Gene Details:

• Gene ID:
• Gene Symbol: DkMyb4
• Gene Name: Myb transcription factor4
• Genome:
• Species: Diospyros kaki

Functional Descriptions:

• DkMyb4 Is a Myb Transcription Factor Involved in Proanthocyanidin Biosynthesis in Persimmon Fruit.
• DkMyb4, showed an expression pattern synchronous to that of the PA pathway genes in A- and NA-type fruit flesh. The ectopic expression of DkMyb4 in kiwifruit (Actinidia deliciosa) induced PA biosynthesis but not anthocyanin biosynthesis.
• The suppression of DkMyb4 in persimmon calluses caused a substantial down-regulation of the PA pathway genes and PA biosynthesis. Furthermore, analysis of the DNA-binding ability of DkMyb4 showed that it directly binds to the MYBCORE cis-motif in the promoters of the some PA pathway genes.
• All our results indicate that DkMyb4 acts as a regulator of PA biosynthesis in persimmon and, therefore, suggest that the reduction in the DkMyb4 expression causes the NA-type-specific down-regulation of PA biosynthesis and resultant NA trait.
• These results indicate that a cool ambient temperature may have induced DkMyb4 expression and resultant PA accumulation, but did not directly affect the expression of the AST gene.

Function-related keywords:

• transcription-factor ,  temperature ,  transcription-regulator ,  anthocyanin-biosynthesis ,  proanthocyanidin ,  anthocyanin

Literature:

• DkMyb4 is a Myb transcription factor involved in proanthocyanidin biosynthesis in persimmon fruit.   DOI:  10.1104/pp.109.146985 ;  PMID:  19783643
• Effects of seasonal temperature changes on DkMyb4 expression involved in proanthocyanidin regulation in two genotypes of persimmon (Diospyros kaki Thunb.) fruit.   DOI:  10.1007/s00425-010-1346-z ;  PMID:  21225280

Related News:

Gene Resources:

• NCBI ID: AB503701.1
• UniProt accessions: D0VYJ9

Orthologs:

Sequences:

• CDS Sequence:
• Protein Sequence: