Description:
Donor of Yr78 was the hexaploid variety Cadenza, which was crossed to Kronos and then backcrossed to Kronos three times to recover the tetraploid chromosome number. Yr78 was selected in each generation using the tightly linked molecular marker CDM158 (SNP-position in CS RefSeq v1.0, 6BS: 106,540,703, Dang et al. 2022). Then, the BC3F1 plant was self-pollinated and a homozygous Yr78 line was selected (BC3F2) using the same molecular marker. Grains were increased in the BC3F3 progeny.