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Author Y Sato, A Nishimura, M Ito, M Ashikari, H Y Hirano, M Matsuoka
Title Auxin response factor family in rice.
Abstract:
We isolated 11 rice genes homologous to the genes encoding auxin response factors (ARFs) in Arabidopsis. All of the genes encoded a well-conserved amino acid sequence in the N-terminal region, which is considered to be a DNA-binding domain (DBD). Phylogenetic analysis based on comparison of the DBDs indicated that rice has one or two closely related orthologs corresponding to a given respective ARF gene in Arabidopsis. We also analyzed the amino acid sequences of another conserved domain in the C-terminal conserved domain (CTD), which was shared by almost all the rice ARFs, with the exception of OsETTIN1 and OsETTIN2. These results agreed well with the evolutionary relationship deduced from the DBD comparison. In contrast to many ARFs, OsETTIN1 and OsETTIN2 do not contain the conserved C-terminal domain, but do share another consensus motif that is also found in Arabidopsis ETTIN. All of the above observations indicate that rice has functionally diversified ARF genes whose structures and functions correspond to those of various Arabidopsis ARFs, with one or two rice ARFs corresponding to a given Arabidopsis ARF. Thus, auxin signal transduction mechanisms may be well conserved between monocot and dicot plants.
Journal Genes Genet. Syst.
Country Japan
Volume 76(6)
Pages 373-80
Year 2001
PubMed ID 11922106
PubMed Central ID -
DOI -
URL -
Relation
Gene ARF16 ARF2 ARF6A ARF6B ARF7A ARF7B ARF8 ETT1 ETT2 MP RST1
INSD -
Strain Wild Core Collection -
Induced Mutation Lines(NIG Collection) -
Sterile Seed Strain -
Lethal Embryo
Mutantion Strain 		-
Stages in Each Organ
- Muant Lines (Gene) 		-
Cultivated Varieties(NIG Collection) -
Stages in Each Organ -
/rice/oryzabase