Barley and Wheat Doubled Haploids in Breeding

The application of doubled haploids is a routine in barley and wheat breeding today. While in barley anther and isolated microspore culture are efficient technologies in wheat wide crosses with maize and subsequent phytohormone treatment and embryo rescue are better established due to genotype dependency of wheat in androgenic technologies. Although a quite significant number of DH lines can be produced in breeding programmes there are still some limiting factors which are related to technical and genetic factors. The actual status of DH lines in barley and wheat breeding and some of the limiting factors are listed and described below. Furthermore some aspects of R&D programmes to circumvent those limitations are described, followed by an outlook.