Study of distribution and dynamics of hybrid dandelions in Western Japan based on a research by collaboration with citizens

基于与市民合作研究的西日本杂交蒲公英的分布和动态研究

• 批准号: 21510243
• 负责人: ITOH Akira
• 金额: $ 2.91万
• 依托单位: Osaka City University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2009
• 资助国家: 日本
• 起止时间: 2009 至 2011
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-21510243/
• 关键词: 保全生物学; 在来種保全; 外来生物; 雑種化; タンポポ; マイクロサテライト; 移入種; 保全; 雑種; 遺伝子汚染; 遺伝子解析

Based on a study by collaboration with citizens, 61% of apparent Taraxacum officinale(an extotic dandelion) and 31% of apparent T. laevigatum in Western Japan were hybrids with Japanese dandelions. There were areas with high hybrid ratios even in the regions where very few native dandelions were distributed. Molecular genetic analysis showed high genetic diversity in hybrid populations, which suggested frequent hybridization. On the other hand, there were little evidence of hybridization within mixed populations of native and exotic species. The results suggested that hybridization within populations and/or local areas were less frequent than immigration of hybrids from other populations or areas.

根据与市民合作的一项研究，61%的表观蒲公英和31%的表观T。日本西部的蒲公英是与日本蒲公英的杂交种。即使在本地蒲公英很少分布的地区，也有杂交比例很高的地区。分子遗传学分析表明，杂种居群具有较高的遗传多样性，表明杂交频繁。另一方面，很少有证据表明，杂交内的本地和外来物种的混合种群。结果表明，种群内和/或本地杂交的频率低于从其他种群或地区的杂交移民。

项目成果

西日本の雑種タンポポについて

关于日本西部的杂交蒲公英

• 发表时间: 2011
• 作者: 伊東明

西日本における雑種タンポポの分布状況

日本西部杂交蒲公英的分布现状

• 发表时间: 2011
• 期刊: タンポポ調査西日本2010調査報告書
• 作者: 関根久雄;他;鏡味治也;関根久雄;西本陽一;伊東明・名波哲・福西洋一・森本美樹
• 通讯作者: 伊東明・名波哲・福西洋一・森本美樹

Spatio-temporal database of urban ecosystems. two examples. Image database of street tree phenology and geo-database of native, introduced, and hybrid dandelions

城市生态系统时空数据库。

• 发表时间: 2011
• 作者: Itoh A & Ogawa M

Spatio-temporal database of urban ecosystems-two examples-Image database of street tree phenology and geo-database of native, introduced, and hybrid dandelions.

城市生态系统时空数据库——两个实例——行道树物候影像数据库和本土、引种、杂交蒲公英地理数据库。

• 发表时间: 2011
• 作者: Itoh A;Ogawa M
• 通讯作者: Ogawa M

Population genetic structure of native and exoti dandelions(Taraxacum japonicum and T. offiinale) and their hybrid in Osaka

大阪本地蒲公英和外来蒲公英（蒲公英和蒲公英）及其杂交种的种群遗传结构

• 发表时间: 2012
• 作者: Matsuyama S;Sugai S;Morimoto M;Nanami S & Itoh A
• 通讯作者: Nanami S & Itoh A