Results 31 to 40 of about 7,944 (193)

Synaptonemal complex karyotype of zebrafish [PDF]

open access: yesHeredity, 2003
Meiotic cells of zebrafish have been prepared to show synaptonemal complexes (SCs) by light and electron microscopy. Completely paired SCs from both spermatocytes and oocytes were measured to produce an SC karyotype. The SC karyotype resembles the somatic karyotype of zebrafish and has no recognisable sex bivalent.
B M N, Wallace, H, Wallace
openaire   +2 more sources

Mutation of the mouse Syce1 gene disrupts synapsis and suggests a link between synaptonemal complex structural components and DNA repair.

open access: yesPLoS Genetics, 2009
In mammals, the synaptonemal complex is a structure required to complete crossover recombination. Although suggested by cytological work, in vivo links between the structural proteins of the synaptonemal complex and the proteins of the recombination ...
Ewelina Bolcun-Filas   +7 more
doaj   +1 more source

C14ORF39/SIX6OS1 is a constituent of the synaptonemal complex and is essential for mouse fertility

open access: yesNature Communications, 2016
The synaptonemal complex is a meiosis-specific proteinaceous structure that supports homologous chromosome pairs during meiosis. Here, the authors show that SIX6OS1 (of previously unknown function) is part of the synaptonemal complex central element and ...
Laura Gómez-H   +12 more
doaj   +1 more source

A molecular cell biology toolkit for the study of meiosis in the silkworm Bombyx mori

open access: yesG3: Genes, Genomes, Genetics, 2023
Meiosis is usually described as 4 essential and sequential processes: (1) homolog pairing; (2) synapsis, mediated by the synaptonemal complex; (3) crossing over; and (4) segregation.
Youbin Xiang   +9 more
doaj   +1 more source

Sycp2 is essential for synaptonemal complex assembly, early meiotic recombination and homologous pairing in zebrafish spermatocytes.

open access: yesPLoS Genetics, 2020
Meiotic recombination is essential for faithful segregation of homologous chromosomes during gametogenesis. The progression of recombination is associated with dynamic changes in meiotic chromatin structures.
Kazumasa Takemoto   +6 more
doaj   +1 more source

A BIRD´S-EYE VIEW OF CHROMOSOMES DURING MEIOTIC PROPHASE I [PDF]

open access: yesBAG. Journal of Basic and Applied Genetics, 2022
The present review aims to summarize the research carried out in relation to meiosis in birds, especially by observing the protein axes of the chromosomes in prophase I of meiosis. This line of research, initially developed in Argentina, has provided key
Pigozzi M.I.
doaj   +1 more source

Synaptonemal Complexities and Commonalities [PDF]

open access: yesMolecular Cell, 2003
Formation of synaptonemal complex and high levels of homologous recombination are the hallmarks of meiotic prophase. The relationship between these two processes has been the subject of intense study for nearly 50 years. Recent findings highlight the differences and commonalities of this relationship in different species.
openaire   +2 more sources

Human disease locus discovery and mapping to molecular pathways through phylogenetic profiling

open access: yesMolecular Systems Biology, 2013
Genes with common profiles of the presence and absence in disparate genomes tend to function in the same pathway. By mapping all human genes into about 1000 clusters of genes with similar patterns of conservation across eukaryotic phylogeny, we ...
Yuval Tabach   +9 more
doaj   +1 more source

Surveillance of cohesin-supported chromosome structure controls meiotic progression

open access: yesNature 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

Synaptonemal complex components promote centromere pairing in pre-meiotic germ cells. [PDF]

open access: yesPLoS Genetics, 2013
Mitosis and meiosis are two distinct cell division programs. During mitosis, sister chromatids separate, whereas during the first meiotic division, homologous chromosomes pair and then segregate from each other.
Nicolas Christophorou   +2 more
doaj   +1 more source

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