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风口的不同发展轨迹和共生模式

Pierre Methou¹, Marion Guéganton², Jonathan T Copley³

¹X-STAR, Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Yokosuka, Kanagawa, Japan.

Evolution; international journal of organic evolution

|December 9, 2023

概括

深海物种Rimicaris hybisae和R. chacei在从青少年到次成年人的过渡期间表现出明显的发育转变,受交生体殖民的影响. 这表明水热风口生态系统的发育可塑性.

科学领域:

海洋生物学海洋生物学
发展生物学发展生物学
进化生物学进化生物学

背景情况:

大多数物种只有一条发育路径,但有些人,比如蜜蜂,表现出可塑性.
大西洋深海喷气 (Rimicaris hybisae和R. chacei) 拥有相同的COI杂型,这表明最近的分歧或共同的形态.
这些表现出不同的生态和头腔形态,与共生体依赖有关.

研究的目的:

研究R. hybisae和R. chacei. 发育过程中的解剖学变化.
了解共生体殖民化在它们独特的发展轨迹中的作用.
为了比较R. exoculata与R. chacei.的共生适应.

主要方法:

用X射线微型计算机断层扫描 (微型CT) 进行详细的解剖分析.
光在位杂交 (FISH) 来检测共生生物.
对不同生命阶段和相关物种进行比较解剖检查.

主要成果:

关键的解剖学变化发生在两种的青少年-亚成人过渡期间.
在此过渡之前,R.hybisae建立了共生,而R.chacei则没有.
解剖学证据表明,R. exoculata比R. chacei.更适应共生.

结论:

在R. hybisae和R. chacei中,不同的发育轨迹可能是由共生体殖民时间驱动的.
在关键的成人前期期间获得共生体可能会影响发育途径.
需要进一步的遗传研究来确认R.hybisae和R.chacei之间的关系以及共生者的作用.

关键词:

发展发展发展发展发展.现型性可塑性现型性可塑性这种共生是共生.

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