Results 81 to 90 of about 18,808 (211)
Oocyte Meiotic Cell Division: Spindle Assembly, Chromosome Segregation, and Cytokinesis. [PDF]
, 2020 Meiosis, the specialized cell division process that results in haploid gamete formation, is characterized by a single round of genome duplication followed by two successive divisions.
Schlientz, Aleesa
core
CDK1 makes the meiotic spindle wait [PDF]
Journal of Cell Biology, 2013 ![Figure][1] In an oocyte with enhanced CDK1 activity, every kinetochore (red) forms a stable, end-on attachment to a spindle microtubule (green). A delay in cyclin-dependent kinase activity prevents meiotic chromosomes from prematurely attaching to spindle microtubules, [Davydenko et ...
openaire +1 more source
Life Science AllianceTubulin dimers concentrate within an ER spindle envelope because cytoplasmic organelles outside the envelope occupy significant volume. In many animal species, the oocyte meiotic spindle, which is required for chromosome segregation, forms without ...
Ting Gong +6 more
doaj +1 more source
A Taz1- and Microtubule-Dependent Regulatory Relationship between Telomere and Centromere Positions in Bouquet Formation Secures Proper Meiotic Divisions. [PDF]
PLoS Genetics, 2016 During meiotic prophase, telomeres cluster, forming the bouquet chromosome arrangement, and facilitate homologous chromosome pairing. In fission yeast, bouquet formation requires switching of telomere and centromere positions.
Kazuhiro Katsumata +8 more
doaj +1 more source
Embryonic development of the Mediterranean starfish Hacelia attenuata
Developmental Dynamics, EarlyView.Abstract Background Starfish play essential ecological roles as predators and ecosystem regulators; however, detailed developmental descriptions exist for only a handful of species, none of which are from the Mediterranean Sea. Results In this study, we provide the first full account of the development of the Mediterranean starfish Hacelia attenuata ...
Silvia Caballero‐Mancebo +3 more
wiley +1 more source
Journal of Applied Toxicology, EarlyView.ABSTRACT Parabens (PBs) are compounds widely used as preservatives in personal care products, food, and pharmaceuticals. Methylparaben (MePB) is the most used by different industries due to its chemical properties and low cost. The high daily human exposure to these compounds has raised concerns about their potential effects on health, particularly on ...
Yenny Ramírez‐Jara +11 more
wiley +1 more source
Plant Biology, EarlyView.Cytogenetic quantification of KNL1‐labelled kinetochores in Ornithogalum kochii reveals a significant positive scaling relationship between chromosome size and kinetochore size, demonstrating that chromosome–kinetochore scaling operates even across moderate intra‐karyotype size variation.
K. Panda, M. Hroneš, F. Zedek
wiley +1 more source
Disrupted meiotic spindle configurations.
, 2013 Note: Meiotic spindle configurations were evaluated by immunofluorescence analysis of individual oocytes that were fixed at the end of an 18-hour culture. Spindle microtubules were detected with anti-Ac-tubulin, and the DNA was labeled with DAPI.
Zhong-Hong Wu (299091) +9 more
core +1 more source
Multiple Duties for Spindle Assembly Checkpoint Kinases in Meiosis
Frontiers in Cell and Developmental Biology, 2017 Cell division in mitosis and meiosis is governed by evolutionary highly conserved protein kinases and phosphatases, controlling the timely execution of key events such as nuclear envelope breakdown, spindle assembly, chromosome attachment to the spindle ...
Adele L. Marston +2 more
doaj +1 more source
Veterinary and Comparative Oncology, EarlyView.ABSTRACT Equine melanocytic neoplasms (EMN) are aggressive tumours characterised by high metastatic potential and limited therapeutic options available. However, the molecular mechanisms underlying their progression remain poorly understood. This study therefore presents the integrative phosphoproteomic analysis of EMN tissue, with the aim of ...
Paitoon Srimontri +13 more
wiley +1 more source