Analysis of flower color and gene resources of Phlox、 especially P.drummondii

Research Project

Project/Area Number	21580026
Research Category	Grant-in-Aid for Scientific Research (C)
Allocation Type	Single-year Grants
Section	一般
Research Field	Horticulture/Landscape architecture
Research Institution	Chiba University
Principal Investigator	KOKUBUN Hisashi 千葉大学, 環境健康フィールド科学センター, 准教授 (20282452)
Project Period (FY)	2009 – 2011
Project Status	Completed (Fiscal Year 2011)
Budget Amount *help	¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000) Fiscal Year 2011: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000) Fiscal Year 2010: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000) Fiscal Year 2009: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Keywords	フロックス / シバザクラ / 花色 / アントシアニン合成系遺伝子 / 遺伝子資源 / 花色素 / キキョウナデシコ / 園芸学 / 遺伝子
Research Abstract	We analyzed flower color and floral anthocyanin of the cultivars of Phlox drummondii and P. subulata, and found that P. drummondii showed wider variety of colors than P. subulata, and the cause was that P. drummondii produced six anthocyanidins while P. subulata did only two. The factor that differentiates cyanidin and malvidin derivatives in P. drummondii cultivars was the expression level of F3'5'H gene, and the cis-elements differed among three alleles. Phylogenetic analysis of chloroplast DNA of P. subulata cultivars revealed the involvement of other species than P. subulata.