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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Cloning of wheat keto-acyl thiolase 2B reveals a role of jasmonic acid in grain weight determination.
Yun Chen,Yan Yan,Tian-Tian Wu,Guo-Liang Zhang,Huanran Yin,Wei Chen,Shuangshuang Wang,Fang Chang,Jin-Ying Gou +8 more
TL;DR: A role of the JA synthetic gene KAT-2B in controlling GW and its potential application value for wheat improvement is demonstrated.
Journal ArticleDOI
The additive effects of GS3 and qGL3 on rice grain length regulation revealed by genetic and transcriptome comparisons
TL;DR: It is found that GS3 and qGL3 had additive effects on rice grain length regulation, and both loci might be involved in brassinosteroid signaling.
Journal ArticleDOI
MicroRNAs meet with quantitative trait loci: Small powerful players in regulating quantitative yield traits in rice
TL;DR: This review focuses on the functions of miRNAs in controlling yield‐related quantitative traits in rice, including panicle grain number, grain weight/size, panicle length and branching, tiller number per plant, spikelet number, seed setting rate, and leaf inclination, and discusses how to modulate the expression of these mi RNAs using modern molecular biology tools to promote grain yield.
Journal ArticleDOI
Detecting CSSLs and yield QTLs with additive, epistatic and QTL×environment interaction effects from Oryza sativa × O. nivara IRGC81832 cross
Divya Balakrishnan,Malathi Surapaneni,Venkateswara Rao Yadavalli,Krishnam Raju Addanki,Sukumar Mesapogu,Kavitha Beerelli,Sarla Neelamraju +6 more
TL;DR: The significantly improved lines and the stable QTLs identified in this study are valuable resource for gene discovery and yield improvement.
Journal ArticleDOI
OsGASR9 positively regulates grain size and yield in rice (Oryza sativa).
Xiangbo Li,Shuangyue Shi,Quandan Tao,Yajun Tao,Jun Miao,Xiuron Peng,Chang Li,Zefeng Yang,Yong Zhou,Guohua Liang +9 more
TL;DR: It is concluded that OsGASR9 is a positive regulator of responses to GA in rice and may regulate plant height, grain size and yield through the GA pathway and could have an application value in breeding.
References
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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.