Looking with gills: The evolution and function of distributed visual systems in fan worms with a view to future resilient sensor arrays

用鳃观察:扇虫分布式视觉系统的演变和功能,着眼于未来的弹性传感器阵列

基本信息

  • 批准号:
    BB/P011357/1
  • 负责人:
  • 金额:
    $ 38.84万
  • 依托单位:
  • 依托单位国家:
    英国
  • 项目类别:
    Fellowship
  • 财政年份:
    2017
  • 资助国家:
    英国
  • 起止时间:
    2017 至 无数据
  • 项目状态:
    已结题

项目摘要

We are often fascinated to ponder how other animals see the world. Since most creatures have two primary eyes positioned prominently on the head, we are generally able to imagine some derivation or elaboration of our own view. However, there are some cases in which the visual system departs so wildly from ours that it is difficult to conceive how such a system would function, let alone provide the animal with useful information about the world. Marine fan worms possess arguably the most bizarre visual system in nature. These worms spend their lives within tubes on the sea floor, and project their eponymous fans, composed of numerous tentacles called radioles, up into the water column. These radioles are responsible for filter feeding, respiration, and amazingly - vision. In many species, the radioles are covered with variable arrangements of eyes; sometimes scattered in the hundreds on all of the radioles, other times consolidated into a pair of large compound eyes on the tips of two radioles, and in almost any arrangement in-between. These eyes likely function as a sort of optical burglar alarm, detecting the movement of looming threats and stimulating a rapid withdrawal into the fortified tube. My research has suggested that these radiolar eyes represent a completely novel evolutionary development, using light-sensing genes and neural pathways unlike those in the eyes of any other animal. These features make fan worms a spectacular study system to explore the origins of vision and the development of complexity and organization in distributed visual sensory systems. I propose to investigate the evolution and function of radiolar eyes in fan worms using molecular, neurobiological, and computational approaches. Next-generation sequencing techniques will be used to identify the genes involved in light detection and phototransduction, as well as developmental cues that give rise to the variable arrangements of eyes observed in different species of fan worms. I will also trace neuronal projections from the eyes to the brain in order to understand how information from a seemingly-chaotic, distributed array of eyes or ocelli is integrated and interpreted in order to stimulate a reliable startle response. Ultimately, I will draw upon these investigations in order to produce a synthetic model for simple, redundant, distributed optical sensory arrays that will have implications to biomimetic robotics.
我们常常着迷于思考其他动物是如何看待世界的。由于大多数生物都有两个主要的眼睛位于头部的突出位置,我们通常能够想象一些衍生或阐述我们自己的观点。然而,在某些情况下,人类的视觉系统与我们的相差甚远,以至于很难想象这样一个系统是如何运作的,更不用说为动物提供关于世界的有用信息了。海扇蠕虫拥有自然界中最奇异的视觉系统。这些蠕虫在海底的管道中度过它们的一生,并将它们的触角扇(由许多称为辐射孔的触角组成)投射到水柱中。这些放射孔负责滤食、呼吸和令人惊讶的视觉。在许多物种中,放射孔上覆盖着不同排列的眼睛;有时分散在所有放射孔上,有时在两个放射孔的尖端上合并成一对大复眼,并且几乎在任何排列之间。这些眼睛可能起到一种光学防盗报警器的作用,检测到迫在眉睫的威胁的运动,并刺激迅速撤退到强化的管道中。我的研究表明,这些放射状眼睛代表了一种全新的进化发展,它使用的感光基因和神经通路与其他任何动物的眼睛都不同。这些特点使扇形蠕虫成为一个壮观的研究系统,以探索视觉的起源和发展的复杂性和组织的分布式视觉感官系统。我建议使用分子,神经生物学和计算的方法来研究扇形蠕虫的放射眼的进化和功能。下一代测序技术将用于识别参与光检测和光转导的基因,以及引起不同种类的扇形蠕虫中观察到的眼睛可变排列的发育线索。我还将追踪从眼睛到大脑的神经元投射,以了解如何整合和解释来自一个混乱的、分布式的眼睛或单眼阵列的信息,以刺激可靠的惊吓反应。最终,我将利用这些调查,以产生一个简单的,冗余的,分布式光学传感阵列,将影响仿生机器人的合成模型。

项目成果

期刊论文数量(8)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Developmental studies provide new insights into the evolution of sense organs in Sabellariidae (Annelida).
  • DOI:
    10.1186/s12862-018-1263-5
  • 发表时间:
    2018-10-04
  • 期刊:
  • 影响因子:
    3.4
  • 作者:
    Helm C;Bok MJ;Hutchings P;Kupriyanova E;Capa M
  • 通讯作者:
    Capa M
Colour vision in thrips (Thysanoptera).
Distributed Vision: From Simple Sensors to Sophisticated Combination Eyes
分布式视觉:从简单的传感器到复杂的组合眼
The Gluopsins: Opsins without the Retinal Binding Lysine.
  • DOI:
    10.3390/cells11152441
  • 发表时间:
    2022-08-06
  • 期刊:
  • 影响因子:
    6
  • 作者:
    Guhmann, Martin;Porter, Megan L.;Bok, Michael J.
  • 通讯作者:
    Bok, Michael J.
The vertical light-gradient and its potential impact on animal distribution and behavior
  • DOI:
    10.3389/fevo.2022.951328
  • 发表时间:
    2022-08-11
  • 期刊:
  • 影响因子:
    3
  • 作者:
    Nilsson, Dan-E;Smolka, Jochen;Bok, Michael
  • 通讯作者:
    Bok, Michael
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