Anther microspore-based selection process

摘要

A process for producing plant variants, comprises the steps of (A) obtaining microspores in culture from a parent plant, (B) generating plant embryos from microspores in said culture and (C) using said plant embryos to produce a whole plant, wherein said microspores, said plant embryos, or cells deribed from said embryos are exposed to a selection agent that has a selective effect on the viability of microspores, embryos or plant cells, such that certain but not all of the exposed microspores, embryos or cells are viable.