Results 101 to 110 of about 1,130,741 (368)

Reducing MSH4 copy number prevents meiotic crossovers between non-homologous chromosomes in Brassica napus

Nature Communications, 2019
Non-homologous crossovers impair correct chromosome segregation in allopolyploids. Here the authors show that most non-homologous crossovers in Brassica napus arise from MSH4-dependent recombination and provide evidence that post-polyploidization ...
Adrián Gonzalo, Marie-Odile Lucas, Catherine Charpentier, Greta Sandmann, Andrew Lloyd, Eric Jenczewski   +5 more
doaj   +1 more source

Synaptonemal Complex dimerization regulates chromosome alignment and crossover patterning in meiosis.

PLoS Genetics, 2021
During sexual reproduction the parental homologous chromosomes find each other (pair) and align along their lengths by integrating local sequence homology with large-scale contiguity, thereby allowing for precise exchange of genetic information.
Spencer G Gordon, Lisa E Kursel, Kewei Xu, Ofer Rog   +3 more
doaj   +1 more source

Tumor clusters with divergent inflammation and human retroelement expression determine the clinical outcome of patients with serous ovarian cancer

Molecular Oncology, EarlyView.
Analysis of treatment‐naïve high‐grade serous ovarian carcinoma (HGSOC) and control tissues for ERVs, LINE‐1 (L1), inflammation, and immune checkpoints identified five clusters with diverse patient recurrence‐free survivals. An inflammation score was calculated and correlated with retroelement expression, where one novel cluster (Triple‐I) with high ...
Laura Glossner, Markus Eckstein, Christoph Mark, Matthias W. Beckmann, Arndt Hartmann, Pamela L. Strissel, Reiner Strick   +6 more
wiley   +1 more source

CRA-1 uncovers a double-strand break-dependent pathway promoting the assembly of central region proteins on chromosome axes during C. elegans meiosis. [PDF]

PLoS Genetics, 2008
The synaptonemal complex (SC), a tripartite proteinaceous structure that forms between homologous chromosomes during meiosis, is crucial for faithful chromosome segregation.
Sarit Smolikov, Kristina Schild-Prüfert, Mónica P Colaiácovo   +2 more
doaj   +1 more source

Possible role of human ribonuclease dicer in the regulation of R loops

FEBS Open Bio, EarlyView.
R loops play an important role in regulating key cellular processes such as replication, transcription, centromere stabilization, or control of telomere length. However, the unscheduled accumulation of R loops can cause many diseases, including cancer, and neurodegenerative or inflammatory disorders. Interestingly, accumulating data indicate a possible
Klaudia Wojcik, Paulina Krzeminska, Anna Kurzynska‐Kokorniak   +2 more
wiley   +1 more source

Imputation-free reconstructions of three-dimensional chromosome architectures in human diploid single-cells using allele-specified contacts

Scientific Reports, 2022
Single-cell Hi-C analysis of diploid human cells is difficult because of the lack of dense chromosome contact information and the presence of homologous chromosomes with very similar nucleotide sequences.
Yoshito Hirata, Arisa H. Oda, Chie Motono, Masanori Shiro, Kunihiro Ohta   +4 more
doaj   +1 more source

Synteny analysis in Rosids with a walnut physical map reveals slow genome evolution in long-lived woody perennials. [PDF]

, 2015
BackgroundMutations often accompany DNA replication. Since there may be fewer cell cycles per year in the germlines of long-lived than short-lived angiosperms, the genomes of long-lived angiosperms may be diverging more slowly than those of short-lived ...
Aradhya, Mallikarjuna, Dandekar, Abhaya M, Dvorak, Jan, Leslie, Charles A, Li, Pingchuan, Luo, Ming-Cheng, McGuire, Patrick E, Wang, Ji-Rui, You, Frank M, Zhu, Tingting   +9 more
core   +2 more sources

Preparation and characterization of renal cell peptides from fetal rats for their antitumor activity

FEBS Open Bio, EarlyView.
This study aimed to prepare renal cells (RCs) from fetal rats which were digested by enzymes. Candidate peptides RCPs were characterized by capillary HPLC and MS and their bioactivity was predicted using peptideranker. The predicted top 10 bioactive peptides were synthesized.
Zhe Zhang, Yuan Cao, Jing Du, Ying Zhang, Junxia Wang, Ying Yuan, Lianqing Sun   +6 more
wiley   +1 more source

A fine-structure map of spontaneous mitotic crossovers in the yeast Saccharomyces cerevisiae. [PDF]

PLoS Genetics, 2009
Homologous recombination is an important mechanism for the repair of DNA damage in mitotically dividing cells. Mitotic crossovers between homologues with heterozygous alleles can produce two homozygous daughter cells (loss of heterozygosity), whereas ...
Phoebe S Lee, Patricia W Greenwell, Margaret Dominska, Malgorzata Gawel, Monica Hamilton, Thomas D Petes   +5 more
doaj   +1 more source

Comparative Chromosome Maps of Neotropical Rodents Necromys lasiurus and Thaptomys nigrita (Cricetidae) Established by ZOO-FISH [PDF]

, 2011
This work presents chromosome homology maps between Mus musculus (MMU) and 2 South American rodent species from the Cricetidae group: Necromys lasiurus (NLA, 2n = 34) and Thaptomys nigrita (TNI, 2n = 52), established by ZOO-FISH using mouse chromosome ...
Diaz GB, D’Élia G, D’Élia G, Engelbrecht A, Fagundes V, Ford CE, Gallardo MH, Geise L, Hass I, I. Hass, I.J. Sbalqueiro, Matsubara K, Matsubara K, Musser GG, Nakamura T, R.F. Artoni, Rambau RV, Reig OA, Romanenko SA, S. Müller, Sbalqueiro IJ, Seabright M, Silva MJ, Smith MF, Smith MF, Stanyon R, Ventura K, Ventura K, Yang F   +28 more
core   +1 more source