Figure 3.

The genetic model of putative heterozygosity at the causal locus for the BSL trait. (A) The female gametes develop normally and the male gametes carrying the mutated gene for the branched spikelets aborted, resulting in a 1:1 segregating ratio of the BSL plants and the NSL plants in the offspring of selfed BSL plants. (B) The F₁ progenies with the branched and the normal spike segregated by a 1:1 ratio when the BSL plants served as a maternal parent, and (C), all the offspring showed normal spike trait when the BSL plant served as paternal parent. The red bar represents the gene for the branched spikelets. The dotted ellipse represents aborted male gamete for the BSL plants.