Ikeda H, Takabatake I, Sawada N
Behav Genet. 1980 Jul;10(4):361-75. doi: 10.1007/BF01065598.
Sound recordings of courtship in Drosophila mercatorum were analyzed with an oscilloscope. Sounds in this species consist of two kinds of pulses, referred to as the A and B sounds, respectively. These differ from each other in their oscilloscope pattern and in the behavior accompanying them. A comparative study of three strains from widely separated geographical regions (New York, El Salvador, and Hawaii) revealed significant differences among strains in the interpulse interval (ipi) of the A sound. The ipi of the B sound increased as it proceeded for New York and Hawaii males but not for males from El Salvador. These characteristics may influence mating success in interstrain crosses. The present results suggest that the first steps toward divergence in the nature of the sound are quantitative; this may affect the response threshold of the female. Genetic systems responsible for female receptivity may have been independently developed in the two sexes.
利用示波器对梅氏果蝇求偶的声音记录进行了分析。该物种的声音由两种脉冲组成，分别称为A声和B声。它们在示波器模式以及伴随的行为方面彼此不同。对来自广泛分离的地理区域（纽约、萨尔瓦多和夏威夷）的三个品系进行的比较研究表明，品系间A声的脉冲间隔（ipi）存在显著差异。纽约和夏威夷雄性的B声的ipi随着声音持续而增加，但萨尔瓦多雄性的B声的ipi没有增加。这些特征可能会影响品系间杂交的交配成功率。目前的结果表明，声音性质分化的最初步骤是定量的；这可能会影响雌性的反应阈值。负责雌性接受性的遗传系统可能在两性中独立发展。
