The homoeolog-resolved assembly of the 40-Gb decaploid Thinopyrum ponticum genome reveals extensive homoeologous exchange and recombination, segmental allopolyploid organization, and allelic variations for wheat improvement.
These results provide insights into the structural basis of segmental allopolyploid genome stabilization and offer both a framework and extensive resources to study the basic mechanisms of hybrid introgression and recombination in polyploids.