Bovine oocytes, Nuclei, Chromatin

Germinal Vesicle Oocytes Development 

Bovine oocytes continue their development, increase their size and enhance their competence during antral follicles growth; concomitantly, oocyte germinal vesicle (GV) nuclei develop from GV0 to GV3 decreasing their size and modifying their chromatin condensation (Fair et al., 2002; Lodde et al., 2007).


References 

Fair, T., Hyttel, P., Motlik, J., Boland, M., & Lonergan, P. (2002). Maintenance of meiotic arrest in bovine oocytes in vitro using butyrolactone I: effects on oocyte ultrastructure and nucleolus function. Molecular Reproduction and Development: Incorporating Gamete Research, 62(3), 375-386. 

Lodde, V., Modina, S., Galbusera, C., Franciosi, F., & Luciano, A. M. (2007). Large‐scale chromatin remodeling in germinal vesicle bovine oocytes: Interplay with gap junction functionality and developmental competence. Molecular Reproduction and Development: Incorporating Gamete Research, 74(6), 740-749. 

 

Personal design of oocytes and their germinal vesicle 
nuclei, the oocyte diameter inceases meanwhile the 
nuclear diameter decreases. GV; germinal vesicle.






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