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在葡萄状中Sacculina诱导的形态女性化Pachygrapsus crassipes
Kenji Toyota1,2,3, Takehiro Ito2, Kaito Morishima2
1Noto Marine Laboratory, Institute of Nature and Environmental Technology, Kanazawa University, Ogi, Noto-cho, Ishikawa 927-0553, Japan, toyotak@se.kanazawa-u.ac.jp.
Zoological science
|October 11, 2023
概括
树头在雄性中引起显著的变化,包括女性化. 这项研究确定了特定的鱼物种及其在日本的高流行率.
科学领域:
- 海洋生物学 海洋生物学
- 寄生虫学的寄生虫学
- 甲动物研究研究
背景情况:
- 头 (Thecostraca:Cirripedia) 是高度专业的甲动物,具有独特的寄生虫适应能力.
- 成年人缺乏典型的甲动物特征,而是发展了类似根的结构,以从宿主中吸收营养.
- 一个特定的群体 - - 萨库林类动物 - - 在十足动物宿主中引起了深刻的变化,包括割和女性化.
研究的目的:
- 为了研究日本海岸沿线的葡萄 *Pachygrapsus crassipes* 的sacculinid barnacle流行率和物种组成.
- 通过分子遗传学分析,识别寄生于 *P. crassipes* 的特定类物种.
- 为了记录sacculinid寄生虫对雄性 *P. crassipes* 的形态影响.
主要方法:
- 在日本太平洋海岸 (马纳祖鲁) 和日本海海岸 (萨多岛,诺托半岛) 进行了实地调查.
- 寄生虫与宿主比率被计算为 *Pachygrapsus crassipes * .
- 分子遗传学分析被用来识别sacculinid物种,比较Manazuru,Sado和Noto种群与已知的物种如*Sacculina yatsui*和*S. confragosa*.
- 检查了寄生性雄性的外部形态.
主要成果:
- 与太平洋海岸相比,日本海沿岸的萨库利尼德-寄生虫比率显著更高.
- 分子分析将Manazuru种群与*Sacculina yatsui*联系起来,而Sado和Noto种群与*S. confragosa*联系在一起.
- 寄生于雄性 *P. crassipes* 呈现出与女性表型相似的外部形态.
结论:
- 在日本海沿岸,在 *Pachygrapsus crassipes * * 中,类虫感染的发病率更高.
- 在日本不同沿海地区发现了特殊的类物种*S. yatsui*和*S. confragosa*.
- 观察到的雄性的女性化为研究头诱导的性别改变和割的分子基础提供了有价值的模型.
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