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Liu Q, Luo D, Wang M, Song X, Ye X, Jashenko R, Ji R. Transcriptome analysis of the response to low temperature acclimation in Calliptamus italicus eggs. BMC Genomics 2022; 23:482. [PMID: 35778687 PMCID: PMC9248191 DOI: 10.1186/s12864-022-08705-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2022] [Accepted: 06/08/2022] [Indexed: 12/03/2022] Open
Abstract
Background Calliptamus italicus is a dominant species in the desert and semi-desert grassland. It is widely distributed throughout many regions such as Asia, Europe, North Africa and the Mediterranean, and has enormous destructive potential for agriculture and animal husbandry. The C. italicus overwintering as eggs in the soil through diapause, and the cold tolerance of locust eggs is the key to their ability to survive the winter smoothly to maintain the population. Results Transcriptome analysis of C. italicus eggs was carried out in this paper in constant low temperature acclimation, natural low temperature acclimation and room temperature. The differentially expressed genes related to cold tolerance were screened out, the differences in expression patterns under different low temperature acclimation were analyzed, and the genes in the significantly up-regulated pathways may play an important role in cold tolerance. The results show that different domestication modes can induce C. italicus eggs to express a large number of genes to alleviate low temperature damage, but C. italicus eggs are more sensitive to changes in temperature. Compared with the control, there are 8689 DEGs at constant low temperature and 14,994 DEGs at natural low temperature. KEGG analysis showed that DEGs were mainly enriched in pathways related to metabolism and biological systems under constant low temperature, and were mainly enriched in pathways related to biological systems and environmental information processing under natural low temperature. In addition, RNAi technology was used to further verify the regulation of genes in the significantly enriched up-regulated pathways on C. italicus eggs, and it was confirmed that the hatching rate of C. italicus eggs at low temperature was significantly reduced after interference. Conclusions Transcriptome analysis of C. italicus eggs treated at different temperatures provided a theoretical basis for further understanding the adaptation mechanism of C. italicus eggs to low temperature. In addition, four potential RNAi target genes were verified in the eggs of C. italicus for the first time, providing new ideas for effective control of this species. Supplementary Information The online version contains supplementary material available at 10.1186/s12864-022-08705-3.
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Affiliation(s)
- Qian Liu
- International Center for the Collaborative Management of Cross-border Pest in Central Asia, Xinjiang Key Laboratory of Special Species Conservation and Regulatory Biology, Xinjiang Normal University, Urumqi, 830054, China
| | - Di Luo
- International Center for the Collaborative Management of Cross-border Pest in Central Asia, Xinjiang Key Laboratory of Special Species Conservation and Regulatory Biology, Xinjiang Normal University, Urumqi, 830054, China
| | - Mengjia Wang
- International Center for the Collaborative Management of Cross-border Pest in Central Asia, Xinjiang Key Laboratory of Special Species Conservation and Regulatory Biology, Xinjiang Normal University, Urumqi, 830054, China
| | - Xingmin Song
- International Center for the Collaborative Management of Cross-border Pest in Central Asia, Xinjiang Key Laboratory of Special Species Conservation and Regulatory Biology, Xinjiang Normal University, Urumqi, 830054, China
| | - Xiaofang Ye
- International Center for the Collaborative Management of Cross-border Pest in Central Asia, Xinjiang Key Laboratory of Special Species Conservation and Regulatory Biology, Xinjiang Normal University, Urumqi, 830054, China
| | - Roman Jashenko
- Al-Farabi Kazakh National University, Almaty, Kazakhstan, 050038
| | - Rong Ji
- International Center for the Collaborative Management of Cross-border Pest in Central Asia, Xinjiang Key Laboratory of Special Species Conservation and Regulatory Biology, Xinjiang Normal University, Urumqi, 830054, China.
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Liu L, Zhang P, Gao Q, Feng X, Han L, Zhang F, Bai Y, Han M, Hu H, Dai F, Zhang G, Tong X. Comparative Transcriptome Analysis Reveals bmo-miR-6497-3p Regulate Circadian Clock Genes during the Embryonic Diapause Induction Process in Bivoltine Silkworm. INSECTS 2021; 12:739. [PMID: 34442305 PMCID: PMC8396838 DOI: 10.3390/insects12080739] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Revised: 08/08/2021] [Accepted: 08/12/2021] [Indexed: 12/26/2022]
Abstract
Diapause is one of the survival strategies of insects for confronting adverse environmental conditions. Bombyx mori displays typical embryonic diapause, and offspring diapause depends on the incubation environment of the maternal embryo in the bivoltine strains of the silkworm. However, the molecular mechanisms of the diapause induction process are still poorly understood. In this study, we compared the differentially expressed miRNAs (DEmiRs) in bivoltine silkworm embryos incubated at diapause- (25 °C) and non-diapause (15 °C)-inducing temperatures during the blastokinesis (BK) and head pigmentation (HP) phases using transcriptome sequencing. There were 411 known miRNAs and 71 novel miRNAs identified during the two phases. Among those miRNAs, there were 108 and 74 DEmiRs in the BK and HP groups, respectively. By the Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis of the predicted target genes of the DEmiRs, we found that aside from metabolism, the targets were also enriched in phototransduction-fly and insect hormone biosynthesis in the BK group and the HP group, respectively. Dual luciferase reporter assay illustrated that bmo-miR-6497-3p directly regulated Bmcycle and subsequently regulated the expression of circadian genes. These results imply that microRNAs, as vitally important regulators, respond to different temperatures and participate in the diapause induction process across species.
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Affiliation(s)
- Lulu Liu
- State Key Laboratory of Silkworm Genome Biology, Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture and Rural Affairs, College of Sericulture, Textile and Biomass Sciences, Southwest University, Chongqing 400715, China; (L.L.); (Q.G.); (Y.B.); (M.H.); (H.H.); (F.D.)
| | - Pan Zhang
- College of Sericulture, Textile and Biomass Sciences, Southwest University, Chongqing 400715, China; (P.Z.); (X.F.); (L.H.); (F.Z.)
| | - Qiang Gao
- State Key Laboratory of Silkworm Genome Biology, Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture and Rural Affairs, College of Sericulture, Textile and Biomass Sciences, Southwest University, Chongqing 400715, China; (L.L.); (Q.G.); (Y.B.); (M.H.); (H.H.); (F.D.)
| | - Xiaoge Feng
- College of Sericulture, Textile and Biomass Sciences, Southwest University, Chongqing 400715, China; (P.Z.); (X.F.); (L.H.); (F.Z.)
| | - Lan Han
- College of Sericulture, Textile and Biomass Sciences, Southwest University, Chongqing 400715, China; (P.Z.); (X.F.); (L.H.); (F.Z.)
| | - Fengbin Zhang
- College of Sericulture, Textile and Biomass Sciences, Southwest University, Chongqing 400715, China; (P.Z.); (X.F.); (L.H.); (F.Z.)
| | - Yanmin Bai
- State Key Laboratory of Silkworm Genome Biology, Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture and Rural Affairs, College of Sericulture, Textile and Biomass Sciences, Southwest University, Chongqing 400715, China; (L.L.); (Q.G.); (Y.B.); (M.H.); (H.H.); (F.D.)
| | - Minjin Han
- State Key Laboratory of Silkworm Genome Biology, Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture and Rural Affairs, College of Sericulture, Textile and Biomass Sciences, Southwest University, Chongqing 400715, China; (L.L.); (Q.G.); (Y.B.); (M.H.); (H.H.); (F.D.)
| | - Hai Hu
- State Key Laboratory of Silkworm Genome Biology, Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture and Rural Affairs, College of Sericulture, Textile and Biomass Sciences, Southwest University, Chongqing 400715, China; (L.L.); (Q.G.); (Y.B.); (M.H.); (H.H.); (F.D.)
| | - Fangyin Dai
- State Key Laboratory of Silkworm Genome Biology, Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture and Rural Affairs, College of Sericulture, Textile and Biomass Sciences, Southwest University, Chongqing 400715, China; (L.L.); (Q.G.); (Y.B.); (M.H.); (H.H.); (F.D.)
| | - Gaojun Zhang
- College of Sericulture, Textile and Biomass Sciences, Southwest University, Chongqing 400715, China; (P.Z.); (X.F.); (L.H.); (F.Z.)
| | - Xiaoling Tong
- State Key Laboratory of Silkworm Genome Biology, Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture and Rural Affairs, College of Sericulture, Textile and Biomass Sciences, Southwest University, Chongqing 400715, China; (L.L.); (Q.G.); (Y.B.); (M.H.); (H.H.); (F.D.)
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Rodrigues YK, van Bergen E, Alves F, Duneau D, Beldade P. Additive and non-additive effects of day and night temperatures on thermally plastic traits in a model for adaptive seasonal plasticity. Evolution 2021; 75:1805-1819. [PMID: 34097756 DOI: 10.1111/evo.14271] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2018] [Revised: 04/26/2021] [Accepted: 05/12/2021] [Indexed: 12/17/2022]
Abstract
Developmental plasticity can match organismal phenotypes to ecological conditions, helping populations to deal with the environmental heterogeneity of alternating seasons. In contrast to natural situations, experimental studies of plasticity often use environmental conditions that are held constant during development. To explore potential interactions between day and night temperatures, we tested effects of circadian temperature fluctuations on thermally plastic traits in a seasonally plastic butterfly, Bicyclus anynana. Comparing phenotypes for four treatments corresponding to a full-factorial analysis of cooler and warmer temperatures, we found evidence of significant interaction effects between day and night temperatures. We then focused on comparing phenotypes between individuals reared under two types of temperature fluctuations (warmer days with cooler nights, and cooler days with warmer nights) and individuals reared under a constant temperature of the same daily mean. We found evidence of additive-like effects (for body size), and different types of dominance-like effects, with one particular period of the light cycle (for development time) or one particular extreme temperature (for eyespot size) having a larger impact on phenotype. Differences between thermally plastic traits, which together underlie alternative seasonal strategies for survival and reproduction, revealed their independent responses to temperature. This study underscores the value of studying how organisms integrate complex environmental information toward a complete understanding of natural phenotypic variation and of the impact of environmental change thereon.
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Affiliation(s)
- Yara Katia Rodrigues
- Instituto Gulbenkian de Ciência, Oeiras, Portugal.,Current address: Atlantic Technical University (UTA), Mindelo, São Vicente island, Cabo Verde
| | - Erik van Bergen
- Instituto Gulbenkian de Ciência, Oeiras, Portugal.,Current address: Department of Evolutionary Biology and Environmental Studies, University of Zurich, Switzerland
| | - Filipa Alves
- Instituto Gulbenkian de Ciência, Oeiras, Portugal
| | - David Duneau
- Instituto Gulbenkian de Ciência, Oeiras, Portugal.,UMR 5174 - CNRS, Evolution et Diversité Biologique, University Paul Sabatier, Toulouse, France
| | - Patrícia Beldade
- Instituto Gulbenkian de Ciência, Oeiras, Portugal.,UMR 5174 - CNRS, Evolution et Diversité Biologique, University Paul Sabatier, Toulouse, France.,CE3C: Centre for Ecology, Evolution, and Environmental Changes, Faculty of Sciences, University of Lisbon, Portugal
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Zhou XR, Shan YM, Tan Y, Zhang ZR, Pang BP. Comparative Analysis of Transcriptome Responses to Cold Stress in Galeruca daurica (Coleoptera: Chrysomelidae). JOURNAL OF INSECT SCIENCE (ONLINE) 2019; 19:5637494. [PMID: 31752020 PMCID: PMC6871913 DOI: 10.1093/jisesa/iez109] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Indexed: 05/01/2023]
Abstract
Galeruca daurica (Joannis) has become a new insect pest in the Inner Mongolia grasslands since 2009, and its larvae and eggs have strong cold tolerance. To get a deeper insight into its molecular mechanisms of cold stress responses, we performed de novo transcriptome assembly for G. daurica by RNA-Seq and compared the transcriptomes of its larvae exposed to five different temperature treatments (-10, -5, 0, 5, and 25°C for 1 h and then recovered at 25°C for 1 h), respectively. Compared with the control (25°C), the numbers of differentially expressed genes (DEGs) decreased from 1,821 to 882, with the temperature declining from 5 to -10°C. Moreover, we obtained 323 coregulated DEGs under different low temperatures. Under four low temperatures (-10, -5, 0, and 5°C), a large number of genes were commonly upregulated during recovery from cold stresses, including those related to cuticle protein, followed by cytochrome P450, clock protein, fatty acid synthase, and fatty acyl-CoA reductase; meanwhile, lots of genes encoding cuticle protein, RNA replication protein, RNA-directed DNA polymerase, and glucose dehydrogenase were commonly downregulated. Our findings provide important clues for further investigations of key genes and molecular mechanisms involved in the adaptation of G. daurica to harsh environments.
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Affiliation(s)
- Xiao-Rong Zhou
- Research Center for Grassland Entomology, Inner Mongolia Agricultural University, Hohhot, China
| | - Yan-Min Shan
- Research Center for Grassland Entomology, Inner Mongolia Agricultural University, Hohhot, China
- Inner Mongolia Grassland Station, Hohhot, China
| | - Yao Tan
- Research Center for Grassland Entomology, Inner Mongolia Agricultural University, Hohhot, China
| | | | - Bao-Ping Pang
- Research Center for Grassland Entomology, Inner Mongolia Agricultural University, Hohhot, China
- Corresponding author, e-mail:
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Inhibition of expression of the circadian clock gene Period causes metabolic abnormalities including repression of glycometabolism in Bombyx mori cells. Sci Rep 2017; 7:46258. [PMID: 28393918 PMCID: PMC5385517 DOI: 10.1038/srep46258] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2016] [Accepted: 03/13/2017] [Indexed: 02/07/2023] Open
Abstract
Abnormalities in the circadian clock system are known to affect the body’s metabolic functions, though the molecular mechanisms responsible remain uncertain. In this study, we achieved continuous knockdown of B. mori Period (BmPer) gene expression in the B. mori ovary cell line (BmN), and generated a Per-KD B. mori model with developmental disorders including small individual cells and slow growth. We conducted cell metabolomics assays by gas chromatography/liquid chromatography-mass spectrometry and showed that knockdown of BmPer gene expression resulted in significant inhibition of glycometabolism. Amino acids that used glucose metabolites as a source were also down-regulated, while lipid metabolism and nucleotide metabolism were significantly up-regulated. Metabolite correlation analysis showed that pyruvate and lactate were closely related to glycometabolism, as well as to metabolites such as aspartate, alanine, and xanthine in other pathways. Further validation experiments showed that the activities of the key enzymes of glucose metabolism, hexokinase, phosphofructokinase, and citrate synthase, were significantly decreased and transcription of their encoding genes, as well as that of pyruvate kinase, were also significantly down-regulated. We concluded that inhibition of the circadian clock gene BmPer repressed glycometabolism, and may be associated with changes in cellular amino acid metabolism, and in cell growth and development.
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Huang HJ, Xue J, Zhuo JC, Cheng RL, Xu HJ, Zhang CX. Comparative analysis of the transcriptional responses to low and high temperatures in three rice planthopper species. Mol Ecol 2017; 26:2726-2737. [PMID: 28214356 DOI: 10.1111/mec.14067] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2016] [Revised: 01/19/2017] [Accepted: 02/09/2017] [Indexed: 12/20/2022]
Abstract
The brown planthopper (Nilaparvata lugens, BPH), white-backed planthopper (Sogatella furcifera, WBPH) and small brown planthopper (Laodelphax striatellus, SBPH) are important rice pests in Asia. These three species differ in thermal tolerance and exhibit quite different migration and overwintering strategies. To understand the underlying mechanisms, we sequenced and compared the transcriptome of the three species under different temperature treatments. We found that metabolism-, exoskeleton- and chemosensory-related genes were modulated. In high temperature (37 °C), heat shock protein (HSP) genes were the most co-regulated; other genes related with fatty acid metabolism, amino acid metabolism and transportation were also differentially expressed. In low temperature (5 °C), the differences in gene expression of the genes for fatty acid synthesis, transport proteins and cytochrome P450 might explain why SBPH can overwinter in high latitudes, while BPH and WBPH cannot. In addition, other genes related with moulting, and membrane lipid composition might also play roles in resistance to low and high temperatures. Our study illustrates the common responses and different tolerance mechanisms of three rice planthoppers in coping with temperature change, and provides a potential strategy for pest management.
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Affiliation(s)
- Hai-Jian Huang
- State Key Laboratory of Rice Biology and Ministry of Agriculture Key Laboratory of Agricultural Entomology, Institute of Insect Science, Zhejiang University, Hangzhou, 310058, China
| | - Jian Xue
- State Key Laboratory of Rice Biology and Ministry of Agriculture Key Laboratory of Agricultural Entomology, Institute of Insect Science, Zhejiang University, Hangzhou, 310058, China
| | - Ji-Chong Zhuo
- State Key Laboratory of Rice Biology and Ministry of Agriculture Key Laboratory of Agricultural Entomology, Institute of Insect Science, Zhejiang University, Hangzhou, 310058, China
| | - Ruo-Lin Cheng
- State Key Laboratory of Rice Biology and Ministry of Agriculture Key Laboratory of Agricultural Entomology, Institute of Insect Science, Zhejiang University, Hangzhou, 310058, China
| | - Hai-Jun Xu
- State Key Laboratory of Rice Biology and Ministry of Agriculture Key Laboratory of Agricultural Entomology, Institute of Insect Science, Zhejiang University, Hangzhou, 310058, China
| | - Chuan-Xi Zhang
- State Key Laboratory of Rice Biology and Ministry of Agriculture Key Laboratory of Agricultural Entomology, Institute of Insect Science, Zhejiang University, Hangzhou, 310058, China
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