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Dynamic Histone H3 Modifications Regulate Meiosis Initiation via Respiration

open access: yesFrontiers in Cell and Developmental Biology, 2021
Meiosis is essential for genetic stability and diversity during sexual reproduction in most eukaryotes. Chromatin structure and gene expression are drastically changed during meiosis, and various histone modifications have been reported to participate in
Jian Shi   +6 more
doaj   +1 more source

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

open access: yes, 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

To Make a Long Spindle Short: Nuclear Envelope Breakdown during Meiosis

open access: yesCell Reports, 2018
In fission yeast, the nuclear envelope (NE) remains intact during mitosis and meiosis I but is compromised during meiosis II. In this issue of Cell Reports, Flor-Parra et al.
Joseph M. Varberg, Sue L. Jaspersen
doaj   +1 more source

The DcPS1 cooperates with OSDLa during pollen development and 2n gamete production in carnation meiosis

open access: yesBMC Plant Biology, 2022
Background Deciphering the mechanisms of meiosis has important implications for potential applications in plant breeding programmes and species evolution.
Xuhong Zhou, Shuying Li, Xiaomi Yang
doaj   +1 more source

The Cyclin B2/CDK1 Complex Conservatively Inhibits Separase Activity in Oocyte Meiosis II

open access: yesFrontiers in Cell and Developmental Biology, 2021
Recently, we have reported that the cyclin B2/CDK1 complex regulates homologous chromosome segregation through inhibiting separase activity in oocyte meiosis I, which further elucidates the compensation of cyclin B2 on cyclin B1’s function in meiosis I ...
Jian Li   +7 more
doaj   +1 more source

The Hop2-Mnd1 Complex and Its Regulation of Homologous Recombination

open access: yesBiomolecules, 2023
Homologous recombination (HR) is essential for meiosis in most sexually reproducing organisms, where it is induced upon entry into meiotic prophase. Meiotic HR is conducted by the collaborative effort of proteins responsible for DNA double-strand break ...
Hideo Tsubouchi
doaj   +1 more source

HIM-10 is required for kinetochore structure and function on Caenorhabditis elegans holocentric chromosomes. [PDF]

open access: yes, 2001
Macromolecular structures called kinetochores attach and move chromosomes within the spindle during chromosome segregation. Using electron microscopy, we identified a structure on the holocentric mitotic and meiotic chromosomes of Caenorhabditis elegans ...
Albertson   +33 more
core   +2 more sources

Evolutionary mysteries in meiosis [PDF]

open access: yesPhilosophical Transactions of the Royal Society B: Biological Sciences, 2016
AbstractMeiosis is a key event of sexual life cycles in eukaryotes. Its mechanistic details have been uncovered in several model organisms, and most of its essential features have received various and often contradictory evolutionary interpretations. In this perspective, we present an overview of these often “weird” features.
Thomas Lenormand   +4 more
openaire   +7 more sources

Meiosis I chromosome segregation is established through regulation of microtubule–kinetochore interactions

open access: yeseLife, 2012
During meiosis, a single round of DNA replication is followed by two consecutive rounds of nuclear divisions called meiosis I and meiosis II. In meiosis I, homologous chromosomes segregate, while sister chromatids remain together.
Matthew P Miller   +3 more
doaj   +1 more source

TDM1 Regulation Determines the Number of Meiotic Divisions. [PDF]

open access: yesPLoS Genetics, 2016
Cell cycle control must be modified at meiosis to allow two divisions to follow a single round of DNA replication, resulting in ploidy reduction. The mechanisms that ensure meiosis termination at the end of the second and not at the end of first division
Marta Cifuentes   +12 more
doaj   +1 more source

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