GEPHE SUMMARY Print
Gephebase Gene
Rc
Entry Status
Published
GepheID
GP00000959
Main curator
Martin
PHENOTYPIC CHANGE
Trait Category
Trait State in Taxon A
Oryza rufipogon
Trait State in Taxon B
Oryza sativa
Ancestral State
Taxon A
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?
No
GENOTYPIC CHANGE
Generic Gene Name
Rc
Synonyms
-
String
-
Sequence Similarities
-
GO - Biological Process
-
GO - Cellular Component
-
UniProtKB
Oryza sativa subsp. japonica
GenebankID or UniProtKB
Presumptive Null
Yes
Molecular Type
Aberration Type
Deletion Size
10-99 bp
Molecular Details of the Mutation
14bp deletion
Experimental Evidence
Authors
Sweeney MT; Thomson MJ; Cho YG; Park YJ; Williamson SH; Bustamante CD; McCouch SR
Abstract
Here we report that the change from the red seeds of wild rice to the white seeds of cultivated rice (Oryza sativa) resulted from the strong selective sweep of a single mutation, a frame-shift deletion within the Rc gene that is found in 97.9% of white rice varieties today. A second mutation, also within Rc, is present in less than 3% of white accessions surveyed. Haplotype analysis revealed that the predominant mutation originated in the japonica subspecies and crossed both geographic and sterility barriers to move into the indica subspecies. A little less than one Mb of japonica DNA hitchhiked with the rc allele into most indica varieties, suggesting that other linked domestication alleles may have been transferred from japonica to indica along with white pericarp color. Our finding provides evidence of active cultural exchange among ancient farmers over the course of rice domestication coupled with very strong, positive selection for a single white allele in both subspecies of O. sativa.
Additional References
RELATED GEPHE
Related Genes
Related Haplotypes
No matches found.
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