Exploration of the homology among the muscles associated with the female genitalia of the three suborders of Psocodea (Insecta)
Exploration of the homology among the muscles associated with the female genitalia of the three suborders of Psocodea (Insecta)
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DOI：
10.1016/j.asd.2022.101141
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发表时间：
2022-01-01
影响因子：
2
通讯作者：
Yoshizawa, Kazunori
中科院分区：
文献类型：
--
作者：
Cheng, Zixin;Yoshizawa, Kazunori
通过使用mu CT技术，我们重建了来自Psocodea（仅自由生活的物种，以前被称为独立的昆虫目“Psocoptera”）的三个亚目的七个物种的女性生殖器结构和相关肌肉的3D模型。讨论了不同物种雌性生殖器结构和相关肌肉的同源性。共观察到21个肌肉群，除了一个肌肉，所有的同源整个顺序。此外，一些同源的肌肉可以确定在holometabolan昆虫。以肌肉为标志，讨论了裸蝇与其他新翅目昆虫产卵器瓣的同源性。最重要的是，Trogiomorpha亚目的产卵器被确定为由发育良好的外瓣（V3）和背瓣（V2）的残余组成。我们还检查了女性生殖器肌肉中包含的系统发育信息，发现某些肌肉提供有用的信息并支持更深的节点（例如，单系亚目）。对雌性生殖肌的研究不仅有助于我们更好地了解裸腹甲属的生殖发生，而且为研究肌肉的进化提供了坚实的基础。(C)2022爱思唯尔有限公司保留所有权利。
By using mu CT technology, we reconstructed 3D models of the female genital structures and associated muscles of seven species from three suborders of Psocodea (free-living species only, formerly known as independent insect order "Psocoptera"). The homology of the female genital structures and associated muscles of different species is discussed. A total of 21 muscle groups were observed, and except for one muscle, all were homologized throughout the order. Moreover, some of the homologous muscles could be identified confidently in holometabolan insects. Using the muscles as landmarks, we discuss the homology of the ovipositor valves between Psocodea and other neopteran insects. Most importantly, the ovipositor of the suborder Trogiomorpha was identified to consist of the well-developed external valve (V3) plus a remnant of the dorsal valve (V2). We also examined the phylogenetic information included in the female genital muscles and found that certain muscles provide useful information and support deeper nodes (e.g., monophyly of the suborder Psocomorpha). The present study of female genital muscles not only helps us to better understand the phylogeny of Psocodea but also provides a solid foundation for research on muscle evolution. (C) 2022 Elsevier Ltd. All rights reserved.