Breeding of Vegetable, Spice and Tuber crops (2+1)

Types of Mutation

Types of Mutations

1. Spontaneous mutations- Mutations occur in nature
2. Induced mutations – Artificially induced by various mutagenic agent




• Macro mutations – Mutations with distinct morphological changes in the phenotype. It is also called oligogenic mutations
• Micro mutations – Mutations with invisible phenotypic changes .It is also called as polygenic mutations. Depending upon the effect on the survival of an individual, induced mutations are of types namely,
1. Lethal (all the individuals carrying such mutations are killed)
2. sub-lethal (mortality is more than 50%)
3. sub-vital (mortality is less than 50%)
4. vital (all mutants survive)