SENSORY REGULATION OF MALE MATING-BEHAVIOR IN CAENORHABDITIS-ELEGANS
SENSORY REGULATION OF MALE MATING-BEHAVIOR IN CAENORHABDITIS-ELEGANS
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DOI：
10.1016/0896-6273(95)90242-2
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发表时间：
1995-01-01
期刊：
影响因子：
16.2
通讯作者：
STERNBERG, PW
中科院分区：
文献类型：
--
作者：
LIU, KS;STERNBERG, PW
秀丽隐杆线虫雄性交配行为包括一系列步骤：对与雌雄同体接触的反应、沿着她的身体后退、转动她的头或尾巴、确定外阴的位置、将两个交配针插入外阴以及精子转移。通过消融男性特有的交配结构及其相关神经元，我们已经确定了参与每个步骤的感觉结构和神经元：感觉射线介导对接触和转动的反应；钩、泄殖腔后感器和骨针介导外阴位置；针状体还介导针状体插入并调节精子转移。一般来说，成功完成每个步骤都会使雄性处于接收路径中下一步的提示的位置。然而，高度的感官调节允许配偶独立执行一些步骤。
C. elegans male mating behavior comprises a series of steps: response to contact with the hermaphrodite, backing along her body, turning around her head or tail, location of the vulva, insertion of the two copulatory spicules into the vulva, and sperm transfer. By ablation of male-specific copulatory structures and their associated neurons, we have identified sensory structures and neurons that participate in each of these steps: the sensory rays mediate response to contact and turning; the hook, the postcloacal sensilla, and the spicules mediate vulva location; the spicules also mediate spicule insertion and regulate sperm transfer. Generally, successful completion of each step places the male in a position to receive a cue for the next step in the pathway. However, the high degree of sensory regulation allows the mate to execute some steps independently.