Abstract
The full-length cDNA sequence of F3′5′H gene from the Brunfelsia acuminata was obtained by RT-PCR and RACE, whose GenBank accession number is JQ678765. The sequence contains a 1521 bp open reading frame, 120 bp 5′UTR and 61 bp 3′UTR, encoding a total of 506 amino acids. The molecular mass of the predicted protein is 56.47 kDa with an estimated pI of 8.78, respectively. Sequence alignment showed that the amino acid sequence of F3′5′H was 91%, 87% and 84% with that of Petunia × hybrida, Nierembergia sp., Solanum tuberosum, respectively. Real-time quantitative PCR analysis showed that the expression of F3′5′H gene was different in petals of different days, which was the highest expression level on day 0 and significantly higher than other days. The results indicated that F3′5′H might play key role in flower color regulation and provide a theoretical reference for blue flower molecular breeding.
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