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Retrotransposons Control Fruit-Specific, Cold-Dependent Accumulation of Anthocyanins in Blood Oranges

文献类型： 外文期刊

作者： Butelli, Eugenio 1 ; Licciardello, Concetta 2 ; Zhang, Yang 1 ; Liu, Jianjun 3 ; Mackay, Steve 1 ; Bailey, Paul 1 ; Re 1 ;

作者机构： 1.John Innes Ctr Plant Sci Res, Norwich NR4 7UH, Norfolk, England

2.Ctr Ric Agrumicoltura & Colture Mediterranee, I-95024 Acireale, Italy

3.Sichuan Acad Agr Sci, Chengdu 610066, Sichuan, Peoples R China

期刊名称：PLANT CELL （ 影响因子：11.277； 五年影响因子：12.061 ）

ISSN： 1040-4651

年卷期： 2012 年 24 卷 3 期

页码：

收录情况： SCI

摘要： Traditionally, Sicilian blood oranges (Citrus sinensis) have been associated with cardiovascular health, and consumption has been shown to prevent obesity in mice fed a high-fat diet. Despite increasing consumer interest in these health-promoting attributes, production of blood oranges remains unreliable due largely to a dependency on cold for full color formation. We show that Sicilian blood orange arose by insertion of a Copia-like retrotransposon adjacent to a gene encoding Ruby, a MYB transcriptional activator of anthocyanin production. The retrotransposon controls Ruby expression, and cold dependency reflects the induction of the retroelement by stress. A blood orange of Chinese origin results from an independent insertion of a similar retrotransposon, and color formation in its fruit is also cold dependent. Our results suggest that transposition and recombination of retroelements are likely important sources of variation in Citrus.

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