Dictyate
Sign in to saveThe dictyate or dictyotene is a prolonged resting phase in oogenesis. It occurs in the stage of meiotic prophase I in ootidogenesis. It starts late in fetal life and is terminated shortly before ovulation by the LH surge. Thus, although the majority of oocytes are produced in female fetuses before birth, these pre-eggs remain arrested in the dictyate stage until puberty commences and the cells complete ootidogenesis.
~2 min read
Encyclopedic overview
3 sectionsContents
- Translation halt
- See also
- References
The dictyate or dictyotene is a prolonged resting phase in oogenesis. It occurs in the stage of meiotic prophase I in ootidogenesis. It starts late in fetal life and is terminated shortly before ovulation by the LH surge. Thus, although the majority of oocytes are produced in female fetuses before birth, these pre-eggs remain arrested in the dictyate stage until puberty commences and the cells complete ootidogenesis.
In both mouse and human, oocyte DNA of older individuals has substantially more double-strand breaks than that of younger individuals.
Excerpted from Wikipedia’s “Dictyate” article, available under the CC BY-SA 4.0 licence.