Wings and halteres act as coupled dual oscillators in flies

Deora, Tanvi and Sane, Siddharth S and Sane, Sanjay P (2021) Wings and halteres act as coupled dual oscillators in flies. eLife, 10. ISSN 2050-084X

Preview

Text - Published Version Download (1MB) | Preview

Abstract

The mechanics of Dipteran thorax is dictated by a network of exoskeletal linkages that, when deformed by the flight muscles, generate coordinated wing movements. In Diptera, the forewings power flight, whereas the hindwings have evolved into specialized structures called halteres, which provide rapid mechanosensory feedback for flight stabilization. Although actuated by independent muscles, wing and haltere motion is precisely phase-coordinated at high frequencies. Because wingbeat frequency is a product of wing-thorax resonance, any wear-and-tear of wings or thorax should impair flight ability. How robust is the Dipteran flight system against such perturbations? Here, we show that wings and halteres are independently driven, coupled oscillators. We systematically reduced the wing length in flies and observed how wing-haltere synchronization was affected. The wing-wing system is a strongly coupled oscillator, whereas the wing-haltere system is weakly coupled through mechanical linkages that synchronize phase and frequency. Wing-haltere link acts in a unidirectional manner; altering wingbeat frequency affects haltere frequency, but not vice versa. Exoskeletal linkages are thus key morphological features of the Dipteran thorax that ensure wing-haltere synchrony, despite severe wing damage.

Item Type:	Article
Authors:	Deora, Tanvi and Sane, Siddharth S and Sane, Sanjay P
Document Language:	Language English
Subjects:	Natural Sciences > Life sciences; biology Natural Sciences > Life sciences; biology > Physiology & related subjects Natural Sciences > Animals (Zoology)
Divisions:	Azim Premji University - Bengaluru > School of Arts and Sciences
Full Text Status:	Public
URI:	http://publications.azimpremjiuniversity.edu.in/id/eprint/7158
Publisher URL:	https://doi.org/10.7554/eLife.53824

Actions (login required)

View Item