Species | Oryza sativa (Rice) [ GR_tax:013681 ] | ||||
---|---|---|---|---|---|
Accession | GR:0080027 | ||||
Gene Symbol | HTD1 | ||||
Gene Name | High-Tillering Dwarf1 | ||||
Synonyms (2) |
|
||||
E.C. Numbers (0) | |||||
Pathway Reactions (4) |
|
||||
Chromosome No. | 4 | ||||
Gene Type | CDS (Protein coding) | ||||
Has Phenotype | yes | ||||
Description | The HTD1 gene encodes an ortholog of Arabidopsis MAX3 (At2g44940) and confirmed to be OsCCD7 by complementation test. The htd1 mutant exhibits bushy and dwarf phenotype and found to be independent of the effects of the plant hormone IAA, ABA and GA. High tillering of the htd1 mutants is caused by the release of the axillary buds but not the number of axillary buds. The dwarf phenotype of the htd1 mutant could be rescued by removing axillary buds. The phenotypic rescue of Arabidopsis max3 mutants by wild-type rice HTD1 gene indicates that HDT1 is the ortholog of MAX3 in rice, which suggests the HTD1 may have the same biochemical function as MAX3 in synthesis of the carotenoid-derived signal controlling shoot branching. Expression of HTD1 is induced by auxin. |
Protein |
|
||||||
---|---|---|---|---|---|---|---|
Nucleotide (DNA) |
|
Map Type | Map Set | Name | Map | Position | Ext. Links | |||
---|---|---|---|---|---|---|---|---|
Sequence | Gramene Annotated Nipponbare Sequence 2009 | BNL6.32 | Chr. 4 | 27,382,685-27,385,787bp | View Comparative Map | |||
|
Map Position [ View in Marker DB ] | |||||
---|---|---|---|---|---|
# | Map Set Name | Linkage Group | Start Position | Stop Position | CMap Feature Acc |
1 | Rice japonica MSU6 | Chr. 4 | 27382685 bp | 27385787 bp | grjp2009a-4-GR:0080027 |
Trait | plant height (TO:0000207), tiller number (TO:0000346) |
Plant Structure | axillary bud (PO:0004709), bundle sheath (PO:0006023), root (PO:0009005), stem (PO:0009047), inflorescence (PO:0009049) |
Molecular Function | 9-cis-epoxycarotenoid dioxygenase activity (GO:0045549) |
Biological Process | response to auxin stimulus (GO:0009733), secondary shoot formation (GO:0010223), carotene catabolic process (GO:0016121) |
Environment | auxin regimen (EO:0007074), short day length regimen (EO:0007200), green house study (EO:0007248), laboratory study (EO:0007255), tissue culture growth media (EO:0007266), unknown environment (EO:0007403) |
Chr | Start | Stop | Exp | Num. SNP Positions | |
---|---|---|---|---|---|
chr4 | 27,382,685 | 27,385,787 | ~160K SNPs x 20 accessions (McNally 2... | 1 | Search for SNPs |
chr4 | 27,382,685 | 27,385,787 | '1536 chip' - 1311 SNPs x 395 rice ac... | 0 | |
chr4 | 27,382,685 | 27,385,787 | Huang X, et al, Nat Genetics 2010 Nov... | 3 | Search for SNPs |
chr4 | 27,382,685 | 27,385,787 | RiceDiversity 44K SNP assay, 34 trait... | 3 | Search for SNPs |
chr4 | 27,382,685 | 27,385,787 | RiceDiversity 44K SNP assay, 34 trait... | 0 |