To introduce useful characteristics such as fragrance into (L.) and to expand the variation, we conducted crosses using as the seed parent and (L.) All.
- The study sequenced the complete chloroplast genomes of seven wasabi and yuriwasabi accessions in Japan to investigate their phylogeny and evolutionary history, finding that these two species do not form a monophyletic group.
- One yuriwasabi accession from Gifu was found to be closely related to E. yunnanense from China, indicating it may be a distinct species, with Japanese Eutrema species diverging from this lineage about 1.3 million years ago.
- The research identified genetic differentiation among wasabi cultivars, leading to the development of genotyping markers based on polymorphic sites between specific cultivars, which will enhance understanding of their evolutionary relationships.