Evolution of holometaboly revealed by developmental transformation of internal thoracic structures in a green lacewing Chrysopa pallens(Neuroptera:Chrysopidae)  

作　　者：Chenjing Zhao Mengqing Wang Caixia Gao Min Li Kuiyan Zhang Ding Yang Xingyue Liu 

机构地区：[1]Department of Biology,Taiyuan Normal University,Jinzhong,Shanxi Province,China [2]Department of Entomology,College of Plant Protection,China Agricultural University,Beijing,China [3]Institute of Plant Protection,Chinese Academy of Agricultural Sciences,Beijing,China [4]Institute of Zoology,Chinese Academy of Sciences,Beijing,China

出　　处：《Insect Science》2022年第3期767-782,共16页昆虫科学（英文版）

基　　金：This study was supported by the National Natural Science Foundation of China(32100359,32130012);the Technological Innovation Programs of Higher Education Institutions in Shanxi(2021L430);the China Scholarship Council,which enabled CJZ to spend 12 months as a joint student at the National University of Singapore,hosted by RM.

摘　　要：Despite extensive studies on the morphology of holometabolous insects and their larvae,the morphological transformations of internal structures during metamorphosis have been rarely documented.Here,we used micro-computed tomography to investigate the developmental transformations of thoracic structures in the green lacewing Chrysopa pallens(Rambur,1838)(Neuroptera:Chrysopidae),with emphasis on the development of the digestive,tracheal,and thoracic skeleto-muscular system.All the adult organs were modified during the prepupal or early pupal stage.The histolysis and remodeling began with the skeletal elements,followed by changes in the digestive system before it concluded with modifications of the musculature.Similar to the tracheal system’s development,the digestive system did not disappear completely throughout metamorphosis but underwent a dramatic morphological change,which included the midgut significantly decreasing in size during the pupal stage.Our results provide important evidence for understanding the evolutionary pattern of developmental transformations in different major lineages of Holometabola.

关 键 词：development 3D reconstruction EVOLUTION function morphology predatory insects 

分 类 号：Q96[生物学—昆虫学]