Results 11 to 20 of about 115,560 (292)

DEFECTIVE ENDOSPERM-D1 (Dee-D1) is crucial for endosperm development in hexaploid wheat

open access: yesCommunications Biology, 2020
Natalia Tikhenko et al. investigate the genetic contribution of the wheat chromosome 1D to its development and evolution. They find a novel locus, DEFECTIVE ENDOSPERM-D1, on the long arm of 1D that is required for normal endosperm development as its ...
Natalia Tikhenko   +13 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

Fission yeast neddylation ligase Dcn1 facilitates cohesin cleavage and chromosome segregation at anaphase

open access: yesBiology Open, 2017
Post-translational protein modification such as phosphorylation and ubiquitination are critical during mitosis to ensure proper timing and progression of chromosome segregation.
Lan Lin, Li Chen, Phong T. Tran
doaj   +1 more source

Ultrastructural analysis in yeast reveals a meiosis-specific actin-containing nuclear bundle

open access: yesCommunications Biology, 2021
Using freeze-substitution electron microscopy, Takagi et al identify nuclear actin-containing bundles within meiotic yeast cells. These bundles are absent in stages other than meiosis I and in spo11 mutants defective in homologous recombination, allowing
Tomoko Takagi   +2 more
doaj   +1 more source

Recently recognized chromosomal defects of clinical importance [PDF]

open access: yesPostgraduate Medical Journal, 1986
SummaryWe review those conditions which have recently been recognized to be associated with small, sometimes difficult to detect, chromosomal abnormalities. These include the Prader-Willi syndrome and X-linked mental retardation.
M, Pembrey, M, Baraitser
openaire   +2 more sources

The asymmetry of female meiosis reduces the frequency of inheritance of unpaired chromosomes

open access: yeseLife, 2015
Trisomy, the presence of a third copy of one chromosome, is deleterious and results in inviable or defective progeny if passed through the germ line.
Daniel B Cortes   +3 more
doaj   +1 more source

Loss of Cdc13 causes genome instability by a deficiency in replication-dependent telomere capping.

open access: yesPLoS Genetics, 2020
In budding yeast, Cdc13, Stn1, and Ten1 form the telomere-binding heterotrimer CST complex. Here we investigate the role of Cdc13/CST in maintaining genome stability by using a Chr VII disome system that can generate recombinants, chromosome loss, and ...
Rachel E Langston   +4 more
doaj   +1 more source

Choroid plexus cysts and chromosomal defects

open access: yesThe British Journal of Radiology, 1990
Abstract During a 4-year period, 83 pregnant women with fetal choroid plexus cysts were investigated in our unit. Abnormal karyotypes were found in 20 fetuses, including trisomy 18 (n = 16), trisomy 13 (n = 1), triploidy (n = 1) and translocation Down's syndrome (n = 2).
J G, Thorpe-Beeston   +2 more
openaire   +2 more sources

Delayed Chromosome Alignment to the Spindle Equator Increases the Rate of Chromosome Missegregation in Cancer Cell Lines

open access: yesBiomolecules, 2018
For appropriate chromosome segregation, kinetochores on sister chromatids have to attach to microtubules from opposite spindle poles (bi-orientation).
Kinue Kuniyasu   +2 more
doaj   +1 more source

A novel MCPH1 isoform complements the defective chromosome condensation of human MCPH1-deficient cells. [PDF]

open access: yesPLoS ONE, 2012
Biallelic mutations in MCPH1 cause primary microcephaly (MCPH) with the cellular phenotype of defective chromosome condensation. MCPH1 encodes a multifunctional protein that notably is involved in brain development, regulation of chromosome condensation,
Ioannis Gavvovidis   +8 more
doaj   +1 more source

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