QTL Accession ID | AQGK001 | ||||
---|---|---|---|---|---|
Species | Oryza sativa (Rice) [ GR_tax:013681 ] | ||||
Trait Symbol | GRYLD | ||||
Trait Name | grain yield | ||||
Published Symbol | Gn1a | ||||
Trait Synonym(s) |
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Trait Category | Yield | ||||
Chromosome | 1 | ||||
Comments | The QTL that increases grain productivity in rice, Gn1a, is a gene for cytokinin oxidase/dehydrogenase (OsCKX2), an enzyme that degrades the phytohormone cytokinin. Reduced expression of OsCKX2 causes cytokinin accumulation in inflorescence meristems and increases the number of reproductive organs, resulting in enhanced grain yield. The grain yield increasing allele is from Habataki. This QTL has been originally identified from 96 backcross inbred lines (BILs) derived from the cross between Habataki and Koshihikari, but its position has been displayed on the JRGP Nipponbare/Kasalath RFLP map. |
Map Type | Map Set | Name | Map | Position | Ext. Links | |||
---|---|---|---|---|---|---|---|---|
Sequence | Gramene Annotated Nipponbare Sequence 2009 | BNL6.32 | Chr. 1 | 5,109,092-5,513,259 bp | View Comparative Map | |||
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Map Type | Map Set | Name | Map | Position | Ext. Links | |||
---|---|---|---|---|---|---|---|---|
QTL | JRGP Nip/Kas F2 QTL 2000 | BNL6.32 | 1 | 26.8-28.4 cM | View Comparative Map | |||
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Name | Chromosome | Start | Stop |
---|---|---|---|
AQGK001 | 1 | 26.8 | 28.4 |
Direction | Name | Type | Species | Assoc. Type |
---|---|---|---|---|
To | ckx2 | Gene | Oryza sativa | ISS |
To | R3192 | RFLP | Oryza sativa | qtl_marker |
To | L612 | RFLP | Oryza sativa | qtl_marker |
To | C12072S | RFLP | Oryza sativa | qtl_marker |
To | G359 | RFLP | Oryza sativa | qtl_marker |
To | C668 | RFLP | Oryza sativa | qtl_marker |
To | C101 | RFLP | Oryza sativa | qtl_marker |
To | S1651 | RFLP | Oryza sativa | qtl_marker |
To | C885 | RFLP | Oryza sativa | qtl_marker |
To | S4325S | RFLP | Oryza sativa | qtl_marker |
To | S10057 | RFLP | Oryza sativa | qtl_marker |
Species | Accession | Name | Evidence |
---|---|---|---|
Oryza sativa | GR:0020051 | Cytokinin oxidase/dehydrogenase 2 | Ashikari-M et al., 2005 (IAGP) |
Term Type | Term | Evidence |
---|---|---|
Trait Ontology | (TO:0000396) | Ashikari-M et al., 2005 (IAGP) |
Plant Structure | (PO:0009001) | Gramene curators, 2007 (IC) |
Plant Growth and Development Stage | (PO:0007038) | Gramene curators, 2007 (IC) |
Growth Stage | (GRO:0007045) | Gramene curators, 2007 (IC) |
Environment | (EO:0007403) | Gramene curators, 2007 (IC) |
Species Ontology | (GR_tax:013681) | Ashikari-M et al., 2005 (SM) |
Chr | Start | Stop | Exp | Num. SNP Positions | |
---|---|---|---|---|---|
chr1 | 5,109,092 | 5,513,259 | ~160K SNPs x 20 accessions (McNally 2... | 225 | Search for SNPs |
chr1 | 5,109,092 | 5,513,259 | '1536 chip' - 1311 SNPs x 395 rice ac... | 3 | Search for SNPs |
chr1 | 5,109,092 | 5,513,259 | Huang X, et al, Nat Genetics 2010 Nov... | 805 | Search for SNPs |
chr1 | 5,109,092 | 5,513,259 | RiceDiversity 44K SNP assay, 34 trait... | 805 | Search for SNPs |
chr1 | 5,109,092 | 5,513,259 | RiceDiversity 44K SNP assay, 34 trait... | 51 | Search for SNPs |