Structure of the nucleoli in domestic cattle spermatocytes

DSpace/Manakin Repository

Show full item record

Title Structure of the nucleoli in domestic cattle spermatocytes
Autor: Andraszek, Katarzyna; Smalec, Elżbieta
URI: http://hdl.handle.net/11331/388
Date: 2012
Źródło: Folia Histochemica et Cytobiologica. - Vol. 50, no. 3 (2012), pp. 346-35
Abstract: The use of AgNO3 staining, commonly applied in cytogenetics to identify nucleolar organizer regions, has made it possible to identify nucleoli in primary spermatocytes. One nucleolus was identified in each analyzed cell. Considerable morphological differentiation of the nucleoli during the prophase of the first meiotic division, particularly in leptotene, unobserved in other farm animal species, was noticed. Dark-hued grain-like structures were found within the disintegrating nucleoli, corresponding approximately or exactly to the number of the nucleolar organizer regions in the domestic cattle karyotype. Dark areas were identified in the selected prometaphase chromosomes. Their number corresponded with the number of active NORs defined in the domestic cattle karyotype.

Files in this item

This item appears in the following Collection(s)

Search DSpace


Advanced Search

Browse

My Account

Statistics