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Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/32194
Title: 
ULTRASTRUCTURE OF THE HINNY (EQUUS-ASINUS X EQUUS-CABALLUS) SEMINIFEROUS EPITHELIUM
Author(s): 
Institution: 
Universidade Estadual Paulista (UNESP)
ISSN: 
0340-2096
Abstract: 
The gonads and the germinative cells of 3 male hinnies were studied with light and transmission electron microscopy with the aim to observe the development of germ cells and verify the morphological modifications due to the hybridization. The hinny seminiferous epithelium presented Sertoli cells and spermatogonia with normal features and anomalous spermatocytes I. The other cells from the spermatogenic sequence were not seen. Most of the alterations began to occur in the cytes I, which presented nuclear vacuolization and deposits of amorphous material between the carioteca and the nuclear lamina, forming vesicles, or exaggerated chromatin condensation, resulting in pyknosis. In the cytoplasm vacuolization was also observed, besides organelle destruction.The arrest of meiosis due to lock of chromosome homologies leads to germinative cell degeneration and, therefore, the spermatogenesis arrest. This fact causes a profound alteration in the seminiferous epithelium morphology in comparison with the parental species.
Issue Date: 
1-Dec-1994
Citation: 
Anatomia Histologia Embryologia. Hoboken: Wiley-blackwell, v. 23, n. 4, p. 343-351, 1994.
Time Duration: 
343-351
Publisher: 
Wiley-Blackwell
Source: 
http://dx.doi.org/10.1111/j.1439-0264.1994.tb00484.x
URI: 
Access Rights: 
Acesso restrito
Type: 
outro
Source:
http://repositorio.unesp.br/handle/11449/32194
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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