SMART GENETIC PROPAGATION AND SEED PRODUCTION SYSTEMS FOR CROSS-BREEDING CROPS AND HYBRID SEED PRODUCTION, AND VECTORS FOR GENETIC PROPAGATION AND SMART SEED PRODUCTION FOR CROPS

Abstract

The term "GMO" refers to a system for intelligent genetic propagation and seed production for cross-breeding crops and producing hybrid seeds, and its applications. This system includes a GAT carrier system.This carrier includes five functional element expression cathodes: a cathode expressing the genetic element for restoring male fertility in plants, used to restore male fertility in recessive sterile mutants; a cathode expressing the genetic element for incomplete pollen development in plants, used to clean pollen containing GAT and maintain heterozygous or semi-zygous states of GAT maintenance lines; a cathode expressing positive selectivity to chemical herbicides, used for gene transformation and removal of impurities and purification of GAT maintenance lines; a cathode expressing negative selectivity to chemical herbicides, used to clean pollen and seeds escaping from herbicide-sensitive GAT maintenance lines and remove impurities and purify GAT sterile lines; and calxet represents seed screening factors, which are used for mechanical seed classification.This system can be used for crossbreeding and hybrid seed production of sterile materials with recessive genes in plants, thereby obtaining new plant varieties with high quality, high yield, wide adaptability and high resistance, and seeds of specific strains.