塞内加尔鳎（考普，1858年）（硬骨鱼纲，鲽形目）的精子形态

The spermatozoon morphology of Solea senegalensis (Kaup, 1858) (Teleostei, Pleuronectiformes).

作者信息

Medina A, Megina C, Abascal F J, Calzada A

机构信息

Department of Animal Biology, Plant Biology and Ecology, Faculty of Marine Sciences, University of Cádiz, Spain.

出版信息

J Submicrosc Cytol Pathol. 2000 Oct;32(4):645-50.

PMID:11297384

Abstract

The spermatozoon of Solea senegalensis (Kaup, 1858) consists of an acrosome-less ovoid head, a short midpiece containing several irregular mitochondria embedded in the cytoplamic mass, and a long tail with two lateral fins and a conventional 9 + 2 axoneme. The centrioles are housed in a deep nuclear fossa and are both orientated in the same longitudinal axis of the spermatozoon. The overall structure of this spermatozoon conforms to the sperm type considered to be plesiomorphic in the neopterigians (type I sperm). The likely apomorphic (coaxial) orientation of the centrioles defines the spermatozoal morphology of the Soleidae investigated thus far and separates them from the other known pleuronectiform spermatozoa.

摘要

塞内加尔鳎（Kaup，1858年）的精子由一个无顶体的卵形头部、一个短的中段组成，中段包含几个嵌入细胞质团中的不规则线粒体，以及一条长尾巴，尾巴有两个侧鳍和一个传统的9+2轴丝。中心粒位于一个深的核窝中，并且都在精子的同一纵轴上定向。这种精子的整体结构符合新翅类中被认为是原始形态的精子类型（I型精子）。中心粒可能的特化（同轴）定向定义了迄今为止所研究的鳎科精子的形态，并将它们与其他已知的鲽形目精子区分开来。