Which is an example of mutation breeding?

The process of mutation breeding involves inducing mutations artificially through use of chemicals or radiations (like gamma radiations) and selecting plants that have the desirable character as a source in breeding. In mung bean, resistance to yellow mosaic virus and powdery mildew were induced by mutations.

What are the types of mutation in plant breeding?

Back mutation: A mutation that causes a mutant gene to revert to its original wild-type base sequence. Lethal mutation: A mutation that disrupts a critical gene, thus killing the developing organism. Frame-shift mutation: A mutation involving a change in the reading frame.

What is the role of mutation in plant breeding?

Mutation breeding and plant mutagenesis play a significant role in increasing the genetic variability for desired traits in various food crops [1,2,3]. Induced mutagenesis is one of the most efficient tools used for the identification of key regulatory genes and molecular mechanisms.

What causes mutations in flowers?

Cause. Most mutations are random and are a result of a change within the cells of the plant, but mutations can sometimes be triggered by cold weather, temperature fluctuations or insect damage.

What are the uses of mutation?

Mutation is the ultimate source of all genetic variation, providing the raw material on which evolutionary forces such as natural selection can act. Mutation can result in many different types of change in sequences.

What are the three main causes of mutations?

Mutations can result from DNA copying mistakes made during cell division, exposure to ionizing radiation, exposure to chemicals called mutagens, or infection by viruses.

How many chromosomes are there in Gladiolus?

The basic chromosome number in the genus is 30 but the number present in the typical modern gladiolus is 60. Many features and characteristics of gladiolus show a gradual variation from one extreme to another. It is primarily due to its polyploidy nature. Breeding work in gladiolus has been initiated with following objectives. Objectives:

Where can I find breeding work in Gladiolus?

Breeding work in gladiolus has been carried out at IARI, New Delhi; IIHR, Bangalore; NBRI, Lucknow, IHBT, Palampur and Horticulture Experiment and Training Centre, Chaubattia. Gladiolus is hermaphrodite in nature, so new cultivars are evolved through hybridization and mutation. It belongs to family Iridaceae.

Is gladiolus a hermaphrodite?

Gladiolus is hermaphrodite in nature, so new cultivars are evolved through hybridization and mutation. It belongs to family Iridaceae. The basic chromosome number in the genus is 30 but the number present in the typical modern gladiolus is 60. Many features and characteristics of gladiolus show a gradual variation from one extreme to another.

Can Gladiolus be grown commercially in India?

Gladiolus is one of the most important bulbous flowering crops grown commercially for cut flower trade in India. Breeding work in gladiolus has been carried out at IARI, New Delhi; IIHR, Bangalore; NBRI, Lucknow, IHBT, Palampur and Horticulture Experiment and Training Centre, Chaubattia.