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地域間DNA多型解析によるナラ枯れの媒介者カシノナガキクイムシの外来種仮説の検証
https://doi.org/10.24517/00063232
https://doi.org/10.24517/0006323262216746-7343-45e1-aeac-faed23ee02f1
名前 / ファイル | ライセンス | アクション |
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SC-PR-KAMATA-N-kaken 2010-3p.pdf (203.9 kB)
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Item type | 報告書 / Research Paper(1) | |||||
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公開日 | 2021-11-12 | |||||
タイトル | ||||||
タイトル | 地域間DNA多型解析によるナラ枯れの媒介者カシノナガキクイムシの外来種仮説の検証 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Testing a invasive species hypothesis on Platypus quercivorus, a vector insect of the Japanese oak wilt by DNA analysis among regional populations | |||||
言語 | ||||||
言語 | jpn | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_18ws | |||||
資源タイプ | research report | |||||
ID登録 | ||||||
ID登録 | 10.24517/00063232 | |||||
ID登録タイプ | JaLC | |||||
著者別表示 |
Kamata, Naoto
× Kamata, Naoto |
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提供者所属 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 金沢大学理工研究域 | |||||
書誌情報 |
平成19(2007)年度 科学研究費補助金 基盤研究(B) 研究成果報告書概要 en : 2007 Fiscal Year Final Research Report Summary 巻 2005 - 2007, p. 3p., 発行日 2010-02-03 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | カシナガの世界的な分布は、日本のほか、インド・インドネシア・ニューギニア・台湾とされてきた。これまで同一種として扱われていた紀伊半島、南九州、石垣島、台湾に分布する個体群は、カシナガの亜種ないし、別種と扱うのが適当と結論された。遺伝解析においても、外部形態および、生殖器の形態においても、両者の間には明確なギャップが認められ、両者が混在している、南九州においても、中間的な形質を示す個体が見られなかったことが根拠である。現在後藤が記載準備中である。海外のカシナガを加えたDNAによる系統解析の結果、日本のカシナガ(亜種を除く)の2つの個体群(本土個体群、中琉球個体群)は遺伝的距離がもっとも遠く、本土個体群-タイ-インドネシア-中琉球個体群の並びであった。この結果は、本土個体群とタイ個体群が、比較的最近分化したことを示している。自然現象によって、この系統関係を説明することは困難であり、劇症型のナラ枯れを引き起こしているカシナガの本土個体群は、有史以降にタイから侵入したものである可能性が高いものと考えられた。一方、病原菌のRaffaelea quercivoraは、台湾から日本本土まで、あまり変異が認められなかった。これらの結果に基づき、劇症型のナラ枯れの由来について、以下のような仮説を提唱した。すなわち、有史以降、人為によってタイかその近辺から南九州に持ち込まれた日本海型カシナガに、太平洋型カシナガのR.quercivoraが乗り移った。これらとミズナラの生息域が重なるようになると、R.quercivoraに対して感受性の強いミズナラに高い死亡率を引き起こすとともに、逆に枯死したミズナラでカシナガが高い繁殖率を示し、劇症型ナラ枯れの広がりとともに、タイ由来のカシナガと、太平洋型カシナガ由来のR.quercivoraが、急速に日本本土に広がった。 | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Before starting this project, Platypus quercivorus was recorded from Japan, India, Indonesia, New Guinea, and Taiwan. We collected the species from Thailand and Vietnam, which is the new record of the distribution of this species. We found that two types were distributed in Japan, which were thought to be two independent species ("Japan-Sea type" and "Pacific -Ocean type" in this MS). These two types differed from each other morphologically and genetically. These morphological and genetic differences coincided. Regarding the "Japanese-Sea type" two populations were recognized by DNA analysis: mainland population and central Ryukyu population. Genetic distance between the two populations was farthest among four regional populations by DNA analysis including Thai and Indonesian populations. The mainland population was most close to Thai population, and the central Ryukyu population was to the Indonesian. It was difficult to explain this result by natural pattern. The mainland population was introduced from Thailand after the last glacier age probably by human activity. On contrary, the pathogenic fungus, Raffaelea quercivora did not varied so much as P quercivorus did: R. quercivora that was collected from P quercivorus in Taiwan and Japan were classified into one trade. We hypothesized an origin of the Japanese oak wilt disease as follows: Japan-Sea-type P quercivorus that were introduced from Thailand after glacier age were hijacked by R. quercivora carried by the Pacific-Ocean type at southern Kyushu, in which these two types coexist. Because Quercus crispula is highly susceptible to R. quercivora and because reproduction rate of P quercivorus is high in dead Q. crispula, epidemics of the Japanese oak wilt spread rapidly and the distribution range of the Thai population of the "Japan-Sea-type" P. quericovrus expanded fast | |||||
内容記述 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 研究課題/領域番号:17405028, 研究期間(年度):2005 – 2007 | |||||
内容記述 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 出典:「地域間DNA多型解析によるナラ枯れの媒介者カシノナガキクイムシの外来種仮説の検証」研究成果報告書 課題番号17405028 (KAKEN:科学研究費助成事業データベース(国立情報学研究所)) (https://kaken.nii.ac.jp/ja/report/KAKENHI-PROJECT-17405028/174050282007kenkyu_seika_hokoku_gaiyo/)を加工して作成 |
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著者版フラグ | ||||||
出版タイプ | AM | |||||
出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||
関連URI | ||||||
識別子タイプ | URI | |||||
関連識別子 | https://nrid.nii.ac.jp/ja/search/?kw=90303255 | |||||
関連名称 | https://nrid.nii.ac.jp/ja/search/?kw=90303255 | |||||
関連URI | ||||||
識別子タイプ | URI | |||||
関連識別子 | https://kaken.nii.ac.jp/ja/grant/KAKENHI-PROJECT-17405028/ | |||||
関連名称 | https://kaken.nii.ac.jp/ja/grant/KAKENHI-PROJECT-17405028/ | |||||
関連URI | ||||||
識別子タイプ | URI | |||||
関連識別子 | https://kaken.nii.ac.jp/ja/report/KAKENHI-PROJECT-17405028/174050282007kenkyu_seika_hokoku_gaiyo/ | |||||
関連名称 | https://kaken.nii.ac.jp/ja/report/KAKENHI-PROJECT-17405028/174050282007kenkyu_seika_hokoku_gaiyo/ |