GEPHE SUMMARY Print
Entry Status
Published
GepheID
GP00000413
Main curator
Martin
PHENOTYPIC CHANGE
Trait Category
Trait
Trait State in Taxon A
Oryza rufipogon - wild rice
Trait State in Taxon B
Oryza sativa - Teqing
Ancestral State
Data not curated
Taxonomic Status
Taxon A
Common Name
-
Synonyms
red rice; common wild rice; Oryza rufipogon Griff.
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?
No
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 - Teqing
GENOTYPIC CHANGE
Generic Gene Name
CIN2
Synonyms
WB1; CIN2; GIF1; OsCIN2; OsJ_014165; OJ000126_13.8; Os04g0413500; LOC_Os04g33740
Sequence Similarities
Belongs to the glycosyl hydrolase 32 family.
UniProtKB
Oryza sativa subsp. japonica
GenebankID or UniProtKB
Presumptive Null
Molecular Type
Aberration Type
Molecular Details of the Mutation
unknown
Experimental Evidence
Authors
Wang E; Wang J; Zhu X; Hao W; Wang L; Li Q; Zhang L; He W; et al. ... show more
Abstract
Grain-filling, an important trait that contributes greatly to grain weight, is regulated by quantitative trait loci and is associated with crop domestication syndrome. However, the genes and underlying molecular mechanisms controlling crop grain-filling remain elusive. Here we report the isolation and functional analysis of the rice GIF1 (GRAIN INCOMPLETE FILLING 1) gene that encodes a cell-wall invertase required for carbon partitioning during early grain-filling. The cultivated GIF1 gene shows a restricted expression pattern during grain-filling compared to the wild rice allele, probably a result of accumulated mutations in the gene's regulatory sequence through domestication. Fine mapping with introgression lines revealed that the wild rice GIF1 is responsible for grain weight reduction. Ectopic expression of the cultivated GIF1 gene with the 35S or rice Waxy promoter resulted in smaller grains, whereas overexpression of GIF1 driven by its native promoter increased grain production. These findings, together with the domestication signature that we identified by comparing nucleotide diversity of the GIF1 loci between cultivated and wild rice, strongly suggest that GIF1 is a potential domestication gene and that such a domestication-selected gene can be used for further crop improvement.
Additional References
RELATED GEPHE
Related Genes
No matches found.
Related Haplotypes
No matches found.
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