Haploid and Diploid Parthenogenesis: Definition

Haploid and Diploid Parthenogenesis: Definition

Haploid parthenogenesis: When an embryo is formed from a sperm or forms an unfertilized ovum (n), the parthenogenesis is called Haploid parthenogenesis. In haploid parthenogenesis the haploid eggs are not fertilized by the sperms and develop into the haploid individuals.

Example: Hymenoptera (bees and wasps), Rotifers (Asplanchne amphora) etc.

Diploid parthenogenesis: Due to defective meiosis, a diploid female gametophyte (2n) is formed. When this diploid ovum without being fertilized by sperm, gives rise to a new plant and it is called diploid parthenogenesis. In the diploid parthenogenesis, the young individuals develop from the un-fertilized diploid eggs.

Example: Parthenium argentatum.

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