GEPHE SUMMARY Print
Entry Status
Published
GepheID
GP00001126
Main curator
Martin
PHENOTYPIC CHANGE
Trait Category
Trait
Trait State in Taxon A
Oryza sativa - var. japonica Nipponbare
Trait State in Taxon B
Oryza sativa - var. indica Kasalath
Ancestral State
Taxon A
Taxonomic Status
Taxon A
Latin Name
Common Name
rice
Synonyms
rice; red rice; Oryza sativa L.
Rank
species
Lineage
Show more ... ytina; Embryophyta; Tracheophyta; Euphyllophyta; Spermatophyta; Magnoliophyta; Mesangiospermae; Liliopsida; Petrosaviidae; commelinids; Poales; Poaceae; BOP clade; Oryzoideae; Oryzeae; Oryzinae; Oryza
NCBI Taxonomy ID
is Taxon A an Infraspecies?
Yes
Taxon A Description
Oryza sativa - var. japonica Nipponbare
Taxon B
Latin Name
Common Name
rice
Synonyms
rice; red rice; Oryza sativa L.
Rank
species
Lineage
Show more ... ytina; Embryophyta; Tracheophyta; Euphyllophyta; Spermatophyta; Magnoliophyta; Mesangiospermae; Liliopsida; Petrosaviidae; commelinids; Poales; Poaceae; BOP clade; Oryzoideae; Oryzeae; Oryzinae; Oryza
NCBI Taxonomy ID
is Taxon B an Infraspecies?
Yes
Taxon B Description
Oryza sativa - var. indica Kasalath
GENOTYPIC CHANGE
Generic Gene Name
TGW6
Synonyms
Os06g0623700; OsJ_22021; OSJNBa0029G06.8; OSNPB_060623700
Sequence Similarities
-
UniProtKB
Oryza sativa subsp. japonica
GenebankID or UniProtKB
Presumptive Null
Yes
Molecular Type
Aberration Type
Deletion Size
1-9 bp
Molecular Details of the Mutation
-1bp at +313 resulting in truncated protein
Experimental Evidence
Authors
Ishimaru K; Hirotsu N; Madoka Y; Murakami N; Hara N; Onodera H; Kashiwagi T; Ujiie K; et al. ... show more
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.
Additional References
RELATED GEPHE
Related Haplotypes
No matches found.
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