What is the Difference Between Apomixis and Polyembryony?

Apomixis and polyembryony are two different forms of plant reproductive techniques. The main differences between them are:

1. Type of reproduction: Apomixis is a type of asexual reproduction where seeds are produced without fertilization, while polyembryony is a type of sexual reproduction that results in the formation of multiple embryos from a single fertilized egg.
2. Formation of embryos: In apomixis, the embryos are formed without the fusion of gametes (or fertilization), and the offspring are genetically identical to the parent. In polyembryony, multiple embryos are formed within a single ovule or seed, and the offspring are not genetically identical to the parent.
3. Fertilization: Fertilization does not occur in apomixis, as seeds are produced without fertilization. In polyembryony, fertilization occurs, leading to the formation of multiple embryos within a single fertilized egg.
4. Significance: Apomixis aids in the quick multiplication of genetically identical offspring and is useful for plant breeding and agriculture. Polyembryony can be used in fruit tree propagation and the growth of homozygous diploids.

In summary, apomixis refers to the production of seeds without fertilization, while polyembryony refers to the formation of multiple embryos from a single fertilized egg. These reproductive techniques have different implications for plant breeding and agriculture.

Comparative Table: Apomixis vs Polyembryony

Here is a table comparing the differences between apomixis and polyembryony:

Apomixis is a type of asexual reproduction where seeds are produced without fertilization, resulting in offspring that are genetically identical to the parent. Polyembryony, on the other hand, is a type of sexual reproduction where multiple embryos form from a single fertilized egg or different cells, leading to genetically identical or diverse offspring.