Identification of Putative \u3cem\u3eAt\u3c/em\u3eTT2 R2R3-MYB Transcription Factor Orthologues in Tanniferous Tissues of \u3cem\u3eL. Corniculatus\u3c/em\u3e Var. \u3cem\u3eJaponicus\u3c/em\u3e Cv \u3cem\u3eGifu\u3c/em\u3e

Abstract

R2R3-MYB plant transcription factors are sequence–specific DNA-binding proteins, which regulate the expression of specific gene(s) following the R2R3 DNA-binding domain interacting with the corresponding promoter sequence(s). The biosynthetic pathway leading to the production of anthocyanins has been demonstrated to be under MYB transcriptional regulatory control (Cone et al., 1986), while the accumulation of proanthocyanidins (PAs) in Arabidopsis seed coats is determined by the R2R3-MYB AtTT2 (Nesi et al., 2001). Using an informatics approach, partial sequences of putative AtTT2 orthologues have been identified and cloned from the forage legume Lotus corniculatus var. japonicus cv Gifu