To summarize, the cell subtype percentages of zygotene and diplotene
for CBZ-, IPR- and CCK-treated cell cultures followed the same decreasing trend compared with controls.
1976) chiasma terminalization is 'a progressive shift between diplotene
and metaphase I in the distribution of chiasmata along the arms of bivalents from their points of origin to more distal positions'.
As the behavior between XR and Y during diplotene
and diakinesis are different in the species of both genera, it seems that the X-A fusion has occurred independently in two ancestral species of each genus.
From pachytene to diplotene
, a conspicuous nucleolus is observed associated with both sex chromosomes (Fig.
In the prophase of first meiotic division, the large majority of diplotene
stages show XR and Y in contact at the distal end (Fig.
Se distingue en el citosol un notorio cuerpo vitelino o de Balbiani, con numerosas vacuolas a su alrededor, mientras que, en el interior del nucleo se observan los cromosomas en diplotene
con configuracion Lumpbrush (Fig.
This phase of meiosis is completed only to the diplotene
Primary oocyte growth (size ~ 25-270 [micro]m): The first phase of oocyte growth starts with the arrest of meiosis in diplotene
In the diplotene
cells, the occurrence of an interstitial chiasma was observed in three bivalents, in the cells with 15 = 7II + X, and in six bivalents, in the cells with 30 = 14II + 2X.
The primary spermatocyte consists of 5 stages: leptotene (LSc), zygotene (ZSc), pachytene (PSc), diplotene
(DSc) and metaphase (MSc) (Figs.