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Liu Q, Deng Z, Chen H, Kim MS, Kim DH, Gu L, Lee JS, Yang Z. Changes in Induced-Antipredation Defense Traits and Transcriptome Regulations of Daphnia magna in Response to 5-HT 1A Receptor Antagonist. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024; 58:7577-7587. [PMID: 38630542 DOI: 10.1021/acs.est.3c10720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/19/2024]
Abstract
The serotonin signaling system plays a crucial role in regulating the ontogeny of crustaceans. Here, we describe the effects of different concentrations of the 5-hydroxytryptamine 1A receptor antagonist (WAY-100635) on the induced antipredation (Rhodeus ocellatus as the predator), morphological, behavioral, and life-history defenses of Daphnia magna and use transcriptomics to analyze the underlying molecular mechanisms. Our results indicate that exposure to WAY-100635 leads to changes in the expression of different defensive traits in D. magna when faced with fish predation risks. Specifically, as the length of exposure to WAY-100635 increases, high concentrations of WAY-100635 inhibit defensive responses associated with morphological and reproductive activities but promote the immediate negative phototactic behavioral defense of D. magna. This change is related to the underlying mechanism through which WAY-100635 interferes with gene expression of G-protein-coupled GABA receptors by affecting GABBR1 but promotes serotonin receptor signaling and ecdysteroid signaling pathways. In addition, we also find for the first time that fish kairomone can significantly activate the HIF-1α signaling pathway, which may lead to an increase in the rate of immediate movement. These results can help assess the potential impacts of serotonin-disrupting psychotropic drugs on zooplankton in aquatic ecosystems.
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Affiliation(s)
- Qi Liu
- Jiangsu Key Laboratory for Biodiversity and Biotechnology, School of Biological Sciences, Nanjing Normal University, 1 Wenyuan Road, Nanjing 210023, China
| | - Ziyi Deng
- Jiangsu Key Laboratory for Biodiversity and Biotechnology, School of Biological Sciences, Nanjing Normal University, 1 Wenyuan Road, Nanjing 210023, China
| | - Huafang Chen
- Jiangsu Key Laboratory for Biodiversity and Biotechnology, School of Biological Sciences, Nanjing Normal University, 1 Wenyuan Road, Nanjing 210023, China
| | - Min-Sub Kim
- Department of Biological Sciences, College of Science, Sungkyunkwan University, Suwon 16419, South Korea
| | - Duck-Hyun Kim
- Department of Biological Sciences, College of Science, Sungkyunkwan University, Suwon 16419, South Korea
| | - Lei Gu
- Jiangsu Key Laboratory for Biodiversity and Biotechnology, School of Biological Sciences, Nanjing Normal University, 1 Wenyuan Road, Nanjing 210023, China
| | - Jae-Seong Lee
- Department of Biological Sciences, College of Science, Sungkyunkwan University, Suwon 16419, South Korea
| | - Zhou Yang
- Jiangsu Key Laboratory for Biodiversity and Biotechnology, School of Biological Sciences, Nanjing Normal University, 1 Wenyuan Road, Nanjing 210023, China
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Wei QY, Jin F, Wang ZY, Li BJ, Cao WB, Sun ZY, Mo SJ. MicroRNAs: A novel signature in the metastasis of esophageal squamous cell carcinoma. World J Gastroenterol 2024; 30:1497-1523. [PMID: 38617454 PMCID: PMC11008420 DOI: 10.3748/wjg.v30.i11.1497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Revised: 01/12/2024] [Accepted: 03/01/2024] [Indexed: 03/21/2024] Open
Abstract
Esophageal squamous cell carcinoma (ESCC) is a malignant epithelial tumor, characterized by squamous cell differentiation, it is the sixth leading cause of cancer-related deaths globally. The increased mortality rate of ESCC patients is predominantly due to the advanced stage of the disease when discovered, coupled with higher risk of metastasis, which is an exceedingly malignant characteristic of cancer, frequently leading to a high mortality rate. Unfortunately, there is currently no specific and effective marker to predict and treat metastasis in ESCC. MicroRNAs (miRNAs) are a class of small non-coding RNA molecules, approximately 22 nucleotides in length. miRNAs are vital in modulating gene expression and serve pivotal regulatory roles in the occurrence, progression, and prognosis of cancer. Here, we have examined the literature to highlight the intimate correlations between miRNAs and ESCC metastasis, and show that ESCC metastasis is predominantly regulated or regulated by genetic and epigenetic factors. This review proposes a potential role for miRNAs as diagnostic and therapeutic biomarkers for metastasis in ESCC metastasis, with the ultimate aim of reducing the mortality rate among patients with ESCC.
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Affiliation(s)
- Qi-Ying Wei
- Department of Pathophysiology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou 450001, Henan Province, China
| | - Feng Jin
- Department of Pathophysiology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou 450001, Henan Province, China
| | - Zhong-Yu Wang
- Department of Perioperative Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan Province, China
| | - Bing-Jie Li
- Department of Pathophysiology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou 450001, Henan Province, China
| | - Wen-Bo Cao
- Department of Pathophysiology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou 450001, Henan Province, China
| | - Zhi-Yan Sun
- Division of Special Service, Department of Basic Oncology, School of Basic Medicine, Zhengzhou University, Zhengzhou 450001, Henan Province, China
| | - Sai-Jun Mo
- Department of Basic Science of Oncology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou 450001, Henan Province, China
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Zhang L, Tang F. Molecular mechanism of Serratia marcescens Bizio infection in Reticulitermes chinensis Snyder based on full-length SMRT transcriptome sequencing. BULLETIN OF ENTOMOLOGICAL RESEARCH 2024:1-13. [PMID: 38328866 DOI: 10.1017/s000748532300072x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/09/2024]
Abstract
Reticulitermes chinensis Snyder is an important pest in forestry and construction and is widely distributed in China. We found that Serratia marcescens Bizio strain SM1 has insecticidal activity to R. chinensis, but the pathogenic mechanism of SM1 to R. chinensis is not clear. Therefore, full-length transcriptome sequencing was performed on R. chinensis infected with SM1 and the control group. A total of 230 differentially expressed genes were identified by comparing SM1 infection group and the control group, among which 103 were downregulated and 127 were upregulated. We found downregulated genes in nine metabolic pathway categories, among which carbohydrate metabolism had the most downregulated genes, followed by energy metabolism and amino acid metabolism. We also found that some downregulated genes were related to pattern recognition receptors, cellular immunity, and humoral immunity, indicating that R. chinensis immunity was negatively affected by SM1 infection. In addition, some genes in signal transduction and genetic information processing pathways were downregulated. In this study, high-throughput full-length transcriptome analysis was used to analyse the pathogenic mechanism of SM1 to R. chinensis. The results of this study provide useful information for exploring the relationship between SM1 and R. chinensis, and provide theoretical support for the future application of SM1 and the prevention and treatment of R. chinensis.
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Affiliation(s)
- Ling Zhang
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, People's Republic of China
- College of Forestry, Nanjing Forestry University, Nanjing 210037, People's Republic of China
| | - Fang Tang
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, People's Republic of China
- College of Forestry, Nanjing Forestry University, Nanjing 210037, People's Republic of China
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He YX, Li YY, Wu YQ, Ren LZ, Wang Y, Wang YM, Yu Y. Huanglian Ganjiang decoction alleviates ulcerative colitis by restoring gut barrier via APOC1-JNK/P38 MAPK signal pathway based on proteomic analysis. JOURNAL OF ETHNOPHARMACOLOGY 2024; 318:116994. [PMID: 37541400 DOI: 10.1016/j.jep.2023.116994] [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: 05/19/2023] [Revised: 07/25/2023] [Accepted: 08/01/2023] [Indexed: 08/06/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Ulcerative colitis (UC) is a kind of chronic intestinal inflammation accompanied with abdominal pain, diarrhea and hematochezia. Huanglian Ganjiang decoction (HGD) derived from "Beiji Qianjin Yao Fang" was used for UC patients clinically. However, the specific mechanism of HGD in treating UC remain unclear. AIM OF STUDY Our study devoted to demonstrating the therapeutic effect of HGD for colitis and clarifying the underlying mechanism. MATERIALS AND METHODS UPLC-MS was carried out to identify the ingredients of HGD. UC mice were induced by giving 3% dextran sulfate sodium (DSS) solution for one week and treated by HGD for another week. Body weight fluctuation, disease activity index (DAI), colon length and pathological change of colon tissues were observed to evaluate therapeutical effect of HGD. ELISA and qPCR were carried out to estimate the inflammatory state. Western blot, qPCR and immunofluorescence were used to access the expression of tight junction proteins. Tandem mass tag (TMT)-Based proteomics and network pharmacology was launched to screen and predict the potential targets and pathway regulated by HGD. RESULTS Based on the UPLC-MS/MS analysis, 100 components were identified in HGD. After 7-day treatment, HGD significantly alleviated colitis-associated symptoms including body weight loss, shorted colon, increase of DAI score, histopathologic lesions. HGD also reduced inflammatory cytokines IL-6 and IL-1β levels, increased the number of goblet cells and restored tight junction proteins Occludin, Claudin-1 in colon. Network pharmacology study predicted that tight junction and MAPK pathway might be affected by HGD in colitis mice. APOC1 was screened out as key target in HGD-treated mice using TMT-based proteomics study. Further Western blot results showed that HGD reduced expressions of APOC1, p-P38 and p-JNK. CONCLUSION HGD improves general symptoms of colitis mice at medium and high doses, which may be associated with restoring tight junction and intestinal barrier integrity and function through suppression of APOC1-JNK/P38 MAPK signal pathway.
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Affiliation(s)
- Yue-Xian He
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, 510006, Guangdong Province, China
| | - Yan-Yang Li
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, 510006, Guangdong Province, China
| | - Ye-Qun Wu
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, 510006, Guangdong Province, China
| | - Ling-Zhi Ren
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, 510006, Guangdong Province, China
| | - Yi Wang
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, 510006, Guangdong Province, China
| | - Yu-Mei Wang
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, 510006, Guangdong Province, China.
| | - Yang Yu
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, 510006, Guangdong Province, China.
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Li S, Xu F, Zhang Y, Gao Z, Han Z, Feng C. Identification and characteristic analysis of an extracellular signal-regulated kinase from Ostrinia furnacalis Guenée. ARCHIVES OF INSECT BIOCHEMISTRY AND PHYSIOLOGY 2024; 115:e22077. [PMID: 38288489 DOI: 10.1002/arch.22077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Revised: 11/18/2023] [Accepted: 12/13/2023] [Indexed: 02/01/2024]
Abstract
The extracellular signal-regulated kinase (ERK) pathway, a critical genetic determinant, controls diverse physiological functions, including innate immunity, development, and stress response. In the current study, a full-length cDNA (1592bp) encoding the ERK gene (OfERK) was cloned from Ostrinia furnacalis Guenée (GenBank accession number: MF797866). The open reading frame of the OfERK gene encoded 364 amino acids and shared 96.43%-98.08% amino acid identities with other insect mitogen-activated protein kinases. For spatiotemporal analysis of the expression pattern, OfERK exhibited a significant peak expression on the 3rd day of the pupa stage and showed the highest expression in hemocytes specifically. Indirect immunofluorescence assays and immuno-electron microscopy revealed a wide distribution of the OfERK protein in hemocytes and epidermis. Moreover, the results demonstrated that the Bt Cry1Ab-activated toxin significantly induces the expression of OfERK. Other genes related to immune response, development, and stress response exhibited dynamic changes in expression after Cry1Ab oral treatment. The expression of OfERK was downregulated through RNA interference, and the correlation of its expression with other related genes was verified using quantitative real-time polymerase chain reaction. Our study provides valuable insights into the regulatory mechanism of ERK in insects for future studies.
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Affiliation(s)
- Shuzhong Li
- Department of Entomology, College of Plant Protection, Yangzhou University, Yangzhou, Jiangsu, China
| | - Fuqiang Xu
- Department of Entomology, College of Plant Protection, Yangzhou University, Yangzhou, Jiangsu, China
| | - Yiqiang Zhang
- Department of Entomology, College of Plant Protection, Yangzhou University, Yangzhou, Jiangsu, China
| | - Zupeng Gao
- Department of Entomology, College of Plant Protection, Yangzhou University, Yangzhou, Jiangsu, China
| | - Zhaoyang Han
- Department of Entomology, College of Plant Protection, Yangzhou University, Yangzhou, Jiangsu, China
| | - Congjing Feng
- Department of Entomology, College of Plant Protection, Yangzhou University, Yangzhou, Jiangsu, China
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Zhao H, Sun G, Mu X, Li X, Wang J, Zhao M, Zhang G, Ji R, Chen C, Gao G, Wang J. Genome-wide selective signatures mining the candidate genes for egg laying in goose. BMC Genomics 2023; 24:750. [PMID: 38057756 DOI: 10.1186/s12864-023-09852-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Accepted: 11/28/2023] [Indexed: 12/08/2023] Open
Abstract
BACKGROUND Improving the egg production of goose is a crucial goal of breeding, because genetics is the key factor affecting egg production. Thus, we sequenced the genomes of 55 Chinese indigenous geese from six breeds, which were divided into the high egg-laying group (ZE, HY, and SC) and low egg-laying group (ZD, LH, and ST). Based on the results of the inter-population selection signal analysis, we mined the selected genome regions in the high egg-laying germplasm population to identify the key candidate genes affecting the egg-laying traits. RESULTS According to the whole-genome sequencing data, the average sequencing depth reached 11.75X. The genetic relationships among those six goose breeds coincided with the breed's geographical location. The six selective signal detection results revealed that the most selected regions were located on Chr2 and Chr12. In total, 12,051 single-nucleotide polymorphism (SNP) sites were selected in all six methods. Using the enrichment results of candidate genes, we detected some pathways involved in cell differentiation, proliferation, and female gonadal development that may cause differences in egg production. Examples of these pathways were the PI3K-Akt signaling pathway (IGF2, COMP, and FGFR4), animal organ morphogenesis (IGF2 and CDX4), and female gonad development (TGFB2). CONCLUSION On analyzing the genetic background of six local goose breeds by using re-sequencing data, we found that the kinship was consistent with their geographic location. 107 egg-laying trait-associated candidate genes were mined through six selection signal analysis. Our study provides a critical reference for analyzing the molecular mechanism underlying differences in reproductive traits and molecular breeding of geese.
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Affiliation(s)
- Hongchang Zhao
- Jiangsu Agri-animal Husbandry Vocational College, Taizhou, 225300, China
- National Waterfowl of gene pool, Taizhou, 225511, China
| | - Guobo Sun
- Jiangsu Agri-animal Husbandry Vocational College, Taizhou, 225300, China
- National Waterfowl of gene pool, Taizhou, 225511, China
| | - Xiaohui Mu
- Jiangsu Agri-animal Husbandry Vocational College, Taizhou, 225300, China
- National Waterfowl of gene pool, Taizhou, 225511, China
| | - Xiaoming Li
- Jiangsu Agri-animal Husbandry Vocational College, Taizhou, 225300, China
- National Waterfowl of gene pool, Taizhou, 225511, China
| | - Jun Wang
- Jiangsu Agri-animal Husbandry Vocational College, Taizhou, 225300, China
- National Waterfowl of gene pool, Taizhou, 225511, China
| | - Mengli Zhao
- Jiangsu Agri-animal Husbandry Vocational College, Taizhou, 225300, China
- National Waterfowl of gene pool, Taizhou, 225511, China
| | - Gansheng Zhang
- Jiangsu Agri-animal Husbandry Vocational College, Taizhou, 225300, China
- National Waterfowl of gene pool, Taizhou, 225511, China
- Taizhou Fengda Agriculture and Animal Husbandry Technology Co., Ltd, Taizhou, 225511, China
| | - Rongchao Ji
- National Waterfowl of gene pool, Taizhou, 225511, China
- Taizhou Fengda Agriculture and Animal Husbandry Technology Co., Ltd, Taizhou, 225511, China
| | - Chao Chen
- National Waterfowl of gene pool, Taizhou, 225511, China
- Taizhou Fengda Agriculture and Animal Husbandry Technology Co., Ltd, Taizhou, 225511, China
| | - Guangliang Gao
- Chongqing Academy of Animal Science, Chongqing, 402460, China
| | - Jian Wang
- Jiangsu Agri-animal Husbandry Vocational College, Taizhou, 225300, China.
- National Waterfowl of gene pool, Taizhou, 225511, China.
- Taizhou Fengda Agriculture and Animal Husbandry Technology Co., Ltd, Taizhou, 225511, China.
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Ashraf MZ, Mogilicherla K, Sellamuthu G, Siino V, Levander F, Roy A. Comparative gut proteomics study revealing adaptive physiology of Eurasian spruce bark beetle, Ips typographus (Coleoptera: Scolytinae). FRONTIERS IN PLANT SCIENCE 2023; 14:1157455. [PMID: 38078109 PMCID: PMC10703158 DOI: 10.3389/fpls.2023.1157455] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Accepted: 11/01/2023] [Indexed: 01/23/2024]
Abstract
The bark beetle, Ips typographus (L.), is a major pest of Norway spruce, Picea abies (L.), causing enormous economic losses globally. The adult stage of the I. typographus has a complex life cycle (callow and sclerotized); the callow beetles feed ferociously, whereas sclerotized male beetles are more aggressive and pioneers in establishing new colonies. We conducted a comparative proteomics study to understand male and female digestion and detoxification processes in callow and sclerotized beetles. Proteome profiling was performed using high-throughput liquid chromatography-mass spectrometry. A total of >3000 proteins were identified from the bark beetle gut, and among them, 539 were differentially abundant (fold change ±2, FDR <0.05) between callow and sclerotized beetles. The differentially abundant proteins (DAPs) mainly engage with binding, catalytic activity, anatomical activity, hydrolase activity, metabolic process, and carbohydrate metabolism, and hence may be crucial for growth, digestion, detoxification, and signalling. We validated selected DAPs with RT-qPCR. Gut enzymes such as NADPH-cytochrome P450 reductase (CYC), glutathione S-transferase (GST), and esterase (EST) play a crucial role in the I. typographus for detoxification and digesting of host allelochemicals. We conducted enzyme activity assays with them and observed a positive correlation of CYC and GST activities with the proteomic results, whereas EST activity was not fully correlated. Furthermore, our investigation revealed that callow beetles had an upregulation of proteins associated with juvenile hormone (JH) biosynthesis and chitin metabolism, whereas sclerotized beetles exhibited an upregulation of proteins linked to fatty acid metabolism and the TCA cycle. These distinctive patterns of protein regulation in metabolic and functional processes are specific to each developmental stage, underscoring the adaptive responses of I. typographicus in overcoming conifer defences and facilitating their survival. Taken together, it is the first gut proteomic study comparing males and females of callow and sclerotized I. typographus, shedding light on the adaptive ecology at the molecular level. Furthermore, the information about bark beetle handling of nutritionally limiting and defence-rich spruce phloem diet can be utilized to formulate RNAi-mediated beetle management.
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Affiliation(s)
- Muhammad Zubair Ashraf
- Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, Prague, Czechia
| | - Kanakachari Mogilicherla
- Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, Prague, Czechia
| | - Gothandapani Sellamuthu
- Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, Prague, Czechia
| | - Valentina Siino
- Department of Immunotechnology, Lund University, Lund, Sweden
| | - Fredrik Levander
- Department of Immunotechnology, Lund University, Lund, Sweden
- National Bioinformatics Infrastructure Sweden (NBIS), Science for Life Laboratory, Lund University, Lund, Sweden
| | - Amit Roy
- Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, Prague, Czechia
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Zhang X, Jin L, Li G. RNAi-Mediated Functional Analysis Reveals the Regulation of Oocyte Vitellogenesis by Ecdysone Signaling in Two Coleoptera Species. BIOLOGY 2023; 12:1284. [PMID: 37886994 PMCID: PMC10604093 DOI: 10.3390/biology12101284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 09/20/2023] [Accepted: 09/22/2023] [Indexed: 10/28/2023]
Abstract
Coleoptera is the largest taxa of animals by far. The robust reproductive capacity is one of the main reasons for such domination. Successful female reproduction partially relies on effective vitellogenesis. However, the hormone regulation of vitellogenesis remains to be explored. In the present paper, in vitro culture of Leptinotarsa decemlineata 1-day-old adult fat bodies in the 20E-contained median did not activate juvenile hormone production and insulin-like peptide pathways, but significantly stimulated the expression of two LdVg genes, in a cycloheximide-dependent pattern. In vivo RNA interference (RNAi) of either ecdysone receptor (LdEcR) or ultraspiracle (Ldusp) by injection of corresponding dsRNA into 1-day-old female adults inhibited oocyte development, dramatically repressed the transcription of LdVg genes in fat bodies and of LdVgR in ovaries; application of JH into the LdEcR or Ldusp RNAi L. decemlineata females did not restore the oocyte development, partially rescued the decreased LdVg mRNA levels but over-compensated LdVgR expression levels. The same RNAi experiments were performed in another Coleoptera species, Henosepilachna vigintioctopunctata. Little yolk substances were seen in the misshapen oocytes in the HvEcR or Hvusp RNAi ovaries, in contrast to larger amounts of yolk granules in the normal oocytes. Correspondingly, the transcript levels of HvVg in the fat bodies and ovaries decreased significantly in the HvEcR and Hvusp RNAi samples. Our results here show that 20E signaling is indispensable in the activation of vitellogenesis in the developing oocytes of the two beetle species.
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Affiliation(s)
| | | | - Guoqing Li
- Education Ministry Key Laboratory of Integrated Management of Crop Diseases and Pests, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Department of Entomology, College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China; (X.Z.); (L.J.)
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9
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Cullen G, Gilligan JB, Guhlin JG, Dearden PK. Germline progenitors and oocyte production in the honeybee queen ovary. Genetics 2023; 225:iyad138. [PMID: 37487025 PMCID: PMC10471204 DOI: 10.1093/genetics/iyad138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 06/28/2023] [Accepted: 06/30/2023] [Indexed: 07/26/2023] Open
Abstract
Understanding the reproduction of honeybee queens is crucial to support populations of this economically important insect. Here we examine the structure of the honeybee ovary to determine the nature of the germline progenitors in the ovary. Using a panel of marker genes that mark somatic or germline tissue in other insects we determine which cells in the honeybee ovary are somatic and which germline. We examine patterns of cell division and demonstrate that, unlike Drosophila, there is no evidence of single germline stem cells that provide the germline in honeybees. Germline progenitors are clustered in groups of 8 cells, joined by a polyfusome, and collections of these, in each ovariole, appear to maintain the germline during reproduction. We also show that these 8-cell clusters can divide and that their division occurs such that the numbers of germline progenitors are relatively constant over the reproductive life of queen honeybees. This information helps us to understand the diversity of structures in insect reproduction, and provide information to better support honeybee reproduction.
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Affiliation(s)
- Georgia Cullen
- Laboratory for Evolution and Development, Biochemistry Department, University of Otago, Dunedin, 9054, Aotearoa-New Zealand
| | - Joshua B Gilligan
- Laboratory for Evolution and Development, Biochemistry Department, University of Otago, Dunedin, 9054, Aotearoa-New Zealand
- Biological Heritage National Science Challenge, Biochemistry Department, University of Otago, Dunedin, 9054, Aotearoa-New Zealand
| | - Joseph G Guhlin
- Laboratory for Evolution and Development, Biochemistry Department, University of Otago, Dunedin, 9054, Aotearoa-New Zealand
- Genomics Aotearoa, Biochemistry Department, University of Otago, Dunedin, 9054, Aotearoa-New Zealand
| | - Peter K Dearden
- Laboratory for Evolution and Development, Biochemistry Department, University of Otago, Dunedin, 9054, Aotearoa-New Zealand
- Biological Heritage National Science Challenge, Biochemistry Department, University of Otago, Dunedin, 9054, Aotearoa-New Zealand
- Genomics Aotearoa, Biochemistry Department, University of Otago, Dunedin, 9054, Aotearoa-New Zealand
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Yu L, Yang M, Jiang D, Jin H, Jin Z, Chu X, Zhao M, Wu S, Zhang F, Hu X. Antibacterial peptides from Monochamus alternatus induced oxidative stress and reproductive defects in pine wood nematode through the ERK/MAPK signaling pathway. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2023; 194:105511. [PMID: 37532327 DOI: 10.1016/j.pestbp.2023.105511] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Revised: 06/16/2023] [Accepted: 06/26/2023] [Indexed: 08/04/2023]
Abstract
Pine wilt disease is a devastating disease of pine caused by the pine wood nematode (PWN) Bursaphelenchus xylophilus. Long-term use of chemical nematicides leads to the development of resistance in nematodes and harms the environment. Evaluations for green environmental protection agents, identified the antibacterial peptide, MaltDef1, from Monochamus alternatus which had nematicidal effect. We studied its nematicidal activity and action against PWN. In this study, the antibacterial peptide S-defensin was synthesized from M. alternatus. The results showed that S-defensin caused mortality to the PWN, causing shrinkage, pore, cell membrane dissolution and muscle atrophy. In addition, PWN reproduction was also affected by S-defensin; it decreased in a concentration dependent manner with increasing treatment concentration. By contrast, reactive oxygen species (ROS) in vivo increased in a concentration-dependent manner. We applied transcriptome to analyze the changes in gene expressions in S-defensin treated PWN, and found that the most significantly enriched pathway was the ERK/MAPK signaling pathway. RNAi was used to validate the functions of four differential genes (Let-23, Let-60, Mek-2 and Lin-1) in this pathway. The results showed that knockdown of these genes significantly decreased the survival rate and reproductive yield of, and also increased ROS in PWN. The antibacterial peptide S-defensin had a significant inhibitory effect on the survival and reproduction of PWN, shown by cell membrane damage and intracellular biological oxidative stress via regulating the ERK/MAPK signaling pathway. This indicates that S-defensin has a target in B. xylophilus, against which new green target pesticides can be developed.
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Affiliation(s)
- Lu Yu
- Forestry College, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Meijiao Yang
- Forestry College, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Di Jiang
- Forestry College, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Haole Jin
- Forestry College, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Zehong Jin
- Forestry College, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Xu Chu
- Forestry College, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Mingzhen Zhao
- Key Laboratory of Vector Biology and Pathogen Control of Zhejiang Province, College of Life Science, Huzhou University, Huzhou 313000, China
| | - Songqing Wu
- Forestry College, Fujian Agriculture and Forestry University, Fuzhou 350002, China; Key Laboratory of Integrated Pest Management in Ecological Forests, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Feiping Zhang
- Forestry College, Fujian Agriculture and Forestry University, Fuzhou 350002, China; Key Laboratory of Integrated Pest Management in Ecological Forests, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
| | - Xia Hu
- Forestry College, Fujian Agriculture and Forestry University, Fuzhou 350002, China; Key Laboratory of Integrated Pest Management in Ecological Forests, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
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Wu X, Zhou C, Li X, Lin J, Aguila LCR, Wen F, Wang L. Genome-wide identification and immune response analysis of mitogen-activated protein kinase cascades in tea geometrid, Ectropis grisescens Warren (Geometridae, Lepidoptera). BMC Genomics 2023; 24:344. [PMID: 37349677 DOI: 10.1186/s12864-023-09446-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Accepted: 06/13/2023] [Indexed: 06/24/2023] Open
Abstract
BACKGROUND Tea geometrid Ectropis grisescens (Geometridae: Lepidoptera), is one of the most destructive defoliators in tea plantations in China. The MAPK cascade is known to be an evolutionarily conserved signaling module, acting as pivotal cores of host-pathogen interactions. Although the chromosome-level reference genome of E. grisescens was published, the whole MAPK cascade gene family has not been fully identified yet, especially the expression patterns of MAPK cascade gene family members upon an ecological biopesticide, Metarhizium anisopliae, remains to be understood. RESULTS In this study, we have identified 19 MAPK cascade gene family members in E. grisescens, including 5 MAPKs, 4 MAP2Ks, 8 MAP3Ks, and 2 MAP4Ks. The molecular evolution characteristics of the whole Eg-MAPK cascade gene family, including gene structures, protein structural organization, chromosomal localization, orthologs construction and gene duplication, were systematically investigated. Our results showed that the members of Eg-MAPK cascade gene family were unevenly distributed in 13 chromosomes, and the clustered members in each group shared similar structures of the genes and proteins. Gene expression data revealed that MAPK cascade genes were expressed in all four developmental stages of E. grisescens and were fairly and evenly distributed in four different larva tissues. Importantly, most of the MAPK cascade genes were induced or constitutively expressed upon M. anisopliae infection. CONCLUSIONS In summary, the present study was one of few studies on MAPK cascade gene in E. grisescens. The characterization and expression profiles of Eg-MAPK cascades genes might help develop new ecofriendly biological insecticides to protect tea trees.
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Affiliation(s)
- Xiaozhu Wu
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops; Key Laboratory of Biopesticides and Chemical Biology, Ministry of Education, College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
- School of Biological Science and Food Engineering, Chuzhou University, Chuzhou, 239099, China
| | - Chenghua Zhou
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops; Key Laboratory of Biopesticides and Chemical Biology, Ministry of Education, College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Xiaofang Li
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops; Key Laboratory of Biopesticides and Chemical Biology, Ministry of Education, College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Jingyi Lin
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops; Key Laboratory of Biopesticides and Chemical Biology, Ministry of Education, College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Luis Carlos Ramos Aguila
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops; Key Laboratory of Biopesticides and Chemical Biology, Ministry of Education, College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Feng Wen
- School of Pharmacy and Life Science, Jiujiang University, Jiujiang, 332000, China.
| | - Liande Wang
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops; Key Laboratory of Biopesticides and Chemical Biology, Ministry of Education, College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, 350002, China.
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