Journal ArticleDOI
Loss of function of the IAA-glucose hydrolase gene TGW6 enhances rice grain weight and increases yield
Ken Ishimaru,Naoki Hirotsu,Yuka Madoka,Naomi Murakami,Nao Hara,Haruko Onodera,Takayuki Kashiwagi,Kazuhiro Ujiie,Bun-ichi Shimizu,Atsuko Onishi,Hisashi Miyagawa,Etsuko Katoh +11 more
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TLDR
The cloning and functional analysis of THOUSAND-GRAIN WEIGHT 6 (TGW6), a gene from the Indian landrace rice Kasalath, suggest that TGW6 may be useful for further improvements in yield characteristics in most cultivars.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.read more
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Genetic control of grain appearance quality in rice.
TL;DR: In this paper , a detailed description of the key genes involved in the formation of grain appearance, and the major environmental factors affecting chalkiness are discussed, together with the integration of current knowledge on valuable genes to enable accurate breeding strategies for generation of rice grains with superior appearance quality.
Journal ArticleDOI
UDP-glucosyltransferase UGT84B1 regulates the levels of indole-3-acetic acid and phenylacetic acid in Arabidopsis
Yuki Aoi,Hayao Hira,Yuya Hayakawa,Hongquan Liu,Kosuke Fukui,Xinhua Dai,Keita Tanaka,Ken-ichiro Hayashi,Yunde Zhao,Hiroyuki Kasahara +9 more
TL;DR: The results indicate that UGT84B1 plays an important role in IAA and PAA homeostasis in Arabidopsis and can also catalyze the conversion of PAA to PAA-glucoside (PAA-Glc), with a higher catalytic activity in vitro.
Journal ArticleDOI
Exploration of rice yield potential: Decoding agronomic and physiological traits
TL;DR: This review outlines the current understanding of the three morphological yield-determining components and summarizes major progress in decoding physiological traits such as nutrient use efficiency and photosynthetic efficiency.
Patent
Rice thousand kernel weight gene tgw6 mutant as well as preparation method and application thereof
TL;DR: In this paper, a rice thousand kernel weight gene tgw6 mutant was introduced and a site-directed editing of a TGW6 gene for regulating and controlling rice 1000 kernel weight by virtue of CRISPR/Cas9 technology.
Journal ArticleDOI
Rice Big Grain 1 promotes cell division to enhance organ development, stress tolerance and grain yield.
Shuen-Fang Lo,Ming-Lung Cheng,Ming-Lung Cheng,Yue-Ie C. Hsing,Chen Yi-Shih,Kuo-Wei Lee,Ya-Fang Hong,Yu Hsiao,An-Shan Hsiao,Pei‐Jing Chen,Pei‐Jing Chen,Lai‐In Wong,Lai‐In Wong,Nan‐Chen Chen,Christophe Reuzeau,Tuan-Hua David Ho,Su-May Yu +16 more
TL;DR: It is discovered that a newly discovered gene Rice Big Grain 1 (RBG1) regulates two distinct and important traits in rice, namely grain yield and stress tolerance, via its effects on cell division, auxin and stress protein induction.
References
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Validation of the general purpose Tripos 5.2 force field
TL;DR: In this paper, a molecular mechanics force field implemented in the Sybyl program is described along with a statistical evaluation of its efficiency on a variety of compounds by analysis of internal coordinates and thermodynamic barriers.
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Seed Banks and Molecular Maps: Unlocking Genetic Potential from the Wild
TL;DR: The tools of genome research may finally unleash the genetic potential of the authors' wild and cultivated germplasm resources for the benefit of society.