2012 Fiscal Year Final Research Report
Study on the mechanism of anthocyanin biosynthesis and flower color breeding of Dutch iris
| Project/Area Number |
22580007
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Breeding science
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| Research Institution | University of Miyazaki |
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Principal Investigator |
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| Research Collaborator |
NINOMIYA Yumiko 宮崎大学, 大学院・農学研究科, 修士課程院生
HARAZAKI Yuusuke 宮崎大学, 大学院・農学研究科, 修士課程院生
HIGASHI Saki 宮崎大学, 大学院・農学研究科, 修士課程院生
NOZAKI Tomonori 宮崎大学, 大学院・農学研究科, 修士課程院生
AKAIWA Yumi 宮崎大学, 農学部, 研究生
MIZUNO Takayuki 東京農工大学, 連合農学研究科, 博士課程院生
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| Project Period (FY) |
2010 – 2012
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| Keywords | ダッチアイリス / 5GT 遺伝子 / アントシアニン / フラボン / アントシアニン生合成遺伝子 / CHS 遺伝子 / ペチュニア形質転換体 / 外花被の白色化 |
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| Research Abstract |
In this study, to promote flower color breeding of the Iris garden species, anthocyanins, flavones and anthocyanin biosynthetic genes of Dutch iris (Iris x hollandica) cultivars were characterized. Malonate anthocyanins of delphinidin3pCRG5G, petunidin 3pCRG5G, malvidin3pCRG5G and acetylated C-glycosyl flavones were pre- sumed as novel pigments in the genus Iris. As anthocyanin biosynthetic genes, full length of DFR genes (gDNA) and cDNA homologues of 3RT、F3’5’H, CHI genes were isolated. In addition, transgenic petunia lines with CHS or 5GT genes isolated from the cultivar, ‘Blue Diamond’ were obtained by Agrobacterium methods and were characterized. Finally, the defect or reduction of DFR gene expression in outer perianths of the cultivars ‘White Wedgewood’ and ‘Surprise’ were presumed to be caused by insertions LTR-like retrotransposons into promoter regions of their DFR genes.
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Research Products
(12 results)
