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Zhan Y, Liu H, Cao Z, Qi J, Bai L, Pan L. Target-site and non-target-site resistance mechanisms confer mesosulfuron-methyl resistance in Alopecurus aequalis. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 210:108597. [PMID: 38598868 DOI: 10.1016/j.plaphy.2024.108597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Revised: 03/29/2024] [Accepted: 04/02/2024] [Indexed: 04/12/2024]
Abstract
BACKGROUND Shortawn foxtail (Alopecurus aequalis Sobol.) is a noxious weed in China. The resistance of A. aequalis developed rapidly due to the long-term application of acetolactate synthase (ALS)-inhibiting herbicides. Here, a suspected mesosulfuron-methyl-resistant A. aequalis population, Aa-R, was collected from a wheat field in China. RESULTS A dose‒response test showed that the Aa-R population has evolved a high level of resistance to mesosulfuron-methyl, and its growth was suppressed by imazamox, pyroxsulam and bispyribac-sodium. ALS gene sequence analysis revealed that a known resistance-related mutation (Pro-197-Thr) was present in the Aa-R population. Moreover, ALS gene overexpression was detected in the Aa-R population. The mesosulfuron-methyl resistance could be reversed by cytochrome P450 monooxygenase (CYP450) and glutathione S-transferase (GST) inhibitors. In addition, enhanced metabolism of mesosulfuron-methyl was detected in the Aa-R population compared with the susceptible population. NADPH-cytochrome P450 reductase and GST activities were strongly inducible in the Aa-R population. One CYP450 gene, CYP74A2, and one GST gene, GST4, were constitutively upregulated in the Aa-R population. Molecular docking results showed the binding affinity of CYP74A2 and GST4 for the tested ALS-inhibiting herbicides, respectively. CONCLUSION This study confirmed that target-site resistance and non-target-site resistance involving CYP450 and GST were the main mechanisms involved in resistance in the mesosulfuron-methyl-resistant A. aequalis population.
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Affiliation(s)
- You Zhan
- College of Plant Protection, Hunan Agricultural University, Changsha, 410128, China
| | - Haozhe Liu
- College of Plant Protection, Hunan Agricultural University, Changsha, 410128, China
| | - Ziheng Cao
- College of Plant Protection, Hunan Agricultural University, Changsha, 410128, China
| | - Jiale Qi
- College of Plant Protection, Hunan Agricultural University, Changsha, 410128, China
| | - Lianyang Bai
- College of Plant Protection, Hunan Agricultural University, Changsha, 410128, China.
| | - Lang Pan
- College of Plant Protection, Hunan Agricultural University, Changsha, 410128, China.
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Fan X, Tang H, Chen X, Zeng F, Chen G, Chen ZH, Qin Y, Deng F. Allene oxide synthase 1 contributes to limiting grain arsenic accumulation and seedling detoxification in rice. STRESS BIOLOGY 2023; 3:52. [PMID: 38032410 PMCID: PMC10689621 DOI: 10.1007/s44154-023-00136-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Accepted: 11/07/2023] [Indexed: 12/01/2023]
Abstract
Arsenic (As) is a cancerogenic metalloid ubiquitously distributed in the environment, which can be easily accumulated in food crops like rice. Jasmonic acid (JA) and its derivatives play critical roles in plant growth and stress response. However, the role of endogenous JA in As accumulation and detoxification is still poorly understood. In this study, we found that JA biosynthesis enzymes Allene Oxide Synthases, OsAOS1 and OsAOS2, regulate As accumulation and As tolerance in rice. Evolutionary bioinformatic analysis indicated that AOS1 and AOS2 have evolved from streptophyte algae (e.g. the basal lineage Klebsormidium flaccidum) - sister clade of land plants. Compared to other two AOSs, OsAOS1 and OsAOS2 were highly expressed in all examined rice tissues and their transcripts were highly induced by As in root and shoot. Loss-of-function of OsAOS1 (osaos1-1) showed elevated As concentration in grains, which was likely attributed to the increased As translocation from root to shoot when the plants were subjected to arsenate [As(V)] but not arsenite [As (III)]. However, the mutation of OsAOS2 (osaos2-1) showed no such effect. Moreover, osaos1-1 and osaos2-1 increased the sensitivity of rice plants to both As(V) and As(III). Disrupted expression of genes involved in As accumulation and detoxification, such as OsPT4, OsNIP3;2, and OsOASTL-A1, was observed in both osaos1-1 and osaos2-1 mutant lines. In addition, a As(V)-induced significant decrease in Reactive Oxygen Species (ROS) production was observed in the root of osaos1-1 but not in osaos2-1. Taken together, our results indicate OsAOS1 modulates both As allocation and detoxification, which could be partially attributed to the altered gene expression profiling and ROS homeostasis in rice while OsAOS2 is important for As tolerance.
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Affiliation(s)
- Xin Fan
- MARA Key Laboratory of Sustainable Crop Production in the Middle Reaches of the Yangtze River, College of Agriculture, Yangtze University, Jingzhou, 434025, China
| | - Haiyang Tang
- MARA Key Laboratory of Sustainable Crop Production in the Middle Reaches of the Yangtze River, College of Agriculture, Yangtze University, Jingzhou, 434025, China
| | - Xuan Chen
- MARA Key Laboratory of Sustainable Crop Production in the Middle Reaches of the Yangtze River, College of Agriculture, Yangtze University, Jingzhou, 434025, China
| | - Fanrong Zeng
- MARA Key Laboratory of Sustainable Crop Production in the Middle Reaches of the Yangtze River, College of Agriculture, Yangtze University, Jingzhou, 434025, China
| | - Guang Chen
- Central Laboratory, Zhejiang Academy of Agricultural Science, Hangzhou, China
| | - Zhong-Hua Chen
- School of Science, Western Sydney University, Penrith, NSW, Australia
- Hawkesbury Institute for the Environment, Western Sydney University, Penrith, NSW, Australia
| | - Yuan Qin
- MARA Key Laboratory of Sustainable Crop Production in the Middle Reaches of the Yangtze River, College of Agriculture, Yangtze University, Jingzhou, 434025, China.
| | - Fenglin Deng
- MARA Key Laboratory of Sustainable Crop Production in the Middle Reaches of the Yangtze River, College of Agriculture, Yangtze University, Jingzhou, 434025, China.
- Hubei Hongshan Laboratory, Wuhan, 430070, China.
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Identification of the key genes contributing to the LOX-HPL volatile aldehyde biosynthesis pathway in jujube fruit. Int J Biol Macromol 2022; 222:285-294. [PMID: 36150569 DOI: 10.1016/j.ijbiomac.2022.09.155] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2022] [Revised: 09/05/2022] [Accepted: 09/15/2022] [Indexed: 11/23/2022]
Abstract
Jujube (Ziziphus jujuba Mill.) is a traditional popular fruit widely grown in China. The volatiles in jujube determine its unique flavor and the high fruit quality required by consumers. However, the biosynthesis of volatiles in jujube were remain unknown. By using gas chromatography-mass spectrometry, there were 46 volatile compounds were identified and determined from three representative jujube fruit types at six developmental stages, including the dry-used (Z. jujuba cv. 'Junzao'), the fresh-used (Z. jujuba cv. 'Dongzao'), and wild jujube (Z. jujuba var. spinosa Hu. cv. 'Qingjiansuanzao'). The aldehydes were identified as major volatile contributors to flavor, of which (E)-2-hexenal was the primary volatile in jujube fruit. Then LOX and HPL gene family were identified in jujube, which were involved in aldehyde biosynthesis through the lipoxygenase-hydroperoxide lyase (LOX-HPL) pathway. Gene expression analysis suggested that ZjLOX3, ZjLOX4, and ZjHPL1 were highly correlated with the accumulation of (E)-2-hexenal, and their proteins were localized to the nucleus and cytoplasm. Transient over-expression of ZjLOX3, ZjLOX4, and ZjHPL1 in jujube fruit significantly enhanced the accumulation of (E)-2-hexenal. Our study provides valuable information on the major volatiles and their biosynthesis in different types of jujube fruit. These results will help determine flavor improvements for future breeding.
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Gallé Á, Czékus Z, Tóth L, Galgóczy L, Poór P. Pest and disease management by red light. PLANT, CELL & ENVIRONMENT 2021; 44:3197-3210. [PMID: 34191305 DOI: 10.1111/pce.14142] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2021] [Revised: 06/22/2021] [Accepted: 06/25/2021] [Indexed: 05/22/2023]
Abstract
Light is essential for plant life. It provides a source of energy through photosynthesis and regulates plant growth and development and other cellular processes, such as by controlling the endogenous circadian clock. Light intensity, quality, duration and timing are all important determinants of plant responses, especially to biotic stress. Red light can positively influence plant defence mechanisms against different pathogens, but the molecular mechanism behind this phenomenon is not fully understood. Therefore, we reviewed the impact of red light on plant biotic stress responses against viruses, bacteria, fungi and nematodes, with a focus on the physiological effects of red light treatment and hormonal crosstalk under biotic stress in plants. We found evidence suggesting that exposing plants to red light increases levels of salicylic acid (SA) and induces SA signalling mediating the production of reactive oxygen species, with substantial differences between species and plant organs. Such changes in SA levels could be vital for plants to survive infections. Therefore, the application of red light provides a multidimensional aspect to developing innovative and environmentally friendly approaches to plant and crop disease management.
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Affiliation(s)
- Ágnes Gallé
- Department of Plant Biology, University of Szeged, Szeged, Hungary
| | - Zalán Czékus
- Department of Plant Biology, University of Szeged, Szeged, Hungary
| | - Liliána Tóth
- Department of Biotechnology, University of Szeged, Szeged, Hungary
- Institute of Plant Biology, Biological Research Centre, Eötvös Loránd Research Network, Szeged, Hungary
| | - László Galgóczy
- Department of Biotechnology, University of Szeged, Szeged, Hungary
- Institute of Plant Biology, Biological Research Centre, Eötvös Loránd Research Network, Szeged, Hungary
| | - Péter Poór
- Department of Plant Biology, University of Szeged, Szeged, Hungary
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Guang Y, Luo S, Ahammed GJ, Xiao X, Li J, Zhou Y, Yang Y. The OPR gene family in watermelon: Genome-wide identification and expression profiling under hormone treatments and root-knot nematode infection. PLANT BIOLOGY (STUTTGART, GERMANY) 2021; 23 Suppl 1:80-88. [PMID: 33275831 DOI: 10.1111/plb.13225] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Revised: 11/10/2020] [Accepted: 11/26/2020] [Indexed: 05/26/2023]
Abstract
The enzyme 12-oxo-phytodienoic acid reductase (OPR) is important in the jasmonic acid (JA) biosynthesis pathway and thus plays a vital role in plant defence. However, systematic and comprehensive analyses of OPR genes in watermelon and their roles in defence responses are extremely limited. The physicochemical properties, phylogenetic tree, gene structure and cis-acting elements of watermelon OPR genes were analysed using bioinformatics, and qRT-PCR and RNA-Seq were applied to assay expression of OPR genes in watermelon. A total of five OPR family genes were identified in watermelon, which were unevenly distributed across the four chromosomes. Phylogenetic analysis assigned OPR members from different plant species to five subfamilies (OPRI-OPRV). The motif compositions of OPR members were relatively conserved. Expression analysis using qRT-PCR revealed that ClOPR genes, except for ClOPR5, were highly expressed in the flower and fruit. RNA-seq analysis showed that the ClOPR genes had different expression patterns during flesh and rind development. Furthermore, the ClOPR genes, particularly ClOPR2 and ClOPR4, were significantly upregulated by exogenous JA, salicylic acid (SA) and ethylene (ET) treatments. In addition, red light induced expression of ClOPR2 and ClOPR4 in leaves and roots of root-knot nematode (RKN)-infected watermelon plants, suggesting their involvement in red light-induced defence against RKN. These results provide a theoretical basis for elucidating the diverse functions of OPR family genes in watermelon.
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Affiliation(s)
- Y Guang
- Jiangxi Key Laboratory for Postharvest Technology and Nondestructive Testing of Fruits & Vegetables, Collaborative Innovation Center of Post-Harvest Key Technology and Quality Safety of Fruits and Vegetables, College of Agronomy, Jiangxi Agricultural University, Nanchang, 330045, China
| | - S Luo
- Jiangxi Key Laboratory for Postharvest Technology and Nondestructive Testing of Fruits & Vegetables, Collaborative Innovation Center of Post-Harvest Key Technology and Quality Safety of Fruits and Vegetables, College of Agronomy, Jiangxi Agricultural University, Nanchang, 330045, China
| | - G J Ahammed
- College of Horticulture and Plant Proection, Henan University of Science and Technology, Luoyang, 471023, China
| | - X Xiao
- Jiangxi Key Laboratory for Postharvest Technology and Nondestructive Testing of Fruits & Vegetables, Collaborative Innovation Center of Post-Harvest Key Technology and Quality Safety of Fruits and Vegetables, College of Agronomy, Jiangxi Agricultural University, Nanchang, 330045, China
| | - J Li
- Jiangxi Key Laboratory for Postharvest Technology and Nondestructive Testing of Fruits & Vegetables, Collaborative Innovation Center of Post-Harvest Key Technology and Quality Safety of Fruits and Vegetables, College of Agronomy, Jiangxi Agricultural University, Nanchang, 330045, China
| | - Y Zhou
- Jiangxi Engineering Laboratory for the Development and Utilization of Agricultural Microbial Resources, College of Bioscience and Bioengineering, Jiangxi Agricultural University, Nanchang, 330045, China
| | - Y Yang
- Jiangxi Key Laboratory for Postharvest Technology and Nondestructive Testing of Fruits & Vegetables, Collaborative Innovation Center of Post-Harvest Key Technology and Quality Safety of Fruits and Vegetables, College of Agronomy, Jiangxi Agricultural University, Nanchang, 330045, China
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Tiwari S, Verma N, Prasad SM, Singh VP. Cytokinin alleviates cypermethrin toxicity in Nostoc muscorum by involving nitric oxide: Regulation of exopolysaccharides secretion, PS II photochemistry and reactive oxygen species homeostasis. CHEMOSPHERE 2020; 259:127356. [PMID: 32650176 DOI: 10.1016/j.chemosphere.2020.127356] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Revised: 05/26/2020] [Accepted: 06/06/2020] [Indexed: 06/11/2023]
Abstract
Growth of the most important nitrogen fixing cyanobacterium Nostoc muscorum is reported to be badly affected by the application of insecticides. To overcome their damaging effects, several strategies are being used. Out of these, some works on kinetin (KN, a synthetic cytokinin) has been recognized that it can overcome toxicity of insecticides in cyanobacteria. Besides this, it is now known that every hormone needs certain second messengers such as nitric oxide (NO) for its action. But implication of NO in KN-mediated regulation of insecticide toxicity is yet to be investigated. Hence in the current study, we have investigated the possible involvement of NO in KN-mediated regulation of cypermethrin toxicity in the cyanobacterium Nostoc muscorum. Cypermethrin decreased growth of Nostoc muscorum which was accompanied by decreased pigment contents and altered photosystem II (PS II) photochemistry that resulted in inhibition of photosynthetic process but KN significantly ameliorated cypermethrin toxicity. Cypermethrin induced production of free radicals (in-vivo and in-vitro) and weakened defensive mechanism (enzymatic and non-enzymatic defense system) which was restored by KN. Further, the results revealed that NG-nitro-l-arginine methyl ester (l-NAME, an inhibitor of nitric oxide synthase) worsened the effect of cypermethrin toxicity even in the presence of KN while 2-4-carboxyphenyl-4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide (c-PTIO, a scavenger of NO) reversed KN-mediated amelioration even in the presence of sodium nitroprusside (SNP, an NO donor), suggesting that endogenous NO is required for mitigation of cypermethrin toxicity. Overall, our results first time show that endogenous NO is essential for KN-mediated mitigation of cypermethrin toxicity in the Nostoc muscorum.
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Affiliation(s)
- Santwana Tiwari
- Ranjan Plant Physiology and Biochemistry Laboratory, Department of Botany, University of Allahabad, Prayagraj, 211002, India
| | - Nidhi Verma
- Ranjan Plant Physiology and Biochemistry Laboratory, Department of Botany, University of Allahabad, Prayagraj, 211002, India
| | - Sheo Mohan Prasad
- Ranjan Plant Physiology and Biochemistry Laboratory, Department of Botany, University of Allahabad, Prayagraj, 211002, India.
| | - Vijay Pratap Singh
- Plant Physiology Laboratory, Department of Botany, C.M.P. Degree College, A Constituent Post Graduate College of University of Allahabad, Prayagraj, 211002, India.
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Xiong J, Liu L, Ma X, Li F, Tang C, Li Z, Lü B, Zhou T, Lian X, Chang Y, Tang M, Xie S, Lu X. Characterization of PtAOS1 Promoter and Three Novel Interacting Proteins Responding to Drought in Poncirus trifoliata. Int J Mol Sci 2020; 21:ijms21134705. [PMID: 32630273 PMCID: PMC7370134 DOI: 10.3390/ijms21134705] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 06/27/2020] [Accepted: 06/29/2020] [Indexed: 11/16/2022] Open
Abstract
Jasmonic acid (JA) plays a crucial role in various biological processes including development, signal transduction and stress response. Allene oxide synthase (AOS) catalyzing (13S)-hydroperoxyoctadecatrienoic acid (13-HPOT) to an unstable allene oxide is involved in the first step of JA biosynthesis. Here, we isolated the PtAOS1 gene and its promoter from trifoliate orange (Poncirus trifoliata). PtAOS1 contains a putative chloroplast targeting sequence in N-terminal and shows relative to pistachio (Pistacia vera) AOS. A number of stress-, light- and hormone-related cis-elements were found in the PtAOS1 promoter which may be responsible for the up-regulation of PtAOS1 under drought and JA treatments. Transient expression in tobacco (Nicotiana benthamiana) demonstrated that the P-532 (-532 to +1) fragment conferring drive activity was a core region in the PtAOS1 promoter. Using yeast one-hybrid, three novel proteins, PtDUF886, PtDUF1685 and PtRAP2.4, binding to P-532 were identified. The dual luciferase assay in tobacco illustrated that all three transcription factors could enhance PtAOS1 promoter activity. Genes PtDUF1685 and PtRAP2.4 shared an expression pattern which was induced significantly by drought stress. These findings should be available evidence for trifoliate orange responding to drought through JA modulation.
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Affiliation(s)
- Jiang Xiong
- Department of Horticulture, College of Horticulture, Hunan Agricultural University, Changsha 410128, China; (J.X.); (L.L.); (X.M.); (F.L.); (C.T.); (Z.L.); (B.L.); (T.Z.); (X.L.); (Y.C.); (M.T.); (S.X.)
- National Centre for Citrus Improvement, Changsha 410128, China
| | - Lian Liu
- Department of Horticulture, College of Horticulture, Hunan Agricultural University, Changsha 410128, China; (J.X.); (L.L.); (X.M.); (F.L.); (C.T.); (Z.L.); (B.L.); (T.Z.); (X.L.); (Y.C.); (M.T.); (S.X.)
- National Centre for Citrus Improvement, Changsha 410128, China
| | - Xiaochuan Ma
- Department of Horticulture, College of Horticulture, Hunan Agricultural University, Changsha 410128, China; (J.X.); (L.L.); (X.M.); (F.L.); (C.T.); (Z.L.); (B.L.); (T.Z.); (X.L.); (Y.C.); (M.T.); (S.X.)
- National Centre for Citrus Improvement, Changsha 410128, China
| | - Feifei Li
- Department of Horticulture, College of Horticulture, Hunan Agricultural University, Changsha 410128, China; (J.X.); (L.L.); (X.M.); (F.L.); (C.T.); (Z.L.); (B.L.); (T.Z.); (X.L.); (Y.C.); (M.T.); (S.X.)
- National Centre for Citrus Improvement, Changsha 410128, China
- Institute of Horticulture, Hunan Academy of Agricultural Science, Changsha 410125, China
| | - Chaolan Tang
- Department of Horticulture, College of Horticulture, Hunan Agricultural University, Changsha 410128, China; (J.X.); (L.L.); (X.M.); (F.L.); (C.T.); (Z.L.); (B.L.); (T.Z.); (X.L.); (Y.C.); (M.T.); (S.X.)
- National Centre for Citrus Improvement, Changsha 410128, China
| | - Zehang Li
- Department of Horticulture, College of Horticulture, Hunan Agricultural University, Changsha 410128, China; (J.X.); (L.L.); (X.M.); (F.L.); (C.T.); (Z.L.); (B.L.); (T.Z.); (X.L.); (Y.C.); (M.T.); (S.X.)
- National Centre for Citrus Improvement, Changsha 410128, China
| | - Biwen Lü
- Department of Horticulture, College of Horticulture, Hunan Agricultural University, Changsha 410128, China; (J.X.); (L.L.); (X.M.); (F.L.); (C.T.); (Z.L.); (B.L.); (T.Z.); (X.L.); (Y.C.); (M.T.); (S.X.)
- National Centre for Citrus Improvement, Changsha 410128, China
| | - Tie Zhou
- Department of Horticulture, College of Horticulture, Hunan Agricultural University, Changsha 410128, China; (J.X.); (L.L.); (X.M.); (F.L.); (C.T.); (Z.L.); (B.L.); (T.Z.); (X.L.); (Y.C.); (M.T.); (S.X.)
- National Centre for Citrus Improvement, Changsha 410128, China
| | - Xuefei Lian
- Department of Horticulture, College of Horticulture, Hunan Agricultural University, Changsha 410128, China; (J.X.); (L.L.); (X.M.); (F.L.); (C.T.); (Z.L.); (B.L.); (T.Z.); (X.L.); (Y.C.); (M.T.); (S.X.)
- National Centre for Citrus Improvement, Changsha 410128, China
| | - Yuanyuan Chang
- Department of Horticulture, College of Horticulture, Hunan Agricultural University, Changsha 410128, China; (J.X.); (L.L.); (X.M.); (F.L.); (C.T.); (Z.L.); (B.L.); (T.Z.); (X.L.); (Y.C.); (M.T.); (S.X.)
- National Centre for Citrus Improvement, Changsha 410128, China
| | - Mengjing Tang
- Department of Horticulture, College of Horticulture, Hunan Agricultural University, Changsha 410128, China; (J.X.); (L.L.); (X.M.); (F.L.); (C.T.); (Z.L.); (B.L.); (T.Z.); (X.L.); (Y.C.); (M.T.); (S.X.)
- National Centre for Citrus Improvement, Changsha 410128, China
| | - Shenxi Xie
- Department of Horticulture, College of Horticulture, Hunan Agricultural University, Changsha 410128, China; (J.X.); (L.L.); (X.M.); (F.L.); (C.T.); (Z.L.); (B.L.); (T.Z.); (X.L.); (Y.C.); (M.T.); (S.X.)
- National Centre for Citrus Improvement, Changsha 410128, China
| | - Xiaopeng Lu
- Department of Horticulture, College of Horticulture, Hunan Agricultural University, Changsha 410128, China; (J.X.); (L.L.); (X.M.); (F.L.); (C.T.); (Z.L.); (B.L.); (T.Z.); (X.L.); (Y.C.); (M.T.); (S.X.)
- National Centre for Citrus Improvement, Changsha 410128, China
- Correspondence: ; Tel./Fax: +86-0731-84618171
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