Fig. 2
From: An asymmetric allelic interaction drives allele transmission bias in interspecific rice hybrids
The S1TPRt rescues the gametes carrying S1-s in hybrids. a Pollen and spikelet fertilities of the F1 plants derived from the cross between the hemizygous S1TPRt (TPRt, ss/T–) and NIL-g (gg/– –), and various genotypes of the F2 segregants. Error bars indicate S.D. NA, not available. b A proposed model for the segregation behavior of the endogenous S1 alleles and TPRt in the F2 plants derived from TPRt × NIL-g. The F1 male and female gametes containing S1-g and/or T are considered fertile, and those with S1-s (ss/– –) but lacking T are generally sterile. Thus, the expected segregation ratios for gg:gs:ss and TT:T–:– – are 4:4:1. The color codes are consistent with the genotype of the individuals in the F2 population. Black represents homozygous TPRt; gray represents hemizygous TPRt; white represents lacking TPRt; green represents homozygous S1-s; red represents heterozygous S1; blue represents free homozygous S1-g. c The segregation rates of the S1 alleles and the transgene (T) in the analyzed F2 population fit the expected ratio. Source data of (a, c) are provided as a Source Data file
