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Cloning and expression of UDP-glucose: flavonoid 3-O-glucosyltransferase gene in peach flowers

文献类型: 外文期刊

作者: Wen, X. C. 1 ; Han, J. 1 ; Leng, X. P. 1 ; Ma, R. J. 2 ; Jiang, W. B. 1 ; Fang, J. G. 1 ;

作者机构: 1.Nanjing Agr Univ, Coll Hort, Nanjing, Jiangsu, Peoples R China

2.Jiangsu Acad Agr Sci, Inst Hort, Nanjing, Jiangsu, Peoples R China

关键词: Peach flower;Coloration;Anthocyanin;Cloning;Gene expression

期刊名称:GENETICS AND MOLECULAR RESEARCH ( 影响因子:0.764; 五年影响因子:0.912 )

ISSN: 1676-5680

年卷期: 2014 年 13 卷 4 期

页码:

收录情况: SCI

摘要: To elucidate the connection between flower coloration and the expression of genes associated with anthocyanin biosynthesis, a gene encoding UDP-glucose: flavonoid 3-O-glucosyltransferase (UFGT) was isolated, and the expression of the last four genes in the anthocyanin biosynthetic pathway during peach flower development was determined. The nucleotide sequence of the peach UFGT (GenBank accession No. JX149550) is highly similar to its homologs in other plants. Total anthocyanin content initially increased during peach flower development, and then decreased over time. Expression of the four anthocyanin biosynthesis genes increased until the full-bloom stage. and then decreased during late florescence. Expression of F3H, DFR, and UFGT increased dramatically at the full-bloom stage, coinciding with an increase in anthocyanin concentration. The UFGT gene may not be the only gene of the anthocyanin pathway to be differentially controlled in red peach flower tissues. Further studies are needed to genetically and physiologically characterize these genes enzymes in peach flowers and to gain a better understanding of their functions and relationships with flower coloration.

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