ESTABLISHMENT OF MAINTAINER PLANT LINE AND STERILE LINE AND USE THEREOF

摘要

The present invention provides a maintainer plant line and sterile line and use thereof, A fertility restorer gene, pollen lethal gene, and herbicide resistance gene are simultaneously transferred to a homozygous recessive male sterile plant; the transgenic plant produces two types of seed after inbreeding: a sterile line seed which does not carry a transgene, is not herbicide-resistant, and can be filtered out by means of an herbicide; a fertile seed carrying a transgene, i.e. a maintainer line, which is herbicide-resistant and which can be cross-pollinated with the sterile line and used for propagation of the sterile line. The sterile line fertility created by the present invention is stable and is not subject to environmental influence, and the recessive sterility gene of the plant is suitable for use in the vast majority of plant species.