Diverse prey capture strategies in teleost larvae DOI Open Access
Duncan S Mearns,

Sydney A Hunt,

Martin Schneider

et al.

Published: Feb. 10, 2025

Animal behavior is adapted to the sensory environment in which it evolved, while also being constrained by physical limits, evolutionary history, and developmental trajectories. The hunting of larval zebrafish ( Danio rerio ), a cyprinid native streams Eastern India, has been well characterized. However, unknown if complement sequence movements employed during prey capture universal across freshwater teleosts. Here, we explore syntax fish belonging clade Percomorpha , whose last common ancestor with cyprinids lived ∼240 million years ago. We compared four cichlid species from Lake Tanganyika endemic deep benthic parts lake Lepidiolamprologus attenuatus Lamprologus ocellatus Neolamprologus multifasciatus ) or inhabiting rivers Astatotilapia burtoni that medaka Oryzias latipes found rice paddies East Asia. Using high speed videography neural networks, tracked eye extracted swim kinematics larvae these five species. Notably, repertoire cichlids broader than zebrafish, but shares basic features, such as convergence, positioning centrally binocular visual field, discrete bouts, including two kinds strikes. In contrast, continuously, track monocularly without position laterally before capturing them side swing. This configuration kinematic motifs suggests may judge distance predominantly motion parallax, mainly use cues. Together, our study documents diversification locomotor oculomotor adaptations among teleost larvae.

Language: Английский

Unsupervised identification of the internal states that shape natural behavior DOI
Adam J. Calhoun, Jonathan W. Pillow, Mala Murthy

et al.

Nature Neuroscience, Journal Year: 2019, Volume and Issue: 22(12), P. 2040 - 2049

Published: Nov. 25, 2019

Language: Английский

Citations

188
Nested neural circuits generate distinct acoustic signals during Drosophila courtship DOI Creative Commons
Joshua L. Lillvis, Kaiyu Wang, Hiroshi Shiozaki

et al.

Current Biology, Journal Year: 2024, Volume and Issue: 34(4), P. 808 - 824.e6

Published: Jan. 30, 2024

Many motor control systems generate multiple movements using a common set of muscles. How are premotor circuits able to flexibly diverse movement patterns? Here, we characterize the neuronal that drive distinct courtship songs Drosophila melanogaster. Male flies vibrate their wings toward females produce two different song modes—pulse and sine song—which signal species identity male quality. Using cell-type-specific genetic reagents connectome, provide cellular synaptic map in ventral nerve cord these examine how activating or inhibiting each cell type within affects song. Our data reveal circuit is organized into nested feedforward pathways with extensive reciprocal feedback connections. The larger network produces pulse song, more complex ancestral form. A subset this simpler recent Such organization may be feature which evolution has layered increasing flexibility onto basic pattern.

Language: Английский

Citations

21
Changes in the cellular makeup of motor patterning circuits drive courtship song evolution in Drosophila DOI
Dajia Ye, Justin Walsh, Ian P. Junker

et al.

Current Biology, Journal Year: 2024, Volume and Issue: 34(11), P. 2319 - 2329.e6

Published: April 29, 2024

Language: Английский

Citations

16
Neurons that Function within an Integrator to Promote a Persistent Behavioral State in Drosophila DOI Creative Commons

Yonil Jung,

Ann Kennedy, Hui Chiu

et al.

Neuron, Journal Year: 2019, Volume and Issue: 105(2), P. 322 - 333.e5

Published: Dec. 3, 2019

Language: Английский

Citations

96
Evolution of genome structure in theDrosophila simulansspecies complex DOI Creative Commons
Mahul Chakraborty, Ching-Ho Chang, Danielle E. Khost

et al.

Genome Research, Journal Year: 2021, Volume and Issue: 31(3), P. 380 - 396

Published: Feb. 9, 2021

The rapid evolution of repetitive DNA sequences, including satellite DNA, tandem duplications, and transposable elements, underlies phenotypic contributes to hybrid incompatibilities between species. However, genomic regions are fragmented misassembled in most contemporary genome assemblies. We generated highly contiguous de novo reference genomes for the Drosophila simulans species complex ( D. , mauritiana sechellia ), which speciated ∼250,000 yr ago. Our assemblies comparable contiguity accuracy current melanogaster genome, allowing us directly compare sequences these four find that at least 15% fail align uniquely owing structural divergence—twice number single-nucleotide substitutions. also turnover extensive divergence heterochromatic regions, whereas euchromatic gene content is mostly conserved. Despite overall preservation synteny, euchromatin each has been shaped by clade- species-specific inversions, expansions contractions tRNA arrays, duplications. among Y-linked genes, copy variation recent duplications from autosomes. provide a valuable resource studying its consequences genetic model

Language: Английский

Citations

92
Expanding evolutionary neuroscience: insights from comparing variation in behavior DOI Creative Commons
Nicholas Jourjine, Hopi E. Hoekstra

Neuron, Journal Year: 2021, Volume and Issue: 109(7), P. 1084 - 1099

Published: Feb. 21, 2021

Neuroscientists have long studied species with convenient biological features to discover how behavior emerges from conserved molecular, neural, and circuit level processes. With the advent of new tools, viral vectors gene editing automated behavioral analyses, there has been a recent wave interest in developing new, "nontraditional" model species. Here, we advocate for complementary approach development, that is, clade as way integrate an evolutionary comparative neurobiological experiments. Capitalizing on natural variation investing experimental tools clades will be valuable strategy next generation neuroscience discovery.

Language: Английский

Citations

90
Evolution of central neural circuits: state of the art and perspectives DOI
Ruairí J.V. Roberts, Sînziana Pop, Lucia L. Prieto-Godino

et al.

Nature reviews. Neuroscience, Journal Year: 2022, Volume and Issue: 23(12), P. 725 - 743

Published: Oct. 26, 2022

Language: Английский

Citations

67
Fast and accurate annotation of acoustic signals with deep neural networks DOI Creative Commons
Elsa Steinfath, Adrian Palacios-Muñoz, Julian R Rottschäfer

et al.

eLife, Journal Year: 2021, Volume and Issue: 10

Published: Nov. 1, 2021

Acoustic signals serve communication within and across species throughout the animal kingdom. Studying genetics, evolution, neurobiology of acoustic requires annotating signals: segmenting identifying individual elements like syllables or sound pulses. To be useful, annotations need to accurate, robust noise, fast. We here introduce DeepAudioSegmenter ( DAS) , a method that annotates based on deep-learning derived hierarchical presentation sound. demonstrate accuracy, robustness, speed DAS using with diverse characteristics from insects, birds, mammals. comes graphical user interface for song, training network, generating proofreading annotations. The can trained annotate new little manual annotation combined unsupervised methods discover novel signal types. song high throughput low latency experimental interventions in realtime. Overall, is universal, versatile, accessible tool signals.

Language: Английский

Citations

60
Flexible neural control of transition points within the egg-laying behavioral sequence in Drosophila DOI Creative Commons
Kevin M. Cury, Richard Axel

Nature Neuroscience, Journal Year: 2023, Volume and Issue: 26(6), P. 1054 - 1067

Published: May 22, 2023

Abstract Innate behaviors are frequently comprised of ordered sequences component actions that progress to satisfy essential drives. Progression is governed by specialized sensory cues induce transitions between components within the appropriate context. Here we have characterized structure egg-laying behavioral sequence in Drosophila and found significant variability affords organism an adaptive flexibility. We identified distinct classes interoceptive exteroceptive neurons control timing direction terminal sequence. also a pair motor enact final transition egg expulsion. These results provide logic for organization innate behavior which information processed at critical junctures allows flexible adjustments drives across varied internal external environments.

Language: Английский

Citations

26
Discovery of a New Song Mode in Drosophila Reveals Hidden Structure in the Sensory and Neural Drivers of Behavior DOI Creative Commons
Jan Clemens, Philip Coen, Frederic A. Roemschied

et al.

Current Biology, Journal Year: 2018, Volume and Issue: 28(15), P. 2400 - 2412.e6

Published: July 26, 2018

Deciphering how brains generate behavior depends critically on an accurate description of behavior. If distinct behaviors are lumped together, separate modes brain activity can be wrongly attributed to the same Alternatively, if a single is split into two, neural appear produce different behaviors. Here, we address this issue in context acoustic communication Drosophila. During courtship, males vibrate their wings time-varying songs, and females evaluate songs inform mating decisions. For 50 years, Drosophila melanogaster song was thought consist only two modes, sine pulse, but using unsupervised classification methods large datasets recordings, now establish existence at least three modes: pulse types, along with mode. We show seemingly subtle distinction affects our interpretation mechanisms underlying production perception. Specifically, that visual feedback influences probability producing each mode male choice female responses contributes modulating his amplitude distance. At level, demonstrate four neuron types within fly's pathway differentially Our results highlight importance carefully segmenting map sensory, neural, genetic mechanisms.

Language: Английский

Citations

72