Seiger M B, Kuzujanakis M
Department of Biological Sciences, Wright State University, Dayton, OH 45435.
Hereditas. 1992;117(3):223-30. doi: 10.1111/j.1601-5223.1992.tb00018.x.
On the assumption that the survival of a parthenogenetic strain in nature relies on the strain's ability to compete with the bisexual population, we attempted to discern any diminution of competition between bisexual strains of Drosophila and parthenogenetic strains derived from them on the basis of light intensity preferences in choosing an oviposition site. Four different experiential conditions were imposed on each strain prior to testing for light intensity preferences for an oviposition site. Most light responses are significantly different in each strain for the four experiences. There are also significant differences among the bisexual, unisexual and F1 females of a given strain and between strains. Further experiments were performed to determine light preferences during oviposition when unisexual and bisexual females were in direct competition. In only one comparison were their light preferences significantly different. All strains were unique in their overall behavioral spectra.
基于孤雌生殖品系在自然界中的生存依赖于其与两性种群竞争能力的假设，我们试图根据果蝇两性品系及其衍生的孤雌生殖品系在选择产卵地点时对光照强度的偏好，来辨别它们之间竞争能力的任何减弱。在测试对产卵地点的光照强度偏好之前，对每个品系施加了四种不同的实验条件。对于这四种实验条件，每个品系的大多数光照反应都有显著差异。在给定品系的两性、单性和F1雌性之间以及不同品系之间也存在显著差异。我们还进行了进一步的实验，以确定单性和两性雌性直接竞争时产卵期间的光照偏好。只有一组比较中它们的光照偏好存在显著差异。所有品系在其整体行为谱上都是独特的。
