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Species-specific bioluminescence facilitates speciation in the deep sea

机译:特定物种的生物发光促进了深海的物种形成

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摘要

The vast darkness of the deep sea is an environment with few obvious genetic isolating barriers, and little is known regarding the macroevolutionary processes that have shaped present-day biodiversity in this habitat. Bioluminescence, the production and emission of light from a living organism through a chemical reaction, is thought to occur in approximately 80 % of the eukary-otic life that inhabits the deep sea (water depth greater than 200 m). In this study, we show, for the first time, that deep-sea fishes that possess species-specific biolumi-nescent structures (e.g., lanternfishes, dragonfishes) are diversifying into new species at a more rapid rate than deep-sea fishes that utilize bioluminescence in ways that would not promote isolation of populations (e.g., camouflage, predation). This work adds to our understanding of how life thrives and evolution shaped present-day biodiversity in the deep sea, the largest and arguably least explored habitat on earth.
机译:深海茫茫无人,是一个几乎没有明显的遗传隔离障碍的环境,对于影响该栖息地当今生物多样性的宏观进化过程知之甚少。生物发光,即通过化学反应从活生物体产生和发出的光,被认为发生在深海(水深大于200 m)的真核生物的大约80%中。在这项研究中,我们首次展示了具有特定物种生物发光结构的深海鱼类(例如灯笼鱼,龙鱼)比利用深海鱼类更快地向新物种多样化。生物发光的方式不会促进种群隔离(例如,伪装,捕食)。这项工作使我们对生命如何蓬勃发展和进化形成了当今深海中最大的生物,而深海是地球上最大和可以说最少探索的栖息地的生物多样性的理解。

著录项

  • 来源
    《Marine biology》 |2014年第5期|1139-1148|共10页
  • 作者单位

    University of Kansas, Lawrence, KS 66045, USA;

    Johnson County Community College, Overland Park,KS 66210, USA;

    University of Kansas, Lawrence, KS 66045, USA;

    American Museum of Natural History, New York, NY 10024,USA;

    University of Kansas, Lawrence, KS 66045, USA;

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  • 正文语种 eng
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