Journal
NATURE PLANTS
Volume 7, Issue 3, Pages 287-+Publisher
NATURE PORTFOLIO
DOI: 10.1038/s41477-021-00858-5
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Funding
- National Science Foundation [IOS-1546837]
- Inari Agricuture, Inc.
- Next-Generation BioGreen 21 Program System and Synthetic Agro-biotech Center from the Rural Development Administration, Republic of Korea [PJ01322602]
- Office of China Postdoctoral Affairs Fellowship
- USDA NIFA [2019-67012-29654]
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By using CRISPR-Cas9 genome editing, weak promoter alleles of CLE genes and a null allele of a partially redundant compensating CLE gene were engineered in maize to increase multiple maize grain-yield-related traits, demonstrating the potential of genomic editing in crop improvement.
Several yield-related traits selected during crop domestication and improvement(1,2) are associated with increases in meristem size(3), which is controlled by CLE peptide signals in the CLAVATA-WUSCHEL pathway(4-13). Here, we engineered quantitative variation for yield-related traits in maize by making weak promoter alleles of CLE genes, and a null allele of a newly identified partially redundant compensating CLE gene, using CRISPR-Cas9 genome editing. These strategies increased multiple maize grain-yield-related traits, supporting the enormous potential for genomic editing in crop enhancement.
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