Study on origin of marine shallow water organisms in warm temperate and tropical regions - case study on crustacean anoumeans

暖温带和热带海洋浅水生物起源研究——以甲壳类阿努亚目为例

• 批准号: 22570101
• 负责人: ASAKURA Akira
• 金额: $ 2.91万
• 依托单位: Kyoto University (2012-2013)Kobe University (2010-2011)
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2010
• 资助国家: 日本
• 起止时间: 2010-04-01 至 2014-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22570101/
• 关键词: 遺伝的多様性; 熱帯; ヤドカリ類; 黒潮; 親潮; 甲殻亜門; 十脚甲殻類; 生物地理; 種分化; ミトコンドリアDNA; 異尾類; 甲殻類; mtDNA; COI遺伝子; 生活史; ヤドカリ; サンゴ礁; 岩礁; 熱帯太平洋; 系統

To reveal origins of warm and tropical marine fauna, we examined genetic divergence using shallow water hermit crabs as model organisms. Pagurus filholi is widely distributed from Oyashio Current area to Kuroshio Current area. Population in Oyashio area has winter reproductive period with short duration, and males are very aggressive for other males. But, population in Kuroshio area has summer reproductive season and male-male competition is mild. By mtDNA COI gene, no significant difference in genetic structure, so that these difference may be attributable to phenotipic originated from different water temperature. Clibanarius virescens is tropical Indo-west Pacific species but is extended its distribution toward the north to Kanto District. We examined COXI gene and found that some populations in Southeast Asia have different genetic structure from those in temperate Japan. This suggests that some genetic divergency occurs between temperate area and tropical area.

为了揭示温暖和热带海洋动物群的起源，我们使用浅水寄居蟹作为模式生物来研究遗传差异。 菲霍利Pagurus filholi广泛分布于亲潮海区至黑潮海区。 亲潮地区的种群冬季繁殖期较短，雄性对其他雄性的攻击性很强。 但黑潮地区的种群处于夏季繁殖季节，雄性之间的竞争较温和。 通过mtDNA COI基因，遗传结构没有显着差异，因此这些差异可能归因于表型起源于不同的水温。 Clibanarius virescens 是热带印度-西太平洋物种，但其分布范围向北延伸至关东地区。 我们检查了COXI基因，发现东南亚的一些人群与温带日本的人群具有不同的遗传结构。 这表明温带地区和热带地区之间存在一些遗传差异。

项目成果

Diogenes holthuisi, a new species of hermit crab (Decapoda, Anomura, Diogenidae) from shallow waters of the Ogasawara (Bonin) Islands, Japan

Diogenes holthuisi，来自日本小笠原群岛浅水区的寄居蟹新种（十足目、Anomura、Diogenidae）

• 发表时间: 2010
• 期刊: Crustaceana Monographs
• 作者: Asakura;A.;and H. Tachikawa
• 通讯作者: and H. Tachikawa