Yamada Y
Can J Genet Cytol. 1975 Dec;17(4):601-7. doi: 10.1139/g75-074.
Possible causes of asymmetrical direct and indirect selection responses in Tribolium which were observed in a series of various experiments have been investigated. In some experiments the pupae were weighed just after pupation and in others they were weighed on the 20th day of incubation. Weight loss between pupation time and the 20th day of incubation as well as systematic differences in weight between individuals, pupating at successive ages are considered to be responsible for the asymmetry. The concept of unconscious secondary selection was introduced to interpret the asymmetrics of realized heritability and genetic correlation observed in two-way selection experiments.
在一系列不同实验中观察到的赤拟谷盗不对称的直接和间接选择反应的可能原因已得到研究。在一些实验中，蛹化后立即对蛹进行称重，而在另一些实验中，在孵化第20天对蛹进行称重。蛹化时间到孵化第20天之间的体重减轻以及连续不同年龄蛹化的个体之间体重的系统差异被认为是造成这种不对称的原因。引入无意识二级选择的概念来解释在双向选择实验中观察到的实现遗传力和遗传相关性的不对称现象。
