Loss of function of the IAA-glucose hydrolase gene TGW6 enhances rice grain weight and increases yield
Article
Article Title | Loss of function of the IAA-glucose hydrolase gene TGW6 enhances rice grain weight and increases yield |
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ERA Journal ID | 16629 |
Article Category | Article |
Authors | Ishimaru, Ken (Author), Hirotsu, Naoki (Author), Madoka, Yuka (Author), Murakami, Naomi (Author), Hara, Nao (Author), Onodera, Haruko (Author), Kashiwagi, Takayuki (Author), Ujiie, Kazuhiro (Author), Shimizu, Bun-ichi (Author), Onishi, Atsuko (Author), Miyagawa, Hisashi (Author) and Katoh, Etsuko (Author) |
Journal Title | Nature Genetics |
Journal Citation | 45 (6), pp. 707-711 |
Number of Pages | 5 |
Year | 2013 |
Place of Publication | United States |
ISSN | 1061-4036 |
1546-1718 | |
Digital Object Identifier (DOI) | https://doi.org/10.1038/ng.2612 |
Web Address (URL) | http://www.nature.com/ng/journal/v45/n6/full/ng.2612.html |
Abstract | Increases in the yield of rice, a staple crop for more than half of the global population, are imperative to support rapid population growth. Grain weight is a major determining factor of yield. Here, we report the cloning and functional analysis of THOUSAND-GRAIN WEIGHT 6 (TGW6), a gene from the Indian landrace rice Kasalath. TGW6 encodes a novel protein with indole-3-acetic acid (IAA)-glucose hydrolase activity. In sink organs, the Nipponbare tgw6 allele affects the timing of the transition from the syncytial to the cellular phase by controlling IAA supply and limiting cell number and grain length. Most notably, loss of function of the Kasalath allele enhances grain weight through pleiotropic effects on source organs and leads to significant yield increases. Our findings suggest that TGW6 may be useful for further improvements in yield characteristics in most cultivars. |
Keywords | plant breeding |
ANZSRC Field of Research 2020 | 310506. Gene mapping |
310803. Plant cell and molecular biology | |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | National Institute of Agrobiological Sciences, Japan |
Toyo University, Japan | |
Kyoto University, Japan | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q35zx/loss-of-function-of-the-iaa-glucose-hydrolase-gene-tgw6-enhances-rice-grain-weight-and-increases-yield
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