BSCI 2201L Lecture Notes - Lecture 12: Aedes Albopictus, Oocyte, Hematophagy
6 Apr 2016
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Document Summary
Oogenesis is a highly conserved process among vertebrates that leads to the production of ova. In this lab session we studies the process of oogenesis in mosquitos by dissecting. Anopheles gambiae ovaries at multiple time points after the blood feeding tofollow egg development. Oogenesis is the process of forming an ovum from a primordial germ cell. Germ cells migrate to the ovary during embryogenesis to form oogonia. Each oogonium goes through a series of mitotic events to produce a primary oocyte. Primary oocytes arrest at the prophase of the first meiotic division until sexual maturation, at which the primary oocyte completes meiosis. 1 to form a secondary oocyte and a polar body. Secondary oocytes complete meiosis 2 to produce mature ova and a second polar body. The process of oogenesis is mostly conserved among vertebrates. Insect reproductive tracks are characterized by having the spermatheca which stores male sperm and produces nutrients to preserve the sperm.
