Results 71 to 80 of about 13,462 (242)

A Caenorhabditis elegans protein with a PRDM9-like SET domain localizes to chromatin-associated foci and promotes spermatocyte gene expression, sperm production and fertility. [PDF]

PLoS Genetics, 2018
To better understand the tissue-specific regulation of chromatin state in cell-fate determination and animal development, we defined the tissue-specific expression of all 36 C.
Christoph G Engert, Rita Droste, Alexander van Oudenaarden, H Robert Horvitz   +3 more
doaj   +1 more source

Histological Characterization and Comparative Transcriptomic Analysis of Gonads During Early Sex Differentiation in the Northern Snakehead (Channa argus)

Animal Research and One Health, EarlyView.
This study delineates the early sex differentiation timeline in the northern snakehead (Channa argus). These findings provide a foundation for future sex‐control breeding in this economically important species. ABSTRACT The northern snakehead (Channa argus) is an economically important aquaculture species in China.
Chaonan Sun, Donglei Sun, Haishen Wen, Xin Qi, Chao Li, Xiaoyan Zhang, Yun Li   +6 more
wiley   +1 more source

Green2/3 dot splitting in an early Cap-H2^cc1/ Df spermatocyte.

, 2021
Cap-H2cc1/ Df spermatocytes with bam>UASt-RedX Green2/3 were analyzed by time-lapse imaging at 60 sec intervals. The splitting of a Green2/3 dot into two, as observed in the spermatocyte presented in Fig 6F, is shown in a maximum intensity projection ...
Christian F. Lehner (9449522), Luisa Vernizzi (11587299)   +1 more
core   +1 more source

Cell cycle and age-related modulations of mouse chromosome stiffness

eLife
Chromosome structure is complex, and many aspects of chromosome organization are still not understood. Measuring the stiffness of chromosomes offers valuable insight into their structural properties.
Ning Liu, Wenan Qiang, Philip W Jordan, John F Marko, Huanyu Qiao   +4 more
doaj   +1 more source

Male meiotic spindle features that efficiently segregate paired and lagging chromosomes

eLife, 2020
Chromosome segregation during male meiosis is tailored to rapidly generate multitudes of sperm. Little is known about mechanisms that efficiently partition chromosomes to produce sperm.
Gunar Fabig, Robert Kiewisz, Norbert Lindow, James A Powers, Vanessa Cota, Luis J Quintanilla, Jan Brugués, Steffen Prohaska, Diana S Chu, Thomas Müller-Reichert   +9 more
doaj   +1 more source

Heat Stress in Quail: Impacts on Health and Productivity, and Mitigation Strategies

Animal Research and One Health, EarlyView.
Heat stress disrupts physiological homeostasis in quail, inducing oxidative stress, immune dysregulation, and metabolic imbalance, which impair growth, reproduction, product quality, and welfare. Integrating nutritional, environmental, and genetic–epigenetic strategies enhances thermotolerance, sustains productivity, and supports climate‐smart quail ...
T. A. Eletu, I. A. Anjola, L. O. Fasasi, D. P. Fadipe, A. T. Afuye, F. O. Fasanya, O. E. Oke   +6 more
wiley   +1 more source

Spermatogenesis and spermiogenisis in the testes of local Iraqi breed cat (Felis catus)

The Iraqi Journal of Veterinary Medicine, 2012
The seminiferous epithelium of the testes of cat consists of two groups of cells; Spermatogenic cells and Sertoli cells. The interstitial areas are filled with Leydic cells, blood and lymph vessels, and connective tissue.
AL-Samarrae N. S.
doaj   +1 more source

Use of Clotrimazole in Finfish Aquaculture: Mechanistic Insights, Limitations, and Future Directions for Antifungal Therapy

Animal Research and One Health, EarlyView.
This review critically evaluates clotrimazole as a potential antifungal for finfish aquaculture, highlighting strong mechanistic and in vitro efficacy against aquatic mycoses alongside major gaps in in vivo evidence, toxicokinetics, residue safety, and environmental risk, outlining priorities for responsible therapeutic development and regulatory ...
Arya Sen, Debashri Mondal, Thangapalam Jawahar Abraham   +2 more
wiley   +1 more source

Linear chain quadrivalent in T(2;3)ftz^Rpl heterozygous spermatocyte during S6.

, 2022
Cenp-A/Cid-EGFP (green) and His2Av-mRFP (magenta) were used for visualization of chromosome territory organization by live imaging. The S6 spermatocyte presented in Fig 4C with a partially condensed quadrivalent territory in a linear chain configuration ...
Christian F. Lehner (9449522), Luisa Vernizzi (11587299)   +1 more
core   +1 more source

Heat stress in spermatogenesis: a redox‐dependent decision network linking ROS, autophagy, and regulated cell death

Biological Reviews, EarlyView.
ABSTRACT Heat stress (HS) is an increasing threat to male reproductive health, disrupting spermatogenesis through complex and interdependent cellular responses within the seminiferous epithelium. Although excessive reactive oxygen species (ROS) production is a hallmark of HS, ROS also act as central regulators of cell fate decisions beyond their role ...
Ribrio Ivan Tavares Pereira Batista
wiley   +1 more source