Interspecies variation of larval locomotion kinematics in the genus<i>Drosophila</i>and its relation to habitat temperature

Matsuo, Yuji; Nose, Akinao; Kohsaka, Hiroshi

doi:10.1101/2020.11.06.371120

Cited by 2 publications

(3 citation statements)

References 96 publications

(180 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Although larvae of the eight species considered in the present study (Figure 2A) do not show major morphological differences, their locomotor behaviors vary considerably, particularly with respect to their turn rates (Figure 4B). This observation is consistent with the results of a recent screen of larval locomotion in the genus Drosophila (Matsuo, Nose et al 2020). In unstimulated conditions, species can be grouped into "non-turners" and "turners" (Figure 4B, left).…”

Section: Species-specific Variability In Locomotor Speed and The Control Of Turning Maneuverssupporting

confidence: 91%

Inter-species comparison of the orientation algorithm directing larval chemotaxis in the genus Drosophila

Fink

Louis

2021

Preprint

View full text Add to dashboard Cite

Animals differ in their appearances and behaviors. While many genetic studies have addressed the origins of phenotypic differences between fly species, we are still lacking a quantitative assessment of the variability in the way different fly species behave. We tackled this question in one of the most robust behaviors displayed by Drosophila: chemotaxis. At the larval stage, Drosophila melanogaster navigate odor gradients by combining four sensorimotor routines in a multilayered algorithm: a modulation of the overall locomotor speed and turn rate; a bias in turning during down-gradient motion; a bias in turning toward the gradient; the local curl of trajectories toward the gradient ("weathervaning"). Using high-resolution tracking and behavioral quantification, we characterized the olfactory behavior of eight closely related species of the Drosophila group in response to 19 ecologically-relevant odors. Significant changes are observed in the receptive field of each species, which is consistent with the rapid evolution of the peripheral olfactory system. Our results reveal substantial inter-species variability in the algorithms directing larval chemotaxis. While the basic sensorimotor routines are shared, their parametric arrangements can vary dramatically across species. The present analysis sets the stage for deciphering the evolutionary relationships between the structure and function of neural circuits directing orientation behaviors in Drosophila.

show abstract

Section: Species-specific Variability In Locomotor Speed and The Control Of Turning Maneuverssupporting

confidence: 91%

Inter-species comparison of the orientation algorithm directing larval chemotaxis in the genus Drosophila

Fink

Louis

2021

Preprint

View full text Add to dashboard Cite

show abstract

“…We noticed that this observation could allow us to predict neural circuits for fly larval crawling. A recent study reported an inter-specific variation in crawling speed among eleven species in the genus Drosophila (57). This study showed that some sister species crawled faster than Drosophila melanogaster , and the others locomoted slower.…”

Section: Resultsmentioning

confidence: 99%

“…The average and standard error mean of speed in species in the genus Drosophila are shown by solid lines and shaded area, respectively. The speed data was calculated from data in (57).…”

Section: Resultsmentioning

confidence: 99%

A neuromechanical model forDrosophilalarval crawling based on physical measurements

Sun

Liu

et al. 2020

Preprint

Self Cite

View full text Add to dashboard Cite

Animal locomotion requires dynamic interactions between neural circuits, muscles, and surrounding environments. In contrast to intensive studies on neural circuits, the neuromechanical basis for animal behaviour remains unclear due to the lack of information on the physical properties of animals. Here, taking Drosophila larvae as a model system, we proposed an integrated neuromechanical model based on physical measurements. The physical parameters were obtained by a stress-relaxation assay, and the neural circuit motif was extracted from a chain of excitatory and inhibitory interneurons, which was identified previously by connectomics. Based on the model, we systematically performed perturbation analyses on the parameters in the model to study their kinematic effects on locomotion performance. We found that modification of most of the parameters in the simulation could increase the speed of locomotion. Our physical measurement and modelling would provide a new framework for neural circuit studies and soft robot engineering.

show abstract

Interspecies variation of larval locomotion kinematics in the genusDrosophilaand its relation to habitat temperature

Cited by 2 publications

References 96 publications

Inter-species comparison of the orientation algorithm directing larval chemotaxis in the genus Drosophila

Inter-species comparison of the orientation algorithm directing larval chemotaxis in the genus Drosophila

A neuromechanical model forDrosophilalarval crawling based on physical measurements

Contact Info

Product

Resources

About