Meiotic chromosome configurations in oocytes of Cobitis taenia and its polyploid hybrids
نویسندگان
چکیده
منابع مشابه
O-9: Spindle and Chromosome Configurations of Human Oocytes Matured In vitro in Two Different Culture Media
Background: In vitro maturation can have deleterious effects on spindle formation and proper chromosome alignment in human oocytes and can be profoundly affected by culture conditions. This study compared the spindle presence and location with the maturation rate Abstracts of the 12th Royan International Congress on Reproductive Biomedicine 3 1 International Journal of Fertility & Sterility (IJ...
متن کاملMeiotic spindle assembly and chromosome segregation in oocytes
611 The Rockefeller University Press $30.00 J. Cell Biol. Vol. 215 No. 5 611–619 https://doi.org/10.1083/jcb.201607062 Introduction Sexual reproduction relies on the fusion of paternal and maternal haploid gametes—the sperm and the extremely large oocyte, respectively—forming a new diploid organism. Meiotic divisions contribute solely to the formation of haploid gametes. They consist of two suc...
متن کاملMeiotic spindle assembly and chromosome segregation in oocytes
Oocytes accumulate maternal stores (proteins, mRNAs, metabolites, etc.) during their growth in the ovary to support development after fertilization. To preserve this cytoplasmic maternal inheritance, they accomplish the difficult task of partitioning their cytoplasm unequally while dividing their chromosomes equally. Added to this complexity, most oocytes, for reasons still speculative, lack th...
متن کاملTiming of sequential changes in chromosome configurations during the 1st meiotic division of pig oocytes cultured in vitro.
This study examines the timing of changes in chromosome configurations of pig oocytes derived from small antral follicles of follicular and/or inactive stage donors using modified 199 medium supplemented with gonadotropins (Follicle Stimulating Hormone (FSH), 10 IU/ml; Human Chorionic Gonadotropin (hCG), 10 IU/ml) and Glucosamine (0.539 mg/ml). Oocytes (n = 1,215) were fixed at the end of 3 hou...
متن کاملX Chromosome Control of Meiotic Chromosome Synapsis in Mouse Inter-Subspecific Hybrids
Hybrid sterility (HS) belongs to reproductive isolation barriers that safeguard the integrity of species in statu nascendi. Although hybrid sterility occurs almost universally among animal and plant species, most of our current knowledge comes from the classical genetic studies on Drosophila interspecific crosses or introgressions. With the house mouse subspecies Mus m. musculus and Mus m. dome...
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: Ichthyological Research
سال: 2016
ISSN: 1341-8998,1616-3915
DOI: 10.1007/s10228-016-0556-1