Os03g0203200
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Contents
Annotated Information
Function
The function of the gene was confirmed by complementation test and antisense analysis. D88, thus, represents a new category of genes that regulates cell growth and organ development and consequently plant architecture. The potential relationship between the tiller formation associated genes and D88 is discussed and future identification of the substrate for D88 may lead to the characterization of new pathways regulating plant development [1].
We propose that D14 functions downstream of strigolactone synthesis, as a component of hormone signaling or as an enzyme that participates in the conversion of strigolactones to the bioactive form [2]. The d14 mutant exhibits increased shoot branching with reduced plant height like the previously characterized strigolactone-defi cient and -insensitive mutants d10 and d3 , respectively [2].
The results suggest that the HTD2 gene could negatively regulate tiller bud outgrowth by the strigolactone pathway [3]. which is characterized by a high tillering and dwarf phenotype. Phenotypic analysis of the mutant showed that the mutation did not aVect formation of tiller bud, but promoted the subsequent outgrowth of tiller bud [3].
Expression
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Evolution
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Labs working on this gene
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References
1.Gao Z, Qian Q, Liu X, et al. Dwarf 88, a novel putative esterase gene affecting architecture of rice plant[J]. Plant molecular biology, 2009, 71(3): 265-276. 2.Arite T, Umehara M, Ishikawa S, et al. d14, a strigolactone-insensitive mutant of rice, shows an accelerated outgrowth of tillers[J]. Plant and cell physiology, 2009, 50(8): 1416-1424.
3.Liu W, Wu C, Fu Y, et al. Identification and characterization of HTD2: a novel gene negatively regulating tiller bud outgrowth in rice[J]. Planta, 2009, 230(4): 649-658.
