Abstract
When facing a sudden danger or aversive condition while engaged in on-going forward motion, animals transiently slow down and make a turn to escape. The neural mechanisms underlying stimulation-induced deceleration in avoidance behavior are largely unknown. Here, we report that in Drosophila larvae, light-induced deceleration was commanded by a continuous neural pathway that included prothoracicotropic hormone neurons, eclosion hormone neurons, and tyrosine decarboxylase 2 motor neurons (the PET pathway). Inhibiting neurons in the PET pathway led to defects in light-avoidance due to insufficient deceleration and head casting. On the other hand, activation of PET pathway neurons specifically caused immediate deceleration in larval locomotion. Our findings reveal a neural substrate for the emergent deceleration response and provide a new understanding of the relationship between behavioral modules in animal avoidance responses.
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References
Bidaye SS, Machacek C, Wu Y, Dickson BJ. Neuronal control of Drosophila walking direction. Science 2014, 344: 97–101.
Sen R, Wu M, Branson K, Robie A, Rubin GM, Dickson BJ. Moonwalker Descending Neurons Mediate Visually Evoked Retreat in Drosophila. Curr Biol 2017, 27: 766–771.
von Reyn CR, Breads P, Peek MY, Zheng GZ, Williamson WR, Yee AL, et al. A spike-timing mechanism for action selection. Nat Neurosci 2014, 17: 962–970.
von Reyn CR, Nern A, Williamson WR, Breads P, Wu M, Namiki S, et al. Feature Integration Drives Probabilistic Behavior in the Drosophila Escape Response. Neuron 2017, 94: 1190–1204 e1196.
Wu M, Nern A, Williamson WR, Morimoto MM, Reiser MB, Card GM, et al. Visual projection neurons in the Drosophila lobula link feature detection to distinct behavioral programs. Elife 2016, 5.
Gomez-Marin A, Stephens GJ, Louis M. Active sampling and decision making in Drosophila chemotaxis. Nat Commun 2011, 2: 441.
Lahiri S, Shen K, Klein M, Tang A, Kane E, Gershow M, et al. Two alternating motor programs drive navigation in Drosophila larva. PLoS One 2011, 6: e23180.
Kane EA, Gershow M, Afonso B, Larderet I, Klein M, Carter AR, et al. Sensorimotor structure of Drosophila larva phototaxis. Proc Natl Acad Sci U S A 2013, 110: E3868–3877.
Tastekin I, Riedl J, Schilling-Kurz V, Gomez-Marin A, Truman JW, Louis M. Role of the subesophageal zone in sensorimotor control of orientation in Drosophila larva. Curr Biol 2015, 25: 1448–1460.
Grillner S. Biological pattern generation: the cellular and computational logic of networks in motion. Neuron 2006, 52: 751–766.
Grillner S, Robertson B. The basal ganglia downstream control of brainstem motor centres-an evolutionarily conserved strategy. Curr Opin Neurobiol 2015, 33: 47–52.
Kiehn O. Decoding the organization of spinal circuits that control locomotion. Nat Rev Neurosci 2016, 17: 224–238.
Ryczko D, Auclair F, Cabelguen JM, Dubuc R. The mesencephalic locomotor region sends a bilateral glutamatergic drive to hindbrain reticulospinal neurons in a tetrapod. J Comp Neurol 2016, 524: 1361–1383.
Caggiano V, Leiras R, Goni-Erro H, Masini D, Bellardita C, Bouvier J, et al. Midbrain circuits that set locomotor speed and gait selection. Nature 2018, 553: 455–460.
Kernan M, Cowan D, Zuker C. Genetic dissection of mechanosensory transduction: mechanoreception-defective mutations of Drosophila. Neuron 1994, 12: 1195–1206.
Perrins R, Walford A, Roberts A. Sensory activation and role of inhibitory reticulospinal neurons that stop swimming in hatchling frog tadpoles. J Neurosci 2002, 22: 4229–4240.
Bouvier J, Caggiano V, Leiras R, Caldeira V, Bellardita C, Balueva K, et al. Descending Command Neurons in the Brainstem that Halt Locomotion. Cell 2015, 163: 1191–1203.
Juvin L, Gratsch S, Trillaud-Doppia E, Gariepy JF, Buschges A, Dubuc R. A Specific Population of Reticulospinal Neurons Controls the Termination of Locomotion. Cell Rep 2016, 15: 2377–2386.
Zhao W, Gong C, Ouyang Z, Wang P, Wang J, Zhou P, et al. Turns with multiple and single head cast mediate Drosophila larval light avoidance. PLoS One 2017, 12: e0181193.
Gershow M, Berck M, Mathew D, Luo L, Kane EA, Carlson JR, et al. Controlling airborne cues to study small animal navigation. Nat Methods 2012, 9: 290–296.
Xiang Y, Yuan Q, Vogt N, Looger LL, Jan LY, Jan YN. Light-avoidance-mediating photoreceptors tile the Drosophila larval body wall. Nature 2010, 468: 921–926.
Mazzoni EO, Desplan C, Blau J. Circadian pacemaker neurons transmit and modulate visual information to control a rapid behavioral response. Neuron 2005, 45: 293–300.
Collins B, Kane EA, Reeves DC, Akabas MH, Blau J. Balance of activity between LN(v)s and glutamatergic dorsal clock neurons promotes robust circadian rhythms in Drosophila. Neuron 2012, 74: 706–718.
Keene AC, Sprecher SG. Seeing the light: photobehavior in fruit fly larvae. Trends Neurosci 2012, 35: 104–110.
Gong Z, Liu J, Guo C, Zhou Y, Teng Y, Liu L. Two pairs of neurons in the central brain control Drosophila innate light preference. Science 2010, 330: 499–502.
Yamanaka N, Romero NM, Martin FA, Rewitz KF, Sun M, O’Connor MB, et al. Neuroendocrine control of Drosophila larval light preference. Science 2013, 341: 1113–1116.
Selcho M, Millan C, Palacios-Munoz A, Ruf F, Ubillo L, Chen J, et al. Central and peripheral clocks are coupled by a neuropeptide pathway in Drosophila. Nat Commun 2017, 8: 15563.
McBrayer Z, Ono H, Shimell M, Parvy JP, Beckstead RB, Warren JT, et al. Prothoracicotropic hormone regulates developmental timing and body size in Drosophila. Dev Cell 2007, 13: 857–871.
Hicheur H, Vieilledent S, Richardson MJ, Flash T, Berthoz A. Velocity and curvature in human locomotion along complex curved paths: a comparison with hand movements. Exp Brain Res 2005, 162: 145–154.
Zago M, Lacquaniti F, Gomez-Marin A. The speed-curvature power law in Drosophila larval locomotion. Biol Lett 2016, 12.
McNabb SL, Baker JD, Agapite J, Steller H, Riddiford LM, Truman JW. Disruption of a behavioral sequence by targeted death of peptidergic neurons in Drosophila. Neuron 1997, 19: 813–823.
Zhang YQ, Rodesch CK, Broadie K. Living synaptic vesicle marker: synaptotagmin-GFP. Genesis 2002, 34: 142–145.
Nicolai LJ, Ramaekers A, Raemaekers T, Drozdzecki A, Mauss AS, Yan J, et al. Genetically encoded dendritic marker sheds light on neuronal connectivity in Drosophila. Proc Natl Acad Sci U S A 2010, 107: 20553–20558.
Feinberg EH, Vanhoven MK, Bendesky A, Wang G, Fetter RD, Shen K, et al. GFP Reconstitution Across Synaptic Partners (GRASP) defines cell contacts and synapses in living nervous systems. Neuron 2008, 57: 353–363.
Gordon MD, Scott K. Motor control in a Drosophila taste circuit. Neuron 2009, 61: 373–384.
Shepherd GM. Symposium overview and historical perspective: dendrodendritic synapses: past, present, and future. Ann N Y Acad Sci 2009, 1170: 215–223.
Urban NN, Arevian AC. Computing with dendrodendritic synapses in the olfactory bulb. Ann N Y Acad Sci 2009, 1170: 264–269.
Sweeney ST, Broadie K, Keane J, Niemann H, O’Kane CJ. Targeted expression of tetanus toxin light chain in Drosophila specifically eliminates synaptic transmission and causes behavioral defects. Neuron 1995, 14: 341–351.
Nitabach MN, Blau J, Holmes TC. Electrical silencing of Drosophila pacemaker neurons stops the free-running circadian clock. Cell 2002, 109: 485–495.
McGuire SE, Roman G, Davis RL. Gene expression systems in Drosophila: a synthesis of time and space. Trends Genet 2004, 20: 384–391.
Nitabach MN, Wu Y, Sheeba V, Lemon WC, Strumbos J, Zelensky PK, et al. Electrical hyperexcitation of lateral ventral pacemaker neurons desynchronizes downstream circadian oscillators in the fly circadian circuit and induces multiple behavioral periods. J Neurosci 2006, 26: 479–489.
Akerboom J, Carreras Calderon N, Tian L, Wabnig S, Prigge M, Tolo J, et al. Genetically encoded calcium indicators for multi-color neural activity imaging and combination with optogenetics. Front Mol Neurosci 2013, 6: 2.
Chen TW, Wardill TJ, Sun Y, Pulver SR, Renninger SL, Baohan A, et al. Ultrasensitive fluorescent proteins for imaging neuronal activity. Nature 2013, 499: 295–300.
Selcho M, Pauls D, El Jundi B, Stocker RF, Thum AS. The role of octopamine and tyramine in Drosophila larval locomotion. J Comp Neurol 2012, 520: 3764–3785.
Yue Fei, Dikai Zhu. Repeated failure in reward pursuit alters innate drosophila larval behaviors. Neurosci Bull 2018, 34(6):901–911.
Berni J, Pulver SR, Griffith LC, Bate M. Autonomous circuitry for substrate exploration in freely moving Drosophila larvae. Curr Biol 2012, 22: 1861–1870.
Klapoetke NC, Murata Y, Kim SS, Pulver SR, Birdsey-Benson A, Cho YK, et al. Independent optical excitation of distinct neural populations. Nat Methods 2014, 11: 338–346.
Saraswati S, Fox LE, Soll DR, Wu CF. Tyramine and octopamine have opposite effects on the locomotion of Drosophila larvae. J Neurobiol 2004, 58: 425–441.
Fox LE, Soll DR, Wu CF. Coordination and modulation of locomotion pattern generators in Drosophila larvae: effects of altered biogenic amine levels by the tyramine beta hydroxlyase mutation. J Neurosci 2006, 26: 1486–1498.
Kohsaka H, Takasu E, Morimoto T, Nose A. A group of segmental premotor interneurons regulates the speed of axial locomotion in Drosophila larvae. Curr Biol 2014, 24: 2632–2642.
Itakura Y, Kohsaka H, Ohyama T, Zlatic M, Pulver SR, Nose A. Identification of Inhibitory Premotor Interneurons Activated at a Late Phase in a Motor Cycle during Drosophila Larval Locomotion. PLoS One 2015, 10: e0136660.
Matsunaga T, Kohsaka H, Nose A. Gap Junction-Mediated Signaling from Motor Neurons Regulates Motor Generation in the Central Circuits of Larval Drosophila. J Neurosci 2017, 37: 2045–2060.
Prendergast A, Wyart C. Locomotion: Electrical Coupling of Motor and Premotor Neurons. Curr Biol 2016, 26: R235–237.
Song J, Ampatzis K, Bjornfors ER, El Manira A. Motor neurons control locomotor circuit function retrogradely via gap junctions. Nature 2016, 529: 399–402.
Acknowledgements
We thank Mathieu Louis for sharing free SOS codes; Michael O’Cornor for PTTH-Gal4; Berni Jimena for tsh-Gal80; and Xiaohui Zhang, Chao Tong, Xiaohang Yang, Liming Wang, and Yijun Liu for sharing reagents and valuable discussions. We also thank the Bloomington Drosophila Stock Center and Qinghua Drosophila Stock Center for providing the fly stocks, and the core facilities of Zhejiang University School of Medicine for technical support. This work was supported by grants from the National Basic Research Development Program of China (973 Program, 2013CB945603), the National Natural Science Foundation of China (31070944, 31271147, 31471063, 31671074, and 61572433), the Natural Science Foundation of Zhejiang Province, China (LR13C090001 and LZ14F020002), and the Fundamental Research Funds for the Central Universities, China (2017FZA7003).
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Gong, C., Ouyang, Z., Zhao, W. et al. A Neuronal Pathway that Commands Deceleration in Drosophila Larval Light-Avoidance. Neurosci. Bull. 35, 959–968 (2019). https://doi.org/10.1007/s12264-019-00349-w
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DOI: https://doi.org/10.1007/s12264-019-00349-w