Results 41 to 50 of about 48,915 (171)
Cyclin B3 is required for metaphase to anaphase transition in oocyte meiosis I
Journal of Cell Biology, 2019 Meiosis with a single round of DNA replication and two successive rounds of chromosome segregation requires specific cyclins associated with cyclin-dependent kinases (CDKs) to ensure its fidelity.
Yufei Li +16 more
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Distinct and Overlapping Requirements for Cyclins A, B, and B3 in Drosophila Female Meiosis
G3: Genes, Genomes, Genetics, 2016 Meiosis, like mitosis, depends on the activity of the cyclin dependent kinase Cdk1 and its cyclin partners. Here, we examine the specific requirements for the three mitotic cyclins, A, B, and B3 in meiosis of Drosophila melanogaster.
Mohammed Bourouh +5 more
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Positive feedback of NDT80 expression ensures irreversible meiotic commitment in budding yeast. [PDF]
PLoS Genetics, 2014 In budding yeast, meiotic commitment is the irreversible continuation of the developmental path of meiosis. After reaching meiotic commitment, cells finish meiosis and gametogenesis, even in the absence of the meiosis-inducing signal. In contrast, if the
Dai Tsuchiya, Yang Yang, Soni Lacefield
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Separase Control and Cohesin Cleavage in Oocytes: Should I Stay or Should I Go?
Cells, 2022 The key to gametogenesis is the proper execution of a specialized form of cell division named meiosis. Prior to the meiotic divisions, the recombination of maternal and paternal chromosomes creates new genetic combinations necessary for fitness and ...
Katja Wassmann
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The Consequences of Chromosome Segregation Errors in Mitosis and Meiosis
Biology, 2017 Mistakes during cell division frequently generate changes in chromosome content, producing aneuploid or polyploid progeny cells. Polyploid cells may then undergo abnormal division to generate aneuploid cells.
T. Potapova, G. Gorbsky
semanticscholar +1 more source
Wellcome Open Research, 2017 Background Gametes are generated through a specialized cell division called meiosis, in which ploidy is reduced by half because two consecutive rounds of chromosome segregation, meiosis I and meiosis II, occur without intervening DNA replication.
Colette Fox +3 more
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Haploid meiosis in Arabidopsis: double-strand breaks are formed and repaired but without synapsis and crossovers. [PDF]
PLoS ONE, 2013 Two hallmark features of meiosis are i) the formation of crossovers (COs) between homologs and ii) the production of genetically-unique haploid spores that will fuse to restore the somatic ploidy level upon fertilization.
Marta Cifuentes +4 more
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Nature CommunicationsAneuploidy in eggs is a leading cause of miscarriages or viable developmental syndromes. Aneuploidy rates differ between individual chromosomes. For instance, chromosome 21 frequently missegregates, resulting in Down Syndrome.
Eirini Bellou +8 more
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Biomolecular Concepts, 2014 Meiosis is a unique type of cell division that is performed only by germ cells to form haploid gametes. The switch from mitosis to meiosis exhibits a distinct sex-specific difference in timing, with female germ cells entering meiosis during fetal ...
Jørgensen Anne, Rajpert-De Meyts Ewa
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Anastral spindle assembly and γ-tubulin in
BMC Cell Biology, 2011 Background Anastral spindles assemble by a mechanism that involves microtubule nucleation and growth from chromatin. It is still uncertain whether γ-tubulin, a microtubule nucleator essential for mitotic spindle assembly and maintenance, plays a role ...
Hallen Mark A, Endow Sharyn A
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