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. 2017 Jun 28;119(3):166–173. doi: 10.1038/hdy.2017.32

Table 2. Segregation patterns of S40 locus for male and female gametes in the BC1F1 populations or F2 population.

Genetic crosses
Progeny phenotype
Expected segregation ratio P-value TRDk-value
Female phenotype Male phenotype S40i/S40i S40i/S40l S40l/S40l Total      
S40i/S40i S40i/S40l 118 122   240 1:1 0.8 km=0.51
S40i/S40l S40i/S40i 96 91   187 1:1 0.71 kf=0.49
S40i/S40l S40,i/S40l 89 184 95 368 1:2:1 0.91  

Abbreviation: TRD, transmission ratio distortion. i and l indicate indica and longistaminata, respectively.

All homozygotes, S40iS40i and S40lS40l, were fertile (both pollen and spikelet), while the heterozygotes S40iS40l demonstrated typical pollen and embryo sac semi-sterility; P-value was obtained using the χ2-test under the hypothesis of Mendelian segregation.