Species | Oryza sativa (Rice) [ GR_tax:013681 ] | ||||
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Accession | GR:0101253 | ||||
Gene Symbol | Log | ||||
Gene Name | Lonely Guy | ||||
Synonyms (3) |
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E.C. Numbers (0) | |||||
Pathway Reactions (3) |
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Chromosome No. | 1 | ||||
Gene Type | CDS (Protein coding) | ||||
Has Phenotype | yes | ||||
Description | It encodes for the enzyme cytokinin nucleoside 5'-monophosphate phosphoribohydrolase that converts the cytokinin nucleotide such as iPRMP and tZRMP to the free-base form and ribose 5'-monophosphate. The active cytokinin species are free-base forms isopentenyladenosine (iP) and trans-Zeatin (tZ, cytokinin). The gene in involved in cytokinin biosynthesis and meristem maintenance in the shoot apical meristem (SAM). gene is expressed in SAM, inflorescence and flower meristems. The mutant plants show reduced number of active meristematic cells in SAM, arrest of inflorescence lateral meristem leading to few inflorescence brances and small size of panicle, , floral meristem flattens and its differentiation is arrested just before the pistil primordium formation. The flowers lack pistil (the female part), therefore the gene was named "lonely guy". | ||||
Curator Comment | Function of the protein as Lysine Decarboxylase annotated by various rice genome projects is wrong. The authors Kurakawa et al. (2007) confirmed this by testing for enzymatic activity. |
Protein |
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Nucleotide (DNA) |
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Map Type | Map Set | Name | Map | Position | Ext. Links | |||
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Sequence | Gramene Annotated Nipponbare Sequence 2009 | BNL6.32 | Chr. 1 | 22,953,864-22,958,181bp | View Comparative Map | |||
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Map Position [ View in Marker DB ] | |||||
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# | Map Set Name | Linkage Group | Start Position | Stop Position | CMap Feature Acc |
1 | Rice japonica MSU6 | Chr. 1 | 22953864 bp | 22958181 bp | grjp2009a-1-GR:0101253 |
Trait | inflorescence branching (TO:0000050), panicle type (TO:0000089), pistil number (TO:0002659), cytokinin content (TO:0002660) |
Plant Structure | flower meristem (PO:0000229), inflorescence meristem (PO:0000230), inflorescence branch meristem (PO:0009105) |
Cereal Plant Growth Stage | panicle development (GRO:0007157), spikelet stage SP6 (GRO:0007206), spikelet stage SP7 (GRO:0007208) |
Cellular Component | plastid (GO:0009536) |
Biological Process | cytokinin biosynthetic process (GO:0009691), maintenance of meristem identity (GO:0010074), maintenance of floral meristem identity (GO:0010076), maintenance of inflorescence meristem identity (GO:0010077), regulation of vegetative meristem growth (GO:0010083), specification of organ number (GO:0048832) |
Environment | sodium chloride regimen (EO:0007048), Magnaporthe grisea (EO:0007226), unknown environment (EO:0007403), drought environment (EO:0007404) |
Chr | Start | Stop | Exp | Num. SNP Positions | |
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chr1 | 22,953,864 | 22,958,181 | ~160K SNPs x 20 accessions (McNally 2... | 11 | Search for SNPs |
chr1 | 22,953,864 | 22,958,181 | '1536 chip' - 1311 SNPs x 395 rice ac... | 0 | |
chr1 | 22,953,864 | 22,958,181 | Huang X, et al, Nat Genetics 2010 Nov... | 0 | |
chr1 | 22,953,864 | 22,958,181 | RiceDiversity 44K SNP assay, 34 trait... | 0 | |
chr1 | 22,953,864 | 22,958,181 | RiceDiversity 44K SNP assay, 34 trait... | 1 | Search for SNPs |