Utilization of Plant Male Sterility Produced by Two Different Genes in an Allelic Relationship to One Another
Li Xinqi1,2 Zhao Changping2*1 China National Hybrid Rice Research & Development Center, Changsha, 410125; 2 Beijing Hybrid Wheat Research & Development Center, Beijing, 100089
A novel approach to utilize crop heterosis is introduced in this paper. By two different genes in an allelic relationship to one another, a type of plant male sterility can be produced. One could be a male sterile gene, another could be the activation gene of the male sterile gene. The alleles can be obtained by means of two different recombinases to generate different deletions in a transgenic construct in a plant. All varieties can restore such male sterility since the F1s of combinations between the male sterile plant and inbred lines only have one of the two genes. The adoption of photoperiod sensitive (or thermo-sensitive) genic male sterility genes will be an excellent solution to the multiplication problem of the male sterile lines.
【CateGory Index】： S336