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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2Gs and plant architecture: breaking grain yield ceiling through breeding approaches for next wave of revolution in rice (Oryza sativa L.).
Gurjeet Singh,Navdeep Kaur,Renu Khanna,Rupinder Kaur,Santosh S Gudi,Rajvir Kaur,Navjot Sidhu,Yogesh Vikal,G. S. Mangat +8 more
TL;DR: In this paper , a review of the genetic nature of 2Gs traits and use this knowledge to break the yield ceiling by using different breeding and biotechnological tools, which will sustain the world's food requirements.
Journal ArticleDOI
QTL identification and epistatic effect analysis of seed size- and weight-related traits in Zea mays L
TL;DR: Meta-QTL analysis revealed 8 mQTL, with 6 located in the abovementioned regions, suggesting high consistency of QTL localization across populations, and provides a foundation for further QTL fine mapping of the 8 m QTL and for the molecular-assisted breeding of maize with large seed size and weight.
Journal ArticleDOI
Dynamic formation and transcriptional regulation mediated by phytohormones during chalkiness formation in rice.
Qin Xie,Jinke Xu,Ke Huang,Yi Su,Jianhua Tong,Zhigang Huang,Chao Huang,Manlin Wei,Wanhuang Lin,Langtao Xiao +9 more
TL;DR: Zhang et al. as mentioned in this paper investigated the involvement of phytohormones in the regulation of rice chalkiness formation, through the interaction of multiple transcription factors and their downstream regulators.
Journal ArticleDOI
Identification of QTLs for grain size and characterization of the beneficial alleles of grain size genes in large grain rice variety BL129
Xuan Gao,Xuan Gao,Xu-dong Zhu,Na Fang,Na Fang,Penggen Duan,Ying-bao Wu,Yuehua Luo,Yun-hai Li +8 more
TL;DR: Results reveal that the rare gw2 allele from BL129 increases grain width, thickness and weight of the elite indica variety Huazhan, which is used as a parental line in hybrid rice breeding, which will help breeders to carry out molecular design breeding on rice grain size and shape.
Patent
Rice thousand kernel weight gene TGW6 guided RNA target sequence and application thereof
TL;DR: In this article, a rice thousand kernel weight gene TGW6 guided RNA target sequence was used for the editing of the rice genome, which has the advantages of being convenient, efficient and the like.
References
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Validation of the general purpose Tripos 5.2 force field
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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.