后转座子
生物
橙色(颜色)
柑橘×冬青
MYB公司
花青素
基因
换位(逻辑)
遗传学
植物
园艺
基因表达
转座因子
基因组
语言学
哲学
作者
Eugenio Butelli,Concetta Licciardello,Yang Zhang,Jianjun Liu,Steve Mackay,Paul Bailey,Giuseppe Reforgiato-Recupero,Cathie Martin
出处
期刊:The Plant Cell
[Oxford University Press]
日期:2012-03-01
卷期号:24 (3): 1242-1255
被引量:428
标识
DOI:10.1105/tpc.111.095232
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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