Alternative strategies for development of lines and cultivars (Haploid Induction)
"Line development by haploid inducer" refers to a plant breeding technique where special "haploid inducer lines" are used to generate haploid plants (containing only one set of chromosomes) which can then be doubled to create homozygous "doubled haploid (DH)" lines, significantly accelerating the development of new genetic lines by eliminating the need for multiple generations of self-fertilisation to achieve homozygosity and cross-fertilisation for obtaining heterozygosity
Haploid inducer in Maize
Application in Plant-Breeding and Crop-improvement 1. Faster line development: By creating homozygous lines in a single generation, DH technology drastically reduces the time required to develop new crop varieties. 2. Genetic analysis: Haploid lines are valuable for genetic mapping and studying gene function due to their homozygous nature. 3. Trait selection: By crossing different genetic materials with a haploid inducer, breeders can quickly evaluate a wide range of traits in a homozygous population.
Alternative strategies for development of lines and cultivars (Tissue culture techniques)