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Articoli di riviste sul tema "Locusts Genetics"

Autore: Grafiati

Pubblicato: 4 giugno 2021

Ultima modifica: 6 febbraio 2022

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1

Zhao, Lianfeng, Wei Guo, Feng Jiang, Jing He, Hongran Liu, Juan Song, Dan Yu та Le Kang. "Phase-related differences in egg production of the migratory locust regulated by differential oosorption through microRNA-34 targeting activinβ". PLOS Genetics 17, № 1 (6 січня 2021): e1009174. http://dx.doi.org/10.1371/journal.pgen.1009174.

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Outbreaks of locust plagues result from the long-term accumulation of high-density egg production. The migratory locust, Locusta migratoria, displays dramatic differences in the egg-laid number with dependence on population density, while solitarious locusts lay more eggs compared to gregarious ones. However, the regulatory mechanism for the egg-laid number difference is unclear. Herein, we confirm that oosorption plays a crucial role in the regulation of egg number through the comparison of physiological and molecular biological profiles in gregarious and solitarious locusts. We find that gre

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2

Nishide, Yudai, and Seiji Tanaka. "Occurrence and genetics of black-eyed migratory locusts,Locusta migratoria(Orthoptera: Acrididae)." Entomological Science 19, no. 1 (January 2016): 20–24. http://dx.doi.org/10.1111/ens.12161.

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3

Mullié, Wim C., Robert A. Cheke, Stephen Young, Abdou Baoua Ibrahim, and Albertinka J. Murk. "Increased and sex-selective avian predation of desert locusts Schistocerca gregaria treated with Metarhizium acridum." PLOS ONE 16, no. 1 (January 4, 2021): e0244733. http://dx.doi.org/10.1371/journal.pone.0244733.

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The entomopathogenic fungus Metarhizium acridum in oil-based formulations (Green Muscle® (GM)) is a biopesticide for locust control lacking side-effects on biodiversity, unlike chemical insecticides. Under controlled conditions, GM-treated locusts and grasshoppers attract predators, a complementary advantage in locust control. We assessed avian predation on a population of desert locusts in northern Niger aerially sprayed operationally with GM with 107 g viable conidia ha-1. Populations of adult locusts and birds and vegetation greenness were assessed simultaneously along two transects from 12

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4

Simpson, Stephen J., and Gregory A. Sword. "Locusts." Current Biology 18, no. 9 (May 2008): R364—R366. http://dx.doi.org/10.1016/j.cub.2008.02.029.

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5

Coggan, Nicole, Fiona J. Clissold, and Stephen J. Simpson. "Locusts use dynamic thermoregulatory behaviour to optimize nutritional outcomes." Proceedings of the Royal Society B: Biological Sciences 278, no. 1719 (February 2, 2011): 2745–52. http://dx.doi.org/10.1098/rspb.2010.2675.

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Because key nutritional processes differ in their thermal optima, ectotherms may use temperature selection to optimize performance in changing nutritional environments. Such behaviour would be especially advantageous to small terrestrial animals, which have low thermal inertia and often have access to a wide range of environmental temperatures over small distances. Using the locust, Locusta migratoria , we have demonstrated a direct link between nutritional state and thermoregulatory behaviour. When faced with chronic restrictions to the supply of nutrients, locusts selected increasingly lower

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6

Santos, Dulce, Jozef Vanden Broeck, and Niels Wynant. "Systemic RNA interference in locusts: reverse genetics and possibilities for locust pest control." Current Opinion in Insect Science 6 (December 2014): 9–14. http://dx.doi.org/10.1016/j.cois.2014.09.013.

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7

Georgiou, Fillipe, Jerome Buhl, J. E. F. Green, Bishnu Lamichhane, and Ngamta Thamwattana. "Modelling locust foraging: How and why food affects group formation." PLOS Computational Biology 17, no. 7 (July 7, 2021): e1008353. http://dx.doi.org/10.1371/journal.pcbi.1008353.

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Locusts are short horned grasshoppers that exhibit two behaviour types depending on their local population density. These are: solitarious, where they will actively avoid other locusts, and gregarious where they will seek them out. It is in this gregarious state that locusts can form massive and destructive flying swarms or plagues. However, these swarms are usually preceded by the aggregation of juvenile wingless locust nymphs. In this paper we attempt to understand how the distribution of food resources affect the group formation process. We do this by introducing a multi-population partial

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8

Despland, Emma, and Stephen J. Simpson. "Resource distribution mediates synchronization of physiological rhythms in locust groups." Proceedings of the Royal Society B: Biological Sciences 273, no. 1593 (March 29, 2006): 1517–22. http://dx.doi.org/10.1098/rspb.2006.3471.

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Synchronized behaviour is common in animal groups. In ant colonies, synchronization occurs because active ants stimulate their neighbours to activity. We use oscillator theory to explain how stimulation from active neighbours synchronizes activity in groups of solitarious locusts via entrainment of internal physiological rhythms. We also show that the spatial distribution of food resources controls coupling between individual locusts and the emergence of synchronized activity. In locusts ( Schistocerca gregaria ), individual schedules of activity and quiescence arise from an irregular physiolo

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9

Gordon, Shira D., Joseph C. Jackson, Stephen M. Rogers, and James F. C. Windmill. "Listening to the environment: hearing differences from an epigenetic effect in solitarious and gregarious locusts." Proceedings of the Royal Society B: Biological Sciences 281, no. 1795 (November 22, 2014): 20141693. http://dx.doi.org/10.1098/rspb.2014.1693.

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Locusts display a striking form of phenotypic plasticity, developing into either a lone-living solitarious phase or a swarming gregarious phase depending on population density. The two phases differ extensively in appearance, behaviour and physiology. We found that solitarious and gregarious locusts have clear differences in their hearing, both in their tympanal and neuronal responses. We identified significant differences in the shape of the tympana that may be responsible for the variations in hearing between locust phases. We measured the nanometre mechanical responses of the ear's tympanal

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10

Verlinden, Heleen, Lieven Sterck, Jia Li, Zhen Li, Anna Yssel, Yannick Gansemans, Rik Verdonck, et al. "First draft genome assembly of the desert locust, Schistocerca gregaria." F1000Research 9 (May 21, 2021): 775. http://dx.doi.org/10.12688/f1000research.25148.2.

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Background: At the time of publication, the most devastating desert locust crisis in decades is affecting East Africa, the Arabian Peninsula and South-West Asia. The situation is extremely alarming in East Africa, where Kenya, Ethiopia and Somalia face an unprecedented threat to food security and livelihoods. Most of the time, however, locusts do not occur in swarms, but live as relatively harmless solitary insects. The phenotypically distinct solitarious and gregarious locust phases differ markedly in many aspects of behaviour, physiology and morphology, making them an excellent model to stud

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11

Jones, G. H., and J. A. Croft. "Surface spreading of synaptonemal complexes in locusts." Chromosoma 93, no. 6 (June 1986): 489–95. http://dx.doi.org/10.1007/bf00386789.

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12

Verlinden, Heleen, Lieven Sterck, Jia Li, Zhen Li, Anna Yssel, Yannick Gansemans, Rik Verdonck, et al. "First draft genome assembly of the desert locust, Schistocerca gregaria." F1000Research 9 (July 27, 2020): 775. http://dx.doi.org/10.12688/f1000research.25148.1.

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Abstract (sommario):

Background: At the time of publication, the most devastating desert locust crisis in decades is affecting East Africa, the Arabian Peninsula and South-West Asia. The situation is extremely alarming in East Africa, where Kenya, Ethiopia and Somalia face an unprecedented threat to food security and livelihoods. Most of the time, however, locusts do not occur in swarms, but live as relatively harmless solitary insects. The phenotypically distinct solitarious and gregarious locust phases differ markedly in many aspects of behaviour, physiology and morphology, making them an excellent model to stud

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13

Zhang, Zhibin, Bernard Cazelles, Huidong Tian, Leif Christian Stige, Achim Bräuning, and Nils Chr Stenseth. "Periodic temperature-associated drought/flood drives locust plagues in China." Proceedings of the Royal Society B: Biological Sciences 276, no. 1658 (November 25, 2008): 823–31. http://dx.doi.org/10.1098/rspb.2008.1284.

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Global warming is currently of great concern. Yet the ecological effects of low-frequency climate variations remain largely unknown. Recent analyses of interdecadal variability in population abundance of the Oriental migratory locust ( Locusta migratoria manilensis ) in China have revealed negative associations with temperature and positive associations with Yangtze drought and flood frequencies during the past millennium (AD 957–1956). In order to shed new light on the causal relationships between locust abundance, floods, droughts and temperature in ancient China, we used wavelet analysis to

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14

Jarwar, Aftab Raza, Kun Hao, Ellyn Valery Bitume, Hidayat Ullah, Dongnan Cui, Xiangqun Nong, Guangjun Wang, Xiongbing Tu, and Zehua Zhang. "Comparative Transcriptomic Analysis Reveals Molecular Profiles of Central Nervous System in Maternal Diapause Induction of Locusta migratoria." G3: Genes|Genomes|Genetics 9, no. 10 (August 12, 2019): 3287–96. http://dx.doi.org/10.1534/g3.119.400475.

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Egg diapause in Locusta migratoria L. (Orthoptera: Acridoidea) is believed to be influenced by maternal photoperiod. However, the molecular mechanism regulating the phenomenon of maternal diapause induction is unclear. Here we performed transcriptomic analyses from the central nervous system (CNS) of migratory locusts under long and short photoperiods to identify differentially expressed genes (DEGs) related to diapause induction. There were total of 165750 unigenes from 569491 transcripts, and 610 DEGs were obtained in S_CNS (CNS of short photoperiod treated locusts) vs. L_CNS (CNS of long ph

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15

Dillon, R. J., and A. K. Charnley. "Inhibition of Metarhizium anisopliae by the gut bacterial flora of the desert locust: characterisation of antifungal toxins." Canadian Journal of Microbiology 34, no. 9 (September 1, 1988): 1075–82. http://dx.doi.org/10.1139/m88-189.

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Antifungal compounds have been found in gut fluid and aqueous faecal extracts from parasite-free and conventional desert locusts (Schistocerca gregaria), but not from germ-free locusts. These compounds inhibit germination of four isolates of Metarhizium anisopliae and 10 other species of insect and plant pathogenic fungi. Low molecular weight (< 200) antifungal compounds were purified from faecal extracts using ion-exchange and gel chromatography. Hydroquinone, 3,4-dihydroxy-and 3,5-dihydroxy-benzoic acid were identified using gas chromatography and mass spectrometry. The phenols possessed

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16

Gross, Michael. "How locusts become a plague." Current Biology 31, no. 10 (May 2021): R459—R461. http://dx.doi.org/10.1016/j.cub.2021.05.007.

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17

Talal, Stav, Arianne J. Cease, Jacob P. Youngblood, Ruth Farington, Eduardo V. Trumper, Hector E. Medina, Julio E. Rojas, A. Fernando Copa, and Jon F. Harrison. "Plant carbohydrate content limits performance and lipid accumulation of an outbreaking herbivore." Proceedings of the Royal Society B: Biological Sciences 287, no. 1940 (December 2, 2020): 20202500. http://dx.doi.org/10.1098/rspb.2020.2500.

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Locusts are major intermittent threats to food security and the ecological factors determining where and when these occur remain poorly understood. For many herbivores, obtaining adequate protein from plants is a key challenge. We tested how the dietary protein : non-structural carbohydrate ratio (p : c) affects the developmental and physiological performance of 4th-5th instar nymphs of the South American locust, Schistocerca cancellata, which has recently resurged in Argentina, Bolivia and Paraguay. Field marching locusts preferred to feed on high carbohydrate foods. Field-collected juveniles

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18

Buss, M. E., and S. A. Henderson. "The effects of elevated temperature on chiasma formation in Locusts migratoria." Chromosoma 97, no. 3 (November 1988): 235–46. http://dx.doi.org/10.1007/bf00292967.

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19

Zhao, Dejian, Zhenyu Zhang, Arianne Cease, Jon Harrison, and Le Kang. "Efficient utilization of aerobic metabolism helps Tibetan locusts conquer hypoxia." BMC Genomics 14, no. 1 (2013): 631. http://dx.doi.org/10.1186/1471-2164-14-631.

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20

Rowell, C. H. F. "Mechanisms of flight steering in locusts." Experientia 44, no. 5 (May 1988): 389–95. http://dx.doi.org/10.1007/bf01940532.

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21

LOOF, ARNOLD, ILSE CLAEYS, GERT SIMONET, PETER VERLEYEN, TIM VANDERSMISSEN, FILIP SAS, and JURGEN HUYBRECHTS. "Molecular markers of phase transition in locusts." Insect Science 13, no. 1 (February 2006): 3–12. http://dx.doi.org/10.1111/j.1744-7917.2006.00061.x.

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22

Niven, Jeremy E., Christian J. Buckingham, Sheila Lumley, Matthew F. Cuttle, and Simon B. Laughlin. "Visual Targeting of Forelimbs in Ladder-Walking Locusts." Current Biology 20, no. 1 (January 2010): 86–91. http://dx.doi.org/10.1016/j.cub.2009.10.079.

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23

Yang, Meiling, Yuanyuan Wei, Feng Jiang, Yanli Wang, Xiaojiao Guo, Jing He, and Le Kang. "MicroRNA-133 Inhibits Behavioral Aggregation by Controlling Dopamine Synthesis in Locusts." PLoS Genetics 10, no. 2 (February 27, 2014): e1004206. http://dx.doi.org/10.1371/journal.pgen.1004206.

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24

Guo, Wei, Juan Song, Pengcheng Yang, Xiangyong Chen, Dafeng Chen, Dani Ren, Le Kang, and Xianhui Wang. "Juvenile hormone suppresses aggregation behavior through influencing antennal gene expression in locusts." PLOS Genetics 16, no. 4 (April 29, 2020): e1008762. http://dx.doi.org/10.1371/journal.pgen.1008762.

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25

Carrington, Jessica, Mads Kuhlmann Andersen, Kaylen Brzezinski, and Heath A. MacMillan. "Hyperkalaemia, not apoptosis, accurately predicts insect chilling injury." Proceedings of the Royal Society B: Biological Sciences 287, no. 1941 (December 16, 2020): 20201663. http://dx.doi.org/10.1098/rspb.2020.1663.

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Abstract (sommario):

There is a growing appreciation that insect distribution and abundance are associated with the limits of thermal tolerance, but the physiology underlying thermal tolerance remains poorly understood. Many insects, like the migratory locust ( Locusta migratoria ), suffer a loss of ion and water balance leading to hyperkalaemia (high extracellular [K + ]) in the cold that indirectly causes cell death. Cells can die in several ways under stress, and how they die is of critical importance to identifying and understanding the nature of thermal adaptation. Whether apoptotic or necrotic cell death pat

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26

GOLDSWORTHY, G. J., K. OPOKU-WARE, and L. M. MULLEN. "Adipokinetic Hormone and the Immune Responses of Locusts to Infection." Annals of the New York Academy of Sciences 1040, no. 1 (April 2005): 106–13. http://dx.doi.org/10.1196/annals.1327.013.

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27

Flanigan, James E., and Gerd Gäde. "On the Release of the Three Locust (Locusta migratoria) Adipokinetic Hormones: Effect of Crustacean Cardioactive Peptide and Inhibition by Sugars." Zeitschrift für Naturforschung C 54, no. 1-2 (February 1, 1999): 110–18. http://dx.doi.org/10.1515/znc-1999-1-219.

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An existing test to monitor the rate of adipokinetic hormone release from the corpora cardiaca (C C) of Locusta migratoria in vitro was improved, so that a constant basal rate of release was achieved and the amount of released Lom-AKH-I, II and III could be quantified by HPLC . This test system was subsequently used to demonstrate that a small peptide, which has been found in a few insect species including L. migratoria, crustacean cardioactive peptide (CCAP), induces release of all three AKHs. Moreover, 80 mᴍ trehalose reduces CCAP-induced release of AKHs in vitro, and 160 mᴍ glucose reduces

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28

Fu, Qinbing, Hongxin Wang, Cheng Hu, and Shigang Yue. "Towards Computational Models and Applications of Insect Visual Systems for Motion Perception: A Review." Artificial Life 25, no. 3 (August 2019): 263–311. http://dx.doi.org/10.1162/artl_a_00297.

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Motion perception is a critical capability determining a variety of aspects of insects' life, including avoiding predators, foraging, and so forth. A good number of motion detectors have been identified in the insects' visual pathways. Computational modeling of these motion detectors has not only been providing effective solutions to artificial intelligence, but also benefiting the understanding of complicated biological visual systems. These biological mechanisms through millions of years of evolutionary development will have formed solid modules for constructing dynamic vision systems for fu

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29

Zhao, De-Jian, Kun Guo, and Le Kang. "Identification of condition-specific reference genes from microarray data for locusts exposed to hypobaric hypoxia." FEBS Open Bio 2, no. 1 (January 1, 2012): 235–40. http://dx.doi.org/10.1016/j.fob.2012.08.001.

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Luo, Y., X. Wang, X. Wang, D. Yu, B. Chen, and L. Kang. "Differential responses of migratory locusts to systemic RNA interference via double-stranded RNA injection and feeding." Insect Molecular Biology 22, no. 5 (July 19, 2013): 574–83. http://dx.doi.org/10.1111/imb.12046.

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31

Xu, L., L. Li, P. Yang та Z. Ma. "Calmodulin as a downstream gene of octopamine-OAR α1 signalling mediates olfactory attraction in gregarious locusts". Insect Molecular Biology 26, № 1 (7 жовтня 2016): 1–12. http://dx.doi.org/10.1111/imb.12266.

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32

ANTON, SYLVIA, and BILL S. HANSSON. "Central Processing of Aggregation Pheromones in Solitary and Gregarious Desert Locusts, Schistocerca gregariaa." Annals of the New York Academy of Sciences 855, no. 1 OLFACTION AND (November 1998): 525–28. http://dx.doi.org/10.1111/j.1749-6632.1998.tb10620.x.

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33

Claeys, I., G. Simonet, B. Breugelmans, S. Van Soest, V. Franssens, F. Sas, A. De Loof, and J. Vanden Broeck. "Quantitative real-time RT-PCR analysis in desert locusts reveals phase dependent differences in neuroparsin transcript levels." Insect Molecular Biology 14, no. 4 (August 2005): 415–22. http://dx.doi.org/10.1111/j.1365-2583.2005.00572.x.

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Bazazi, Sepideh, Pawel Romanczuk, Sian Thomas, Lutz Schimansky-Geier, Joseph J. Hale, Gabriel A. Miller, Gregory A. Sword, Stephen J. Simpson, and Iain D. Couzin. "Nutritional state and collective motion: from individuals to mass migration." Proceedings of the Royal Society B: Biological Sciences 278, no. 1704 (August 25, 2010): 356–63. http://dx.doi.org/10.1098/rspb.2010.1447.

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In order to move effectively in unpredictable or heterogeneous environments animals must make appropriate decisions in response to internal and external cues. Identifying the link between these components remains a challenge for movement ecology and is important in understanding the mechanisms driving both individual and collective motion. One accessible way of examining how internal state influences an individual's motion is to consider the nutritional state of an animal. Our experimental results reveal that nutritional state exerts a relatively minor influence on the motion of isolated indiv

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Clynen, Elke, Steven J. Husson, and Liliane Schoofs. "Identification of New Members of the (Short) Neuropeptide F Family in Locusts and Caenorhabditis elegans." Annals of the New York Academy of Sciences 1163, no. 1 (April 2009): 60–74. http://dx.doi.org/10.1111/j.1749-6632.2008.03624.x.

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Breugelmans, B., G. Simonet, V. van Hoef, I. Claeys, S. Van Soest, and J. Vanden Broeck. "Quantitative RT-PCR analysis of pacifastin-related precursor transcripts during the reproductive cycle of solitarious and gregarious desert locusts." Insect Molecular Biology 17, no. 2 (April 2008): 137–45. http://dx.doi.org/10.1111/j.1365-2583.2008.00793.x.

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Hou, Li, Beibei Li, Ding Ding, Le Kang, and Xianhui Wang. "CREB-B acts as a key mediator of NPF/NO pathway involved in phase-related locomotor plasticity in locusts." PLOS Genetics 15, no. 5 (May 31, 2019): e1008176. http://dx.doi.org/10.1371/journal.pgen.1008176.

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Rogers, Stephen M., and Swidbert R. Ott. "Differential activation of serotonergic neurons during short- and long-term gregarization of desert locusts." Proceedings of the Royal Society B: Biological Sciences 282, no. 1800 (February 7, 2015): 20142062. http://dx.doi.org/10.1098/rspb.2014.2062.

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Serotonin is a neurochemical with evolutionarily conserved roles in orchestrating nervous system function and behavioural plasticity. A dramatic example is the rapid transformation of desert locusts from cryptic asocial animals into gregarious crop pests that occurs when drought forces them to accumulate on dwindling resources, triggering a profound alteration of behaviour within just a few hours. The onset of crowding induces a surge in serotonin within their thoracic ganglia that is sufficient and necessary to induce the switch from solitarious to gregarious behaviour. To identify the neuron

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Bräunig, P., C. Allgäuer, and H. W. Honegger. "Suboesophageal DUM neurones are part of the antennal motor system of locusts and crickets." Experientia 46, no. 3 (March 1990): 259–61. http://dx.doi.org/10.1007/bf01951758.

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Robertson, R. M., and R. M. Olberg. "A comparison of the activity of flight interneurones in locusts, crickets, dragonflies and mayflies." Experientia 44, no. 9 (September 1988): 735–38. http://dx.doi.org/10.1007/bf01959144.

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Wegener, Gerhard, Romi Michel, and Eric A. Newsholme. "Fructose 2,6-bisphosphate as a signal for changing from sugar to lipid oxidation during flight in locusts." FEBS Letters 201, no. 1 (May 26, 1986): 129–32. http://dx.doi.org/10.1016/0014-5793(86)80584-1.

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Colgan, D. J., and D. A. Willcocks. "Host–parasite genome relationships in Acridid grasshoppers. II. Patterns of variation in the plasmids of gut bacteria of Caledia captiva and Locusta migratoria." Genome 29, no. 2 (April 1, 1987): 264–71. http://dx.doi.org/10.1139/g87-046.

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Plasmid preparations were made from 110 isolates of Enterobacter cloacae taken from the guts of members of the Caledia captiva complex of grasshoppers to ascertain whether a relationship exists between these extrachromosomal elements and taxonomic variation in the grasshoppers themselves. Fifty-two plasmids, distinguishable by mobility or restriction fragment pattern differences, were identified. Thirty-seven of these were similar in size. Five plasmids were nick translated and used to probe Southern blots. Only three instances of cross homology with another plasmid were found, implying a very

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Alkurashi, Mamdowh M., Sean T. May, Kenny Kong, Jaume Bacardit, David Haig, and Hany M. Elsheikha. "Susceptibility to experimental infection of the invertebrate locusts (Schistocerca gregaria) with the apicomplexan parasiteNeospora caninum." PeerJ 2 (December 2, 2014): e674. http://dx.doi.org/10.7717/peerj.674.

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Rillich, Jan, Paul A. Stevenson, and Hans-Joachim Pflueger. "Flight and Walking in Locusts–Cholinergic Co-Activation, Temporal Coupling and Its Modulation by Biogenic Amines." PLoS ONE 8, no. 5 (May 9, 2013): e62899. http://dx.doi.org/10.1371/journal.pone.0062899.

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Miller, Gabriel A., Fiona J. Clissold, David Mayntz, and Stephen J. Simpson. "Speed over efficiency: locusts select body temperatures that favour growth rate over efficient nutrient utilization." Proceedings of the Royal Society B: Biological Sciences 276, no. 1673 (July 22, 2009): 3581–89. http://dx.doi.org/10.1098/rspb.2009.1030.

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Ried, Katja, Thomas Müller, and Hans J. Briegel. "Modelling collective motion based on the principle of agency: General framework and the case of marching locusts." PLOS ONE 14, no. 2 (February 20, 2019): e0212044. http://dx.doi.org/10.1371/journal.pone.0212044.

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47

ZHU, WEI, PETER VERHAERT, CHRIS SHAW, AARON MAULE, ARNOLD LOOF, and HUBERT VAUDRY. "NPF Immunolocalization in Cockroaches and Locusts: Comparison of Antisera to Beetle, Tapeworm, and Pig NPY/NPF-Type Peptides." Annals of the New York Academy of Sciences 839, no. 1 TRENDS IN COM (May 1998): 625–27. http://dx.doi.org/10.1111/j.1749-6632.1998.tb10898.x.

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48

Teng, Zhao-Qian, and Le Kang. "EGG-HATCHING BENEFITS GAINED BY POLYANDROUS FEMALE LOCUSTS ARE NOT DUE TO THE FERTILIZATION ADVANTAGE OF NONSIBLING MALES." Evolution 61, no. 2 (February 2007): 470–76. http://dx.doi.org/10.1111/j.1558-5646.2007.00030.x.

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49

Liebrich, Walter, and Gerd Gäde. "Adipokinetic Neuropeptides and Flight Metabolism in Three Moth Species of the Families Sphingidae, Saturniidae and Bombycidae." Zeitschrift für Naturforschung C 50, no. 5-6 (June 1, 1995): 425–34. http://dx.doi.org/10.1515/znc-1995-5-614.

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Abstract (sommario):

Methanolic extracts from corpora cardiaca of three moth species, Hippoteon eson (Sphingidae), Imbrasia cytherea (Saturniidae) and Bombyx mori (Bombycidae) show adipokinetic activity in conspecific bioassays. Haemolymph carbohydrates in these moths are not affected. These extracts are also active in heterologous bioassays: haemolymph lipids are increased in Locusta migratoria, whereas a small effect on haemolymph carbohydrates was observed in Periplaneta americana. Therefore, locusts can be used to monitor adipokinetic activity in corpora cardiaca from moth extracts during isolation. The three

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50

Clarke, Angus. "Genetic imprinting in clinical genetics." Development 108, Supplement (April 1, 1990): 131–39. http://dx.doi.org/10.1242/dev.108.supplement.131.

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Abstract (sommario):

Genetic, and indeed genomic, imprinting does occur in humans. This is manifest at the level of the genome, the individual chromosome, subchromosomal region or fragile site, or the single locus. The best evidence at the single gene level comes from a consideration of familial tumour syndromes. Chromosomal imprinting effects are revealed when uniparental disomy occurs, as in the Prader-Willi syndrome and doubtless other sporadic, congenital anomaly syndromes. Genomic imprinting is manifest in the developmental defects of hydatidiform mole, teratoma and triploidy. Fragile (X) mental retardation s

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