Results 101 to 110 of about 187,172 (325)

T2T Genomes Unveil Centromere Architecture and Adaptive Divergence in Large Yellow Croaker (Larimichthys crocea)

Advanced Science, EarlyView.
This study presents telomere‐to‐telomere genome assemblies for two populations of Larimichthys crocea. We identified centromere‐specific tandem repeats invaded by LTR/ERV1 retrotransposons, unique 5S rRNA enrichment patterns, and population‐specific structural variants. Comparative genomic analyses further reveal distinct adaptive mechanisms in the MYD
Yu Cui, Yingbo Yuan, Bi Wang, Baolan Wu, Mingyi Cai, Ming Fang, Weiliang Shen, Xiongfei Wu, Fang Han, Zhiyong Wang   +9 more
wiley   +1 more source

In Vivo Imaging of the Segregation of the 2 Chromosomes and the Cell Division Proteins of Rhodobacter sphaeroides Reveals an Unexpected Role for MipZ

mBio, 2019
Coordinating chromosome duplication and segregation with cell division is clearly critical for bacterial species with one chromosome. The precise choreography required is even more complex in species with more than one chromosome.
Nelly Dubarry, Clare R. Willis, Graeme Ball, Christian Lesterlin, Judith P. Armitage   +4 more
doaj   +1 more source

How to halve ploidy : lessons from budding yeast meiosis [PDF]

, 2012
Maintenance of ploidy in sexually reproducing organisms requires a specialized form of cell division called meiosis that generates genetically diverse haploid gametes from diploid germ cells.
Arumugam, Prakash, Kerr, Gary W., Sarkar, Sourav   +2 more
core   +1 more source

Entropy as the driver of chromosome segregation [PDF]

Nature Reviews Microbiology, 2010
We present a new physical biology approach to understanding the relationship between the organization and segregation of bacterial chromosomes. We posit that replicated Escherichia coli daughter strands will spontaneously demix as a result of entropic forces, despite their strong confinement within the cell; in other words, we propose that entropy can ...
Andrew Wright, Suckjoon Jun
openaire   +2 more sources

m6A Reader hnRNPA2B1 Modulates Late Pachytene Progression in Male Meiosis Through Post‐Transcriptional Control

Advanced Science, EarlyView.
As an m6A reader, hnRNPA2B1 predominantly regulates specific transcripts (e.g., Ep400, Rrs1) that are essential for chromosome organization and remodeling in an m6A‐dependent manner. Furthermore, it is demonstrated to interact with factors involved in mRNA processing and translation. This dual functionality is pivotal for ensuring the proper occurrence
Lisha Yin, Yuting Zhang, Bingqian Zhang, Jin Zhang, Mengneng Xiong, Nan Jiang, Jinxin Xiao, Huihui Gao, Wenjing Xiong, Xiaoli Wang, Fengli Wang, Shuiqiao Yuan   +11 more
wiley   +1 more source

p53 Prohibits Propagation of Chromosome Segregation Errors that Produce Structural Aneuploidies

Cell Reports, 2017
Summary: The presence of an abnormal karyotype has been shown to be profoundly detrimental at the cellular and organismal levels but is an overt hallmark of cancer.
Mar Soto, Jonne A. Raaijmakers, Bjorn Bakker, Diana C.J. Spierings, Peter M. Lansdorp, Floris Foijer, René H. Medema   +6 more
doaj   +1 more source

Complementary approaches to identify genes important for chromosome segregation [PDF]

, 2007
Faithful transmission of chromosomes during cell division is essential to the functioning of the eukaryotic cell. In humans, errors during chromosome segregation are correlated with diseases such as Down Syndrome and cancer.
Bjorge, Ashley, Bryant, Andy, Lauer, Stephen, Levesque, Erin, Madsen, Rebecca, Meyer, Katy A., Rimbey, Guy, Sleister, Heidi, Starkweather, Ashley, Verdick, Christopher, Watson, Bryan   +10 more
core   +1 more source

Genome-wide high-resolution mapping of UV-induced mitotic recombination events in Saccharomyces cerevisiae. [PDF]

, 2013
In the yeast Saccharomyces cerevisiae and most other eukaryotes, mitotic recombination is important for the repair of double-stranded DNA breaks (DSBs). Mitotic recombination between homologous chromosomes can result in loss of heterozygosity (LOH).
Petes, Thomas D, Yin, Yi
core   +1 more source

Organoid Modeling of Mouse Anterior Tongue Epithelium Reveals Regional and Cellular Identities

Advanced Science, EarlyView.
The tongue's anterior epithelium is maintained by region‐specific stem/progenitor cells, yet in vitro models are limited. Long‐term expanding organoids are developed from adult mouse anterior tongue that retain region‐specific identity, cellular diversity, and gene regulatory features. These organoids differentiate into keratinocytes, Merkel‐like cells,
Seok‐Young Kim, Laurens H. G. Verweij, Lin Lin, Johan H. van Es, Jay Slack, Chris Winkel, Tito Candelli, Philip Lijnzaad, Thanasis Margaritis, Gerben E. Breimer, Karin Sanders, Marc van de Wetering, Hans Clevers   +12 more
wiley   +1 more source

Loop-extruders alter bacterial chromosome topology to direct entropic forces for segregation

Nature Communications
Entropic forces have been argued to drive bacterial chromosome segregation during replication. In many bacterial species, however, specifically evolved mechanisms, such as loop-extruding SMC complexes and the ParABS origin segregation system, contribute ...
Janni Harju, Muriel C. F. van Teeseling, Chase P. Broedersz   +2 more
doaj   +1 more source