Systematic Entomology, School of Agriculture, Hokkaido University, Sapporo, Japan.
J Morphol. 2022 Aug;283(8):1106-1119. doi: 10.1002/jmor.21492. Epub 2022 Jul 18.
The thoracic musculature of the insect order Psocodea has been examined in only a few species of a single suborder to date. In the present study, we examined the thoracic musculature of species selected from all three suborders of Psocodea to elucidate the ground plan of the order and to examine the phylogenetic utility of the character system. The sister-group relationship between the suborders Troctomorpha and Psocomorpha received support from two novel nonhomoplasious synapomorphies, although the support from other morphological characters for this relationship is ambiguous. The sister-group relationship between the infraorders Epipsocetae and Psocetae also received support from one nonhomoplasious synapomorphy, although no other morphological characters supporting this relationship have been identified to date. The present examination revealed the potential of thoracic muscle characters for estimating deep phylogeny, possibly including interordinal relationships.
迄今为止，昆虫目石蛃目仅对一个亚目的少数几种物种的胸肌进行了研究。在本研究中，我们检查了来自石蛃目的所有三个亚目的物种的胸肌，以阐明该目的基本模式，并研究该特征系统的系统发育实用性。尽管其他形态特征对这种关系的支持并不明确，但 Troctomorpha 和 Psocomorpha 亚目的姐妹群关系得到了两个新的非同义特征的支持。 infraorders Epipsocetae 和 Psocetae 的姐妹群关系也得到了一个非同义特征的支持，尽管迄今为止尚未确定支持这种关系的其他形态特征。目前的检查显示，胸肌特征可能用于估计深层系统发育，包括可能的目间关系。
