Ultrastructural analysis of sperm from the genus Idarnes(Hymenoptera:Chalcidoidea,Sycophaginae)  

作　　者：KHESLLER PATRÍCIA OLAZIA JULIANA SOUZA DA SILVA GUILHERME SIRIMARCO DE SOUZA TONELLI SÔNIA NAIR BÁO 

机构地区：[1]Departamento de Biologia Celular,Instituto de Ciências Biológicas,Universidade de Brasília,Brasília,Brazil [2]Instituto de Ciências da Saúde,Coordenação de Ciências Biológicas,Universidade Paulista UNIP,Brasília,Brazil

出　　处：《BIOCELL》2022年第1期275-283,共9页生物细胞（英文）

基　　金：Conselho Nacional de Desenvolvimento Científico e Tecnológico/CNPq(Grant No.302355/2016-2);Financiadora de Estudos e Projetos/FINEP(Grant No.01.08.0457.00);Fundação de AmparoàPesquisa do Distrito Federal/FAPD-DF(Grant No.00193.00000920/2020-23);Coordenação de Aperfeiçoamento de Pessoal de Nível Superior/CAPES(Code 001).

摘　　要：In this study,the sperm ultrastructure of three species of Idarnes genus was investigated using light and transmission electron microscopy.Spermatozoon morphology of the three species was similar to that of most Chalcidoidea,with helicoidally twisted nucleus and flagellum.The head region consists of an acrosome and a nucleus;the nucleus-flagellum transition region characterized by the presence of mitochondrial derivatives and the centriolar adjunct;a flagellum region,which includes the axoneme with microtubular arrangement 9+9+2 and two mitochondrial derivatives.However,the sperm of these three species exhibit features that discriminate one species from each other:(1)only one species,Idarnes sp.2(carme group)exhibited an extracellular sheath surrounding the anterior portion of the nucleus,which extends to the anterior region of the flagellum,but it did not present filaments;(2)the acrosome in the three species was quite different,Idarnes sp.1 and Idarnes sp.2(carme group)has two compartments(acrosomal and subacrosomal vesicles)while Idarnes sp.3(flavicollis group)has a third compartment(perforatorium);(3)the centriolar adjunct elongated and its location among the mitochondrial derivatives is similar for the three species analyzed;(4)mitochondrial derivatives differ between the species,with triangular(Idarnes sp.1 and sp.3)and elongated or flat shaped(Idarnes sp.2)appearance.These data shows that sperm structure may differ within the same genus and confirms the potential of these cells in phylogenetic and taxonomic analyses in the Chalcidoidea superfamily,as well as in Hymenoptera in general.

关 键 词：CHALCIDOIDEA Idarnes genus Insect sperm Sperm ultrastructure Fig wasps 

分 类 号：O62[理学—有机化学]