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Pushkova EN, Povkhova LV, Dvorianinova EM, Novakovskiy RO, Rozhmina TA, Gryzunov AA, Sigova EA, Zhernova DA, Borkhert EV, Turba AA, Yablokov AG, Bolsheva NL, Dmitriev AA, Melnikova NV. Expression of FAD and SAD Genes in Developing Seeds of Flax Varieties under Different Growth Conditions. PLANTS (BASEL, SWITZERLAND) 2024; 13:956. [PMID: 38611485 PMCID: PMC11013676 DOI: 10.3390/plants13070956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 03/10/2024] [Accepted: 03/12/2024] [Indexed: 04/14/2024]
Abstract
Flax seed is one of the richest plant sources of linolenic acid (LIN) and also contains unsaturated linoleic acid (LIO) and oleic acid (OLE). Stearoyl-ACP desaturases (SADs) and fatty acid desaturases (FADs) play key roles in the synthesis of flax fatty acids (FAs). However, there is no holistic view of which genes from the SAD and FAD families and at which developmental stages have the highest expression levels in flax seeds, as well as the influence of genotype and growth conditions on the expression profiles of these genes. We sequenced flax seed transcriptomes at 3, 7, 14, 21, and 28 days after flowering (DAF) for ten flax varieties with different oil FA compositions grown under three temperature/watering conditions. The expression levels of 25 genes of the SAD, FAD2, and FAD3 families were evaluated. FAD3b, FAD3a, FAD2b-2, SAD3-1, SAD2-1, SAD2-2, SAD3-2, FAD2a-1, and FAD2a-2 had the highest expression levels, which changed significantly during seed development. These genes probably play a key role in FA synthesis in flax seeds. High temperature and insufficient watering shifted the maximum expression levels of FAD and SAD genes to earlier developmental stages, while the opposite trend was observed for low temperature and excessive watering. Differences in the FAD and SAD expression profiles under different growth conditions may affect the FA composition of linseed oil. Stop codons in the FAD3a gene, resulting in a reduced LIN content, decreased the level of FAD3a transcript. The obtained results provide new insights into the synthesis of linseed oil.
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Affiliation(s)
- Elena N. Pushkova
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia; (E.N.P.); (L.V.P.); (E.M.D.); (R.O.N.); (T.A.R.); (E.A.S.); (D.A.Z.); (E.V.B.); (A.A.T.); (A.G.Y.); (N.L.B.)
| | - Liubov V. Povkhova
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia; (E.N.P.); (L.V.P.); (E.M.D.); (R.O.N.); (T.A.R.); (E.A.S.); (D.A.Z.); (E.V.B.); (A.A.T.); (A.G.Y.); (N.L.B.)
| | - Ekaterina M. Dvorianinova
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia; (E.N.P.); (L.V.P.); (E.M.D.); (R.O.N.); (T.A.R.); (E.A.S.); (D.A.Z.); (E.V.B.); (A.A.T.); (A.G.Y.); (N.L.B.)
- Moscow Institute of Physics and Technology, 141701 Moscow, Russia
| | - Roman O. Novakovskiy
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia; (E.N.P.); (L.V.P.); (E.M.D.); (R.O.N.); (T.A.R.); (E.A.S.); (D.A.Z.); (E.V.B.); (A.A.T.); (A.G.Y.); (N.L.B.)
| | - Tatiana A. Rozhmina
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia; (E.N.P.); (L.V.P.); (E.M.D.); (R.O.N.); (T.A.R.); (E.A.S.); (D.A.Z.); (E.V.B.); (A.A.T.); (A.G.Y.); (N.L.B.)
- Federal Research Center for Bast Fiber Crops, 172002 Torzhok, Russia
| | - Aleksey A. Gryzunov
- All-Russian Scientific Research Institute of Refrigeration Industry—Branch of V.M. Gorbatov Federal Research Center for Food Systems of Russian Academy of Sciences, 127422 Moscow, Russia;
| | - Elizaveta A. Sigova
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia; (E.N.P.); (L.V.P.); (E.M.D.); (R.O.N.); (T.A.R.); (E.A.S.); (D.A.Z.); (E.V.B.); (A.A.T.); (A.G.Y.); (N.L.B.)
- Moscow Institute of Physics and Technology, 141701 Moscow, Russia
| | - Daiana A. Zhernova
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia; (E.N.P.); (L.V.P.); (E.M.D.); (R.O.N.); (T.A.R.); (E.A.S.); (D.A.Z.); (E.V.B.); (A.A.T.); (A.G.Y.); (N.L.B.)
- Faculty of Biology, Lomonosov Moscow State University, 119234 Moscow, Russia
| | - Elena V. Borkhert
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia; (E.N.P.); (L.V.P.); (E.M.D.); (R.O.N.); (T.A.R.); (E.A.S.); (D.A.Z.); (E.V.B.); (A.A.T.); (A.G.Y.); (N.L.B.)
| | - Anastasia A. Turba
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia; (E.N.P.); (L.V.P.); (E.M.D.); (R.O.N.); (T.A.R.); (E.A.S.); (D.A.Z.); (E.V.B.); (A.A.T.); (A.G.Y.); (N.L.B.)
| | - Arthur G. Yablokov
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia; (E.N.P.); (L.V.P.); (E.M.D.); (R.O.N.); (T.A.R.); (E.A.S.); (D.A.Z.); (E.V.B.); (A.A.T.); (A.G.Y.); (N.L.B.)
| | - Nadezhda L. Bolsheva
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia; (E.N.P.); (L.V.P.); (E.M.D.); (R.O.N.); (T.A.R.); (E.A.S.); (D.A.Z.); (E.V.B.); (A.A.T.); (A.G.Y.); (N.L.B.)
| | - Alexey A. Dmitriev
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia; (E.N.P.); (L.V.P.); (E.M.D.); (R.O.N.); (T.A.R.); (E.A.S.); (D.A.Z.); (E.V.B.); (A.A.T.); (A.G.Y.); (N.L.B.)
| | - Nataliya V. Melnikova
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia; (E.N.P.); (L.V.P.); (E.M.D.); (R.O.N.); (T.A.R.); (E.A.S.); (D.A.Z.); (E.V.B.); (A.A.T.); (A.G.Y.); (N.L.B.)
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Povkhova LV, Pushkova EN, Rozhmina TA, Zhuchenko AA, Frykin RI, Novakovskiy RO, Dvorianinova EM, Gryzunov AA, Borkhert EV, Sigova EA, Vladimirov GN, Snezhkina AV, Kudryavtseva AV, Krasnov GS, Dmitriev AA, Melnikova NV. Development and Complex Application of Methods for the Identification of Mutations in the FAD3A and FAD3B Genes Resulting in the Reduced Content of Linolenic Acid in Flax Oil. PLANTS (BASEL, SWITZERLAND) 2022; 12:95. [PMID: 36616223 PMCID: PMC9824437 DOI: 10.3390/plants12010095] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 12/14/2022] [Accepted: 12/16/2022] [Indexed: 06/17/2023]
Abstract
Flax is grown worldwide for seed and fiber production. Linseed varieties differ in their oil composition and are used in pharmaceutical, food, feed, and industrial production. The field of application primarily depends on the content of linolenic (LIN) and linoleic (LIO) fatty acids. Inactivating mutations in the FAD3A and FAD3B genes lead to a decrease in the LIN content and an increase in the LIO content. For the identification of the three most common low-LIN mutations in flax varieties (G-to-A in exon 1 of FAD3A substituting tryptophan with a stop codon, C-to-T in exon 5 of FAD3A leading to arginine to a stop codon substitution, and C-to-T in exon 2 of FAD3B resulting in histidine to tyrosine substitution), three approaches were proposed: (1) targeted deep sequencing, (2) high resolution melting (HRM) analysis, (3) cleaved amplified polymorphic sequences (CAPS) markers. They were tested on more than a thousand flax samples of various types and showed promising results. The proposed approaches can be used in marker-assisted selection to choose parent pairs for crosses, separate heterogeneous varieties into biotypes, and select genotypes with desired homozygous alleles of the FAD3A and FAD3B genes at the early stages of breeding for the effective development of varieties with a particular LIN and LIO content, as well as in basic studies of the molecular mechanisms of fatty acid synthesis in flax seeds to select genotypes adequate to the tasks.
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Affiliation(s)
- Liubov V. Povkhova
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia
| | - Elena N. Pushkova
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia
| | - Tatiana A. Rozhmina
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia
- Federal Research Center for Bast Fiber Crops, 172002 Torzhok, Russia
| | - Alexander A. Zhuchenko
- Federal Research Center for Bast Fiber Crops, 172002 Torzhok, Russia
- All-Russian Horticultural Institute for Breeding, Agrotechnology and Nursery, 115598 Moscow, Russia
| | - Roman I. Frykin
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia
- Faculty of Biology, Lomonosov Moscow State University, 119234 Moscow, Russia
| | - Roman O. Novakovskiy
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia
| | - Ekaterina M. Dvorianinova
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia
- Moscow Institute of Physics and Technology, 141701 Moscow, Russia
| | - Aleksey A. Gryzunov
- All-Russian Scientific Research Institute of Refrigeration Industry—Branch of V.M. Gorbatov Federal Research Center for Food Systems of Russian Academy of Sciences, 127422 Moscow, Russia
| | - Elena V. Borkhert
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia
| | - Elizaveta A. Sigova
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia
- Moscow Institute of Physics and Technology, 141701 Moscow, Russia
| | | | - Anastasiya V. Snezhkina
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia
| | - Anna V. Kudryavtseva
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia
| | - George S. Krasnov
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia
| | - Alexey A. Dmitriev
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia
| | - Nataliya V. Melnikova
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia
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Hajiahmadi Z, Abedi A, Wei H, Sun W, Ruan H, Zhuge Q, Movahedi A. Identification, evolution, expression, and docking studies of fatty acid desaturase genes in wheat (Triticum aestivum L.). BMC Genomics 2020; 21:778. [PMID: 33167859 PMCID: PMC7653692 DOI: 10.1186/s12864-020-07199-1] [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: 04/27/2020] [Accepted: 10/27/2020] [Indexed: 12/28/2022] Open
Abstract
Backgrounds Fatty acid desaturases (FADs) introduce a double bond into the fatty acids acyl chain resulting in unsaturated fatty acids that have essential roles in plant development and response to biotic and abiotic stresses. Wheat germ oil, one of the important by-products of wheat, can be a good alternative for edible oils with clinical advantages due to the high amount of unsaturated fatty acids. Therefore, we performed a genome-wide analysis of the wheat FAD gene family (TaFADs). Results 68 FAD genes were identified from the wheat genome. Based on the phylogenetic analysis, wheat FADs clustered into five subfamilies, including FAB2, FAD2/FAD6, FAD4, DES/SLD, and FAD3/FAD7/FAD8. The TaFADs were distributed on chromosomes 2A-7B with 0 to 10 introns. The Ka/Ks ratio was less than one for most of the duplicated pair genes revealed that the function of the genes had been maintained during the evolution. Several cis-acting elements related to hormones and stresses in the TaFADs promoters indicated the role of these genes in plant development and responses to environmental stresses. Likewise, 72 SSRs and 91 miRNAs in 36 and 47 TaFADs have been identified. According to RNA-seq data analysis, the highest expression in all developmental stages and tissues was related to TaFAB2.5, TaFAB2.12, TaFAB2.15, TaFAB2.17, TaFAB2.20, TaFAD2.1, TaFAD2.6, and TaFAD2.8 genes while the highest expression in response to temperature stress was related to TaFAD2.6, TaFAD2.8, TaFAB2.15, TaFAB2.17, and TaFAB2.20. Furthermore, docking simulations revealed several residues in the active site of TaFAD2.6 and TaFAD2.8 in close contact with the docked oleic acid that could be useful in future site-directed mutagenesis studies to increase the catalytic efficiency of them and subsequently improve agronomic quality and tolerance of wheat against environmental stresses. Conclusions This study provides comprehensive information that can lead to the detection of candidate genes for wheat genetic modification. Supplementary Information The online version contains supplementary material available at 10.1186/s12864-020-07199-1.
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Affiliation(s)
- Zahra Hajiahmadi
- Department of Agricultural Biotechnology, Faculty of Agricultural Sciences, University of Guilan, Rasht, 4199613776, Iran
| | - Amin Abedi
- Department of Agricultural Biotechnology, Faculty of Agricultural Sciences, University of Guilan, Rasht, 4199613776, Iran
| | - Hui Wei
- Co-Innovation Center for Sustainable Forestry in Southern China, Key Laboratory of Forest Genetics & Biotechnology, Ministry of Education, Nanjing Forestry University, Nanjing, 210037, China
| | - Weibo Sun
- Co-Innovation Center for Sustainable Forestry in Southern China, Key Laboratory of Forest Genetics & Biotechnology, Ministry of Education, Nanjing Forestry University, Nanjing, 210037, China
| | - Honghua Ruan
- Co-Innovation Center for Sustainable Forestry in Southern China, Key Laboratory of Forest Genetics & Biotechnology, Ministry of Education, Nanjing Forestry University, Nanjing, 210037, China
| | - Qiang Zhuge
- Co-Innovation Center for Sustainable Forestry in Southern China, Key Laboratory of Forest Genetics & Biotechnology, Ministry of Education, Nanjing Forestry University, Nanjing, 210037, China
| | - Ali Movahedi
- Co-Innovation Center for Sustainable Forestry in Southern China, Key Laboratory of Forest Genetics & Biotechnology, Ministry of Education, Nanjing Forestry University, Nanjing, 210037, China.
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Dmitriev AA, Kezimana P, Rozhmina TA, Zhuchenko AA, Povkhova LV, Pushkova EN, Novakovskiy RO, Pavelek M, Vladimirov GN, Nikolaev EN, Kovaleva OA, Kostyukevich YI, Chagovets VV, Romanova EV, Snezhkina AV, Kudryavtseva AV, Krasnov GS, Melnikova NV. Genetic diversity of SAD and FAD genes responsible for the fatty acid composition in flax cultivars and lines. BMC PLANT BIOLOGY 2020; 20:301. [PMID: 33050879 PMCID: PMC7557025 DOI: 10.1186/s12870-020-02499-w] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Accepted: 06/15/2020] [Indexed: 06/02/2023]
Abstract
BACKGROUND Flax (Linum usitatissimum L.) is grown for fiber and seed in many countries. Flax cultivars differ in the oil composition and, depending on the ratio of fatty acids, are used in pharmaceutical, food, or paint industries. It is known that genes of SAD (stearoyl-ACP desaturase) and FAD (fatty acid desaturase) families play a key role in the synthesis of fatty acids, and some alleles of these genes are associated with a certain composition of flax oil. However, data on genetic polymorphism of these genes are still insufficient. RESULTS On the basis of the collection of the Institute for Flax (Torzhok, Russia), we formed a representative set of 84 cultivars and lines reflecting the diversity of fatty acid composition of flax oil. An approach for the determination of full-length sequences of SAD1, SAD2, FAD2A, FAD2B, FAD3A, and FAD3B genes using the Illumina platform was developed and deep sequencing of the 6 genes in 84 flax samples was performed on MiSeq. The obtained high coverage (about 400x on average) enabled accurate assessment of polymorphisms in SAD1, SAD2, FAD2A, FAD2B, FAD3A, and FAD3B genes and evaluation of cultivar/line heterogeneity. The highest level of genetic diversity was observed for FAD3A and FAD3B genes - 91 and 62 polymorphisms respectively. Correlation analysis revealed associations between particular variants in SAD and FAD genes and predominantly those fatty acids whose conversion they catalyze: SAD - stearic and oleic acids, FAD2 - oleic and linoleic acids, FAD3 - linoleic and linolenic acids. All except one low-linolenic flax cultivars/lines contained both the substitution of tryptophan to stop codon in the FAD3A gene and histidine to tyrosine substitution in the FAD3B gene, while samples with only one of these polymorphisms had medium content of linolenic acid and cultivars/lines without them were high-linolenic. CONCLUSIONS Genetic polymorphism of SAD and FAD genes was evaluated in the collection of flax cultivars and lines with diverse oil composition, and associations between particular polymorphisms and the ratio of fatty acids were revealed. The achieved results are the basis for the development of marker-assisted selection and DNA-based certification of flax cultivars.
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Affiliation(s)
- Alexey A Dmitriev
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia
| | - Parfait Kezimana
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia
- Peoples' Friendship University of Russia (RUDN University), Moscow, Russia
| | - Tatiana A Rozhmina
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia
- Federal Research Center for Bast Fiber Crops, Torzhok, Russia
| | - Alexander A Zhuchenko
- Federal Research Center for Bast Fiber Crops, Torzhok, Russia
- All-Russian Horticultural Institute for Breeding, Agrotechnology and Nursery, Moscow, Russia
| | - Liubov V Povkhova
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia
- Moscow Institute of Physics and Technology, Dolgoprudny, Russia
| | - Elena N Pushkova
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia
| | - Roman O Novakovskiy
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia
| | | | | | | | | | | | - Vitaliy V Chagovets
- Kulakov National Medical Research Center for Obstetrics, Gynecology and Perinatology, Ministry of Healthcare of the Russian Federation, Moscow, Russia
| | - Elena V Romanova
- Peoples' Friendship University of Russia (RUDN University), Moscow, Russia
| | | | - Anna V Kudryavtseva
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia
| | - George S Krasnov
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia
| | - Nataliya V Melnikova
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia.
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Wang M, Gao L, Li G, Zhou C, Jian J, Xing Z, Wang Y, Zhang W, Song Z, Hu Y, Yang J. Interspecific Variation in the Unsaturation Level of Seed Oils Were Associated With the Expression Pattern Shifts of Duplicated Desaturase Genes and the Potential Role of Other Regulatory Genes. FRONTIERS IN PLANT SCIENCE 2020; 11:616338. [PMID: 33519875 PMCID: PMC7838364 DOI: 10.3389/fpls.2020.616338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Accepted: 12/22/2020] [Indexed: 05/08/2023]
Abstract
Seed oils are of great economic importance both for human consumption and industrial applications. The nutritional quality and industrial value of seed oils are mostly determined by their fatty acid profiles, especially the relative proportions of unsaturated fatty acids. Tree peony seed oils have recently been recognized as novel edible oils enriched in α-linolenic acid (ALA). However, congeneric species, such as Paeonia ostii and P. ludlowii, showed marked variation in the relative proportions of different unsaturated fatty acids. By comparing the dynamics of fatty acid accumulation and the time-course gene expression patterns between P. ostii and P. ludlowii, we identified genes that were differentially expressed between two species in developing seeds, and showed congruent patterns of variation between expression levels and phenotypes. In addition to the well-known desaturase and acyltransferase genes associated with fatty acid desaturation, among them were some genes that were conservatively co-expressed with the desaturation pathway genes across phylogenetically distant ALA-rich species, including Camelina sativa and Perilla frutescens. Go enrichment analysis revealed that these genes were mainly involved in transcriptional regulation, protein post-translational modification and hormone biosynthesis and response, suggesting that the fatty acid synthesis and desaturation pathway might be subject to multiple levels of regulation.
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Affiliation(s)
- Mengli Wang
- Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering, Institute of Eco-Chongming (IEC), Fudan University, Shanghai, China
| | - Lexuan Gao
- Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, China
| | - Gengyun Li
- Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering, Institute of Eco-Chongming (IEC), Fudan University, Shanghai, China
| | - Chengchuan Zhou
- Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering, Institute of Eco-Chongming (IEC), Fudan University, Shanghai, China
| | - Jinjing Jian
- Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering, Institute of Eco-Chongming (IEC), Fudan University, Shanghai, China
| | - Zhen Xing
- Tibet Agricultural and Animal Husbandry University, Linzhi, China
| | - Yuguo Wang
- Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering, Institute of Eco-Chongming (IEC), Fudan University, Shanghai, China
| | - Wenju Zhang
- Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering, Institute of Eco-Chongming (IEC), Fudan University, Shanghai, China
| | - Zhiping Song
- Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering, Institute of Eco-Chongming (IEC), Fudan University, Shanghai, China
| | - Yonghong Hu
- Shanghai Key Laboratory of Plant Functional Genomics and Resources, Shanghai Chenshan Botanical Garden, Shanghai, China
- *Correspondence: Yonghong Hu,
| | - Ji Yang
- Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering, Institute of Eco-Chongming (IEC), Fudan University, Shanghai, China
- Shanghai Key Laboratory of Plant Functional Genomics and Resources, Shanghai Chenshan Botanical Garden, Shanghai, China
- *Correspondence: Yonghong Hu,
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