Results 61 to 70 of about 37,794 (252)

Impact of trisomy on fertility and meiosis in male mice [PDF]

Human Reproduction, 2006
Chromosomal abnormalities frequently are associated with impairment or arrest of spermatogenesis in mammals but are compatible with fertility in female carriers of the same anomaly. In the case of trisomy, mice have extra genomic DNA as well as the chromosomal abnormality, usually present as an extra, unpaired chromosome.
Davisson, M, Akeson, E, Schmidt, C, Harris, B, Farley, J, Handel, M A   +5 more
openaire   +2 more sources

eEF1G Orchestrates Translation to Ensure Meiotic Progression in Transcriptionally Quiescent Spermatocytes

Advanced Science, EarlyView.
eEF1G supports translation elongation of meiotic mRNAs in transcriptionally quiescent leptotene and zygotene spermatocytes. Its depletion in germ cells causes meiotic arrest at the zygotene stage, with defective homologous synapsis and unstable recombination intermediates.
Jianze Xu, Yuwei Hu, Xukun Lu, Yuling Cai, Tongtong Li, Ming Gao, Jinlong Ma, Yuan Gao, Shangming Liu, Zi‐Jiang Chen, Jing Meng, Hongbin Liu, Xiaohua Jiang   +12 more
wiley   +1 more source

Genes involved in miRNA biogenesis affect meiosis and fertility [PDF]

, 2018
The authors acknowledge the support of the Ministry of Economy and Competitiveness of Spain (by grants AGL2012-38852 and AGL2015-67349-P) and of the European Union (FP7: Meiosys-KBBE-2009-222883).MicroRNAs (miRNAs) are a class of small (containing about ...
Pradillo Orellana, Mónica, Santos Coloma, Juan Luis   +1 more
core   +1 more source

Genetic Regulation of Mitosis–Meiosis Fate Decision in Plants: Is Callose an Oversighted Polysaccharide in These Processes?

Plants, 2023
Timely progression of the meiotic cell cycle and synchronized establishment of male meiosis in anthers are key to ascertaining plant fertility. With the discovery of novel regulators of the plant cell cycle, the mechanisms underlying meiosis initiation ...
Harsha Somashekar, Ken-Ichi Nonomura
doaj   +1 more source

Super‐Multiplexed Label‐Free Raman Imaging Uncovers Novel Testicular Metabolic Couplings for Residual Body and Spermatogonial Differentiation

Advanced Science, EarlyView.
Super‐multiplexed Label‐free Raman Imaging (SLRI) enables 2D/3D metabolic mapping of intact Drosophila testes. Moving beyond descriptive morphology, it establishes a multidimensional tool for tissue metabolic remodeling, and offers a generalizable platform for complex tissue analysis, with implications extending to development and disease. ABSTRACT The
Jiaxin Li, Xia Chen, Yujuan Qi, Chen Qiao, Qiuru Huang, Dan Zhao, Weiyi Qian, Li Di, Yi Shi, Xiangqi Hu, Yueyue Shao, Kehan Wang, Zhiyu Tang‐Yang, Hanzhi Zang, Yuwen Du, Anran Dong, Jinxiong Feng, Jiayun Chen, Ying Zheng, Xiaofang Tan, Xiaoyu Zhao, Zhonghua Shi, Bo Zheng, Jun Yu   +23 more
wiley   +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

Male reproductive system in stenopodidean shrimps: Unveiling basal reproductive traits in shrimp‐like Pleocyemata (Stenopodidae and Spongicolidae)

The Anatomical Record, EarlyView.
Abstract Stenopodidea represents one of the basal lineages within Pleocyemata, yet the male reproductive system (MRS) of this group remains poorly understood, with limited information available regarding its morphology and function. This study provides the first detailed description of the MRS in four stenopodidean shrimp species from two families ...
Caio Santos Nogueira, Lucas Rezende Penido Paschoal, Fernando José Zara   +2 more
wiley   +1 more source

The histone modification reader ZCWPW1 is required for meiosis prophase I in male but not in female mice [PDF]

, 2019
Meiosis is a specialized type of cell division that creates haploid germ cells and ensures their genetic diversity through homologous recombination. We show that the H3K4me3 reader ZCWPW1 is specifically required for meiosis prophase I progression in ...
Wang, X, Chen, ZJ, Zhang, T, Huang, T, Li, MJ, Li, M, Feng, HW, Yin, YY, Liu, HB, Liu, MF, Lu, G, Zhang, CX, Han, CS, Liu, K, Li, W, Liu, C, Ma, JL, Yu, XC   +17 more
core   +1 more source

Stage-specific expression profiling of Drosophila spermatogenesis suggests that meiotic sex chromosome inactivation drives genomic relocation of testis-expressed genes. [PDF]

PLoS Genetics, 2009
In Drosophila, genes expressed in males tend to accumulate on autosomes and are underrepresented on the X chromosome. In particular, genes expressed in testis have been observed to frequently relocate from the X chromosome to the autosomes.
Maria D Vibranovski, Hedibert F Lopes, Timothy L Karr, Manyuan Long   +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