The aflagellate spermatozoon of ophryotrocha: A line of evolution of fertilization among polychaetes

IF 3 3区 生物学 Q3 BIOCHEMISTRY & MOLECULAR BIOLOGY Molecular Reproduction and Development Pub Date : 1978-01-01 DOI:10.1002/mrd.1120010309
Giovanna Berruti, Marco Ferraguti, Carla Lora Lamia Donin
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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.

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栉虫的鞭状精子:多毛动物受精进化的一条路线
本文在电子显微镜下观察了环节动物多毛虫的精子。它们表现出一些原始特征(细胞核几乎未凝聚,核膜上有孔,线粒体未修饰),呈鞭状。这种异常的结构与一种非常特殊的外部受精有关,在这种受精中,精子在靠近卵子的地方射精。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
CiteScore
5.20
自引率
0.00%
发文量
78
审稿时长
6-12 weeks
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.
期刊最新文献
Issue Information The Role of Sex Reversal Y (SRY) in Pregonadal Sexual Development Deciphering mRNA Translation During Sperm Capacitation: A New Frontier in Fertility Research. Zinc Deficiency Disrupts Germ Cell Nest Breakdown During In Vitro Ovary Culture. Reproductive Importance of Brown Adipose Tissue in the Neotropical Sperm-Storing Vespertilionid Bat Yellowish Myotis: AI Analysis, Lipid Profile, and Androgenic Function.
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