Species | Oryza sativa (Rice) [ GR_tax:013681 ] | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Accession | GR:0060366 | ||||||||||
Gene Symbol | GH2 | ||||||||||
Gene Name | GOLD HULL AND INTERNODE 2 | ||||||||||
Synonyms (9) |
|
||||||||||
E.C. Numbers (1) | 1.1.1.195 | ||||||||||
Pathway Reactions (4) |
|
||||||||||
Chromosome No. | 2 | ||||||||||
Gene Type | CDS (Protein coding) | ||||||||||
Has Phenotype | yes | ||||||||||
Description | The gene encodes a cinnamyl alcohol dehydrogenase (CAD) enzyme (EC:1.1.1.195). It is an ortholog of the CAD gene present at the bm1 (brown midrib 1) locus of maize (GR:0200056). The gene is expressed in the vascular tissue of panicles, hull, leaf midribs, leaf sheath, internodes and young roots. It is a key enzyme that regulates lignin content and plays a role in the lignin biosynthesis. In root tissue, it is expressed in the cortical parenchyma adjacent to the exodermis and in vascular tissue. The associated phenotype shows, brownish green lemma and palea at panicle exsertion and deep golden yellow hull at maturity. Golden internode has more intensified color. (Yellow pigment accumulates in cell wall). Reduction in lignin content. Simlar to gh1. | ||||||||||
Curator Comment | The GH2 protein has multiple enzymatic activities of cinnamyl alcohol dehydrogenase (CAD) and sinapyl alcohol dehydrogenase (SAD). CAD is the primary activity. |
Protein |
|
||||||
---|---|---|---|---|---|---|---|
Nucleotide (DNA) |
|
Map Type | Map Set | Name | Map | Position | Ext. Links | |||
---|---|---|---|---|---|---|---|---|
Sequence | Gramene Annotated Nipponbare Sequence 2009 | BNL6.32 | Chr. 2 | 4,870,139-4,874,079bp | View Comparative Map | |||
|
Map Type | Map Set | Name | Map | Position | Ext. Links | |||
---|---|---|---|---|---|---|---|---|
Genetic | Hokkaido Morphological 2000 | BNL6.32 | 2 | 20-20cM | View Comparative Map | |||
|
||||||||
JRGP RFLP 2000 | BNL6.32 | 2 | 21.2-25.5cM | View Comparative Map | ||||
|
Map Position [ View in Marker DB ] | |||||
---|---|---|---|---|---|
# | Map Set Name | Linkage Group | Start Position | Stop Position | CMap Feature Acc |
1 | Hokkaido Morphological 2000 | 2 | 20 cM | 20 cM | morph-2000-2-2 |
2 | JRGP RFLP 2000 | 2 | 21.2 cM | 25.5 cM | jrgp-2000-2-ip22 |
3 | Rice japonica MSU6 | Chr. 2 | 4870139 bp | 4874079 bp | grjp2009a-2-GR:0060366 |
Trait | shoot axis vascular system (PO:0000039), lemma and palea color (TO:0000264), internode color (TO:0000426), lignin monomer content (TO:0000732), lignin biosynthesis trait (TO:0000733) |
Plant Structure | leaf vascular system (PO:0000036), root vascular system (PO:0003011), root (PO:0009005), seed (PO:0009010), inflorescence (PO:0009049), leaf sheath (PO:0020104), stem internode (PO:0020142) |
Plant Growth and Development Stage | whole plant fruit ripening stage (PO:0007010), whole plant fruit ripening complete stage (PO:0007038), inflorescence emergence stage (PO:0007041), whole plant fruit formation stage (PO:0007042), LP.01 one leaf visible stage (PO:0007094), LP.02 two leaves visible stage (PO:0007098), LP.03 three leaves visible stage (PO:0007106), LP.04 four leaves visible stage (PO:0007115) |
Cereal Plant Growth Stage | 08-dough stage (GRO:0007042), 06-heading stage (GRO:0007044), 09-mature grain stage (GRO:0007045), 07-milk stage (GRO:0007046), 1-4 leaf stage (GRO:0007142) |
Molecular Function | alcohol dehydrogenase activity, zinc-dependent (GO:0004024), zinc ion binding (GO:0008270), electron carrier activity (GO:0009055), heme binding (GO:0020037), cinnamyl-alcohol dehydrogenase activity (GO:0045551) |
Biological Process | lignin biosynthetic process (GO:0009809), electron transport chain (GO:0022900) |
Environment | sodium chloride regimen (EO:0007048), long day length regimen (EO:0007199), Pseudomonas avenae (EO:0007254), tissue culture growth media (EO:0007266), unknown environment (EO:0007403) |
Chr | Start | Stop | Exp | Num. SNP Positions | |
---|---|---|---|---|---|
chr2 | 4,870,139 | 4,874,079 | ~160K SNPs x 20 accessions (McNally 2... | 4 | Search for SNPs |
chr2 | 4,870,139 | 4,874,079 | '1536 chip' - 1311 SNPs x 395 rice ac... | 0 | |
chr2 | 4,870,139 | 4,874,079 | Huang X, et al, Nat Genetics 2010 Nov... | 15 | Search for SNPs |
chr2 | 4,870,139 | 4,874,079 | RiceDiversity 44K SNP assay, 34 trait... | 15 | Search for SNPs |
chr2 | 4,870,139 | 4,874,079 | RiceDiversity 44K SNP assay, 34 trait... | 3 | Search for SNPs |