Results 71 to 80 of about 6,353,452 (269)
Surveillance of cohesin-supported chromosome structure controls meiotic progression
Nature Communications, 2020 Meiosis-specific cohesins and the synaptonemal complex are essential for meiotic chromosome structure and function. Here the authors show that continued surveillance of these chromosome structures controls meiotic progression by regulating CHK-2, a ...
Maikel Castellano-Pozo +6 more
doaj +1 more source
EP300‐interacting inhibitor of differentiation 3 is required for spermatogenesis in mice
Andrology, EarlyView.Abstract Background Mammalian spermatogenesis is a highly complex process of cell proliferation, meiosis, and differentiation. A series of genes are expressed in an orderly and precise manner to ensure spermatogenesis, with chromatin undergoing intricate changes throughout.
Ping Zhang +7 more
wiley +1 more source
Evidence that MEK1 positively promotes interhomologue double-strand break repair [PDF]
, 2010 During meiosis there is an imperative to create sufficient crossovers for homologue segregation. This can be achieved during repair of programmed DNA double-strand breaks (DSBs), which are biased towards using a homologue rather than sister chromatid as ...
Bishop-Bailey, A +5 more
core +1 more source
bioRxiv, 2017 During meiotic prophase, a structure called the synaptonemal complex (SC) assembles at the interface between aligned pairs of homologous chromosomes, and crossover recombination events occur between their DNA molecules.
Divya Pattabiraman +3 more
openalex +3 more sources
Epigenetics of the Synaptonemal Complex
, 2012 Meiosis is a process composed of two divisions of the germ line cells without an intervenient S phase, thus there is no duplication of DNA between the first and the second meiotic divisions. The first meiotic division begins with the pre-leptotene that is the stage where the DNA replicates and chromosomes prepare to enter the meiotic prophase I in most
Abrahan Hernández-Hernández +2 more
openaire +4 more sources
The use of deidentified organ donor testes for research
Andrology, EarlyView.Abstract Our knowledge of testis development and function mainly comes from research using mammalian model organisms, primarily the mouse. However, there are integral differences between men and other mammalian species regarding cellular composition and expression profiles during fetal and post‐natal testis development and in the mature testis ...
Marina V. Pryzhkova +4 more
wiley +1 more source
AIMS Genetics, 2018 The Leprecan protein family which includes the prolyl 3-hydroxylase enzymes (P3H1, P3H2, and P3H3), the closely related cartilage-associated protein (CRTAP), and SC65 (Synaptonemal complex 65, aka P3H4, LEPREL4), is involved in the post-translational ...
Sarah M. Zimmerman +8 more
doaj +1 more source
The conserved XPF:ERCC1-like Zip2:Spo16 complex controls meiotic crossover formation through structure-specific DNA binding. [PDF]
, 2019 In eukaryotic meiosis, generation of haploid gametes depends on the formation of inter-homolog crossovers, which enable the pairing, physical linkage, and eventual segregation of homologs in the meiosis I division.
Arora, Kanika, Corbett, Kevin D
core
Cell Proliferation, EarlyView.PDHA2, a testis‐specific subunit of pyruvate dehydrogenase, is required for the conversion of pyruvate to acetyl‐CoA. Its absence results in decreased acetyl‐CoA and precursors for metabolites and energy during spermatogenesis. This results in decreased histone acetylation, defective chromosome structure and moderately reduced crossovers, ultimately ...
Guoqiang Wang +9 more
wiley +1 more source
Meiotic Chromosome Dynamics in Zebrafish
Frontiers in Cell and Developmental Biology, 2021 Recent studies in zebrafish have revealed key features of meiotic chromosome dynamics, including clustering of telomeres in the bouquet configuration, biogenesis of chromosome axis structures, and the assembly and disassembly of the synaptonemal complex ...
Yukiko Imai +5 more
doaj +1 more source