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oogenesis
Also known as GO:0048477, ovum development, ovogenesis, oögenesis
Oogenesis () or ovogenesis is the differentiation of the ovum (egg cell) into a cell competent to further develop when fertilized. It is developed from the primary oocyte by maturation. Oogenesis is initiated during embryonic development.
Key facts
- Anatomy.Name
- Oogenesis
- Anatomy.Image
- Oogenesis.png
- Anatomy.Caption
- Oogenesis is the process of the production of egg cells that takes places in the ovaries
via Wikipedia infobox
Research
12,749 papers- Molecular control of oogenesis.Biochimica et biophysica acta · 2012
- Oogenesis in Caenorhabditis elegans.Sexual development : genetics, molecular biology, evolution, endocrinology, embryology, and pathology of sex determination and differentiation · 2023
- Spatiotemporal dynamics of early oogenesis in pigs.Genome biology · 2025
- Neo-oogenesis in mammals.Zygote (Cambridge, England) · 2017
- Peptides in insect oogenesis.
~18 min read
Article
19 sectionsContents
- Stages
- The creation of oogonia
- Maintenance of meiotic arrest
- Reinitiation of meiosis and stimulation of ovulation by luteinizing hormone
- In humans
- Number of primary oocytes
- Ootidogenesis
- Meiosis I
- Meiosis II
- Ovarian cycle
- Uterine cycle
- Maturation into ovum
- In vitro maturation
- In vitro oogenesis
- Ovarian aging
- Other animals and plants
- See also
- References
- External links
Oogenesis () or ovogenesis is the differentiation of the ovum (egg cell) into a cell competent to further develop when fertilized. It is developed from the primary oocyte by maturation. Oogenesis is initiated during embryonic development.
==Stages== thumb|left|Diagram showing the reduction in number of the chromosomes in the process of maturation of the [[ovum. (In mammals, the first polar body normally disintegrates before dividing, so only two polar bodies are produced.)]]