Kim Y K, Ehrman L, Koepfer H R
Biology Department, Queens College, Flushing, New York 11367.
Behav Genet. 1992 Sep;22(5):545-56. doi: 10.1007/BF01074307.
We present results deriving from the inception of an investigation (involving 4,000 scored matings) into the development of discriminatory behavior in Drosophila paulistorum. We examined two complementary situations for their effects on mating behavior: physical isolation (seclusion) beginning at each of six developmental stages and exposure to heterosemispecifics during all preadult stages (mixed culturing). Preadult seclusion at certain stages decreased sexual isolation between three of four semispecific pairs. Seclusion effect, or lack thereof, varied with semispecies and with the stage at which seclusion was imposed: the earlier the stage at which seclusion was initiated, the more drastic the effect. In contrast, mixed culturing increased sexual isolation between the one pair of semispecies that was tested.
我们展示了一项关于多氏果蝇（Drosophila paulistorum）辨别行为发展的调查（涉及4000次有记录的交配）初期所获得的结果。我们研究了两种互补情况对交配行为的影响：从六个发育阶段中的每个阶段开始进行物理隔离（隔绝），以及在所有成虫前期阶段接触异种半种（混合培养）。在某些阶段进行成虫前期隔绝降低了四对半种对中三对的性隔离。隔绝效应或无隔绝效应随半种以及施加隔绝的阶段而变化：开始隔绝的阶段越早，效应越显著。相比之下，混合培养增加了所测试的一对半种之间的性隔离。
