Giovanna Berruti, Marco Ferraguti, Carla Lora Lamia Donin
{"title":"The aflagellate spermatozoon of ophryotrocha: A line of evolution of fertilization among polychaetes","authors":"Giovanna Berruti, Marco Ferraguti, Carla Lora Lamia Donin","doi":"10.1002/mrd.1120010309","DOIUrl":null,"url":null,"abstract":"<p>The spermatozoa of the annelid polychaete Ophryotrocha have been examined under the electron microscope. They show some primitive features (scarcely condensed nucleus, pores in the nuclear envelope, unmodified mitochondria) and are aflagellate. This aberrant structure is related to a very specialized type of external fertilization in which the spermatozoa are ejaculated close to the eggs.</p>","PeriodicalId":18856,"journal":{"name":"Molecular Reproduction and Development","volume":"1 3-4","pages":"287-292"},"PeriodicalIF":3.0000,"publicationDate":"1978-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1002/mrd.1120010309","citationCount":"31","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Molecular Reproduction and Development","FirstCategoryId":"99","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/mrd.1120010309","RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"BIOCHEMISTRY & MOLECULAR BIOLOGY","Score":null,"Total":0}
引用次数: 31
Abstract
The spermatozoa of the annelid polychaete Ophryotrocha have been examined under the electron microscope. They show some primitive features (scarcely condensed nucleus, pores in the nuclear envelope, unmodified mitochondria) and are aflagellate. This aberrant structure is related to a very specialized type of external fertilization in which the spermatozoa are ejaculated close to the eggs.
期刊介绍:
Molecular Reproduction and Development takes an integrated, systems-biology approach to understand the dynamic continuum of cellular, reproductive, and developmental processes. This journal fosters dialogue among diverse disciplines through primary research communications and educational forums, with the philosophy that fundamental findings within the life sciences result from a convergence of disciplines.
Increasingly, readers of the Journal need to be informed of diverse, yet integrated, topics impinging on their areas of interest. This requires an expansion in thinking towards non-traditional, interdisciplinary experimental design and data analysis.