Embryonic Diapause

Öz

Embryonic diapause or temporary cessation of embryonic development is a common phenomenon in the plant and animal species. Embryonic diapause is a temporary cessation of the development of embryogenesis in the blastocyst stage and is a reproductive strategy characterized by delayed implantation in the uterus. It is defined in over 130 species of mammals. It occurs obligate or facultative in cases where the development of the embryo from the blastocyst stage to later stages is not appropriate (eg, during environmental conditions or lactation). The embryonic diapause begins with the blastocyst entering the metabolic and proliferative state of silence so reduction or interruption of mitosis in the embryo. When exit from the diapause, reactivation, and blastocyst returns to active metabolism, mitotic activity restarts and with cell proliferation, the implantation process begins in the uterus. Embryonic diapause is a protective phenomenon, it represents an important developmental advantage for species survival and should be evolutionarily maintained.

Anahtar Kelimeler

• Blastocyst development
• Diapause
• Embryo
• Mitotic activity

Kaynakça

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