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Ultra-differentiation of Sperm Head in Lesser Egyptian Jerboa, Jaculus jaculus (Family: Dipodidae)
ISSN: 0976 - 7614
Publisher: author
Ultra-differentiation of Sperm Head in Lesser Egyptian Jerboa, Jaculus jaculus (Family: Dipodidae)
Indexed in
Biology and Life Sciences
ARTICLE-FACTOR
1.3
Article Basics Score: 2
Article Transparency Score: 3
Article Operation Score: 3
Article Articles Score: 3
Article Accessibility Score: 3
SUBMIT PAPER ASK QUESTION
International Category Code (ICC):
ICC-0402
Publisher: Journal Of Advanced Laboratory Research In Biology Society..
International Journal Address (IAA):
IAA.ZONE/097645147614
eISSN
:
0976 - 7614
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ISSN Validator
Abstract
In the present study, events of sperm head differentiation in Lesser Egyptian Jerboa, Jaculus jaculus were studied for the first time. Adult males of J. jaculus were collected during their period of sexual activity from sandy regions of Marsa-Matrouh at northwest of Egypt. Tissues of their testes were prepared for ultrathin sections, which examined under a Joel "JEM-1200EXII" operating at 60-70kv. Early and late spermatids were photographed to describe the successive stages of sperm head differentiation. Early spermatids have rounded or oval nuclei with fine chromatin granules and their cytoplasm showed numerous mitochondria, one or more chromatoid bodies and segments of rough endoplasmic reticulum. The first stage of spermatid development usually starts when the Golgi body produces secretory vesicles. These vesicles usually differentiate into an oval dense acrosomal granule, the rest forming a thin layer of acrosomal cap which extend...
