Question: Type of apomixis in mango is……….
Options:
Non-recurrent
Recurrent
Vegetative
Non-vegetative
📌 Other Options Explanations:
-Non-recurrent apomixis: The embryo sac develops from a cell of the nucellus and is haploid.
-Recurrent apomixis: The embryo sac develops from the megaspore mother cell but does not undergo meiosis.
-Non-vegetative apomixis: Does not exist as a specific type of apomixis.
🔑Key Points:
-Apomixis: ''apo'' = without & ''mixis'' = mixing. It is a form of asexual reproduction that results in the formation of seeds without fertilization (i.e without the fusion of male and female gametes). It is seen in plants of species Asteraceae & grasses.
-It is a form of asexual reproduction that mimics sexual reproduction.
-There are two kinds of apomixis in flowering plants: Agamospery and vegetative propagation
• Agamospermy is further divided into three types:
-Adventive embryonic
-Parthenogenesis
-Apospory & Apogamy
• Adventive embryonic:
-Formation of embryo directly from the diploid sporophytic cells (nucellus or integuments)Â of ovule (other than zygote) is called adventive embryony
-It is seen in CitrusÂ
Parthenogenesis:Â Formation of embryo from unfertilized egg
-Apospory & Apogamy:Â Formation of embryo from any other cell of embryosac (other than the egg) without fertilization