Positional changes of pericentromeric heterochromatin and nucleoli in postmitotic Purkinje cells during murine cerebellum development
نویسندگان
چکیده
منابع مشابه
Epigenetic regulation of pericentromeric heterochromatin during mammalian meiosis.
Mammalian meiosis is a process that allows diploid progenitor germ cells to produce haploid gametes after proceeding through 2 rounds of cell divisions. The first division (MI) is unique and results in the separation of homologous chromosomes, while the second division (MII) leads to the separation of sister chromatids similar to a somatic cell division. However, the mechanisms by which meiotic...
متن کاملRepopulation of Postmitotic Nucleoli by Preformed Rna
The reconstruction of the nucleolus after mitosis was analyzed by electron microscopy in cultured mammalian (L929) cells in which nucleolar RNA synthesis was inhibited for a 3 h period either after or before mitosis. When synchronized mitotic cells were plated into a concentration of actinomycin D sufficient to block nucleolar RNA synthesis preferentially, nucleoli were formed at telophase as u...
متن کاملeffectiveness of hedstroum files and rotary k3 instruments in removal of obturation materials during retreatment in curved canals
چکیده ندارد.
15 صفحه اولChanges of ganglioside pattern during postnatal development of rat cerebellum.
proteins is also possible. This enrichment coincides, not only with the late period of differentiation of the granule cells (the most abundant cells in the cerebellum), but also (from day 30) with synapse formation between parallel fibres and Purkinje-cell dendrites in the external region of the molecular layer, and to the coating of the Purkinje dendrites in the same region by Bergman glia (Al...
متن کاملEuchromatin and pericentromeric heterochromatin: comparative composition in the tomato genome.
Eleven sequenced BACs were annotated and localized via FISH to tomato pachytene chromosomes providing the first global insights into the compositional differences of euchromatin and pericentromeric heterochromatin in this model dicot species. The results indicate that tomato euchromatin has a gene density (6.7 kb/gene) similar to that of Arabidopsis and rice. Thus, while the euchromatin compris...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Cytogenetic and Genome Research
سال: 2004
ISSN: 1424-8581,1424-859X
DOI: 10.1159/000078202