Oogenesis

Drosophila oogenesis

cytoplasmic tail and prevents their internalization and degradation. Similarly to β-catenin, unbound p120ctn can translocate to the nucleus where it binds Kaiso, a zinc finger transcription factor that acts as a transcriptional repressor. Once bound to Kaiso, p120ctn relieves the repressor activity of Kaiso by dissociating it from its sequence-specific binding sites. As with β-catenin, Wnt sign...

Oogenesis: Matrix Revolutions

The mechanism of egg-chamber elongation during Drosophila oogenesis has always been mysterious. A new study shows that the egg chambers spin around their long axis laying down polarised extracellular matrix, which acts as a molecular corset to restrict radial expansion.

Oogenesis: Active Heterochromatin

The genome of Drosophila is protected from DNA damage during oogenesis by a mechanism involving short RNAs. Surprisingly transcription of these RNAs requires that their DNA is associated with a histone modification usually associated with gene silencing.

Oogenesis and spermatogenesis pdf

Oogenesis in adult prosimians.

INTRODUCTION It is widely accepted that oogenesis normally stops early in mammalian development (see Brambell, 1956; Franchi, Mandl & Zuckerman, 1962). Nevertheless, it has been claimed that mitotically active oogonia, and oocytes in early stages of meiotic prophase occur in mature specimens of Galago senegalensis (Gerard, 1920, 1932; Gerard & Herlant, 1953; Herlant, 1961; Petter-Rousseaux, 196...