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Liu CF, Yang N, Teng RM, Li JW, Chen Y, Hu ZH, Li T, Zhuang J. Exogenous methyl jasmonate and cytokinin antagonistically regulate lignin biosynthesis by mediating CsHCT expression in Camellia sinensis. Protoplasma 2023; 260:869-884. [PMID: 36385311 DOI: 10.1007/s00709-022-01820-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Accepted: 11/07/2022] [Indexed: 06/16/2023]
Abstract
Tea plant, an important beverage crop, is cultivated worldwide. Lignification can improve the hardness of tea plant, which is of great significance for tea quality. Jasmonates (JAs) and cytokinin are plant hormones that control processes of plant development and secondary metabolite accumulation. Hydroxycinnamoyl-CoA shikimate/quinate hydroxycinnamoyl transferase (HCT) is primarily involved in lignin biosynthesis. The effects of exogenous application of JAs and cytokinin on lignin biosynthesis and related HCT gene expression profiles in tea plants are still unclear. In order to investigate the effects of exogenous JAs and cytokinin on lignin accumulation, anatomical structures, and CsHCT gene profiles in tea plants, we treated tea plants with methyl jasmonate (MeJA) and cytokinin (6-BA). MeJA and 6-BA treatments triggered the lignification at 6 and 12 d in tea leaves. The combined treatment resulted in an increase in lignin content at 6 d, which was 1.32 times of that at 0 d for 'Mengshan 9.' The CsHCTs in clade 2 (CsHCT5, CsHCT6, CsHCT7, and CsHCT8) were mainly expressed in leaves. We found that exogenous MeJA and cytokinin might be able to antagonistically regulate tea plant lignin accumulation through the mediation of CsHCT expression. This study revealed that HCTs play potential important roles involved in lignin biosynthesis of tea plant development and hormonal stimuli.
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Affiliation(s)
- Chun-Fang Liu
- Tea Science Research Institute, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Ni Yang
- Tea Science Research Institute, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Rui-Min Teng
- Tea Science Research Institute, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Jing-Wen Li
- Tea Science Research Institute, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Yi Chen
- Tea Science Research Institute, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Zhi-Hang Hu
- Tea Science Research Institute, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Tong Li
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, 210095, China
| | - Jing Zhuang
- Tea Science Research Institute, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, China.
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Sun N, Hu J, Li C, Wang X, Gai Y, Jiang X. Fusion gene 4CL-CCR promotes lignification in tobacco suspension cells. Plant Cell Rep 2023; 42:939-952. [PMID: 36964306 DOI: 10.1007/s00299-023-03002-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Accepted: 03/03/2023] [Indexed: 05/06/2023]
Abstract
KEY MESSAGE The fusion gene 4CL-CCR promotes lignification and activates lignin-related MYB expression in tobacco but inhibits auxin-related gene expression and hinders the auxin absorption of cells. Given the importance of lignin polymers in plant growth and their industrial value, it is necessary to investigate how plants synthesize monolignols and regulate the level of lignin in cell walls. In our previous study, expression of the Populus tomentosa fusion gene 4CL-CCR significantly promoted the production of 4-hydroxycinnamyl alcohols. However, the function of 4CL-CCR in organisms remains poorly understood. In this study, the fusion gene 4CL-CCR was heterologously expressed in tobacco suspension cells. We found that the transgenic suspension cells exhibited lignification earlier. Furthermore, 4CL-CCR significantly reduced the content of phenolic acids and increased the content of aldehydes in the medium, which led to an increase in lignin deposition. Moreover, transcriptome results showed that the genes related to lignin synthesis, such as PAL, 4CL, CCoAOMT and CAD, were significantly upregulated in the 4CL-CCR group. The expression of genes related to auxin, such as ARF3, ARF5 and ARF6, was significantly downregulated. The downregulation of auxin affected the expression of transcription factor MYBs. We hypothesize that the upregulated genes MYB306 and MYB315 are involved in the regulation of cell morphogenesis and lignin biosynthesis and eventually enhance lignification in tobacco suspension cells. Our findings provide insight into the function of 4CL-CCR in lignification and how secondary cell walls are formed in plants.
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Affiliation(s)
- Nan Sun
- State Key Laboratory of Tree Genetics and Breeding, College of Biological Sciences and Technology , Beijing Forestry University, Beijing, 100083, China
- The Tree and Ornamental Plant Breeding and Biotechnology Laboratory of National Forestry and Grassland Administration, Beijing, 100083, China
| | - Jiaqi Hu
- State Key Laboratory of Tree Genetics and Breeding, College of Biological Sciences and Technology , Beijing Forestry University, Beijing, 100083, China
- The Tree and Ornamental Plant Breeding and Biotechnology Laboratory of National Forestry and Grassland Administration, Beijing, 100083, China
| | - Can Li
- State Key Laboratory of Tree Genetics and Breeding, College of Biological Sciences and Technology , Beijing Forestry University, Beijing, 100083, China
- The Tree and Ornamental Plant Breeding and Biotechnology Laboratory of National Forestry and Grassland Administration, Beijing, 100083, China
| | - Xuechun Wang
- State Key Laboratory of Tree Genetics and Breeding, College of Biological Sciences and Technology , Beijing Forestry University, Beijing, 100083, China
- The Tree and Ornamental Plant Breeding and Biotechnology Laboratory of National Forestry and Grassland Administration, Beijing, 100083, China
| | - Ying Gai
- State Key Laboratory of Tree Genetics and Breeding, College of Biological Sciences and Technology , Beijing Forestry University, Beijing, 100083, China.
- The Tree and Ornamental Plant Breeding and Biotechnology Laboratory of National Forestry and Grassland Administration, Beijing, 100083, China.
| | - Xiangning Jiang
- State Key Laboratory of Tree Genetics and Breeding, College of Biological Sciences and Technology , Beijing Forestry University, Beijing, 100083, China.
- The Tree and Ornamental Plant Breeding and Biotechnology Laboratory of National Forestry and Grassland Administration, Beijing, 100083, China.
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Zhao B, Zhou Y, Jiao X, Wang X, Wang B, Yuan F. Bracelet salt glands of the recretohalophyte Limonium bicolor: Distribution, morphology, and induction. J Integr Plant Biol 2023; 65:950-966. [PMID: 36453195 DOI: 10.1111/jipb.13417] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Accepted: 11/27/2022] [Indexed: 06/17/2023]
Abstract
Halophytes complete their life cycles in saline environments. The recretohalophyte Limonium bicolor has evolved a specialized salt secretory structure, the salt gland, which excretes Na+ to avoid salt damage. Typical L. bicolor salt glands consist of 16 cells with four fluorescent foci and four secretory pores. Here, we describe a special type of salt gland at the base of the L. bicolor leaf petiole named bracelet salt glands due to their beaded-bracelet-like shape of blue auto-fluorescence. Bracelet salt glands contain more than 16 cells and more than four secretory pores. Leaf disc secretion measurements and non-invasive micro-test techniques indicated that bracelet salt glands secrete more salt than normal salt glands, which helps maintain low Na+ levels at the leaf blade to protect the leaf. Cytokinin treatment induced bracelet salt gland differentiation, and the developed ones showed no further differentiation when traced with a living fluorescence microscopy imager, even though new salt gland development and leaf expansion were observed. Transcriptome revealed a NAC transcription factor gene that participates in bracelet salt gland development, as confirmed by its genome editing and overexpression in L. bicolor. These findings shed light on bracelet salt gland development and may facilitate the engineering of salt-tolerant crops.
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Affiliation(s)
- Boqing Zhao
- Shandong Provincial Key Laboratory of Plant Stress, College of Life Sciences, Shandong Normal University, Ji'nan, 250014, China
| | - Yingli Zhou
- Shandong Provincial Key Laboratory of Plant Stress, College of Life Sciences, Shandong Normal University, Ji'nan, 250014, China
| | - Xiangmei Jiao
- Shandong Provincial Key Laboratory of Plant Stress, College of Life Sciences, Shandong Normal University, Ji'nan, 250014, China
| | - Xi Wang
- Shandong Provincial Key Laboratory of Plant Stress, College of Life Sciences, Shandong Normal University, Ji'nan, 250014, China
| | - Baoshan Wang
- Shandong Provincial Key Laboratory of Plant Stress, College of Life Sciences, Shandong Normal University, Ji'nan, 250014, China
| | - Fang Yuan
- Shandong Provincial Key Laboratory of Plant Stress, College of Life Sciences, Shandong Normal University, Ji'nan, 250014, China
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Liu Q, Xing Y, Pang X, Zhan K, Sun Y, Wang N, Hu X. Electrochemical immunosensor based on MOF for rapid detection of 6-benzyladenine in bean sprouts. J Food Compost Anal 2023. [DOI: 10.1016/j.jfca.2022.105003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Yu Q, Li J, Qin G, Liu C, Cao Z, Jia B, Xu Y, Li G, Yang Y, Su Y, Zhang H. Characterization of the ABC Transporter G Subfamily in Pomegranate and Function Analysis of PgrABCG14. Int J Mol Sci 2022; 23:11661. [PMID: 36232964 DOI: 10.3390/ijms231911661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2022] [Revised: 09/26/2022] [Accepted: 09/27/2022] [Indexed: 11/09/2022] Open
Abstract
ATP-binding cassette subfamily G (ABCG) proteins play important roles in plant growth and development by transporting metabolites across cell membranes. To date, the genetic characteristics and potential functions of pomegranate ABCG proteins (PgrABCGs) have remained largely unknown. In this study, we found that 47 PgrABCGs were divided into five groups according to a phylogenetic analysis; groups I, II, III, and IV members are half-size proteins, and group V members are full-size proteins. PgrABCG14, PgrABCG21, and PgrABCG47 were highly expressed in the inner seed coat but had very low expression levels in the outer seed coat, and the expression levels of these three PgrABCG genes in the inner seed coats of hard-seeded pomegranate ‘Dabenzi’ were higher than those of soft-seeded pomegranate ‘Tunisia’. In addition, the expression of these three PgrABCG genes was highly correlated with the expression of genes involved in lignin biosynthesis and hormone signaling pathways. The evolution of PgrABCG14 presents a highly similar trend to the origin and evolution of lignin biosynthesis during land plant evolution. Ectopic expression of PgrABCG14 in Arabidopsis promoted plant growth and lignin accumulation compared to wild type plants; meanwhile, the expression levels of lignin biosynthesis-related genes (CAD5, C4H, and Prx71) and cytokinin response marker genes (ARR5 and ARR15) were significantly upregulated in transgenic plants, which suggests the potential role of PgrABCG14 in promoting plant growth and lignin accumulation. Taken together, these findings not only provide insight into the characteristics and evolution of PgrABCGs, but also shed a light on the potential functions of PgrABCGs in seed hardness development.
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Zhang X, Liu D, Gao D, Zhao W, Du H, Qiu Z, Huang J, Wen P, Wang Y, Li Q, Wang W, Xu H, He J, Liu Y, Wan J. Cytokinin Confers Brown Planthopper Resistance by Elevating Jasmonic Acid Pathway in Rice. Int J Mol Sci 2022; 23:5946. [PMID: 35682620 PMCID: PMC9180265 DOI: 10.3390/ijms23115946] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Revised: 05/22/2022] [Accepted: 05/22/2022] [Indexed: 01/23/2023] Open
Abstract
Plants have evolved a sophisticated defense system that employs various hormone pathways to defend against attacks by insect pests. Cytokinin (CK) plays an important role in plant growth and stress tolerance, but the role of CKs in plant-insect interaction remains largely unclear. Here, we report that CKs act as a positive regulator in rice resistance against brown planthopper (BPH), a devastating insect pest of rice. We found that BPH feeding promotes CK biosynthesis and signaling in rice. Exogenous application of CKs significantly increased the rice resistance to BPH. Increasing endogenous CKs by knocking out cytokinin oxidase/dehydrogenase (OsCKXs) led to enhanced resistance to BPH. Moreover, the levels of the plant hormone jasmonic acid (JA) and the expression of JA-responsive genes were elevated by CK treatment and in OsCKXs knockout plants. Furthermore, JA-deficient mutant og1 was more susceptible to BPH, and CK-induced BPH resistance was suppressed in og1. These results indicate that CK-mediated BPH resistance is JA-dependent. Our findings provide the direct evidence for the novel role of CK in promoting insect resistance, and demonstrate that CK-induced insect resistance is JA-dependent. These results provide important guidance for effective pest management strategies in the future.
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Affiliation(s)
- Xiao Zhang
- State Key Laboratory for Crop Genetics & Germplasm Enhancement, Jiangsu Provincial Research Center of Plant Gene Editing Engineering, Nanjing Agricultural University, Weigang 1, Nanjing 210095, China; (X.Z.); (D.L.); (D.G.); (W.Z.); (H.D.); (Z.Q.); (J.H.); (P.W.); (Y.W.); (Q.L.); (W.W.); (H.X.); (J.H.)
| | - Daoming Liu
- State Key Laboratory for Crop Genetics & Germplasm Enhancement, Jiangsu Provincial Research Center of Plant Gene Editing Engineering, Nanjing Agricultural University, Weigang 1, Nanjing 210095, China; (X.Z.); (D.L.); (D.G.); (W.Z.); (H.D.); (Z.Q.); (J.H.); (P.W.); (Y.W.); (Q.L.); (W.W.); (H.X.); (J.H.)
| | - Dong Gao
- State Key Laboratory for Crop Genetics & Germplasm Enhancement, Jiangsu Provincial Research Center of Plant Gene Editing Engineering, Nanjing Agricultural University, Weigang 1, Nanjing 210095, China; (X.Z.); (D.L.); (D.G.); (W.Z.); (H.D.); (Z.Q.); (J.H.); (P.W.); (Y.W.); (Q.L.); (W.W.); (H.X.); (J.H.)
| | - Weining Zhao
- State Key Laboratory for Crop Genetics & Germplasm Enhancement, Jiangsu Provincial Research Center of Plant Gene Editing Engineering, Nanjing Agricultural University, Weigang 1, Nanjing 210095, China; (X.Z.); (D.L.); (D.G.); (W.Z.); (H.D.); (Z.Q.); (J.H.); (P.W.); (Y.W.); (Q.L.); (W.W.); (H.X.); (J.H.)
| | - Huaying Du
- State Key Laboratory for Crop Genetics & Germplasm Enhancement, Jiangsu Provincial Research Center of Plant Gene Editing Engineering, Nanjing Agricultural University, Weigang 1, Nanjing 210095, China; (X.Z.); (D.L.); (D.G.); (W.Z.); (H.D.); (Z.Q.); (J.H.); (P.W.); (Y.W.); (Q.L.); (W.W.); (H.X.); (J.H.)
| | - Zeyu Qiu
- State Key Laboratory for Crop Genetics & Germplasm Enhancement, Jiangsu Provincial Research Center of Plant Gene Editing Engineering, Nanjing Agricultural University, Weigang 1, Nanjing 210095, China; (X.Z.); (D.L.); (D.G.); (W.Z.); (H.D.); (Z.Q.); (J.H.); (P.W.); (Y.W.); (Q.L.); (W.W.); (H.X.); (J.H.)
| | - Jie Huang
- State Key Laboratory for Crop Genetics & Germplasm Enhancement, Jiangsu Provincial Research Center of Plant Gene Editing Engineering, Nanjing Agricultural University, Weigang 1, Nanjing 210095, China; (X.Z.); (D.L.); (D.G.); (W.Z.); (H.D.); (Z.Q.); (J.H.); (P.W.); (Y.W.); (Q.L.); (W.W.); (H.X.); (J.H.)
| | - Peizheng Wen
- State Key Laboratory for Crop Genetics & Germplasm Enhancement, Jiangsu Provincial Research Center of Plant Gene Editing Engineering, Nanjing Agricultural University, Weigang 1, Nanjing 210095, China; (X.Z.); (D.L.); (D.G.); (W.Z.); (H.D.); (Z.Q.); (J.H.); (P.W.); (Y.W.); (Q.L.); (W.W.); (H.X.); (J.H.)
| | - Yongsheng Wang
- State Key Laboratory for Crop Genetics & Germplasm Enhancement, Jiangsu Provincial Research Center of Plant Gene Editing Engineering, Nanjing Agricultural University, Weigang 1, Nanjing 210095, China; (X.Z.); (D.L.); (D.G.); (W.Z.); (H.D.); (Z.Q.); (J.H.); (P.W.); (Y.W.); (Q.L.); (W.W.); (H.X.); (J.H.)
| | - Qi Li
- State Key Laboratory for Crop Genetics & Germplasm Enhancement, Jiangsu Provincial Research Center of Plant Gene Editing Engineering, Nanjing Agricultural University, Weigang 1, Nanjing 210095, China; (X.Z.); (D.L.); (D.G.); (W.Z.); (H.D.); (Z.Q.); (J.H.); (P.W.); (Y.W.); (Q.L.); (W.W.); (H.X.); (J.H.)
| | - Wenhui Wang
- State Key Laboratory for Crop Genetics & Germplasm Enhancement, Jiangsu Provincial Research Center of Plant Gene Editing Engineering, Nanjing Agricultural University, Weigang 1, Nanjing 210095, China; (X.Z.); (D.L.); (D.G.); (W.Z.); (H.D.); (Z.Q.); (J.H.); (P.W.); (Y.W.); (Q.L.); (W.W.); (H.X.); (J.H.)
| | - Haosen Xu
- State Key Laboratory for Crop Genetics & Germplasm Enhancement, Jiangsu Provincial Research Center of Plant Gene Editing Engineering, Nanjing Agricultural University, Weigang 1, Nanjing 210095, China; (X.Z.); (D.L.); (D.G.); (W.Z.); (H.D.); (Z.Q.); (J.H.); (P.W.); (Y.W.); (Q.L.); (W.W.); (H.X.); (J.H.)
| | - Jun He
- State Key Laboratory for Crop Genetics & Germplasm Enhancement, Jiangsu Provincial Research Center of Plant Gene Editing Engineering, Nanjing Agricultural University, Weigang 1, Nanjing 210095, China; (X.Z.); (D.L.); (D.G.); (W.Z.); (H.D.); (Z.Q.); (J.H.); (P.W.); (Y.W.); (Q.L.); (W.W.); (H.X.); (J.H.)
| | - Yuqiang Liu
- State Key Laboratory for Crop Genetics & Germplasm Enhancement, Jiangsu Provincial Research Center of Plant Gene Editing Engineering, Nanjing Agricultural University, Weigang 1, Nanjing 210095, China; (X.Z.); (D.L.); (D.G.); (W.Z.); (H.D.); (Z.Q.); (J.H.); (P.W.); (Y.W.); (Q.L.); (W.W.); (H.X.); (J.H.)
| | - Jianmin Wan
- State Key Laboratory for Crop Genetics & Germplasm Enhancement, Jiangsu Provincial Research Center of Plant Gene Editing Engineering, Nanjing Agricultural University, Weigang 1, Nanjing 210095, China; (X.Z.); (D.L.); (D.G.); (W.Z.); (H.D.); (Z.Q.); (J.H.); (P.W.); (Y.W.); (Q.L.); (W.W.); (H.X.); (J.H.)
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, China
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Wang XJ, Luo Q, Li T, Meng PH, Pu YT, Liu JX, Zhang J, Liu H, Tan GF, Xiong AS. Origin, evolution, breeding, and omics of Apiaceae: a family of vegetables and medicinal plants. Hortic Res 2022; 9:uhac076. [PMID: 38239769 PMCID: PMC10795576 DOI: 10.1093/hr/uhac076] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Accepted: 03/17/2022] [Indexed: 01/22/2024]
Abstract
Many of the world's most important vegetables and medicinal crops, including carrot, celery, coriander, fennel, and cumin, belong to the Apiaceae family. In this review, we summarize the complex origins of Apiaceae and the current state of research on the family, including traditional and molecular breeding practices, bioactive compounds, medicinal applications, nanotechnology, and omics research. Numerous molecular markers, regulatory factors, and functional genes have been discovered, studied, and applied to improve vegetable and medicinal crops in Apiaceae. In addition, current trends in Apiaceae application and research are also briefly described, including mining new functional genes and metabolites using omics research, identifying new genetic variants associated with important agronomic traits by population genetics analysis and GWAS, applying genetic transformation, the CRISPR-Cas9 gene editing system, and nanotechnology. This review provides a reference for basic and applied research on Apiaceae vegetable and medicinal plants.
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Affiliation(s)
- Xiao-Jing Wang
- Key laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), Guizhou University, Guizhou 550025, China
| | - Qing Luo
- Institute of Horticulture, Guizhou Academy of Agricultural Sciences, Guizhou 550006, China
| | - Tong Li
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Ministry of Agriculture and Rural Affairs Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in East China, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
| | - Ping-Hong Meng
- Institute of Horticulture, Guizhou Academy of Agricultural Sciences, Guizhou 550006, China
| | - Yu-Ting Pu
- Key laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), Guizhou University, Guizhou 550025, China
| | - Jie-Xia Liu
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Ministry of Agriculture and Rural Affairs Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in East China, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
| | - Jian Zhang
- College of Agronomy, Jilin Agricultural University, Changchun 210095, China
| | - Hui Liu
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Ministry of Agriculture and Rural Affairs Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in East China, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
| | - Guo-Fei Tan
- Institute of Horticulture, Guizhou Academy of Agricultural Sciences, Guizhou 550006, China
| | - Ai-Sheng Xiong
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Ministry of Agriculture and Rural Affairs Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in East China, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
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