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E.g., d1, dwarf-1, GR:0060184, flower*, *tillering stage* Or view help

expand all sections collapse all sections Oryza sativa gene "HTD1" (GR:0080027)
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.
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