Polyploidy before and after domestication of crop species

Takashi Akagi, Katharina Jung, Kanae Masuda, Kentaro K. Shimizu

Research output: Contribution to journalReview articlepeer-review

4 Citations (Scopus)


Recent advances in the genomics of polyploid species answer some of the long-standing questions about the role of polyploidy in crop species. Here, we summarize the current literature to reexamine scenarios in which polyploidy played a role both before and after domestication. The prevalence of polyploidy can help to explain environmental robustness in agroecosystems. This review also clarifies the molecular basis of some agriculturally advantageous traits of polyploid crops, including yield increments in polyploid cotton via subfunctionalization, modification of a separated sexuality to selfing in polyploid persimmon via neofunctionalization, and transition to a selfing system via nonfunctionalization combined with epistatic interaction between duplicated S-loci. The rapid progress in genomics and genetics is discussed along with how this will facilitate functional studies of understudied polyploid crop species.

Original languageEnglish
Article number102255
JournalCurrent Opinion in Plant Biology
Publication statusPublished - Oct 2022


  • Crops
  • Domestication
  • Polyploidy
  • Self-compatibility

ASJC Scopus subject areas

  • Plant Science


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