Using mutation breeding to improve plant genetic characteristics

Description

Mutation breeding involves deliberately exposing plant material to physical or chemical mutagens to induce genetic variations. The essential action is selecting and propagating individuals with desirable traits, such as disease resistance, improved yield, or stress tolerance. This strategy addresses limitations of traditional breeding by rapidly generating novel genetic diversity, enabling the development of improved crop varieties that can better withstand environmental challenges and meet food security needs.

Context

Known as mutation breeding, plant breeders induce inheritable changes in the genetic background of a plant by using irradiation and chemicals, and then select offspring with the characteristics they are looking for.

Implementation

UN Food and Agriculture Organization (FAO) and International Agricultural Exchange Association (IAEA) scientists have used mutation breeding to improve oil quality by inducing changes in the plant's fatty acid composition, and to raise the yields of important oilseed crops. With sesame, the researchers increased the length of the fruiting zone on the stem, the number of capsules or fruits, the uniformity of ripening and the plant's tolerance to important diseases.

Claim

1. The value of plant genetic resources for food and agriculture ultimately lies in their utilization. Promoting plant breeding and improvement is one way of sharing the benefits of these resources.