Results 51 to 60 of about 26,216 (365)

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

open access: yesbioRxiv, 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   +3 more
semanticscholar   +1 more source

Phospho-Regulation of Meiotic Prophase

open access: yesFrontiers 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

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

open access: yesFrontiers 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   +5 more
semanticscholar   +1 more source

Chromosome Organization in Early Meiotic Prophase

open access: yesFrontiers 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

A conserved filamentous assembly underlies the structure of the meiotic chromosome axis. [PDF]

open access: yes, 2019
The meiotic chromosome axis plays key roles in meiotic chromosome organization and recombination, yet the underlying protein components of this structure are highly diverged.
Caballero, Iracema   +10 more
core   +4 more sources

Meiotic behavior of small chromosomes in maize

open access: yesFrontiers 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

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

open access: yesToxins, 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   +6 more
doaj   +1 more source

OsHOP2 regulates the maturation of crossovers by promoting homologous pairing and synapsis in rice meiosis.

open access: yesNew Phytologist, 2019
Meiotic recombination is closely linked with homologous pairing and synapsis. Previous studies have shown that HOMOLOGOUS PAIRING PROTEIN2 (HOP2), plays an essential role in homologous pairing and synapsis.
Wenqing Shi   +11 more
semanticscholar   +1 more source

Evolution: On the Origin of Symmetry, Synapsis, and Species [PDF]

open access: yesCurrent Biology, 2016
As two species diverge from one another, they become increasingly isolated by reproductive incompatibilities. New findings, however, undermine this evolutionary orthodoxy, showing that the first identified mammal speciation gene causes only transient incompatibility between diverging species.
Cara L. Brand, Daven C. Presgraves
openaire   +3 more sources

Defending the genome from the enemy within:mechanisms of retrotransposon suppression in the mouse germline [PDF]

open access: yes, 2013
The viability of any species requires that the genome is kept stable as it is transmitted from generation to generation by the germ cells. One of the challenges to transgenerational genome stability is the potential mutagenic activity of transposable ...
A Aravin   +241 more
core   +1 more source

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