Rand M S, Crews D
Department of Zoology, University of Texas at Austin 78712.
Brain Res. 1994 Nov 7;663(1):163-7. doi: 10.1016/0006-8993(94)90474-x.
The parthenogenetic lizard Cnemidophorus uniparens alternates in the display of male-like and female-like sexual behavior, providing a unique opportunity for determining the neuronal circuits subserving gender-typical sexual behavior within a single sex. Here we report a 6-fold greater [14C]2-fluoro-2-deoxyglucose uptake in the medial preoptic area of C. uniparens displaying male-like behavior in comparison with C. uniparens displaying female-like receptivity. The ventromedial nucleus of the hypothalamus showed greater 2DG accumulation in receptive C. uniparens than in courting C. uniparens. When a related sexual species (C. inornatus) was compared to the unisexual species, the anterior hypothalamus in C. inornatus males exhibited significantly greater activity.
孤雌生殖的鞭尾蜥（Cnemidophorus uniparens）会交替表现出类似雄性和类似雌性的性行为，这为确定单一性别内维持典型性别性行为的神经回路提供了独特的机会。在此我们报告，与表现出类似雌性接受行为的鞭尾蜥相比，表现出类似雄性行为的鞭尾蜥视前内侧区的[14C]2-氟-2-脱氧葡萄糖摄取量高6倍。下丘脑腹内侧核在处于接受状态的鞭尾蜥中比在求偶的鞭尾蜥中显示出更多的2-脱氧葡萄糖积累。当将一种相关的有性生殖物种（C. inornatus）与这种单性生殖物种进行比较时，C. inornatus雄性的下丘脑前部表现出明显更高的活性。
