Many crops are polyploid or have a polyploid ancestry. Recent phylogenetic analyses have found that polyploidy often preceded the domestication of crop plants. One explanation for this observation is that increased genetic diversity following polyploidy may have been important during the strong artificial selection that occurs during domestication. In order to test the connection between domestication and polyploidy, we identified and examined candidate genes associated with the domestication of the diverse crop varieties of Using a combination of approaches, we identified > 3000 candidate genes associated with the domestication of four major Our analyses find evidence for that genetic diversity derived from ancient polyploidy played a key role in the domestication of
- NSF-PAR ID:
- 10343126
- Date Published:
- Journal Name:
- Plant Physiology
- Volume:
- 188
- Issue:
- 4
- ISSN:
- 0032-0889
- Page Range / eLocation ID:
- 1746 to 1756
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation
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Summary Brassica rapa . Like all ‘diploid’ flowering plants,B. rapa has a diploidized paleopolyploid genome and experienced many rounds of whole genome duplication (WGD). We analyzed transcriptome data of more than 100 cultivatedB. rapa accessions.B. rapa crop varieties. Consistent with our expectation, we found that the candidate genes were significantly enriched with genes derived from the Brassiceae mesohexaploidy. We also observed that paleologs were significantly more diverse than non‐paleologs.B. rapa and provide support for its importance in the success of modern agriculture. -
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- Free Publicly Accessible Full Text
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Accepted Manuscript1.0
- Journal Article:
- https://doi.org/10.1093/plphys/kiab554
