Itoh Yoshio, Higeta Daisuke, Suzuki Akane, Yoshida Hiroyuki, Ozeki Yoshihiro
Department of Biotechnology, Faculty of Technology, Tokyo University of Agriculture and Technology, Koganei, Tokyo, 184-8588 Japan.
Plant Cell Physiol. 2002 May;43(5):578-85. doi: 10.1093/pcp/pcf065.
In the "Rhapsody" cultivar of the carnation, which bears white flowers variegated with red flecks and sectors, a transposable element, dTdic1, belonging to the Ac/Ds superfamily, was found within the dihydroflavonol 4-reductase (DFR) gene. The red flecks and sectors of "Rhapsody" may be attributable to a reversion to DFR activity after the excision of dTdic1. The yellow color of the carnation petals is attributed to the synthesis and accumulation of chalcone 2'-glucoside. In several of the carnation cultivars that bear yellow flowers variegated with white flecks and sectors, both the chalcone isomerase (CHI) and DFR genes are disrupted by dTdic1.
在具有白色花朵且带有红色斑点和色区的香石竹“狂想曲”品种中，在二氢黄酮醇4-还原酶（DFR）基因内发现了一个属于Ac/Ds超家族的转座元件dTdic1。“狂想曲”的红色斑点和色区可能归因于dTdic1切除后DFR活性的恢复。香石竹花瓣的黄色归因于查耳酮2'-葡萄糖苷的合成和积累。在几个具有白色斑点和色区的黄色花朵的香石竹品种中，查耳酮异构酶（CHI）和DFR基因均被dTdic1破坏。
