Comparative electron microscopy study of spermatozoa in snakes (Lepidosauria, Squamata).

Autor: Tavares-Bastos L; Setor de Histologia e Embriologia, Instituto de Ciências Biológicas e da Saúde, Universidade Federal de Alagoas, Maceió, AL 57072-970, Brazil. Electronic address: leonora@icbs.ufal.br., Cunha LD; Departamento de Biologia Celular e Molecular e Bioagentes Patogênicos, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brazil. Electronic address: larissacunha@usp.br., França FGR; Centro de Ciências Aplicadas e Educação, Universidade Federal da Paraíba, Rio Tinto, PB 58297-000, Brazil. Electronic address: frederico.franca@academico.ufpb.br., Diele-Viegas LM; Laboratório de (Bio)Diversidade no Antropoceno (BioDivA), Instituto de Biologia, Universidade Federal da Bahia, Salvador, Bahia 40170-115, Brazil. Electronic address: luisaviegas@ufba.br., Vieira GHC; Departamento de Sistemática e Ecologia, Centro de Ciências Exatas e da Natureza, Universidade Federal da Paraíba, João Pessoa, PB, Brazil. Electronic address: ghcvieira@dse.ufpb.br., Santos MG; Departamento de Zoologia, Universidade de Brasília, Brasília, DF 70919-900, Brazil. Electronic address: marcella.goncalvessantos@swosu.edu., Vaqueiro AC; Pós-graduação em Ciências da Saúde, Universidade de Brasília, Brasília, DF 70919-900, Brazil. Electronic address: anacarolina.vaqueiro@gmail.com., Gower DJ; Natural History Museum, London SW7 5BD, UK. Electronic address: d.gower@nhm.ac.uk., Colli GR; Departamento de Zoologia, Universidade de Brasília, Brasília, DF 70919-900, Brazil. Electronic address: grcolli@unb.br., Báo SN; Departamento de Biologia Celular, Universidade de Brasília, Brasília, DF 70919-900, Brazil. Electronic address: snbao@unb.br.
Jazyk: angličtina
Zdroj: Micron (Oxford, England : 1993) [Micron] 2024 Jul; Vol. 182, pp. 103637. Date of Electronic Publication: 2024 Apr 18.
DOI: 10.1016/j.micron.2024.103637
Abstrakt: The ultrastructure of snake sperm has received substantial attention primarily because snakes exhibit considerable variability in reproductive characteristics between species, with a wide range of mating systems and reproductive behaviors. Variability of sperm morphology among snake species may be associated with the reproductive strategies of each taxon, such as competition or sperm storage. We provide a detailed description of the sperm ultrastructure of nine snake species (Anilius scytale, Tropidophis paucisquamis, Bothrops jararaca, Oxyrhopus guibei, Dipsas mikanii, Micrurus corallinus, Xenopholis scalaris, Acrochordus javanicus, and Cylindrophis ruffus) and compared this with sperm data from the literature for the following taxa: Liotyphlops beui, Amerotyphlops reticulatus, Trilepida koppesi, Anilios waitii, Anilios endoterus, Aspidites melanochephalus, Boa constrictor amarali, Corallus hortulana, Epicrates cenchria, Boa constrictor occidentalis, Eryx jayakari, Micrurus corallinus, Micrurus surinamensis, Micrurus frontalis, Micrurus altirostris, Oxyuranus microlepidotus, Bothrops alternatus, Bothrops diporus, Crotalus durissus, Agkistrodon contortrix, Vipera aspis, Boiga irregularis, Zamenis schrenckii, Zamenis scalaris, Stegonotus cuculatus, Nerodia sipedon, Liodytes pygaea, and Myrrophis chinensis. We found twelve polymorphic characters in the ultrastructure of sperm among the described snakes. Our work supports the importance of ultrastructural analysis of sperm morphology to understand snake reproduction, and provides sperm-derived morphological characters for phylogenetic analysis.
Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2024 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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