跳转至内容
Merck
CN
  • Circuit and Behavioral Mechanisms of Sexual Rejection by Drosophila Females.

Circuit and Behavioral Mechanisms of Sexual Rejection by Drosophila Females.

Current biology : CB (2020-08-17)
Fei Wang, Kaiyu Wang, Nora Forknall, Ruchi Parekh, Barry J Dickson
摘要

The mating decisions of Drosophila melanogaster females are primarily revealed through either of two discrete actions: opening of the vaginal plates to allow copulation, or extrusion of the ovipositor to reject the male. Both actions are triggered by the male courtship song, and both are dependent upon the female's mating status. Virgin females are more likely to open their vaginal plates in response to song; mated females are more likely to extrude their ovipositor. Here, we examine the neural cause and behavioral consequence of ovipositor extrusion. We show that the DNp13 descending neurons act as command-type neurons for ovipositor extrusion, and that ovipositor extrusion is an effective deterrent only when performed by females that have previously mated. The DNp13 neurons respond to male song via direct synaptic input from the pC2l auditory neurons. Mating status does not modulate the song responses of DNp13 neurons, but rather how effectively they can engage the motor circuits for ovipositor extrusion. We present evidence that mating status information is mediated by ppk+ sensory neurons in the uterus, which are activated upon ovulation. Vaginal plate opening and ovipositor extrusion are thus controlled by anatomically and functionally distinct circuits, highlighting the diversity of neural decision-making circuits even in the context of closely related behaviors with shared exteroceptive and interoceptive inputs.

材料
货号
品牌
产品描述

Sigma-Aldrich
氯化钠, ACS reagent, ≥99.0%
货号
包装规格
是否有货
价格
数量
Sigma-Aldrich
D -(+)-葡萄糖, ≥99.5% (GC)
货号
包装规格
是否有货
价格
数量
Sigma-Aldrich
碳酸氢钠, powder, BioReagent, for molecular biology, suitable for cell culture, suitable for insect cell culture
货号
包装规格
是否有货
价格
数量
Sigma-Aldrich
氯化钙 溶液, BioUltra, for molecular biology, ~1 M in H2O
货号
包装规格
是否有货
价格
数量
Sigma-Aldrich
全反式视黄醛, powder, ≥98%
货号
包装规格
是否有货
价格
数量
Sigma-Aldrich
Tris 乙磺酸, ≥99% (titration)
货号
包装规格
是否有货
价格
数量
Sigma-Aldrich
氯化钾, BioXtra, ≥99.0%
货号
包装规格
是否有货
价格
数量
Sigma-Aldrich
磷酸钠 一元, BioXtra, ≥99.0%
货号
包装规格
是否有货
价格
数量