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Shi Y, Zhang Q, Wang L, Du Q, Ackah M, Guo P, Zheng D, Wu M, Zhao W. Functional Characterization of MaZIP4, a Gene Regulating Copper Stress Tolerance in Mulberry (Morus atropurpurea R.). Life (Basel) 2022; 12:life12091311. [PMID: 36143348 PMCID: PMC9505184 DOI: 10.3390/life12091311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Revised: 08/23/2022] [Accepted: 08/23/2022] [Indexed: 12/04/2022] Open
Abstract
ZIP4 (zinc transporter 4) plays important roles in transporting Cu2+ ions in plants, which may contribute to the maintenance of plant metal homeostasis in growth, plant development and normal physiological metabolism. However, ZIP4 transporters have not been described in mulberry and the exact function of ZIP4 transporters in regulating the homeostasis of Cu in mulberry remains unclear. In this study, a new ZIP4 gene (MaZIP4) was isolated and cloned from Morus atropurpurea R. Phylogenetic analysis of amino sequences suggested that the amino-acid sequence of the MaZIP4 protein shows high homology with other ZIP4 proteins of Morus notabilis, Trema orientale, Ziziphus jujube and Cannabis sativa. In addition, a MaZIP4 silenced line was successfully constructed using virus-induced gene silencing (VIGS). The analysis of MaZIP4 expression by quantitative real-time PCR in mulberry showed that the level of MaZIP4 expression increased with increasing Cu concentration until the Cu concentration reached 800 ppm. Relative to the blank (WT) and the negative controls, malondialdehyde (MDA) levels increased significantly and rose with increasing Cu concentration in the MaZIP4 silenced line, whereas the soluble protein and proline content, superoxide dismutase (SOD) and peroxidase (POD) activities of these transgenic plants were lower. These results indicated that MaZIP4 may play an important role in the resistance of mulberry to Cu stress.
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Fei Hu, Chen M, Zhang Y, Wang T, Ruixue Li. Molecular Characterization and Expression Patterns of Shabby-Related Kinase (MmSK) Gene of Mulberry (Morus multicaulis). RUSSIAN JOURNAL OF BIOORGANIC CHEMISTRY 2020. [DOI: 10.1134/s1068162020050192] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Li R, Hu F, Li B, Zhang Y, Chen M, Fan T, Wang T. Whole genome bisulfite sequencing methylome analysis of mulberry (Morus alba) reveals epigenome modifications in response to drought stress. Sci Rep 2020; 10:8013. [PMID: 32415195 PMCID: PMC7228953 DOI: 10.1038/s41598-020-64975-5] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Accepted: 04/24/2020] [Indexed: 01/09/2023] Open
Abstract
DNA methylation plays a significant role in many biological processes. Although some studies of DNA methylation have been performed in woody plant, none is known about the methylation patterns of mulberry (Morus alba). In this study, we performed whole genome bisulfite sequencing under drought stress to generate a methylated cytosines map and assessed the effects of the changes on gene expression combined with transcriptomics. We found that the percentage of methylated cytosines varied depending on the local sequence context (CG, CHG and CHH) and external treatment (control, CK; drought stress, DS). The methylation levels under DS were 8.64% higher than that of CK, and differences that were mainly due to the contribution of mCG (6.24%). Additionally, there were 3,243 different methylation and expression associated genes. In addition, methylated genes were enriched within GO subcategories including catalytic activity, cellular process, metabolic process, response to stimulus and regulation of biological process. This is the first study to comprehensively present methylation patterns in mulberry and reveal widespread DNA methylation changes in response to drought stress, which has the potential to enhance our understanding of links between DNA methylation and the modulation of gene expression in plants subjected to abiotic stresses.
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Affiliation(s)
- Ruixue Li
- Sericultural Research Institute, Anhui Academy of Agricultural Sciences, Hefei, Anhui, 230061, China
| | - Fei Hu
- Plant Protection and Agroproducts Safety Institute, Anhui Academy of Agricultural Sciences, Hefei, Anhui, 230031, China
| | - Bing Li
- Sericultural Research Institute, Anhui Academy of Agricultural Sciences, Hefei, Anhui, 230061, China
| | - Yuping Zhang
- Sericultural Research Institute, Anhui Academy of Agricultural Sciences, Hefei, Anhui, 230061, China
| | - Ming Chen
- Sericultural Research Institute, Anhui Academy of Agricultural Sciences, Hefei, Anhui, 230061, China
| | - Tao Fan
- Sericultural Research Institute, Anhui Academy of Agricultural Sciences, Hefei, Anhui, 230061, China
| | - Taichu Wang
- Sericultural Research Institute, Anhui Academy of Agricultural Sciences, Hefei, Anhui, 230061, China.
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Li N, Yao F, Huang H, Zhang H, Zhang W, Zou X, Sui L, Hou L. The potential role of Annexin 3 in diapause embryo restart of
Artemia sinica
and in response to stress of low temperature. Mol Reprod Dev 2019; 86:530-542. [DOI: 10.1002/mrd.23130] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Revised: 01/21/2019] [Accepted: 01/31/2019] [Indexed: 11/11/2022]
Affiliation(s)
- Na Li
- College of Life Sciences, Liaoning Normal UniversityDalian China
| | - Feng Yao
- College of Life Sciences, Liaoning Normal UniversityDalian China
| | - Huifang Huang
- College of Life Sciences, Liaoning Normal UniversityDalian China
| | - Hong Zhang
- College of Life Sciences, Liaoning Normal UniversityDalian China
| | - Wan Zhang
- College of Life Sciences, Liaoning Normal UniversityDalian China
| | - Xiangyang Zou
- Department of BiologyDalian Medical UniversityDalian China
| | - Linlin Sui
- Department of BiologyDalian Medical UniversityDalian China
| | - Lin Hou
- College of Life Sciences, Liaoning Normal UniversityDalian China
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Li R, Liu L, Dominic K, Wang T, Fan T, Hu F, Wang Y, Zhang L, Li L, Zhao W. Mulberry (Morus alba) MmSK gene enhances tolerance to drought stress in transgenic mulberry. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2018; 132:603-611. [PMID: 30336380 DOI: 10.1016/j.plaphy.2018.10.007] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Revised: 09/17/2018] [Accepted: 10/08/2018] [Indexed: 06/08/2023]
Abstract
Shaggy-like protein kinase (SK) plays important roles in the plant growth development, signal transduction, abiotic stress and biotic stress and substance metabolism regulation. However, the exact function of the response to drought stress in mulberry with SK remains unclear. In this study, a new SK gene that was designated as MmSK (GenBank accession NO: KY348867) was isolated and cloned from mulberry (Morus alba). MmSK contains two SK conservation domains of ATP domain and Serine/Threonine protein kinases active-site signature, and belonged to GSK3/shaggy protein kinase family. The expression of MmSK in mulberry was up-regulated under various abiotic stress treatments. Meanwhile, we observed higher expression levels in the phloem contrasted with other tissues. Mulberry MmSK gene was successfully silenced by virus induced gene silencing (VIGS), and after MmSK was silenced, the expression of MmSK in pTRV2-MmSK-VIGS plant (transgenic mulberry) dropped to 34.02% compared with the negative control inoculated with empty vector pTRV2-00 (CK). Under drought stress, the soluble protein content, proline content, superoxide dismutase (SOD) and peroxidase (POD) activities in transgenic mulberry decreased in different degree compared with the CK. In contrast, the accumulation of malondialdehyde (MDA) increased significantly in transgenic mulberry. With the extension of drought stress treatment time, the soluble protein content, proline content and MDA content gradually increased. The SOD activity and POD activity under drought stress gradually rose to the maximum on the fifth day and then decreased, which consistent with the change trend of MmSK gene expression. These results suggested that MmSK gene could function as a positive regulator of drought stress in mulberry.
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Affiliation(s)
- Ruixue Li
- Key Laboratory of Silkworm and Mulberry Genetic Improvement, Ministry of Agriculture, School of Biology and Technology, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu, China; Sericultural Research Institute, Anhui Academy of Agricultural Sciences, Hefei, Anhui, China
| | - Li Liu
- Key Laboratory of Silkworm and Mulberry Genetic Improvement, Ministry of Agriculture, School of Biology and Technology, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu, China
| | - Kotoka Dominic
- Key Laboratory of Silkworm and Mulberry Genetic Improvement, Ministry of Agriculture, School of Biology and Technology, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu, China
| | - Taichu Wang
- Sericultural Research Institute, Anhui Academy of Agricultural Sciences, Hefei, Anhui, China
| | - Tao Fan
- Sericultural Research Institute, Anhui Academy of Agricultural Sciences, Hefei, Anhui, China
| | - Fei Hu
- Plant Protection and Agro-products Safety Institute, Anhui Academy of Agricultural Sciences, Hefei, Anhui, China
| | - Yuting Wang
- Sericultural Research Institute, Anhui Academy of Agricultural Sciences, Hefei, Anhui, China
| | - Lin Zhang
- Key Laboratory of Silkworm and Mulberry Genetic Improvement, Ministry of Agriculture, School of Biology and Technology, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu, China
| | - Long Li
- Key Laboratory of Silkworm and Mulberry Genetic Improvement, Ministry of Agriculture, School of Biology and Technology, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu, China
| | - Weiguo Zhao
- Key Laboratory of Silkworm and Mulberry Genetic Improvement, Ministry of Agriculture, School of Biology and Technology, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu, China.
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Li R, Li R, Chen D, Wang T, Justice A, Li L, Zhao W. Mildew Resistance Locus O Gene Cloning, Characterization, and Expression Pattern in Mulberry (Morus multicaulis) and Its Prokaryotic Expression in E. coli. RUSSIAN JOURNAL OF BIOORGANIC CHEMISTRY 2018. [DOI: 10.1134/s1068162018010119] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Wang J, Du J, Mu X, Wang P. Cloning and characterization of the Cerasus humilis sucrose phosphate synthase gene (ChSPS1). PLoS One 2017; 12:e0186650. [PMID: 29036229 PMCID: PMC5643142 DOI: 10.1371/journal.pone.0186650] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2017] [Accepted: 10/04/2017] [Indexed: 01/30/2023] Open
Abstract
Sucrose is crucial to the growth and development of plants, and sucrose phosphate synthase (SPS) plays a key role in sucrose synthesis. To understand the genetic and molecular mechanisms of sucrose synthesis in Cerasus humilis, ChSPS1, a homologue of SPS, was cloned using RT-PCR. Sequence analysis showed that the open reading frame (ORF) sequence of ChSPS1 is 3174 bp in length, encoding a predicted protein of 1057 amino acids. The predicted protein showed a high degree of sequence identity with SPS homologues from other species. Real-time RT-PCR analysis showed that ChSPS1 mRNA was detected in all tissues and the transcription level was the highest in mature fruit. There is a significant positive correlation between expression of ChSPS1 and sucrose content. Prokaryotic expression of ChSPS1 indicated that ChSPS1 protein was expressed in E. coli and it had the SPS activity. Overexpression of ChSPS1 in tobacco led to upregulation of enzyme activity and increased sucrose contents in transgenic plants. Real-time RT-PCR analysis showed that the expression of ChSPS1 in transgenic tobacco was significantly higher than in wild type plants. These results suggested that ChSPS1 plays an important role in sucrose synthesis in Cerasus humilis.
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Affiliation(s)
- Juan Wang
- Department of Pomology, College of Horticulture, Shanxi Agricultural University, Taigu, China
- Institute of Pomology, Shanxi Academy of Agricultural Sciences, Taiyuan, China
| | - Junjie Du
- Department of Pomology, College of Horticulture, Shanxi Agricultural University, Taigu, China
- * E-mail:
| | - Xiaopeng Mu
- Department of Pomology, College of Horticulture, Shanxi Agricultural University, Taigu, China
| | - Pengfei Wang
- Department of Pomology, College of Horticulture, Shanxi Agricultural University, Taigu, China
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Hand SC, Denlinger DL, Podrabsky JE, Roy R. Mechanisms of animal diapause: recent developments from nematodes, crustaceans, insects, and fish. Am J Physiol Regul Integr Comp Physiol 2016; 310:R1193-211. [PMID: 27053646 PMCID: PMC4935499 DOI: 10.1152/ajpregu.00250.2015] [Citation(s) in RCA: 140] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2015] [Accepted: 03/11/2016] [Indexed: 01/22/2023]
Abstract
Life cycle delays are beneficial for opportunistic species encountering suboptimal environments. Many animals display a programmed arrest of development (diapause) at some stage(s) of their development, and the diapause state may or may not be associated with some degree of metabolic depression. In this review, we will evaluate current advancements in our understanding of the mechanisms responsible for the remarkable phenotype, as well as environmental cues that signal entry and termination of the state. The developmental stage at which diapause occurs dictates and constrains the mechanisms governing diapause. Considerable progress has been made in clarifying proximal mechanisms of metabolic arrest and the signaling pathways like insulin/Foxo that control gene expression patterns. Overlapping themes are also seen in mechanisms that control cell cycle arrest. Evidence is emerging for epigenetic contributions to diapause regulation via small RNAs in nematodes, crustaceans, insects, and fish. Knockdown of circadian clock genes in selected insect species supports the importance of clock genes in the photoperiodic response that cues diapause. A large suite of chaperone-like proteins, expressed during diapause, protects biological structures during long periods of energy-limited stasis. More information is needed to paint a complete picture of how environmental cues are coupled to the signal transduction that initiates the complex diapause phenotype, as well as molecular explanations for how the state is terminated. Excellent examples of molecular memory in post-dauer animals have been documented in Caenorhabditis elegans It is clear that a single suite of mechanisms does not regulate diapause across all species and developmental stages.
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Affiliation(s)
- Steven C Hand
- Department of Biological Sciences, Louisiana State University, Baton Rouge, Louisiana;
| | - David L Denlinger
- Departments of Entomology and Evolution, Ecology and Organismal Biology, Ohio State University, Columbus, Ohio
| | - Jason E Podrabsky
- Department of Biology, Portland State University, Portland, Oregon; and
| | - Richard Roy
- Department of Biology, McGill University, Montréal, Québec, Canada
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