Results 91 to 100 of about 134,346 (229)

ATXR5 and ATXR6 restrict meiotic crossover formation within heterochromatin in Arabidopsis

Journal of Integrative Plant Biology, EarlyView.
The Arabidopsis H3K27 mono‐methyltransferases ATXR5 and ATXR6 repress crossovers within meiotic heterochromatin, are required for heterochromatin condensation and H3K27me1 establishment, and specifically influence the maintenance of DNA methylation in meiocytes.
Jun Zhang, Yue Yu, Han Wang, Meiling Li, Dingning Li, Chenjiang You, Yingxiang Wang, Cong Wang   +7 more
wiley   +1 more source

Meiosis: mouse eggs do their anaphase topsy-turvy [PDF]

, 2012
The meiotic separation of sister chromatids in mature metaphase II mouse eggs is observed to depend initially on spindle lengthening (Anaphase B), then on microtubule shortening (Anaphase A).
Jones, Keith T., Keith T. Jones, Jones, KT   +2 more
core   +1 more source

A robust biotechnology induces artificial genomic duplication via transient RNAi‐mediated suppression of OSD1 in rice

Journal of Integrative Plant Biology, EarlyView.
Plant Polyploidization via Gene Interference, a robust technology for inducing polyploidy in various rice accessions, uses transient RNAi‐mediated suppression of OSD1 to induce genomic duplication. Two strategies were used to directly induce fertile autotetraploid plants in the first generation, thereby substantially shortening the breeding cycle ...
Zijun Lu, Lianjun Zhu, Guobin Liang, Rou Chen, Yu Huang, Jia Yang, Liang Fu, Xiangxing Zhao, Runze Wu, Xiangdong Liu   +9 more
wiley   +1 more source

Specific detection of fission yeast primary septum reveals septum and cleavage furrow ingression during early anaphase independent of mitosis completion.

PLoS Genetics, 2018
It is widely accepted in eukaryotes that the cleavage furrow only initiates after mitosis completion. In fission yeast, cytokinesis requires the synthesis of a septum tightly coupled to cleavage furrow ingression.
Juan Carlos G Cortés, Mariona Ramos, Mami Konomi, Iris Barragán, M Belén Moreno, María Alcaide-Gavilán, Sergio Moreno, Masako Osumi, Pilar Pérez, Juan Carlos Ribas   +9 more
doaj   +1 more source

The MacBrain Resource Center (MBRC) rhesus macaque embryonic brain histology datasets

Journal of Anatomy, EarlyView.
We introduce the MacBrain Resource Center (MBRC) Collections of rhesus macaque embryonic brain tissue. Here, we illustrate histo‐ and immunohistology from our dynamically growing Collection 6, which currently contains >10,000 zoomable and downloadable images from n = 14 male and female embryos from early to late in gestation.
Valeria Mendoza‐Silva, Emma Burke, Lucy Greene, Mikhail Rodov, Janja Kopić, Phil Barello, Yury M. Morozov, Keiko Moriya‐Ito, Chiaki Ohtaka‐Maruyama, Zeljka Krsnik, Pasko Rakic, Alvaro Duque   +11 more
wiley   +1 more source

Single‐Nucleus Transcriptome Analysis Provides New Insights Into B Chromosome Elimination in Sorghum

Plant Biotechnology Journal, EarlyView.
ABSTRACT B chromosomes are supernumerary entities found in many plant species, with some exhibiting tissue‐specific elimination. In Sorghum purpureosericeum, extensive B chromosome elimination occurs during embryogenesis affecting most of the embryonic organs, leaving the B chromosome maintained mainly in limited regions of meristems.
T. Bojdová, P. Abaffy, L. Valihrach, M. Karafiátová, J. Bartoš   +4 more
wiley   +1 more source

Blocking microtubule deacetylation inhibits anaphase chromosome movements in crane-fly spermatocytes.

PLoS ONE
Chromosome movement speeds during anaphase are regulated by depolymerization of microtubules. Several models describe chromosome movement during cell division but none of them consider post-translational modifications of tubulin, even though such ...
Maral Janan, Jess MacPherson, Arthur Forer   +2 more
doaj   +1 more source

Cdk1 inactivation induces post-anaphase-onset spindle migration and membrane protrusion required for extreme asymmetry in mouse oocytes

Nature Communications, 2018
Female meiotic divisions are asymmetric with the formation of large oocytes and small polar bodies, thought to result from cortical spindle placement before anaphase.
Zhe Wei, Jessica Greaney, Chenxi Zhou, Hayden A. Homer   +3 more
doaj   +1 more source

New Considerations on Meiosis, Affinity and Genomic Constitution in Aneuploids and Interploid Hybrids of Urochloa P. Beauv. (Brachiaria)

Plant Breeding, EarlyView.
ABSTRACT The combination of polyploidy, apomixis and the formation of aneuploid and interploid hybrids makes the genus Urochloa an interesting system for investigating meiotic stability and genome behaviour in grasses. In this study, routine meiotic analysis and genomic in situ hybridization (GISH) were used to (i) evaluate meiosis in three hybrids of ...
Isabella Campos Moraes, Pedro Henrique Mendes Carvalho, Fausto Souza Sobrinho, Vânia Helena Techio   +3 more
wiley   +1 more source

Meeting in the middle before parting: anaphase lagging [Mitosis movie series; 5]

, 2011
Presents Mitotic PtK1 cell microinjected with X-rhodamine-labeled tubulin and Alexa 488-labeled CENP-F antibodies to fluorescently label kinetochore fibers (red) and kinetochores/spindle poles (green), respectively.
Cimini, Daniela, Cameron, Lisa A., Salmon, Edward D.   +2 more
core   +2 more sources