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1979

Apoptosis phenomenon of gonadal cells during sex-reversal in the bony fish Rhabdosargtts haffaro.

Article

Last updated: 22 Jan 2023

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-

Tags

Fisheries

Abstract

The purpose of this study was to demonstrate the normal occurrence of programmed cell death (apoptosis) in the gonads (testes and ovaries) of the f\s\\ Rhahdosargus hqffara during sex-reversal process. Histological evidence marked apoptosis in function male during transformation of gonads from male to female, where there was decrease in size of testis with condensed spermatogonia and closed spermatic ducts with residual sperm. On the other hand, oocyte apoptosis in R. hqffara occurs in three common stages, which start at the wall of oocytes. The first stage includes shrinkage of oocyte size. Theca and granulosa of apoptotic oocyte transformed to.phagocytic cells. In the second type protrusions appear in the oocyte wall until the oocyte looses its identity and displayed amoeboid shape with liquefied content The third stage depends on the breaking down of oocytes wall into small fragments. Finally, all types of apoptosis lead to lysis and loss of oocyte content. The importance of this phenomenon with sex-reversal may lead to social interactions and the natural balance in the j?. hqffara population.

DOI

10.21608/ejabf.2008.1979

Keywords

apoptosis, sex - reversal, Rhahdosargus hqffara, gonadal cells

Authors

First Name

Amal

Last Name

Ramadan

MiddleName

-

Affiliation

National Institute of Oceanography and Fisheries,

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City

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Orcid

-

Volume

12

Article Issue

1

Related Issue

418

Issue Date

2008-01-01

Receive Date

2017-04-02

Publish Date

2008-01-01

Page Start

143

Page End

154

Print ISSN

1110-6131

Online ISSN

2536-9814

Link

https://ejabf.journals.ekb.eg/article_1979.html

Detail API

https://ejabf.journals.ekb.eg/service?article_code=1979

Order

10

Type

Original Article

Type Code

103

Publication Type

Journal

Publication Title

Egyptian Journal of Aquatic Biology and Fisheries

Publication Link

https://ejabf.journals.ekb.eg/

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Article

Created At

22 Jan 2023