Results 51 to 60 of about 26,734 (323)

The telomere bouquet is a hub where meiotic double-strand breaks, synapsis, and stable homolog juxtaposition are coordinated in the zebrafish, Danio rerio

bioRxiv, 2018
Meiosis is a cellular program that generates haploid gametes for sexual reproduction. While chromosome events that contribute to reducing ploidy (homologous chromosome pairing, synapsis, and recombination) are well conserved, their execution varies ...
Yana P. Blokhina, An Nguyen, B. Draper, S. Burgess   +3 more
semanticscholar   +1 more source

Histone methyltransferases MES-4 and MET-1 promote meiotic checkpoint activation in Caenorhabditis elegans.

PLoS Genetics, 2012
Chromosomes that fail to synapse during meiosis become enriched for chromatin marks associated with heterochromatin assembly. This response, called meiotic silencing of unsynapsed or unpaired chromatin (MSUC), is conserved from fungi to mammals.
Piero Lamelza, Needhi Bhalla
doaj   +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

Ultrastructure and Dynamics of Synaptonemal Complex Components During Meiotic Pairing and Synapsis of Standard (A) and Accessory (B) Rye Chromosomes

Frontiers in Plant Science, 2019
During prophase I a meiosis-specific proteinaceous tripartite structure, the synaptonemal complex (SC), forms a scaffold to connect homologous chromosomes along their lengths.
Susann Hesse, Mateusz Zelkowski, E. Mikhailova, C. J. Keijzer, A. Houben, V. Schubert   +5 more
semanticscholar   +1 more source

Meiotic behavior of small chromosomes in maize

Frontiers in Plant Science, 2013
The typical behavior of chromosomes in meiosis is that homologous pairs synapse, recombine and then separate at anaphase I. At anaphase II, sister chromatids separate.
James A. Birchler, Fangpu eHan
doaj   +1 more source

Phospho-Regulation of Meiotic Prophase

Frontiers in Cell and Developmental Biology, 2021
Germ cells undergoing meiosis rely on an intricate network of surveillance mechanisms that govern the production of euploid gametes for successful sexual reproduction.
Funda M. Kar, Andreas Hochwagen
doaj   +1 more source

Analysis of meiosis in Pristionchus pacificus reveals plasticity in homolog pairing and synapsis in the nematode lineage

bioRxiv, 2019
Meiosis is conserved across eukaryotes yet varies in the details of its execution. Here we describe a new comparative model system for molecular analysis of meiosis, the nematode Pristionchus pacificus, a distant relative of the widely studied model ...
Regina Rillo-Bohn, Renzo S. Adilardi, T. Mitros, Barış Avşaroğlu, L. Stevens, S. Köhler, J. Bayes, Clara W Wang, Samantha Lin, K. Baskevitch, D. Rokhsar, A. Dernburg   +11 more
semanticscholar   +1 more source

Cytotoxicity and Effects on the Synapsis Induced by Pure Cylindrospermopsin in an E17 Embryonic Murine Primary Neuronal Culture in a Concentration- and Time-Dependent Manner

Toxins, 2022
Cylindrospermopsin (CYN) is a cyanotoxin whose incidence has been increasing in the last decades. Due to its capacity to exert damage at different levels of the organism, it is considered a cytotoxin.
María G. Hinojosa, Ana I. Prieto, Clara Muñoz-Castro, María V. Sánchez-Mico, Javier Vitorica, Ana M. Cameán, Ángeles Jos   +6 more
doaj   +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

Chromosome Organization in Early Meiotic Prophase

Frontiers in Cell and Developmental Biology, 2021
One of the most fascinating aspects of meiosis is the extensive reorganization of the genome at the prophase of the first meiotic division (prophase I). The first steps of this reorganization are observed with the establishment of an axis structure, that
Corinne Grey, Bernard de Massy
doaj   +1 more source