Results 11 to 20 of about 22,975 (207)

The multicopy gene Sly represses the sex chromosomes in the male mouse germline after meiosis. [PDF]

, 2009
Studies of mice with Y chromosome long arm deficiencies suggest that the male-specific region (MSYq) encodes information required for sperm differentiation and postmeiotic sex chromatin repression (PSCR).
Yamauchi, Yasuhiro, Julie Cocquet, Nabeel A Affara, Burgoyne, Paul S., Yasuhiro Yamauchi, Cocquet, Julie, Affara, Nabeel A., Mahadevaiah, Shantha K., Ellis, Peter J.I., Peter J I Ellis, Monika A Ward, Shantha K Mahadevaiah, Ward, Monika A., Paul S Burgoyne   +13 more
core   +1 more source

Deficiency in the multicopy Sycp3-like X-linked genes Slx and Slxl1 causes major defects in spermatid differentiation. [PDF]

, 2010
The human and mouse sex chromosomes are enriched in multicopy genes required for postmeiotic differentiation of round spermatids into sperm. The gene Sly is present in multiple copies on the mouse Y chromosome and encodes a protein that is required for ...
Ojarikre, Obah A., Burgoyne, Paul S, Yamauchi, Yasuhiro, Rattigan, Aine, Julie Cocquet, Jonathan M. Riel, Thomas P. S. Karacs, Áine Rattigan, Yasuhiro Yamauchi, Riel, Jonathan M., Cocquet, Julie, Affara, Nabeel A., Monika A. Ward, Paul S. Burgoyne, Karacs, Thomas P.S., Ellis, Peter J.I., Obah A. Ojarikre, Peter J. I. Ellis, Nabeel A. Affara, Ward, Monika A.   +19 more
core   +1 more source

A genetic basis for a postmeiotic X versus Y chromosome intragenomic conflict in the mouse. [PDF]

, 2012
Intragenomic conflicts arise when a genetic element favours its own transmission to the detriment of others. Conflicts over sex chromosome transmission are expected to have influenced genome structure, gene regulation, and speciation.
Shantha K. Mahadevaiah (94714), Nabeel A. Affara (135531), Vaiman, Daniel, Julie Cocquet, Nabeel A Affara, Burgoyne, Paul S., Daniel Vaiman, Cocquet, Julie, Affara, Nabeel A., Julie Cocquet (135523), Mahadevaiah, Shantha K., Ellis, Peter J.I., Peter J I Ellis, Shantha K Mahadevaiah, Daniel Vaiman (83223), Paul S. Burgoyne (94717), Peter J. I. Ellis (135526), Paul S Burgoyne   +17 more
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Adverse effects of bisphenol A on the testicular parenchyma of zebrafish revealed using histomorphological methods

Veterinární Medicína, 2016
The purpose of this study was to evaluate the consequences of bisphenol A (BPA) exposure in zebrafish (Danio rerio). Short-term effects at a testes level were assessed by means of different biomarkers in 60 male zebrafish exposed for 14 days in aquariums
A.J. Lora, A.M. Molina, C. Bellido, A. Blanco, J.G. Monterde, M.R. Moyano   +5 more
doaj   +1 more source

Intracellular Ca2+ homeostasis in rat round spermatids [PDF]

, 1998
Intracellular calcium, [Caz+], can regulate meiotic progression of mammalian oocytes. However, the role of [Ca2+], in the regulation of the spermatogenic process and its cellular homeostatic mechanisms in spermatogenic cells has not been elucidated ...
Opazo, Carlos, Berrios, Julio, Reyes, Juan G., Osses, Nelson, Benos, Dale J., Mercado, Luis, Arenas, Gloria   +6 more
core   +1 more source

Isolation, identification and quality assessment of bovine round spermatids

, 2023
In mice and humans, it is possible to generate full-term individuals by round spermatids intracytoplasmic injection (ROSI). In cattle, ROSI is possible but with very low efficiency and no offspring have been born with this technique so far.
R. Pasquariello, T. Brevini, F. Gandolfi, F. Di Filippo   +3 more
core   +2 more sources

Some morphometric and histological description of the seminiferous ,striaghted and rete testis tubules in the testis of indogenous male goats (two years old)

Kufa Journal for Veterinary Medical Sciences, 2011
    The present Study was carried out on (15) testis indogenous male goats(two years)old . The testes was surrounded by capsule mean thickness (230±3.5) micrometer.The internal structures of the testes represented by seminiferous tubules mean diameters (
Abdul Hadi Sallal Mohammed, Dalal Abdul Husian Kadium, Ashwaq Kadium Ebed   +2 more
doaj   +1 more source

Descriptive Analysis of LAP1 Distribution and That of Associated Proteins throughout Spermatogenesis

Membranes, 2017
Spermatogenesis comprises highly complex differentiation processes. Nuclear envelope (NE) proteins have been associated with these processes, including lamins, lamina-associated polypeptide (LAP) 2 and the lamin B-receptor.
Joana B. Serrano, Filipa Martins, João C. Sousa, Cátia D. Pereira, Ans M. M. van Pelt, Sandra Rebelo, Odete A. B. da Cruz e Silva   +6 more
doaj   +1 more source

The physiology of the reproductive cycle of the powan of Loch Lomond, Coregonus lavaretus (L) (Euteleostei, Salmonidae) in relation to the deposition and mobilization of storage products [PDF]

, 2012
There have been numerous studies in which the reproductive cycles of teleosts have been correlated with either environmental cycles or associated physiological cycles, or both. Such correlation is seldom accurately achieved; usually because
Rashid, Karim Hamid
core   +2 more sources

Influence of rainfall and temperature on the spermatogenesis of Leptodactylus macrosternum (Anura: Leptodactylidae)

Zoologia (Curitiba), 2017
In the semi-arid environment, the reproductive success of anurans depends on adaptations in their life cycle, which synchronizes with ideal environmental conditions to maximize the number of offspring.
Marcio F. Chaves, Geraldo J.B. de Moura, Fernanda das C.M.A. Tenório, Josemberg da S. Baptista, Clovis J.C. Lapa Neto, Valeria W. Texeira, Álvaro A.C. Texeira   +6 more
doaj   +1 more source