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Affiliation(s)
- Eiichiro Ono
- Suntory Global Innovation Center (SIC) Ltd., Research Institute, Soraku-gun, Kyoto, 619-0284, Japan
| | - Toshiyuki Waki
- Graduate School of Engineering, Tohoku University, Sendai, Miyagi, 980-8579, Japan
| | - Daiki Oikawa
- Graduate School of Engineering, Tohoku University, Sendai, Miyagi, 980-8579, Japan
| | - Jun Murata
- Suntory Bioorganic Research Institute (SUNBOR), Suntory Foundation for Life Sciences, Soraku-gun, Kyoto, 619-0284, Japan
| | - Akira Shiraishi
- Suntory Bioorganic Research Institute (SUNBOR), Suntory Foundation for Life Sciences, Soraku-gun, Kyoto, 619-0284, Japan
| | - Hiromi Toyonaga
- Suntory Global Innovation Center (SIC) Ltd., Research Institute, Soraku-gun, Kyoto, 619-0284, Japan
| | - Masako Kato
- National Agriculture and Food Research Organization (NARO), Tsukuba, Ibaraki, 305-8517, Japan
| | - Naoki Ogata
- National Agriculture and Food Research Organization (NARO), Tsukuba, Ibaraki, 305-8517, Japan
| | - Seiji Takahashi
- Graduate School of Engineering, Tohoku University, Sendai, Miyagi, 980-8579, Japan
| | | | - Manabu Horikawa
- Suntory Bioorganic Research Institute (SUNBOR), Suntory Foundation for Life Sciences, Soraku-gun, Kyoto, 619-0284, Japan
| | - Toru Nakayama
- Graduate School of Engineering, Tohoku University, Sendai, Miyagi, 980-8579, Japan
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134
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Chromatin Analysis of Metabolic Gene Clusters in Plants. Methods Mol Biol 2020. [PMID: 32088894 DOI: 10.1007/978-1-0716-0179-2_10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
Abstract
Plant metabolic gene clusters consist of neighboring genes that are involved in the biosynthesis of secondary or specialized metabolites. The genes within clusters are typically co-regulated, share a common set of chromatin marks, and code for the biosynthesis enzymes of a single metabolic pathway. Here, we describe three essential protocols for the basic analysis of metabolic gene clusters at transcription, histone modification, and metabolite level. The protocols are specified to clusters in the Arabidopsis thaliana genome and are transferable to other plant species.
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135
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Paul P, Singh SK, Patra B, Liu X, Pattanaik S, Yuan L. Mutually Regulated AP2/ERF Gene Clusters Modulate Biosynthesis of Specialized Metabolites in Plants. PLANT PHYSIOLOGY 2020; 182:840-856. [PMID: 31727678 PMCID: PMC6997685 DOI: 10.1104/pp.19.00772] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Accepted: 10/28/2019] [Indexed: 05/14/2023]
Abstract
APETALA2/ETHYLENE RESPONSE FACTOR (AP2/ERF) gene clusters regulate the biosynthesis of diverse specialized metabolites, including steroidal glycoalkaloids in tomato (Solanum lycopersicum) and potato (Solanum tuberosum), nicotine in tobacco (Nicotiana tabacum), and pharmaceutically valuable terpenoid indole alkaloids in Madagascar periwinkle (Catharanthus roseus). However, the regulatory relationships between individual AP2/ERF genes within the cluster remain unexplored. We uncovered intracluster regulation of the C. roseus AP2/ERF regulatory circuit, which consists of ORCA3, ORCA4, and ORCA5 ORCA3 and ORCA5 activate ORCA4 by directly binding to a GC-rich motif in the ORCA4 promoter. ORCA5 regulates its own expression through a positive autoregulatory loop and indirectly activates ORCA3 In determining the functional conservation of AP2/ERF clusters in other plant species, we found that GC-rich motifs are present in the promoters of analogous AP2/ERF clusters in tobacco, tomato, and potato. Intracluster regulation is evident within the tobacco NICOTINE2 (NIC2) ERF cluster. Moreover, overexpression of ORCA5 in tobacco and of NIC2 ERF189 in C. roseus hairy roots activates nicotine and terpenoid indole alkaloid pathway genes, respectively, suggesting that the AP2/ERFs are functionally equivalent and are likely to be interchangeable. Elucidation of the intracluster and mutual regulation of transcription factor gene clusters advances our understanding of the underlying molecular mechanism governing regulatory gene clusters in plants.
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Affiliation(s)
- Priyanka Paul
- Department of Plant and Soil Sciences and Kentucky Tobacco Research and Development Center, University of Kentucky, Lexington, Kentucky 40546
| | - Sanjay Kumar Singh
- Department of Plant and Soil Sciences and Kentucky Tobacco Research and Development Center, University of Kentucky, Lexington, Kentucky 40546
| | - Barunava Patra
- Department of Plant and Soil Sciences and Kentucky Tobacco Research and Development Center, University of Kentucky, Lexington, Kentucky 40546
| | - Xiaoyu Liu
- College of Life Sciences, Shanxi Agricultural University, Shanxi 030801, China
| | - Sitakanta Pattanaik
- Department of Plant and Soil Sciences and Kentucky Tobacco Research and Development Center, University of Kentucky, Lexington, Kentucky 40546
| | - Ling Yuan
- Department of Plant and Soil Sciences and Kentucky Tobacco Research and Development Center, University of Kentucky, Lexington, Kentucky 40546
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China
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136
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Ganley JG, Derbyshire ER. Linking Genes to Molecules in Eukaryotic Sources: An Endeavor to Expand Our Biosynthetic Repertoire. Molecules 2020; 25:E625. [PMID: 32023950 PMCID: PMC7036892 DOI: 10.3390/molecules25030625] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Revised: 01/23/2020] [Accepted: 01/30/2020] [Indexed: 02/06/2023] Open
Abstract
The discovery of natural products continues to interest chemists and biologists for their utility in medicine as well as facilitating our understanding of signaling, pathogenesis, and evolution. Despite an attenuation in the discovery rate of new molecules, the current genomics and transcriptomics revolution has illuminated the untapped biosynthetic potential of many diverse organisms. Today, natural product discovery can be driven by biosynthetic gene cluster (BGC) analysis, which is capable of predicting enzymes that catalyze novel reactions and organisms that synthesize new chemical structures. This approach has been particularly effective in mining bacterial and fungal genomes where it has facilitated the discovery of new molecules, increased the understanding of metabolite assembly, and in some instances uncovered enzymes with intriguing synthetic utility. While relatively less is known about the biosynthetic potential of non-fungal eukaryotes, there is compelling evidence to suggest many encode biosynthetic enzymes that produce molecules with unique bioactivities. In this review, we highlight how the advances in genomics and transcriptomics have aided natural product discovery in sources from eukaryotic lineages. We summarize work that has successfully connected genes to previously identified molecules and how advancing these techniques can lead to genetics-guided discovery of novel chemical structures and reactions distributed throughout the tree of life. Ultimately, we discuss the advantage of increasing the known biosynthetic space to ease access to complex natural and non-natural small molecules.
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Affiliation(s)
- Jack G Ganley
- Department of Chemistry, Duke University, 124 Science Drive, Durham, NC 27708-0346, USA
| | - Emily R Derbyshire
- Department of Chemistry, Duke University, 124 Science Drive, Durham, NC 27708-0346, USA
- Department of Molecular Genetics and Microbiology, Duke University Medical Center, 213 Research Drive, Durham, NC 27710, USA
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137
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Auboeuf D. Physicochemical Foundations of Life that Direct Evolution: Chance and Natural Selection are not Evolutionary Driving Forces. Life (Basel) 2020; 10:life10020007. [PMID: 31973071 PMCID: PMC7175370 DOI: 10.3390/life10020007] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Revised: 01/15/2020] [Accepted: 01/16/2020] [Indexed: 12/11/2022] Open
Abstract
The current framework of evolutionary theory postulates that evolution relies on random mutations generating a diversity of phenotypes on which natural selection acts. This framework was established using a top-down approach as it originated from Darwinism, which is based on observations made of complex multicellular organisms and, then, modified to fit a DNA-centric view. In this article, it is argued that based on a bottom-up approach starting from the physicochemical properties of nucleic and amino acid polymers, we should reject the facts that (i) natural selection plays a dominant role in evolution and (ii) the probability of mutations is independent of the generated phenotype. It is shown that the adaptation of a phenotype to an environment does not correspond to organism fitness, but rather corresponds to maintaining the genome stability and integrity. In a stable environment, the phenotype maintains the stability of its originating genome and both (genome and phenotype) are reproduced identically. In an unstable environment (i.e., corresponding to variations in physicochemical parameters above a physiological range), the phenotype no longer maintains the stability of its originating genome, but instead influences its variations. Indeed, environment- and cellular-dependent physicochemical parameters define the probability of mutations in terms of frequency, nature, and location in a genome. Evolution is non-deterministic because it relies on probabilistic physicochemical rules, and evolution is driven by a bidirectional interplay between genome and phenotype in which the phenotype ensures the stability of its originating genome in a cellular and environmental physicochemical parameter-depending manner.
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Affiliation(s)
- Didier Auboeuf
- Laboratory of Biology and Modelling of the Cell, Univ Lyon, ENS de Lyon, Univ Claude Bernard, CNRS UMR 5239, INSERM U1210, 46 Allée d'Italie, Site Jacques Monod, F-69007, Lyon, France
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138
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Jeon JE, Kim JG, Fischer CR, Mehta N, Dufour-Schroif C, Wemmer K, Mudgett MB, Sattely E. A Pathogen-Responsive Gene Cluster for Highly Modified Fatty Acids in Tomato. Cell 2020; 180:176-187.e19. [PMID: 31923394 PMCID: PMC6956849 DOI: 10.1016/j.cell.2019.11.037] [Citation(s) in RCA: 80] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Revised: 06/11/2019] [Accepted: 11/27/2019] [Indexed: 11/17/2022]
Abstract
In response to biotic stress, plants produce suites of highly modified fatty acids that bear unusual chemical functionalities. Despite their chemical complexity and proposed roles in pathogen defense, little is known about the biosynthesis of decorated fatty acids in plants. Falcarindiol is a prototypical acetylenic lipid present in carrot, tomato, and celery that inhibits growth of fungi and human cancer cell lines. Using a combination of untargeted metabolomics and RNA sequencing, we discovered a biosynthetic gene cluster in tomato (Solanum lycopersicum) required for falcarindiol production. By reconstituting initial biosynthetic steps in a heterologous host and generating transgenic pathway mutants in tomato, we demonstrate a direct role of the cluster in falcarindiol biosynthesis and resistance to fungal and bacterial pathogens in tomato leaves. This work reveals a mechanism by which plants sculpt their lipid pool in response to pathogens and provides critical insight into the complex biochemistry of alkynyl lipid production.
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Affiliation(s)
- Ju Eun Jeon
- Department of Chemical Engineering, Stanford University, Stanford, CA 94305, USA; Department of Biology, Stanford University, Stanford, CA 94305, USA
| | - Jung-Gun Kim
- Department of Biology, Stanford University, Stanford, CA 94305, USA
| | - Curt R Fischer
- Stanford ChEM-H (Chemistry, Engineering, and Medicine for Human Health), Stanford University, Stanford, CA 94305, USA
| | - Niraj Mehta
- Department of Chemistry, Stanford University, Stanford, CA 94305, USA
| | | | | | - Mary Beth Mudgett
- Department of Biology, Stanford University, Stanford, CA 94305, USA.
| | - Elizabeth Sattely
- Department of Chemical Engineering, Stanford University, Stanford, CA 94305, USA; Howard Hughes Medical Institute, Stanford, CA 94305, USA.
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139
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De La Torre AR, Piot A, Liu B, Wilhite B, Weiss M, Porth I. Functional and morphological evolution in gymnosperms: A portrait of implicated gene families. Evol Appl 2020; 13:210-227. [PMID: 31892953 PMCID: PMC6935586 DOI: 10.1111/eva.12839] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Revised: 04/25/2019] [Accepted: 07/02/2019] [Indexed: 12/12/2022] Open
Abstract
Gymnosperms diverged from their sister plant clade of flowering plants 300 Mya. Morphological and functional divergence between the two major seed plant clades involved significant changes in their reproductive biology, water-conducting systems, secondary metabolism, stress defense mechanisms, and small RNA-mediated epigenetic silencing. The relatively recent sequencing of several gymnosperm genomes and the development of new genomic resources have enabled whole-genome comparisons within gymnosperms, and between angiosperms and gymnosperms. In this paper, we aim to understand how genes and gene families have contributed to the major functional and morphological differences in gymnosperms, and how this information can be used for applied breeding and biotechnology. In addition, we have analyzed the angiosperm versus gymnosperm evolution of the pleiotropic drug resistance (PDR) gene family with a wide range of functionalities in plants' interaction with their environment including defense mechanisms. Some of the genes reviewed here are newly studied members of gene families that hold potential for biotechnological applications related to commercial and pharmacological value. Some members of conifer gene families can also be exploited for their potential in phytoremediation applications.
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Affiliation(s)
| | - Anthony Piot
- Department of Wood and Forest SciencesLaval UniversityQuebec CityQuebecCanada
- Institute for System and Integrated Biology (IBIS)Laval UniversityQuebec CityQuebecCanada
- Centre for Forest Research (CEF)Laval UniversityQuebec CityQuebecCanada
| | - Bobin Liu
- School of ForestryNorthern Arizona UniversityFlagstaffAZUSA
- College of ForestryFujian Agricultural and Forestry UniversityFuzhouFujianChina
| | | | - Matthew Weiss
- School of ForestryNorthern Arizona UniversityFlagstaffAZUSA
| | - Ilga Porth
- Department of Wood and Forest SciencesLaval UniversityQuebec CityQuebecCanada
- Institute for System and Integrated Biology (IBIS)Laval UniversityQuebec CityQuebecCanada
- Centre for Forest Research (CEF)Laval UniversityQuebec CityQuebecCanada
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140
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Chevrette MG, Gutiérrez-García K, Selem-Mojica N, Aguilar-Martínez C, Yañez-Olvera A, Ramos-Aboites HE, Hoskisson PA, Barona-Gómez F. Evolutionary dynamics of natural product biosynthesis in bacteria. Nat Prod Rep 2019; 37:566-599. [PMID: 31822877 DOI: 10.1039/c9np00048h] [Citation(s) in RCA: 59] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Covering: 2008 up to 2019The forces of biochemical adaptive evolution operate at the level of genes, manifesting in complex phenotypes and the global biodiversity of proteins and metabolites. While evolutionary histories have been deciphered for some other complex traits, the origins of natural product biosynthesis largely remain a mystery. This fundamental knowledge gap is surprising given the many decades of research probing the genetic, chemical, and biophysical mechanisms of bacterial natural product biosynthesis. Recently, evolutionary thinking has begun to permeate this otherwise mechanistically dominated field. Natural products are now sometimes referred to as 'specialized' rather than 'secondary' metabolites, reinforcing the importance of their biological and ecological functions. Here, we review known evolutionary mechanisms underlying the overwhelming chemical diversity of bacterial secondary metabolism, focusing on enzyme promiscuity and the evolution of enzymatic domains that enable metabolic traits. We discuss the mechanisms that drive the assembly of natural product biosynthetic gene clusters and propose formal definitions for 'specialized' and 'secondary' metabolism. We further explore how biosynthetic gene clusters evolve to synthesize related molecular species, and in turn how the biological and ecological roles that emerge from metabolic diversity are acted on by selection. Finally, we reconcile chemical, functional, and genetic data into an evolutionary model, the dynamic chemical matrix evolutionary hypothesis, in which the relationships between chemical distance, biomolecular activity, and relative fitness shape adaptive landscapes.
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Affiliation(s)
- Marc G Chevrette
- Wisconsin Institute for Discovery, Department of Plant Pathology, University of Wisconsin-Madison, Madison, WI, USA.
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141
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Louveau T, Osbourn A. The Sweet Side of Plant-Specialized Metabolism. Cold Spring Harb Perspect Biol 2019; 11:cshperspect.a034744. [PMID: 31235546 DOI: 10.1101/cshperspect.a034744] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Glycosylation plays a major role in the structural diversification of plant natural products. It influences the properties of molecules by modifying the reactivity and solubility of the corresponding aglycones, so influencing cellular localization and bioactivity. Glycosylation of plant natural products is usually carried out by uridine diphosphate(UDP)-dependent glycosyltransferases (UGTs) belonging to the carbohydrate-active enzyme glycosyltransferase 1 (GT1) family. These enzymes transfer sugars from UDP-activated sugar moieties to small hydrophobic acceptor molecules. Plant GT1s generally show high specificity for their sugar donors and recognize a single UDP sugar as their substrate. In contrast, they are generally promiscuous with regard to acceptors, making them attractive biotechnological tools for small molecule glycodiversification. Although microbial hosts have traditionally been used for heterologous engineering of plant-derived glycosides, transient plant expression technology offers a potentially disruptive platform for rapid characterization of new plant glycosyltransferases and biosynthesis of complex glycosides.
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Affiliation(s)
- Thomas Louveau
- Department of Metabolic Biology, John Innes Centre, Norwich Research Park, Norwich NR4 7UH, United Kingdom
| | - Anne Osbourn
- Department of Metabolic Biology, John Innes Centre, Norwich Research Park, Norwich NR4 7UH, United Kingdom
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142
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Sharma E, Jain M, Khurana JP. Differential quantitative regulation of specific gene groups and pathways under drought stress in rice. Genomics 2019; 111:1699-1712. [DOI: 10.1016/j.ygeno.2018.11.024] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Revised: 09/10/2018] [Accepted: 11/21/2018] [Indexed: 10/27/2022]
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143
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Boachon B, Burdloff Y, Ruan JX, Rojo R, Junker RR, Vincent B, Nicolè F, Bringel F, Lesot A, Henry L, Bassard JE, Mathieu S, Allouche L, Kaplan I, Dudareva N, Vuilleumier S, Miesch L, André F, Navrot N, Chen XY, Werck-Reichhart D. A Promiscuous CYP706A3 Reduces Terpene Volatile Emission from Arabidopsis Flowers, Affecting Florivores and the Floral Microbiome. THE PLANT CELL 2019; 31:2947-2972. [PMID: 31628167 PMCID: PMC6925022 DOI: 10.1105/tpc.19.00320] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Revised: 09/06/2019] [Accepted: 10/16/2019] [Indexed: 05/15/2023]
Abstract
Flowers are essential but vulnerable plant organs, exposed to pollinators and florivores; however, flower chemical defenses are rarely investigated. We show here that two clustered terpene synthase and cytochrome P450 encoding genes (TPS11 and CYP706A3) on chromosome 5 of Arabidopsis (Arabidopsis thaliana) are tightly coexpressed in floral tissues, upon anthesis and during floral bud development. TPS11 was previously reported to generate a blend of sesquiterpenes. By heterologous coexpression of TPS11 and CYP706A3 in yeast (Saccharomyces cerevisiae) and Nicotiana benthamiana, we demonstrate that CYP706A3 is active on TPS11 products and also further oxidizes its own primary oxidation products. Analysis of headspace and soluble metabolites in cyp706a3 and 35S:CYP706A3 mutants indicate that CYP706A3-mediated metabolism largely suppresses sesquiterpene and most monoterpene emissions from opening flowers, and generates terpene oxides that are retained in floral tissues. In flower buds, the combined expression of TPS11 and CYP706A3 also suppresses volatile emissions and generates soluble sesquiterpene oxides. Florivory assays with the Brassicaceae specialist Plutella xylostella demonstrate that insect larvae avoid feeding on buds expressing CYP706A3 and accumulating terpene oxides. Composition of the floral microbiome appears also to be modulated by CYP706A3 expression. TPS11 and CYP706A3 simultaneously evolved within Brassicaceae and form the most versatile functional gene cluster described in higher plants so far.plantcell;31/12/2947/FX1F1fx1.
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Affiliation(s)
- Benoît Boachon
- Institut de Biologie Moléculaire des Plantes du Centre National de la Recherche Scientifique (CNRS), Unité Propre de Recherche 2357, Université de Strasbourg, 67084 Strasbourg, France
- Department of Biochemistry, Purdue University, West Lafayette, Indiana 47907
- University of Lyon, UJM-Saint-Etienne, CNRS, BVpam Formation de Recherche en Evolution 3727, 42000 Saint-Etienne, France
| | - Yannick Burdloff
- Institut de Biologie Moléculaire des Plantes du Centre National de la Recherche Scientifique (CNRS), Unité Propre de Recherche 2357, Université de Strasbourg, 67084 Strasbourg, France
| | - Ju-Xin Ruan
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, University of CAS, Chinese Academy of Sciences, Shanghai 200032, China
- Plant Science Research Center, Shanghai Key Laboratory of Plant Functional Genomics and Resources, Shanghai Chenshan Botanical Garden, Shanghai 201602, China
| | - Rakotoharisoa Rojo
- Institute for Integrative Biology of the Cell (I2BC), iBiTec-S/SBSM, Commissariat à l'Energie Atomique, CNRS, Université Paris Sud, Université Paris-Saclay, 91191 Gif-sur-Yvette, France
| | - Robert R Junker
- Evolutionary Ecology of Plants, Department Biodiversity of Plants, Faculty of Biology, Philipps-University Marburg, 35043 Marburg, Germany
| | - Bruno Vincent
- Plateforme d'Analyses pour la Chimie, GDS 3648, CNRS, Université de Strasbourg, 67000 Strasbourg, France
| | - Florence Nicolè
- University of Lyon, UJM-Saint-Etienne, CNRS, BVpam Formation de Recherche en Evolution 3727, 42000 Saint-Etienne, France
| | - Françoise Bringel
- Génétique Moléculaire, Génomique, Microbiologie, Université de Strasbourg, UMR 7156 CNRS, 67000 Strasbourg, France
| | - Agnès Lesot
- Institut de Biologie Moléculaire des Plantes du Centre National de la Recherche Scientifique (CNRS), Unité Propre de Recherche 2357, Université de Strasbourg, 67084 Strasbourg, France
| | - Laura Henry
- Department of Biochemistry, Purdue University, West Lafayette, Indiana 47907
| | - Jean-Etienne Bassard
- Institut de Biologie Moléculaire des Plantes du Centre National de la Recherche Scientifique (CNRS), Unité Propre de Recherche 2357, Université de Strasbourg, 67084 Strasbourg, France
| | - Sandrine Mathieu
- Institut de Biologie Moléculaire des Plantes du Centre National de la Recherche Scientifique (CNRS), Unité Propre de Recherche 2357, Université de Strasbourg, 67084 Strasbourg, France
| | - Lionel Allouche
- Evolutionary Ecology of Plants, Department Biodiversity of Plants, Faculty of Biology, Philipps-University Marburg, 35043 Marburg, Germany
| | - Ian Kaplan
- Department of Entomology, Purdue University, West Lafayette, Indiana 47907
| | - Natalia Dudareva
- Department of Biochemistry, Purdue University, West Lafayette, Indiana 47907
| | - Stéphane Vuilleumier
- Plateforme d'Analyses pour la Chimie, GDS 3648, CNRS, Université de Strasbourg, 67000 Strasbourg, France
- Génétique Moléculaire, Génomique, Microbiologie, Université de Strasbourg, UMR 7156 CNRS, 67000 Strasbourg, France
| | - Laurence Miesch
- Equipe de Synthèse Organique et Phytochimie, Institut de Chimie, Unité Mixte de Recherche 7177, CNRS, Université de Strasbourg, 67000 Strasbourg, France
| | - François André
- Institute for Integrative Biology of the Cell (I2BC), iBiTec-S/SBSM, Commissariat à l'Energie Atomique, CNRS, Université Paris Sud, Université Paris-Saclay, 91191 Gif-sur-Yvette, France
| | - Nicolas Navrot
- Institut de Biologie Moléculaire des Plantes du Centre National de la Recherche Scientifique (CNRS), Unité Propre de Recherche 2357, Université de Strasbourg, 67084 Strasbourg, France
| | - Xiao-Ya Chen
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, University of CAS, Chinese Academy of Sciences, Shanghai 200032, China
- Plant Science Research Center, Shanghai Key Laboratory of Plant Functional Genomics and Resources, Shanghai Chenshan Botanical Garden, Shanghai 201602, China
| | - Danièle Werck-Reichhart
- Institut de Biologie Moléculaire des Plantes du Centre National de la Recherche Scientifique (CNRS), Unité Propre de Recherche 2357, Université de Strasbourg, 67084 Strasbourg, France
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Chen X, Liu F, Liu L, Qiu J, Fang D, Wang W, Zhang X, Ye C, Timko MP, Zhu QH, Fan L, Xiao B. Characterization and evolution of gene clusters for terpenoid phytoalexin biosynthesis in tobacco. PLANTA 2019; 250:1687-1702. [PMID: 31414203 DOI: 10.1007/s00425-019-03255-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Accepted: 08/06/2019] [Indexed: 06/10/2023]
Abstract
MAIN CONCLUSION The study performed genome-wide identification, characterization and evolution analysis of gene clusters for phytoalexin terpenoid biosynthesis in tobacco, and specifically illustrated ones for capsidiol, an efficient defensive specialized metabolite. Terpenoid phytoalexins play an important role in plant self-defense against pest and pathogen attack. Terpenoid biosynthesis involves terpene synthase and cytochrome P450, which always locate and function as cluster(s). In this study, we performed genome-wide investigation of metabolic gene clusters involved in terpenoid production in tobacco (Nicotiana tabacum). Due to the complexity of the tobacco genome, we modified a published prediction pipeline to reduce the influence of the large number of repeats and to improve the annotation of tobacco genes with respect to their metabolic functions. We identified 1181 metabolic gene clusters with 34 of them potentially being involved in terpenoid biosynthesis. Through integration with transcriptome and metabolic pathway annotation analyses, 3 of the 34 terpenoid biosynthesis-related gene clusters were determined to be high-confidence ones, with 2 involved in biosynthesis of capsidiol, a terpenoid recognized as 1 of the effective resistance compounds in the Nicotiana species. The capsidiol-related gene cluster was conserved in N. sylvestris, N. tomentosiformis and N. attenuate. Our findings demonstrate that phytoalexins in tobacco can arise from operon-like gene clusters, a genomic pattern characterized as being beneficial for rapid stress response, gene co-regulation, co-function and co-heredity.
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Affiliation(s)
- Xi Chen
- Institute of Crop Science and Institute of Bioinformatics, Zhejiang University, Hangzhou, 310058, China
- Research Center for Air Pollution and Health, Zhejiang University, Hangzhou, 310058, China
| | - Fangjie Liu
- Institute of Crop Science and Institute of Bioinformatics, Zhejiang University, Hangzhou, 310058, China
- Research Center for Air Pollution and Health, Zhejiang University, Hangzhou, 310058, China
| | - Lu Liu
- Institute of Crop Science and Institute of Bioinformatics, Zhejiang University, Hangzhou, 310058, China
| | - Jie Qiu
- Institute of Crop Science and Institute of Bioinformatics, Zhejiang University, Hangzhou, 310058, China
| | - Dunhuang Fang
- Key Laboratory of Tobacco Biotechnological Breeding, Yunnan Academy of Tobacco Agricultural Sciences, Kunming, 650021, China
| | - Weidi Wang
- Institute of Crop Science and Institute of Bioinformatics, Zhejiang University, Hangzhou, 310058, China
| | - Xingcheng Zhang
- Institute of Crop Science and Institute of Bioinformatics, Zhejiang University, Hangzhou, 310058, China
| | - Chuyu Ye
- Institute of Crop Science and Institute of Bioinformatics, Zhejiang University, Hangzhou, 310058, China
| | - Michael Paul Timko
- Department of Biology, University of Virginia, Charlottesville, VA, 22904, USA
| | - Qian-Hao Zhu
- CSIRO Agriculture and Food, GPO Box 1700, Canberra, ACT, 2601, Australia
| | - Longjiang Fan
- Institute of Crop Science and Institute of Bioinformatics, Zhejiang University, Hangzhou, 310058, China
- Research Center for Air Pollution and Health, Zhejiang University, Hangzhou, 310058, China
| | - Bingguang Xiao
- Key Laboratory of Tobacco Biotechnological Breeding, Yunnan Academy of Tobacco Agricultural Sciences, Kunming, 650021, China.
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145
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Frey M, Klaiber I, Conrad J, Bersch A, Pateraki I, Ro DK, Spring O. Characterization of CYP71AX36 from Sunflower (Helianthus annuus L., Asteraceae). Sci Rep 2019; 9:14295. [PMID: 31586110 PMCID: PMC6778120 DOI: 10.1038/s41598-019-50520-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Accepted: 09/10/2019] [Indexed: 11/09/2022] Open
Abstract
Sesquiterpene lactones (STL) are a subclass of isoprenoids with many known bioactivities frequently found in the Asteraceae family. In recent years, remarkable progress has been made regarding the biochemistry of STL, and today the biosynthetic pathway of the core backbones of many STLs has been elucidated. Consequently, the focus has shifted to the discovery of the decorating enzymes that can modify the core skeleton with functional hydroxy groups. Using in vivo pathway reconstruction assays in heterologous organisms such as Saccharomyces cerevisiae and Nicotiana benthamiana, we have analyzed several cytochrome P450 enzyme genes of the CYP71AX subfamily from Helianthus annuus clustered in close proximity to one another on the sunflower genome. We show that one member of this subfamily, CYP71AX36, can catalyze the conversion of costunolide to 14-hydroxycostunolide. The catalytic activity of CYP71AX36 may be of use for the chemoenzymatic production of antileukemic 14-hydroxycostunolide derivatives and other STLs of pharmaceutical interest. We also describe the full 2D-NMR assignment of 14-hydroxycostunolide and provide all 13C chemical shifts of the carbon skeleton for the first time.
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Affiliation(s)
- Maximilian Frey
- Institute of Botany, University of Hohenheim, Garbenstraße 30, 70593, Stuttgart, Germany.
| | - Iris Klaiber
- Mass Spectrometry Unit, Core Facility Hohenheim, University of Hohenheim, Emil-Wolff-Str. 12, 70599, Stuttgart, Germany
| | - Jürgen Conrad
- Institute of Chemistry, University of Hohenheim, Garbenstraße 30, 70593, Stuttgart, Germany
| | - Aylin Bersch
- Institute of Botany, University of Hohenheim, Garbenstraße 30, 70593, Stuttgart, Germany
| | - Irini Pateraki
- Department of Plant and Environmental Sciences, Faculty of Science, University of Copenhagen, Thorvaldsensvej 40, Frederiksberg C, Denmark
| | - Dae-Kyun Ro
- Department of Biological Sciences, University of Calgary, Calgary, T2N 1N4, Canada
| | - Otmar Spring
- Institute of Botany, University of Hohenheim, Garbenstraße 30, 70593, Stuttgart, Germany
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146
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Huang AC, Osbourn A. Plant terpenes that mediate below-ground interactions: prospects for bioengineering terpenoids for plant protection. PEST MANAGEMENT SCIENCE 2019; 75:2368-2377. [PMID: 30884099 PMCID: PMC6690754 DOI: 10.1002/ps.5410] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Revised: 03/05/2019] [Accepted: 03/13/2019] [Indexed: 05/03/2023]
Abstract
Plants are sessile organisms that have evolved various mechanisms to adapt to complex and changing environments. One important feature of plant adaption is the production of specialised metabolites. Terpenes are the largest class of specialised metabolites, with over 80 000 structures reported so far, and they have important ecological functions in plant adaptation. Here, we review the current knowledge on plant terpenes that mediate below-ground interactions between plants and other organisms, including microbes, herbivores and other plants. The discovery, functions and biosynthesis of these terpenes are discussed, and prospects for bioengineering terpenoids for plant protection are considered. © 2019 The Authors. Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.
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Affiliation(s)
- Ancheng C Huang
- Department of Metabolic Biology, John Innes CentreNorwich Research ParkNorwichUK
| | - Anne Osbourn
- Department of Metabolic Biology, John Innes CentreNorwich Research ParkNorwichUK
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147
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Rathi D, Pareek A, Zhang T, Pang Q, Chen S, Chakraborty S, Chakraborty N. Metabolite signatures of grasspea suspension-cultured cells illustrate the complexity of dehydration response. PLANTA 2019; 250:857-871. [PMID: 31203447 DOI: 10.1007/s00425-019-03211-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Accepted: 06/06/2019] [Indexed: 06/09/2023]
Abstract
This represents the first report deciphering the dehydration response of suspension-cultured cells of a crop species, highlighting unique and shared pathways, and adaptive mechanisms via profiling of 330 metabolites. Grasspea, being a hardy legume, is an ideal model system to study stress tolerance mechanisms in plants. In this study, we investigated the dehydration-responsive metabolome in grasspea suspension-cultured cells (SCCs) to identify the unique and shared metabolites crucial in imparting dehydration tolerance. To reveal the dehydration-induced metabolite signatures, SCCs of grasspea were exposed to 10% PEG, followed by metabolomic profiling. Chromatographic separation by HPLC coupled with MRM-MS led to the identification of 330 metabolites, designated dehydration-responsive metabolites (DRMs), which belonged to 28 varied functional classes. The metabolome was found to be constituted by carboxylic acids (17%), amino acids (13.5%), flavonoids (10.9%) and plant growth regulators (10%), among others. Pathway enrichment analysis revealed predominance of metabolites involved in phytohormone biosynthesis, secondary metabolism and osmotic adjustment. Exogenous application of DRMs, arbutin and acetylcholine, displayed improved physiological status in stress-resilient grasspea as well as hypersensitive pea, while administration of lauric acid imparted detrimental effects. This represents the first report on stress-induced metabolomic landscape of a crop species via a suspension culture system, which would provide new insights into the molecular mechanism of stress responses and adaptation in crop species.
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Affiliation(s)
- Divya Rathi
- National Institute of Plant Genome Research, Jawaharlal Nehru University Campus, Aruna Asaf Ali Marg, New Delhi, 110067, India
| | - Akanksha Pareek
- National Institute of Plant Genome Research, Jawaharlal Nehru University Campus, Aruna Asaf Ali Marg, New Delhi, 110067, India
| | - Tong Zhang
- Department of Biology, Genetics Institute, Plant Molecular and Cellular Biology Program, University of Florida, Gainesville, FL, 32610, USA
| | - Qiuying Pang
- Department of Biology, Genetics Institute, Plant Molecular and Cellular Biology Program, University of Florida, Gainesville, FL, 32610, USA
| | - Sixue Chen
- Department of Biology, Genetics Institute, Plant Molecular and Cellular Biology Program, University of Florida, Gainesville, FL, 32610, USA
- Proteomics and Mass Spectrometry Facility, Interdisciplinary Center for Biotechnology Research, University of Florida, Gainesville, FL, 32610, USA
| | - Subhra Chakraborty
- National Institute of Plant Genome Research, Jawaharlal Nehru University Campus, Aruna Asaf Ali Marg, New Delhi, 110067, India
| | - Niranjan Chakraborty
- National Institute of Plant Genome Research, Jawaharlal Nehru University Campus, Aruna Asaf Ali Marg, New Delhi, 110067, India.
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148
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Rokas A, Wisecaver JH, Lind AL. The birth, evolution and death of metabolic gene clusters in fungi. Nat Rev Microbiol 2019; 16:731-744. [PMID: 30194403 DOI: 10.1038/s41579-018-0075-3] [Citation(s) in RCA: 111] [Impact Index Per Article: 22.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Fungi contain a remarkable diversity of both primary and secondary metabolic pathways involved in ecologically specialized or accessory functions. Genes in these pathways are frequently physically linked on fungal chromosomes, forming metabolic gene clusters (MGCs). In this Review, we describe the diversity in the structure and content of fungal MGCs, their population-level and species-level variation, the evolutionary mechanisms that underlie their formation, maintenance and decay, and their ecological and evolutionary impact on fungal populations. We also discuss MGCs from other eukaryotes and the reasons for their preponderance in fungi. Improved knowledge of the evolutionary life cycle of MGCs will advance our understanding of the ecology of specialized metabolism and of the interplay between the lifestyle of an organism and genome architecture.
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Affiliation(s)
- Antonis Rokas
- Department of Biological Sciences, Vanderbilt University, Nashville, TN, USA. .,Department of Biomedical Informatics, Vanderbilt University School of Medicine, Nashville, TN, USA.
| | - Jennifer H Wisecaver
- Department of Biological Sciences, Vanderbilt University, Nashville, TN, USA.,Department of Biochemistry, Purdue University, West Lafayette, IN, USA
| | - Abigail L Lind
- Department of Biomedical Informatics, Vanderbilt University School of Medicine, Nashville, TN, USA.,Gladstone Institutes, San Francisco, CA, USA
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149
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Complex Patterns of Cannabinoid Alkyl Side-Chain Inheritance in Cannabis. Sci Rep 2019; 9:11421. [PMID: 31388099 PMCID: PMC6684623 DOI: 10.1038/s41598-019-47812-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Accepted: 07/24/2019] [Indexed: 12/20/2022] Open
Abstract
The cannabinoid alkyl side-chain represents an important pharmacophore, where genetic targeting of alkyl homologs has the potential to provide enhanced forms of Cannabis for biopharmaceutical manufacture. Delta(9)-tetrahydrocannabinolic acid (THCA) and cannabidiolic acid (CBDA) synthase genes govern dicyclic (CBDA) and tricyclic (THCA) cannabinoid composition. However, the inheritance of alkyl side-chain length has not been resolved, and few studies have investigated the contributions and interactions between cannabinoid synthesis pathway loci. To examine the inheritance of chemical phenotype (chemotype), THCAS and CBDAS genotypes were scored and alkyl cannabinoid segregation analysed in 210 F2 progeny derived from a cross between two Cannabis chemotypes divergent for alkyl and cyclic cannabinoids. Inheritance patterns of F2 progeny were non-Gaussian and deviated from Mendelian expectations. However, discrete alkyl cannabinoid segregation patterns consistent with digenic as well as epistatic modes of inheritance were observed among F2 THCAS and CBDAS genotypes. These results suggest linkage between cannabinoid pathway loci and highlight the need for further detailed characterisation of cannabinoid inheritance to facilitate metabolic engineering of chemically elite germplasm.
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150
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Knudsen C, Gallage NJ, Hansen CC, Møller BL, Laursen T. Dynamic metabolic solutions to the sessile life style of plants. Nat Prod Rep 2019; 35:1140-1155. [PMID: 30324199 PMCID: PMC6254060 DOI: 10.1039/c8np00037a] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Plants are sessile organisms. To compensate for not being able to escape when challenged by unfavorable growth conditions, pests or herbivores, plants have perfected their metabolic plasticity by having developed the capacity for on demand dynamic biosynthesis and storage of a plethora of phytochemicals.
Covering: up to 2018 Plants are sessile organisms. To compensate for not being able to escape when challenged by unfavorable growth conditions, pests or herbivores, plants have perfected their metabolic plasticity by having developed the capacity for on demand synthesis of a plethora of phytochemicals to specifically respond to the challenges arising during plant ontogeny. Key steps in the biosynthesis of phytochemicals are catalyzed by membrane-bound cytochrome P450 enzymes which in plants constitute a superfamily. In planta, the P450s may be organized in dynamic enzyme clusters (metabolons) and the genes encoding the P450s and other enzymes in a specific pathway may be clustered. Metabolon formation facilitates transfer of substrates between sequential enzymes and therefore enables the plant to channel the flux of general metabolites towards biosynthesis of specific phytochemicals. In the plant cell, compartmentalization of the operation of specific biosynthetic pathways in specialized plastids serves to avoid undesired metabolic cross-talk and offers distinct storage sites for molar concentrations of specific phytochemicals. Liquid–liquid phase separation may lead to formation of dense biomolecular condensates within the cytoplasm or vacuole allowing swift activation of the stored phytochemicals as required upon pest or herbivore attack. The molecular grid behind plant plasticity offers an endless reservoir of functional modules, which may be utilized as a synthetic biology tool-box for engineering of novel biological systems based on rational design principles. In this review, we highlight some of the concepts used by plants to coordinate biosynthesis and storage of phytochemicals.
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Affiliation(s)
- Camilla Knudsen
- Plant Biochemistry Laboratory, Department of Plant and Environmental Science, University of Copenhagen, DK-1871 Frederiksberg C, Denmark.
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