Results 41 to 50 of about 57,771 (301)

Testing of mitosis and meiosis in female and male gametes

Андрология и генитальная хирургия, 2017
Method of quantitative evaluation of the immature germ cells, their pathology in mitosis and meiosis (in semen, embryo and fetal ovaries, of gonad biopsies or fragments of sectioned material) is informative method and should be introduced into the ...
L. F. Kurilo, S. Sh. Khayat
doaj   +1 more source

Spatial and temporal control of targeting Polo-like kinase during meiotic prophase

Journal of Cell Biology, 2020
Brandt et al. establish mechanisms that target Polo-like kinase during meiotic prophase in C. elegans. CDK-1 phosphorylates a synaptonemal complex component, SYP-1, to generate docking sites for PLK-2, whose association is prevented until crossover ...
James N. Brandt, Katarzyna A. Hussey, Yumi Kim   +2 more
semanticscholar   +1 more source

The First Analysis of Synaptonemal Complexes in Jawless Vertebrates: Chromosome Synapsis and Transcription Reactivation at Meiotic Prophase I in the Lamprey Lampetra fluviatilis (Petromyzontiformes, Cyclostomata)

Life, 2023
Transcription is known to be substage-specific in meiotic prophase I. If transcription is reactivated in the mid pachytene stage in mammals when synapsis is completed, then this process is observed in the zygotene stage in insects.
Sergey Matveevsky, Nikolay Tropin, Aleksandr Kucheryavyy, Oxana Kolomiets   +3 more
doaj   +1 more source

A surge of late-occurring meiotic double-strand breaks rescues synapsis abnormalities in spermatocytes of mice with hypomorphic expression of SPO11 [PDF]

, 2015
Meiosis is the biological process that, after a cycle of DNA replication, halves the cellular chromosome complement, leading to the formation of haploid gametes.
Barchi, Marco, DE ROOIJ, DIRK GIJSBERT, Di Cecca, Stefano, DI GIACOMO, Monica, DI SIENA, Sara, Faieta, Monica, Luchetti, Andrea, Murdocca, Michela, Pellegrini, Manuela, Rossi, Pellegrino   +9 more
core   +3 more sources

Positive regulation of meiotic DNA double-strand break formation by activation of the DNA damage checkpoint kinase Mec1(ATR) [PDF]

, 2013
During meiosis, formation and repair of programmed DNA double-strand breaks (DSBs) create genetic exchange between homologous chromosomes-a process that is critical for reductional meiotic chromosome segregation and the production of genetically diverse ...
Allison, Rachal M, Garcia, Valerie, Goldman, Alastair S H, Gray, Stephen, Neale, Matthew J   +4 more
core   +1 more source

Pushing the (nuclear) envelope into meiosis. [PDF]

, 2013
A recent study shows that a short isoform of a mammalian nuclear lamin is important for homologous chromosome interactions during meiotic prophase in ...
Dernburg, Abby F
core   +1 more source

Genetic control of meiosis surveillance mechanisms in mammals

Frontiers in Cell and Developmental Biology, 2023
Meiosis is a specialized cell division that generates haploid gametes and is critical for successful sexual reproduction. During the extended meiotic prophase I, homologous chromosomes progressively pair, synapse and desynapse. These chromosomal dynamics
Yan Huang, Yan Huang, Ignasi Roig, Ignasi Roig   +3 more
doaj   +1 more source

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

Science Advances, 2019
The histone modification reader ZCWPW1 guides male meiosis prophase I. Meiosis is a specialized type of cell division that creates haploid germ cells and ensures their genetic diversity through homologous recombination.
Miao Li, Tao Huang, Mengjing Li, Chuanxin Zhang, Xiaochen Yu, Yingying Yin, Chao Liu, Xin Wang, Haiwei Feng, Tuo Zhang, Mo-Fang Liu, Chun-Sheng Han, Gang Lu, Wei Li, Jin-long Ma, Zi-Jiang Chen, Hong-Bin Liu, Kui Liu   +17 more
semanticscholar   +1 more source

Principles of meiotic chromosome assembly revealed in S. cerevisiae [PDF]

, 2019
During meiotic prophase, chromosomes organise into a series of chromatin loops emanating from a proteinaceous axis, but the mechanisms of assembly remain unclear.
A Goloborodko, A Hayashi, A Lengronne, A Storlazzi, A Tedeschi, AL Sanborn, AV Smith, B Bonev, D Thacker, D Zickler, E Alipour, E Crane, E Trelles-Sticken, EF Glynn, EP Nora, EP Nora, F Klein, G Fudenberg, G Fudenberg, G Fudenberg, G Wutz, GA Busslinger, H Jin, H Muller, H Tjong, H Wong, J Dekker, J Dekker, J Gassler, J Li, JA Carballo, JF Marko, JHI Haarhuis, JM Belton, JR Dixon, K Challa, K Nasmyth, KG Alavattam, L Lazar-Stefanita, L Patel, L Xu, M Ito, M Merkenschlager, M Sym, M Sym, MN Conrad, N Naumova, N Servant, NJ Petela, NM Hollingsworth, O Crawley, P Eastman, P Eastman, P Kerpedjiev, PB Møens, Q Jin, S Heinz, S Maleki, S Panizza, SA Schalbetter, SSP Rao, SSP Rao, T Mizuguchi, T Sakuno, TS Hsieh, VV Subramanian, W Schwarzer, Y Blat, Y Kakui, Y Wang   +69 more
core   +2 more sources

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