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 +9 more
core +3 more sources
LARP7 family proteins have conserved function in telomerase assembly
Nature Communications, 2018 The telomerase holoenzyme is minimally composed of the reverse transcriptase and the RNA template. Here the authors identify Lar7 as a member of the full complex that helps to stabilise it and protect telomerase RNA from degradation.
Laura C. Collopy +11 more
doaj +1 more source
Rad53 checkpoint kinase regulation of DNA replication fork rate via Mrc1 phosphorylation
eLife, 2021 The Rad53 DNA checkpoint protein kinase plays multiple roles in the budding yeast cell response to DNA replication stress. Key amongst these is its enigmatic role in safeguarding DNA replication forks.
Allison W McClure, John FX Diffley
doaj +1 more source
Chromosomal rearrangements in cattle and pigs revealed by chromosome microdissection and chromosome painting [PDF]
Genetics Selection Evolution, 2003 A pericentric inversion of chromosome 4 in a boar, as well as a case of (2q-;5p+) translocation mosaicism in a bull were analysed by chromosome painting using probes generated by conventional microdissection. For the porcine inversion, probes specific for p arms and q arms were produced and hybridised simultaneously on metaphases of a heterozygote ...
Pinton, Alain +2 more
openaire +8 more sources
A strategy for the characterization of minute chromosome rearrangements using multiple color fluorescence in situ hybridization with chromosome-specific DNA libraries and YAC clones [PDF]
, 1993 The identification of marker chromosomes in clinical and tumor cytogenetics by chromosome banding analysis can create problems. In this study, we present a strategy to define minute chromosomal rearrangements by multicolor fluorescence in situ ...
A Kallioniemi +31 more
core +1 more source
Chromosome breakpoint distribution of damage induced in peripheral blood lymphocytes by densely ionising radiation [PDF]
, 2006 Purpose: To assess the chromosomal breakpoint distribution in human peripheral blood lymphocytes (PBL) after exposure to a low dose of high linear energy transfer (LET) α-particles using the technique of multiplex fluorescence in situ hybridisation (m ...
Anderson, RM +3 more
core +1 more source
The radial arrangement of the human chromosome 7 in the lymphocyte cell nucleus is associated with chromosomal band gene density [PDF]
, 2008 This is the author's accepted manuscript. The final published article is available from the link below. Copyright @ Springer-Verlag 2008.In the nuclei of human lymphocytes, chromosome territories are distributed according to the average gene density of ...
A Bolzer +53 more
core +1 more source
A conserved filamentous assembly underlies the structure of the meiotic chromosome axis. [PDF]
, 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
Structure of the cohesin loader Scc2
Nature Communications, 2017 The cohesin complex maintains genome integrity by ensuring correct sister-chromatid segregation during mitosis and meiosis. Here, Chaoet al. present a pseudo-atomic model of the full-length Scc2–Scc4 cohesin loader complex and reveal key Scc2 surfaces ...
William C. H. Chao +10 more
doaj +1 more source
The Origin of a New Sex Chromosome by Introgression between Two Stickleback Fishes. [PDF]
, 2019 Introgression is increasingly recognized as a source of genetic diversity that fuels adaptation. Its role in the evolution of sex chromosomes, however, is not well known. Here, we confirm the hypothesis that the Y chromosome in the ninespine stickleback,
Abbott +78 more
core +1 more source