Survey of Diospyros spp. distributed in East Asia for identifying the origin of D. kaki and investigation of diversity among Diospyros app.

• Project/Area Number: 24405024
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 海外学術
• Research Field: Horticulture/Landscape architecture
• Research Institution: Ryukoku University (2016); Kyoto University (2012-2015)
• Principal Investigator: Yonemori Keizo 龍谷大学, 農学部, 教授 (10111949)
• Co-Investigator(Kenkyū-buntansha): 神崎 真哉 近畿大学, 農学部, 准教授 (20330243) ; 佐藤 明彦 国立研究開発法人農業・食品産業技術総合研究機構, 果樹研究所, 上席研究員 (30355440) ; 北島 宣 京都大学, (連合)農学研究科(研究院), 教授 (70135549)
• Project Period (FY): 2012-04-01 – 2017-03-31
• Project Status: Completed (Fiscal Year 2016)
• Budget Amount: ¥17,030,000 (Direct Cost: ¥13,100,000、Indirect Cost: ¥3,930,000); Fiscal Year 2015: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000); Fiscal Year 2014: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000); Fiscal Year 2013: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000); Fiscal Year 2012: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
• Keywords: 園芸学 / 果樹 / 分類 / カキ属 / Diospyros / 植物 / 分類学 / 進化 / ゲノム / 国際研究者交流 / 中国:ベトナム:タイ

Outline of Final Research Achievements

The survey was conducted in unfinished Northern mountainous area in Vietnam for obtaining new species related to D. kaki and we found several trees which bear pubescent fruits. However, these trees seem to be the same species which we collected previously in Vietnam, so that there are no new species from this survey. In addition, although we conducted resurvey of Diospyros spp. in germplasm repository of China and the campus of Kasetsart University in Thailand, we could not find new species closely related to D. kaki. The phylogenetic studies from DNA sequences of ITS and matK regions in “ye-mao-shi”, which was assumed to closely relate to D. kaki from morphological characteristics, is indicated that this species should be included with D. glandulosa which assumed to be ancestor of D. kaki, due to matK analysis, not due to ITS analysis. This contradiction of the results from each analysis should be corrected by the further analysis in the future.

Research Products

• [Journal Article] Relationships among Asian persimmon cultivars, astringent and non-astringent types (2015)
  • Author(s): Parfitt, D.E., K. Yonemori, C. Honsho, M. Nozaka, S. Kanzaki, A. Sato, M. Yamada
  • Journal Title: Tree Genetics & Genomes Volume: 11 Issue: 2 Pages: 24-24
  • DOI: 10.1007/s11295-015-0848-z
  • Peer Reviewed / Open Access
• [Presentation] Exploration for Diospyros spp. in rural area of northern Vietnam (2016)
  • Author(s): Kanzaki, S., H. T. Tran, A. Sato, K. Yonemori
  • Organizer: VI International Symposium on Persimmon
  • Place of Presentation: Valencia, Spain
  • Year and Date: 2016-10-17
• [Presentation] ベトナム北部山岳農村に分布するカキ属植物の探索 (2015)
  • Author(s): 神崎真哉、宇都宮直樹、佐藤明彦、北島宣、Tran Thi Hoa、米森敬三
  • Organizer: 園芸学会平成27年度春季大会
  • Place of Presentation: 千葉大学西千葉キャンパス
  • Year and Date: 2015-03-28 – 2015-03-29
• [Presentation] Survey of Diospyros spp. in Yunnan Province of China and Northern Vietnam for Identifying Ancestor of Japanese persimmon (D. kaki Thunb.). (2012)
  • Author(s): K. Yonemori, S. Kanzaki, A. Sato, H.T. Tran, Y. Yang, R. Wang, and Z. Luo
  • Organizer: The Fifth International Symposium on Persimmon
  • Place of Presentation: International Academic Exchanges Center, Huazhong Agricultural University, Wuhan, China
  • Year and Date: 2012-10-21