Zygotic Meiosis vs. Sporic Meiosis
What is Zygotic Meiosis?
The meiotic division here occurs in a zygote. In this process the formation of a haploid individual takes place. A zygote is divided which results in haploid organisms, having a haplontic life cycle, unlike the diplontic life cycle in gametic meiosis. In lower plants, zygotic meiosis takes place. It takes place when the zygote is about to germinate and therefore the plant or filament is haploid in nature. The resultant zygote after the process of conjugation is diploid. It undergoes a period of rest and then finally germinates. At the time of germination, meiosis occurs to form four spores.
What is Sporic Meiosis?
This type o division occurs during the process of sporogenesis and results in the formation of haploid spores. Spore divides to form gametophytes which eventually forms gametes. A diploid sporophyte is formed as a result of the fusion of those gametes. It has a diplohaplontic life cycle and is common in plants. Sporic meiosis also occurs in the life cycle of ferns and mosses.