Phylogenetic origin of the Y haplome present in allopolyploid Triticeae species is unclear. Here, the authors report the genome assembly of allohexaploid Elymus nutans, reveal the all likely combinations of St, Y, and H haplomes during the allopolyploid origins, and identify gene responsible for UV-B radiation adaptation.
- Yi Xiong
- Shuai Yuan
- Xiao Ma
