Hormonal regulation of thrips' molting and metamorphosis

蓟马属半变态种类，由幼虫直接发育成成虫，但在幼虫和成虫之间有一个静止和非取食的阶段，称为前蛹和蛹。因此，蓟马的变态方式与其他半变态或全变态的种类有很大的不同。激素对蓟马变态的调控机制尚不清楚。在这项研究中，我们分离的cDNA编码两个转录因子参与保幼激素信号在两个蓟马物种。根据这项研究的结果，我们推测了蓟马的变态是如何进化的。

Thrips are classified as one of the hemimetabolous species that develop directly from larva to adult, but there are quiescent and non-feeding stages called propupa and pupa between larval and adult stages. Thus, the manner of thrips' metamorphosis is quite different from other hemimetabolous or holometabolous species. The mechanism how thrips' metamorphosis is regulated by hormones has not yet been investigated. In this study, we isolated cDNAs encoding two transcription factors involved in juvenile hormone signaling in two thrips species. From the results of this study, we speculated how thrips' metamorphosis has evolved.