Changes in dopamine levels and locomotor activity in response to selection on virgin lifespan in Drosophila melanogaster

2006 ◽  
Vol 127 (7) ◽  
pp. 610-617 ◽  
Author(s):  
C.J. Vermeulen ◽  
T.I.F.H. Cremers ◽  
B.H.C. Westerink ◽  
L. Van De Zande ◽  
R. Bijlsma
Keyword(s):  
Drosophila Melanogaster ◽  
Locomotor Activity ◽  
Response To Selection

Neuropeptide F immunoreactive clock neurons modify evening locomotor activity and free-running period in Drosophila melanogaster

2012 ◽  
Vol 520 (5) ◽  
pp. 970-987 ◽  
Author(s):  
Christiane Hermann ◽  
Taishi Yoshii ◽  
Verena Dusik ◽  
Charlotte Helfrich-Förster
Keyword(s):  
Drosophila Melanogaster ◽  
Locomotor Activity ◽  
Free Running ◽  
Neuropeptide F ◽  
Free Running Period

Evidences for Circadian Rhythmicity in the per° Mutant of Drosophila melanogaster

1987 ◽  
Vol 42 (11-12) ◽  
pp. 1335-1338 ◽  
Author(s):  
Charlotte Helfrich ◽  
Wolfgang Engelmann
Keyword(s):  
Drosophila Melanogaster ◽  
Locomotor Activity ◽  
Mutual Coupling ◽  
Phase Relationship ◽  
Limited Range ◽  
Central Clock ◽  
The Individual ◽  
Relationship Of ◽  
Per Gene ◽  
Oscillator Theory

per° Mutants of Drosophila melanogaster which are exposed to light-dark cycles (LD) with different Zeitgeber period (T) have a limited range of entrainment. Entrained flies show a characteristic phase relationship of activity to the LD which depends on the period of the driving cycle as expected by oscillator theory. Both facts are taken as evidence that per° possesses endogenous oscillators and that the per gene product is not concerned with central clock structures but rather might be responsible for the mutual coupling between the individual oscillators in a multioscillatory system controlling locomotor activity.

MUSHROOM BODY INFLUENCE ON LOCOMOTOR ACTIVITY AND CIRCADIAN RHYTHMS IN DROSOPHILA MELANOGASTER

2002 ◽  
Vol 16 (2) ◽  
pp. 73-109 ◽  
Author(s):  
CHARLOTTE HELFRICH-FÖRSTER ◽  
JÖRG WULF ◽  
J. STEVEN DE BELLE
Keyword(s):  
Drosophila Melanogaster ◽  
Locomotor Activity ◽  
Circadian Rhythms ◽  
Mushroom Body

Locomotor Activity in Drosophila Melanogaster Selected for Different Wing Lengths

1997 ◽  
Vol 48 (1) ◽  
pp. 27-37 ◽  
Author(s):  
Willem Scharloo ◽  
Gerdien De Jong ◽  
Estelle J.K. Noach
Keyword(s):  
Drosophila Melanogaster ◽  
Locomotor Activity

Locomotor activity rhythm in Drosophila melanogaster after 600 generations in an aperiodic environment

2002 ◽  
Vol 89 (11) ◽  
pp. 512-514 ◽  
Author(s):  
V. Sheeba ◽  
M. Chandrashekaran ◽  
Amitabh Joshi ◽  
Vijay Sharma
Keyword(s):  
Drosophila Melanogaster ◽  
Locomotor Activity ◽  
Activity Rhythm ◽  
Locomotor Activity Rhythm

Courtship song in Drosophila melanogaster: a differential effect on male–female locomotor activity

2004 ◽  
Vol 82 (8) ◽  
pp. 1258-1266 ◽  
Author(s):  
Solange Kowalski ◽  
Thierry Aubin ◽  
Jean-René Martin
Keyword(s):  
Drosophila Melanogaster ◽  
Locomotor Activity ◽  
Tracking System ◽  
Species Recognition ◽  
Courtship Song ◽  
Video Tracking ◽  
Activity Level ◽  
Sexual Stimulation ◽  
Video Tracking System ◽  
Accurate Quantification

The courtship song of male Drosophila melanogaster Meigen, 1830 is involved in species recognition and sexual stimulation. This signal is usually addressed to the female to reduce her locomotor activity, thereby facilitating copulation. However, no accurate quantification of her locomotion has been made. To examine the effect of courtship song on locomotor behaviour of both sexes, we used a video-tracking system that allowed for the quantification of two indicators of activity level: distance moved and movement duration. First, we showed that the broadcast of the courtship song alone produced no effect on female locomotion. Females reduced their locomotor activity only when acoustical stimulation was placed in a natural courtship context (i.e., in the presence of a male). This suggests that the sum of visual, tactile, acoustic, and chemical stimuli provided by the male may act together to trigger female receptivity. Second, our playback experiments showed a strong stimulating effect of courtship song (particularly of the pulse component) on the locomotor activity of isolated males, suggesting that this signal probably plays a role in male stimulation. Courtship song has an opposite effect on male/female locomotor activity in D. melanogaster.

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