Doubled haploid technology is an important tool for plant breeding. It allows for significant time reduction in the achievement of homozygous breeding lines of value in crop improvement.

"Doubled haploid technology is an important tool for plant breeding. It allows for significant time reduction in the achievement of homozygous breeding lines of value in crop improvement.

Overview of Haploidy.- Pathways to Microspore Embryogenesis.- The Role of Stress in the Induction of Haploid Microspore Embryogenesis.- Microspore Embryo Induction and Development in Higher Plants: Cytological and Ultrastructural Aspects.- Biochemical and Molecular Aspects of Haploid Embryogenesis.- Storage Product Metabolism in Microspore-Derived Cultures of Brassicaceae.- Chromosome Doubling and Recovery of Doubled Haploid Plants.- Utilization of Microspore-Derived Embryos.- Haploids in the Improvement of Solanaceous Species.- Haploids in the Improvement of Crucifers.- Haploids in the Improvement of Poaceae.- Haploids in the Improvement of Woody Species.- Haploids in the Improvement of Miscellaneous Crop Species (Cucurbitaceae, Liliaceae, Asparagaceae, Chenopodiaceae, Araceae and Umbelliferae).- Haploids in the Improvement of Linaceae and Asteraceae.- Challenges and Limitations to the Use of Haploidy in Crop Improvement.