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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Role of Arabidopsis INDOLE-3-ACETIC ACID CARBOXYL METHYLTRANSFERASE 1 in auxin metabolism.
Eiko Takubo,Makoto Kobayashi,Shoko Hirai,Yuki Aoi,Chennan Ge,Xinhua Dai,Kosuke Fukui,Ken-ichiro Hayashi,Yunde Zhao,Hiroyuki Kasahara +9 more
TL;DR: Investigation of the role of Arabidopsis IAA CARBOXYL METHYLTRANSFERASE 1 (IAMT1) in IAA and PAA metabolism suggests that other proteins, namely the IAMT 1 homologs in the SABATH family of carboxyl methyltransferases, may also regulate IAA levels in Arabidops.
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CRISPR/Cas9 Guided Mutagenesis of Grain Size 3 Confers Increased Rice (Oryza sativa L.) Grain Length by Regulating Cysteine Proteinase Inhibitor and Ubiquitin-Related Proteins.
TL;DR: Wang et al. as mentioned in this paper applied the relative and absolute quantitation (iTRAQ)-based proteomic method to determine the proteome-wide changes in the GS3 mutants compared with wild type (WT).
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Effects of Gibberellin (GA4+7) in Grain Filling, Hormonal Behavior, and Antioxidants in High-Density Maize (Zea mays L.).
TL;DR: The results suggest that a concentration of 60 mg L−1 GA4+7 for shank and silk application may be efficiently used for changing the level of hormones in grains and antioxidant enzymes in ear leaves, which may be useful for enhancing grain-filling rate and delaying leaf senescence, resulting in an increase in maize grain yield.
Journal ArticleDOI
Fine-Mapping of qTGW1.2a, a Quantitative Trait Locus for 1000-Grain Weight in Rice
TL;DR: This study validated and fine-map qTGW1.2a, a quantitative trait locus for grain weight and grain size previously located in a 933.6-kb region on the long arm of rice chromosome 1, to provide a good foundation for the cloning and functional analysis of qT GW1.
Journal ArticleDOI
Small Auxin Up RNAs influence the distribution of indole-3-acetic acid and play a potential role in increasing seed size in Euryale ferox Salisb.
TL;DR: This study indicated that Small Auxin Up RNAs -mediated localization of IAA regulates seed size in Euryale ferox Salisb.
References
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TL;DR: The PROCHECK suite of programs as mentioned in this paper provides a detailed check on the stereochemistry of a protein structure and provides an assessment of the overall quality of the structure as compared with well refined structures of the same resolution.
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CDD: a Conserved Domain Database for the functional annotation of proteins
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TL;DR: NCBI’s Conserved Domain Database (CDD) is a resource for the annotation of protein sequences with the location of conserved domain footprints, and functional sites inferred from these footprints.
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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.