Sexual behavior is a routine among animal species. Sexual experience has several behavioral consequences in insects, but its physiological basis is less well-understood. The episodic motor activity with a periodicity around 19 s was unintentionally observed in the wildtype Canton-S flies and was greatly reduced in the white-eyed mutant w1118 flies. Episodic motor activity co-exists with several consistent locomotor performances in Canton-S flies whereas reduced episodic motor activity is accompanied by neural or behavioral abnormalities in w1118 flies. The improvements of both episodic motor activity and locomotor performance are co-inducible by a pulsed light illumination in w1118. Here we show that mating experience of w1118 males promoted fast and consistent locomotor activities and increased the power of episodic motor activities. Compared with virgin males, mated ones showed significant increases of boundary preference, travel distance over 60 s, and increased path increments per 0.2 s. In contrast, mated males of Canton-S showed decreased boundary preference, increased travel distance over 60 s, and increased path increments per 0.2 s. Additionally, mated males of w1118 displayed increased power amplitude of periodic motor activities at 0.03-0.1 Hz. These data indicated that mating experience promoted fast and consistent locomotion and improved episodic motor activities in w1118 male flies.

中文翻译：

---

交配经验改变了黑腹果蝇的运动性能并促进了偶发性运动活动

性行为是动物物种之间的惯例。性经验对昆虫有几种行为后果，但其生理基础尚不清楚。在野生型 Canton-S 果蝇中无意中观察到周期性约 19 s 的间歇性运动活动，并且在白眼突变体 w1118 果蝇中大大减少。在 Canton-S 果蝇中，偶发性运动活动与几种一致的运动表现共存，而在 w1118 果蝇中，偶发性运动活动减少伴随着神经或行为异常。w1118 中的脉冲光照明可以共同诱导偶发性运动活动和运动性能的改善。在这里，我们表明 w1118 雄性的交配经验促进了快速和一致的运动活动，并增加了偶发性运动活动的力量。与处女雄性相比，交配的雄性表现出边界偏好显着增加，行进距离超过 60 秒，并且每 0.2 秒的路径增量增加。相比之下，Canton-S 的交配雄性表现出减少的边界偏好，增加了超过 60 秒的旅行距离，以及每 0.2 秒增加的路径增量。此外，w1118 的交配雄性在 0.03-0.1 Hz 时表现出周期性运动活动的功率幅度增加。这些数据表明，交配经验促进了 w1118 雄性果蝇的快速和一致的运动，并改善了偶发性运动活动。并且每 0.2 秒增加路径增量。此外，w1118 的交配雄性在 0.03-0.1 Hz 时表现出周期性运动活动的功率幅度增加。这些数据表明，交配经验促进了 w1118 雄性果蝇的快速和一致的运动，并改善了偶发性运动活动。并且每 0.2 秒增加路径增量。此外，w1118 的交配雄性在 0.03-0.1 Hz 时显示出周期性运动活动的功率幅度增加。这些数据表明，交配经验促进了 w1118 雄性果蝇的快速和一致的运动，并改善了偶发性运动活动。