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Xu Y, Li Y, Wang Q, Zheng C, Zhao D, Shi F, Liu X, Tao J, Zong S. Identification of key genes associated with overwintering in Anoplophora glabripennis larva using gene co-expression network analysis. PEST MANAGEMENT SCIENCE 2021; 77:805-816. [PMID: 32909651 DOI: 10.1002/ps.6082] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 09/06/2020] [Accepted: 09/10/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND Anoplophora glabripennis (Coleoptera: Cerambycidae) is a major quarantine pest in forestry. It is widely distributed throughout many regions such as Asia, Europe, and North America, and has enormous destructive potential for forests. The larvae of A. glabripennis overwinter in a dormant state with strong cold tolerance, and whether the larvae survive winter determines the population density in the following year. However, the molecular mechanisms of this process are not clear. RESULTS RNA sequencing (RNA-Seq) analysis of A. glabripennis larvae at five overwintering stages identified 6876 differentially expressed genes (DEGs). Among these, 46 functional genes that might respond to low temperature were identified. Weighted gene co-expression network analysis revealed that the MEturquoise module was correlated with the overwintering process. The STPK, PP2A, DGAT, and HSF genes were identified as hub genes using visualization of gene network. In addition, four genes related to sugar transport, gluconeogenesis and glycosylation were screened, which may be involved in the metabolic regulation of overwintering larvae. The protein-protein interaction network indicated that ribosomal protein and ATP synthase may play an important role in connecting with other proteins. The expression levels of fifteen hub genes were further validated by quantitative RT-PCR, and the results were consistent with RNA-Seq. CONCLUSION This study demonstrates key genes that may reveal the molecular mechanism of overwintering in A. glabripennis larvae. The genes may be the potential targets to prevent larvae from surviving the cold winter by developing new biological agents using genetic engineering.
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Affiliation(s)
- Yabei Xu
- Key Laboratory of Beijing for the Control of Forest Pests, Beijing Forestry University, Beijing, China
| | - Yurong Li
- Key Laboratory of Beijing for the Control of Forest Pests, Beijing Forestry University, Beijing, China
| | - Qianqian Wang
- Key Laboratory of Beijing for the Control of Forest Pests, Beijing Forestry University, Beijing, China
| | - Chunchun Zheng
- Key Laboratory of Beijing for the Control of Forest Pests, Beijing Forestry University, Beijing, China
| | - Dongfang Zhao
- Key Laboratory of Beijing for the Control of Forest Pests, Beijing Forestry University, Beijing, China
| | - Fengming Shi
- Key Laboratory of Beijing for the Control of Forest Pests, Beijing Forestry University, Beijing, China
| | - Xinhai Liu
- Ulanqab Municipal Bureau of Parks, Ulanqab, China
| | - Jing Tao
- Key Laboratory of Beijing for the Control of Forest Pests, Beijing Forestry University, Beijing, China
| | - Shixiang Zong
- Key Laboratory of Beijing for the Control of Forest Pests, Beijing Forestry University, Beijing, China
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2
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Shen J, Hao Z, Wang J, Hu J, Liu X, Li S, Ke N, Song Y, Lu Y, Hu L, Qiao L, Wu X, Luo Y. Comparative Transcriptome Profile Analysis of Longissimus dorsi Muscle Tissues From Two Goat Breeds With Different Meat Production Performance Using RNA-Seq. Front Genet 2021; 11:619399. [PMID: 33519920 PMCID: PMC7838615 DOI: 10.3389/fgene.2020.619399] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Accepted: 12/11/2020] [Indexed: 12/12/2022] Open
Abstract
Carcass weight, meat quality and muscle components are important traits economically and they underpin most of the commercial return to goat producers. In this study, the Longissimus dorsi muscle tissues were collected from five Liaoning cashmere (LC) goats and five Ziwuling black (ZB) goats with phenotypic difference in carcass weight, some meat quality traits and muscle components. The histological quantitative of collagen fibers and the transcriptome profiles in the Longissimus dorsi muscle tissues were investigated using Masson-trichrome staining and RNA-Seq, respectively. The percentage of total collagen fibers in the Longissimus dorsi muscle tissues from ZB goats was less than those from LC goats, suggesting that these ZB goats had more tender meat. An average of 15,919 and 15,582 genes were found to be expressed in Longissimus dorsi muscle tissues from LC and ZB goats, respectively. Compared to LC goats, the expression levels of 78 genes were up-regulated in ZB goats, while 133 genes were down-regulated. Gene ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analyses revealed that the differentially expressed genes (DEGs) were significantly enriched in GO terms related to the muscle growth and development and the deposition of intramuscular fat and lipid metabolism, hippo signaling pathway and Jak-STAT signaling pathway. The results provide an improved understanding of the genetic mechanisms regulating meat production performance in goats, and will help us improve the accuracy of selection for meat traits in goats using marker-assisted selection based on these differentially expressed genes obtained.
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Affiliation(s)
- Jiyuan Shen
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, Faculty of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China
| | - Zhiyun Hao
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, Faculty of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China
| | - Jiqing Wang
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, Faculty of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China
| | - Jiang Hu
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, Faculty of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China
| | - Xiu Liu
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, Faculty of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China
| | - Shaobin Li
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, Faculty of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China
| | - Na Ke
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, Faculty of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China
| | - Yize Song
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, Faculty of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China
| | - Yujie Lu
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, Faculty of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China
| | - Liyan Hu
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, Faculty of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China
| | - Lirong Qiao
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, Faculty of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China
| | - Xinmiao Wu
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, Faculty of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China
| | - Yuzhu Luo
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, Faculty of Animal Science and Technology, Gansu Agricultural University, Lanzhou, China
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Li G, Zhao H, Zhang X, Zhang Y, Zhao H, Yang X, Guo X, Xu B. Environmental Stress Responses of DnaJA1, DnaJB12 and DnaJC8 in Apis cerana cerana. Front Genet 2018; 9:445. [PMID: 30349556 PMCID: PMC6186841 DOI: 10.3389/fgene.2018.00445] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Accepted: 09/14/2018] [Indexed: 12/23/2022] Open
Abstract
DnaJ, also known as Hsp40, plays important roles in maintaining the normal physiological state of an organism under stress conditions by mediating essential processes, such as protein synthesis, degradation, folding and metabolism. However, the exact functions of most DnaJ members are not fully understood in insects. Here, we identified three genes, AccDnaJA1, AccDnaJB12, and AccDnaJC8, in Apis cerana cerana and explored their connection with the environmental stress response. Quantitative real-time PCR results showed that the mRNA levels of AccDnaJA1, AccDnaJB12, and AccDnaJC8 were all induced under cold, UV, H2O2 and different pesticides treatment. The expression patterns of AccDnaJB12 and AccDnaJC8 were upregulated by CdCl2 and HgCl2 stress, while the transcriptional levels of AccDnaJA1 were downregulated by CdCl2 and HgCl2 stress. Western blot findings further indicated that AccDnaJB12 protein levels were increased by some stress conditions. Knockdown of each of these three genes downregulated the transcriptional patterns of several stress response-related genes at different levels. Functional analysis further demonstrated that the resistance of A. cerana cerana to lambda-cyhalothrin stress was reduced with knockdown of AccDnaJA1, AccDnaJB12, or AccDnaJC8, indicating that these three genes may be involved in the tolerance to this pesticide. Taken together, these findings indicate that AccDnaJA1, AccDnaJB12, and AccDnaJC8 may play pivotal roles in the stress response by facilitating honeybee survival under some adverse circumstances. To our knowledge, this is the first report that reveals the roles of DnaJ family proteins under different adverse circumstances in A. cerana cerana.
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Affiliation(s)
- Guilin Li
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Tai’an, China
| | - Hang Zhao
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Tai’an, China
| | - Xuemei Zhang
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Tai’an, China
| | - Yanming Zhang
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Tai’an, China
| | - Huayu Zhao
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Tai’an, China
| | - Xinxin Yang
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Tai’an, China
| | - Xingqi Guo
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Tai’an, China
| | - Baohua Xu
- College of Animal Science and Technology, Shandong Agricultural University, Tai’an, China
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Li G, Wang L, Wang Y, Li H, Liu Z, Wang H, Xu B, Guo X. Developmental characterization and environmental stress responses of Y-box binding protein 1 gene (AccYB-1) from Apis cerana cerana. Gene 2018; 674:37-48. [DOI: 10.1016/j.gene.2018.06.071] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Revised: 06/11/2018] [Accepted: 06/21/2018] [Indexed: 12/11/2022]
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Li G, Zhang Y, Ni Y, Wang Y, Xu B, Guo X. Identification of a melatonin receptor type 1A gene (AccMTNR1A) in Apis cerana cerana and its possible involvement in the response to low temperature stress. Naturwissenschaften 2018; 105:24. [DOI: 10.1007/s00114-018-1546-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Revised: 02/18/2018] [Accepted: 02/20/2018] [Indexed: 12/20/2022]
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6
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Tian S, Wu J, Liu Y, Huang X, Li F, Wang Z, Sun MX. Ribosomal protein NtRPL17 interacts with kinesin-12 family protein NtKRP and functions in the regulation of embryo/seed size and radicle growth. JOURNAL OF EXPERIMENTAL BOTANY 2017; 68:5553-5564. [PMID: 29045730 PMCID: PMC5853406 DOI: 10.1093/jxb/erx361] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2017] [Accepted: 09/28/2017] [Indexed: 05/12/2023]
Abstract
We previously reported that a novel motor protein belonging to the kinesin-12 family, NtKRP, displays critical roles in regulating embryo and seed size establishment. However, it remains unknown exactly how NtKRP contributes to this developmental process. Here, we report that a 60S ribosomal protein NtRPL17 directly interacts with NtKRP. The phenotypes of NtRPL17 RNAi lines show notable embryo and seed size reduction. Structural observations of the NtRPL17-silenced embryos/seeds reveal that the embryo size reduction is due to a decrease in cell number. In these embryos, cell division cycle progression is delayed at the G2/M transition. These phenotypes are similar to that in NtKRP-silenced embryos/seeds, indicating that NtKRP and NtRPL17 function as partners in the same regulatory pathway during seed development and specifically regulate cell cycle progression to control embryo/seed size. This work reveals that NtRPL17, as a widely distributed ribosomal protein, plays a critical role in seed development and provides a new clue in the regulation of seed size. Confirmation of the interaction between NtKRP and NtRPL17 and their co-function in the control of the cell cycle also suggests that the mechanism might be conserved in both plants and animals.
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Affiliation(s)
- Shujuan Tian
- State Key Laboratory of Hybrid Rice, College of Life Sciences, Wuhan University, Wuhan, China
| | - Jingjing Wu
- State Key Laboratory of Hybrid Rice, College of Life Sciences, Wuhan University, Wuhan, China
| | - Yuan Liu
- State Key Laboratory of Hybrid Rice, College of Life Sciences, Wuhan University, Wuhan, China
| | - Xiaorong Huang
- State Key Laboratory of Hybrid Rice, College of Life Sciences, Wuhan University, Wuhan, China
| | - Fen Li
- State Key Laboratory of Hybrid Rice, College of Life Sciences, Wuhan University, Wuhan, China
- College of Life Sciences, Henan Normal University, Xinxiang, China
| | - Zhaodan Wang
- State Key Laboratory of Hybrid Rice, College of Life Sciences, Wuhan University, Wuhan, China
| | - Meng-Xiang Sun
- State Key Laboratory of Hybrid Rice, College of Life Sciences, Wuhan University, Wuhan, China
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Li G, Jia H, Wang H, Yan Y, Guo X, Sun Q, Xu B. A typical RNA-binding protein gene (AccRBM11) in Apis cerana cerana: characterization of AccRBM11 and its possible involvement in development and stress responses. Cell Stress Chaperones 2016; 21:1005-1019. [PMID: 27590229 PMCID: PMC5083670 DOI: 10.1007/s12192-016-0725-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2016] [Revised: 06/18/2016] [Accepted: 07/19/2016] [Indexed: 12/13/2022] Open
Abstract
RNA-binding motif proteins (RBMs) belong to RNA-binding proteins that display extraordinary posttranscriptional gene regulation roles in various cellular processes, including development, growth, and stress responses. Nevertheless, only a few examples of the roles of RBMs are known in insects, particularly in Apis cerana cerana. In the present study, we characterized the novel RNA-binding motif protein 11 from Apis cerana cerana, which was named AccRBM11 and whose promoter sequence included abundant potential transcription factor binding sites that are connected to responses to adverse stress and early development. Quantitative PCR results suggested that AccRBM11 was expressed at highest levels in 1-day postemergence worker bees. AccRBM11 mRNA and protein levels were higher in the poison gland and the epidermis than in other tissues. Moreover, levels of AccRBM11 transcription were upregulated upon all the simulation of abiotic stresses. Furthermore, Western blot analysis indicated that AccRBM11 protein expression levels could be induced under some abiotic stressors, a result that did not completely in agree with the qRT-PCR results. It is also noteworthy that the expression of some genes that connected with development or stress responses were remarkably suppressed when AccRBM11 was silenced, which suggested that AccRBM11 might play a similar role in development or stress reactions with the above genes. Taken together, the data presented here provide evidence that AccRBM11 is potentially involved in the regulation of development and some abiotic stress responses. We expect that this study will promote future research on the function of RNA-binding proteins.
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Affiliation(s)
- Guilin Li
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Taian, Shandong, 271018, People's Republic of China
| | - Haihong Jia
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Taian, Shandong, 271018, People's Republic of China
| | - Hongfang Wang
- College of Animal Science and Technology, Shandong Agricultural University, Taian, Shandong, 271018, People's Republic of China
| | - Yan Yan
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Taian, Shandong, 271018, People's Republic of China
| | - Xingqi Guo
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Taian, Shandong, 271018, People's Republic of China
| | - Qinghua Sun
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Taian, Shandong, 271018, People's Republic of China.
| | - Baohua Xu
- College of Animal Science and Technology, Shandong Agricultural University, Taian, Shandong, 271018, People's Republic of China.
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Characterization of an Apis cerana cerana cytochrome P450 gene (AccCYP336A1) and its roles in oxidative stresses responses. Gene 2016; 584:120-8. [DOI: 10.1016/j.gene.2016.02.016] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2015] [Revised: 01/28/2016] [Accepted: 02/10/2016] [Indexed: 01/18/2023]
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9
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Chen X, Yao P, Chu X, Hao L, Guo X, Xu B. Isolation of arginine kinase from Apis cerana cerana and its possible involvement in response to adverse stress. Cell Stress Chaperones 2015; 20:169-83. [PMID: 25135575 PMCID: PMC4255252 DOI: 10.1007/s12192-014-0535-2] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2014] [Revised: 08/03/2014] [Accepted: 08/05/2014] [Indexed: 02/04/2023] Open
Abstract
Arginine kinases (AK) in invertebrates play the same role as creatine kinases in vertebrates. Both proteins are important for energy metabolism, and previous studies on AK focused on this attribute. In this study, the arginine kinase gene was isolated from Apis cerana cerana and was named AccAK. A 5'-flanking region was also cloned and shown to contain abundant putative binding sites for transcription factors related to development and response to adverse stress. We imitated several abiotic and biotic stresses suffered by A. cerana cerana during their life, including heavy metals, pesticides, herbicides, heat, cold, oxidants, antioxidants, ecdysone, and Ascosphaera apis and then studied the expression patterns of AccAK after these treatments. AccAK was upregulated under all conditions, and, in some conditions, this response was very pronounced. Western blot and AccAK enzyme activity assays confirmed the results. In addition, a disc diffusion assay showed that overexpression of AccAK reduced the resistance of Escherichia coli cells to multiple adverse stresses. Taken together, our results indicated that AccAK may be involved of great significance in response to adverse abiotic and biotic stresses.
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Affiliation(s)
- Xiaobo Chen
- />State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Taian, Shandong 271018 People’s Republic of China
| | - Pengbo Yao
- />State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Taian, Shandong 271018 People’s Republic of China
| | - Xiaoqian Chu
- />State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Taian, Shandong 271018 People’s Republic of China
| | - Lili Hao
- />State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Taian, Shandong 271018 People’s Republic of China
| | - Xingqi Guo
- />State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Taian, Shandong 271018 People’s Republic of China
| | - Baohua Xu
- />College of Animal Science and Technology, Shandong Agricultural University, Taian, Shandong 271018 People’s Republic of China
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Meng F, Zhang Y, Liu F, Guo X, Xu B. Characterization and mutational analysis of omega-class GST (GSTO1) from Apis cerana cerana, a gene involved in response to oxidative stress. PLoS One 2014; 9:e93100. [PMID: 24667966 PMCID: PMC3965517 DOI: 10.1371/journal.pone.0093100] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2013] [Accepted: 03/03/2014] [Indexed: 02/07/2023] Open
Abstract
The Omega-class of GSTs (GSTOs) is a class of cytosolic GSTs that have specific structural and functional characteristics that differ from those of other GST groups. In this study, we demonstrated the involvement of the GSTO1 gene from A. cerana cerana in the oxidative stress response and further investigated the effects of three cysteine residues of GSTO1 protein on this response. Real-time quantitative PCR (qPCR) showed that AccGSTO1 was highly expressed in larvae and foragers, primarily in the midgut, epidermis, and flight muscles. The AccGSTO1 mRNA was significantly induced by cold and heat at 1 h and 3 h. The TBA (2-Thiobarbituric acid) method indicated that cold or heat resulted in MDA accumulation, but silencing of AccGSTO1 by RNAi in honeybees increased the concentration of MDA. RNAi also increased the temperature sensitivity of honeybees and markedly reduced their survival. Disc diffusion assay indicated that overexpression of AccGSTO1 in E. coli caused the resistance to long-term oxidative stress. Furthermore, AccGSTO1 was active in an in vitro DNA protection assay. Mutations in Cys-28, Cys-70, and Cys-124 affected the catalytic activity and antioxidant activity of AccGSTO1. The predicted three-dimensional structure of AccGSTO1 was also influenced by the replacement of these cysteine residues. These findings suggest that AccGSTO1 plays a protective role in the response to oxidative stress.
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Affiliation(s)
- Fei Meng
- College of Life Sciences, Shandong Agricultural University, Taian, Shandong, P. R. China
| | - Yuanying Zhang
- College of Life Sciences, Shandong Agricultural University, Taian, Shandong, P. R. China
| | - Feng Liu
- College of Animal Science and Technology, Shandong Agricultural University, Taian, Shandong, P. R. China
| | - Xingqi Guo
- College of Life Sciences, Shandong Agricultural University, Taian, Shandong, P. R. China
| | - Baohua Xu
- College of Animal Science and Technology, Shandong Agricultural University, Taian, Shandong, P. R. China
- * E-mail:
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Zhang Y, Yan H, Lu W, Li Y, Guo X, Xu B. A novel Omega-class glutathione S-transferase gene in Apis cerana cerana: molecular characterisation of GSTO2 and its protective effects in oxidative stress. Cell Stress Chaperones 2013; 18:503-16. [PMID: 23382010 PMCID: PMC3682018 DOI: 10.1007/s12192-013-0406-2] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2012] [Revised: 01/22/2013] [Accepted: 01/23/2013] [Indexed: 01/11/2023] Open
Abstract
Oxidative stress may be the most significant threat to the survival of living organisms. Glutathione S-transferases (GSTs) serve as the primary defences against xenobiotic and peroxidative-induced oxidative damage. In contrast to other well-defined GST classes, the Omega-class members are poorly understood, particularly in insects. Here, we isolated and characterised the GSTO2 gene from Apis cerana cerana (AccGSTO2). The predicted transcription factor binding sites in the AccGSTO2 promoter suggested possible functions in early development and antioxidant defence. Real-time quantitative PCR (qPCR) and western blot analyses indicated that AccGSTO2 was highly expressed in larvae and was predominantly localised to the brain tissue in adults. Moreover, AccGSTO2 transcription was induced by various abiotic stresses. The purified recombinant AccGSTO2 exhibited glutathione-dependent dehydroascorbate reductase and peroxidase activities. Furthermore, it could prevent DNA damage. In addition, Escherichia coli overexpressing AccGSTO2 displayed resistance to long-term oxidative stress exposure in disc diffusion assays. Taken together, these results suggest that AccGSTO2 plays a protective role in counteracting oxidative stress.
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Affiliation(s)
- Yuanying Zhang
- />State Key Laboratory of Crop Biology College of Life Sciences, Shandong Agricultural University, Taian, Shandong 271018 People’s Republic of China
- />School of Basic Medical Sciences, Taishan Medical University, Taian, Shandong 271000 People’s Republic of China
| | - Huiru Yan
- />State Key Laboratory of Crop Biology College of Life Sciences, Shandong Agricultural University, Taian, Shandong 271018 People’s Republic of China
| | - Wenjing Lu
- />State Key Laboratory of Crop Biology College of Life Sciences, Shandong Agricultural University, Taian, Shandong 271018 People’s Republic of China
| | - Yuzhen Li
- />State Key Laboratory of Crop Biology College of Life Sciences, Shandong Agricultural University, Taian, Shandong 271018 People’s Republic of China
| | - Xingqi Guo
- />State Key Laboratory of Crop Biology College of Life Sciences, Shandong Agricultural University, Taian, Shandong 271018 People’s Republic of China
| | - Baohua Xu
- />College of Animal Science and Technology, Shandong Agricultural University, Taian, Shandong 271018 People’s Republic of China
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Labellum transcriptome reveals alkene biosynthetic genes involved in orchid sexual deception and pollination-induced senescence. Funct Integr Genomics 2012; 12:693-703. [PMID: 22706647 DOI: 10.1007/s10142-012-0288-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2012] [Revised: 05/17/2012] [Accepted: 05/28/2012] [Indexed: 12/11/2022]
Abstract
One of the most remarkable pollination strategy in orchids biology is pollination by sexual deception, in which the modified petal labellum lures pollinators by mimicking the chemical (e.g. sex pheromones), visual (e.g. colour and shape/size) and tactile (e.g. labellum trichomes) cues of the receptive female insect species. The present study aimed to characterize the transcriptional changes occurring after pollination in the labellum of a sexually deceptive orchid (Ophrys fusca Link) in order to identify genes involved on signals responsible for pollinator attraction, the major goal of floral tissues. Novel information on alterations in the orchid petal labellum gene expression occurring after pollination demonstrates a reduction in the expression of alkene biosynthetic genes using O. fusca Link as the species under study. Petal labellum transcriptional analysis revealed downregulation of transcripts involved in both pigment machinery and scent compounds, acting as visual and olfactory cues, respectively, important in sexual mimicry. Regulation of petal labellum senescence was revealed by transcripts related to macromolecules breakdown, protein synthesis and remobilization of nutrients.
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Meng F, Lu W, Yu F, Kang M, Guo X, Xu B. Ribosomal protein L11 is related to brain maturation during the adult phase in Apis cerana cerana (Hymenoptera, Apidae). Naturwissenschaften 2012; 99:343-52. [PMID: 22415557 DOI: 10.1007/s00114-012-0905-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2011] [Revised: 02/26/2012] [Accepted: 02/28/2012] [Indexed: 01/25/2023]
Abstract
Ribosomal proteins (RPs) play pivotal roles in developmental regulation. The loss or mutation of ribosomal protein L11 (RPL11) induces various developmental defects. However, few RPs have been functionally characterized in Apis cerana cerana. In this study, we isolated a single copy gene, AccRPL11, and characterized its connection to brain maturation. AccRPL11 expression was highly concentrated in the adult brain and was significantly induced by abiotic stresses such as pesticides and heavy metals. Immunofluorescence assays demonstrated that AccRPL11 was localized to the medulla, lobula and surrounding tissues of esophagus in the brain. The post-transcriptional knockdown of AccRPL11 gene expression resulted in a severe decrease in adult brain than in other tissues. The expression levels of other brain development-related genes, p38, ERK2, CacyBP and CREB, were also reduced. Immunofluorescence signal attenuation was also observed in AccRPL11-rich regions of the brain in dsAccRPL11-injected honeybees. Taken together, these results suggest that AccRPL11 may be functional in brain maturation in honeybee adults.
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Affiliation(s)
- Fei Meng
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Taian, Shandong, 271018, People's Republic of China
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Li Y, Zhang L, Kang M, Guo X. AccERK2, a map kinase gene from Apis cerana cerana, plays roles in stress responses, developmental processes, and the nervous system. ARCHIVES OF INSECT BIOCHEMISTRY AND PHYSIOLOGY 2012; 79:121-134. [PMID: 22392800 DOI: 10.1002/arch.21011] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Extracellular signal-regulated kinase (ERK), a mitogen-activated protein kinase (MAPK), plays roles in a variety of cellular responses. However, limited information is available on the relationship between ERKs and environmental stresses. In this report, an ERK gene, AccERK2, was cloned and characterized from Apis cerana cerana. Polypeptide sequence alignment revealed that the single-copied AccERK2 shares high identity with other known ERKs and contains the typical conserved Thr-Glu-Tyr (TEY) motif in its activation loop. Genomic sequence analysis revealed that the seven exons of AccERK2 are interrupted by six introns, and the seventh intron is located in the 3' untranslated region. Semi-quantitative reverse transcription (RT-PCR) indicated that AccERK2 was expressed at higher levels in the larval and pupal stages than in the adult stage. AccERK2 was also most highly expressed in the brain. The expression of AccERK2 was induced by abiotic stresses, including heat, ion irradiation, oxidative stress, and heavy metal ions. Based on these results, it appears that AccERK2 in A. cerana cerana participates in developmental processes, the nervous system, and responses to environmental stressors.
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Affiliation(s)
- Yuzhen Li
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Taian, Shandong, People's Republic of China
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Yu X, Wang M, Kang M, Liu L, Guo X, Xu B. Molecular cloning and characterization of two nicotinic acetylcholine receptor β subunit genes from Apis cerana cerana. ARCHIVES OF INSECT BIOCHEMISTRY AND PHYSIOLOGY 2011; 77:163-178. [PMID: 21618599 DOI: 10.1002/arch.20432] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Nicotinic acetylcholine receptors (nAChRs) mediate fast cholinergic synaptic transmission in the insect nervous system and are important targets for insecticides. In this study, we identified and characterized two novel β subunit genes (Accβ1 and Accβ2) from Apis cerana cerana. Homology analysis indicated that Accβ1 and Accβ2 possess characteristics that are typical of nAChR subunits although Accβ2 was distinct from Accβ1 and the other nAChR subunits, due to its unusual transmembrane structure and uncommon exon-intron boundary within the genomic region encoding the TM1 transmembrane domain. Analysis of the 5' flanking regions indicated that Accβ1 and Accβ2 possess different regulatory elements, suggesting that the genes might exhibit various expression and regulatory patterns. RT-PCR analysis demonstrated that Accβ2 was expressed at a much higher level than Accβ1 in the tissues of adult bees. During development, Accβ1 was highly expressed at the pupal stages, whereas Accβ2 was abundantly expressed at the larval stages. Furthermore, Accβ1 and Accβ2 were both induced by exposure to various insecticides and environmental stresses although Accβ2 was more responsive than Accβ1. These results indicate that Accβ1 and Accβ2 may have distinct roles in insect growth and development and that they may belong to separate regulatory pathways involved in the response to insecticides and environmental stresses. This report is the first description of the differences between the nAChR β subunit genes in the Chinese honey bee and establishes an initial foundation for further study.
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Affiliation(s)
- Xiaoli Yu
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Taian, Shandong, P. R. China
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Meng F, Kang M, Liu L, Luo L, Xu B, Guo X. Characterization of the TAK1 gene in Apis cerana cerana (AccTAK1) and its involvement in the regulation of tissue-specific development. BMB Rep 2011; 44:187-92. [PMID: 21429297 DOI: 10.5483/bmbrep.2011.44.3.187] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
TGF-Β activated kinase-1 (TAK1) plays a pivotal role in developmental processes in many species. Previous research has mainly focused on the function of TAK1 in model organisms, and little is known about the function of TAK1 in hymenoptera insects. Here, we isolated and characterized the TAK1 gene from Apis cerana cerana. Promoter analysis of AccTAK1 revealed the presence of transcription factor binding sites related to early development. Real-time quantitative PCR and immunohistochemistry experiments revealed that AccTAK1 was expressed at high levels in fourth instar larvae, primarily in the abdomen, in the intestinal wall cells of the midgut and in the secretory cells of the salivary glands. In addition, AccTAK1 expression in fourth instar larvae could be dramatically induced by treatment with pesticides and organic solvents. These observations suggest that AccTAK1 may be involved in the regulation of early development in the larval salivary gland and midgut.
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Affiliation(s)
- Fei Meng
- State Key Laboratory of Crop Biology, College of Life Sciences, Taian, Shandong, PR China
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