Results 81 to 90 of about 157,342 (355)

Sexual Dimorphism in Mouse Meiosis

Frontiers in Cell and Developmental Biology, 2021
Meiosis is a highly conserved and essential process in gametogenesis in sexually reproducing organisms. However, there are substantial sex-specific differences within individual species with respect to meiosis-related chromatin reorganization ...
Rong Hua, Mingxi Liu
doaj   +1 more source

RAD21L1 Is Sufficient and Effective for Reprogramming Human Sertoli Cells to Phenotypic Spermatogonial Stem Cells Through DNA Methylation and Essential for Male Fertility

Advanced Science, EarlyView.
RAD21L1 is upregulated in human Sertoli cells to be transited to become spermatogonial stem cells by overexpressing DAZ family three genes. RAD21L1 is sufficient and effective for reprogramming Sertoli cells into human spermatogonial stem cells with high safety through DNA methylation.
Caimei He, Yinghong Cui, Wei Chen, Chunyun Li, Zuping He   +4 more
wiley   +1 more source

The cell cycle timing of centromeric chromatin assembly in Drosophila meiosis is distinct from mitosis yet requires CAL1 and CENP-C.

PLoS Biology, 2012
CENP-A (CID in flies) is the histone H3 variant essential for centromere specification, kinetochore formation, and chromosome segregation during cell division.
Elaine M Dunleavy, Nicole L Beier, Walter Gorgescu, Jonathan Tang, Sylvain V Costes, Gary H Karpen   +5 more
doaj   +1 more source

Meiotic cellular rejuvenation is coupled to nuclear remodeling in budding yeast. [PDF]

, 2019
Production of healthy gametes in meiosis relies on the quality control and proper distribution of both nuclear and cytoplasmic contents. Meiotic differentiation naturally eliminates age-induced cellular damage by an unknown mechanism.
Chetlapalli, Keerthana, Goodman, Jay S, Jorgens, Danielle M, King, Grant A, McDonald, Kent L, Schick, Jennifer G, Ünal, Elçin   +6 more
core   +1 more source

Meiotic sex chromosome cohesion and autosomal synapsis are supported by Esco2.

, 2020
In mitotic cells, establishment of sister chromatid cohesion requires acetylation of the cohesin subunit SMC3 (acSMC3) by ESCO1 and/or ESCO2. Meiotic cohesin plays additional but poorly understood roles in the formation of chromosome axial elements (AEs)
Biswas, U., Eichele, G., Hempel, K., Jessberger, R., Kühnel, A., McNicoll, F., Whelan, G.   +6 more
core   +1 more source

Microfilament‐Myosin II Regulates the Differentiation of Multinucleated Cysts into Oocytes and Influences Oocyte Developmental Potential in Mice

Advanced Science, EarlyView.
In this study, we provided new evidence identifying multinucleated cysts as precursors for oocyte differentiation. Within these cysts, organelles migrate and aggregate to form Balbiani body (B‐body) and establish early cellular polarity. Concurrently, excess nuclei are expelled, enabling cyst‐to‐oocyte differentiation. The microfilament‐myosin II plays
Rui Xu, Menghao Pan, Zhi Zheng, Yaju Tang, Yutong Yan, Sihai Lu, Sha Peng, Baohua Ma   +7 more
wiley   +1 more source

Tetrahymena meiosis: Simple yet ingenious.

PLoS Genetics, 2021
The presence of meiosis, which is a conserved component of sexual reproduction, across organisms from all eukaryotic kingdoms, strongly argues that sex is a primordial feature of eukaryotes.
Josef Loidl
doaj   +1 more source

One-two punch mechanism of gene repression: a fresh perspective on gene regulation. [PDF]

, 2017
Cellular differentiation depends on temporally controlled waves of gene activation and inactivation that ultimately transform one cell type into another.
Tresenrider, Amy, Ünal, Elçin
core   +1 more source

A Modular and Customizable CRISPR/Cas Toolkit for Epigenome Editing of Cis‐regulatory Modules

Advanced Science, EarlyView.
Epigenome editing surpasses genome editing in gene regulation. Modular epigenome editing frameworks are developed to interrogate cis‐regulome, enabling tunable reprogramming of cis‐elements, uncovering their epigenetic responsiveness and cross‐species portability.
Lingrui Zhang, Jianxin Fu, Tiandan Long, Chao Zhang, Fuhua Fan, Zhaobo Lang, Jian‐Kang Zhu   +6 more
wiley   +1 more source

Dynamics and control of sister kinetochore behavior during the meiotic divisions in Drosophila spermatocytes. [PDF]

PLoS Genetics, 2018
Sister kinetochores are connected to the same spindle pole during meiosis I and to opposite poles during meiosis II. The molecular mechanisms controlling the distinct behavior of sister kinetochores during the two meiotic divisions are poorly understood.
Soumya Chaurasia, Christian F Lehner
doaj   +1 more source